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1 using System;
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2 using System.Linq;
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3
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4 using BLToolkit.Data.DataProvider;
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5
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6 using NUnit.Framework;
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7
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8 namespace Data.Linq
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9 {
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10 [TestFixture]
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11 public class ConvertExpression : TestBase
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12 {
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13 [Test]
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14 public void Select1()
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15 {
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16 ForEachProvider(db => AreEqual(
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17 from p in Parent
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18 let children = p.Children.Where(c => c.ParentID > 1)
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19 select children.Sum(c => c.ChildID),
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20 from p in db.Parent
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21 let children = p.Children.Where(c => c.ParentID > 1)
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22 select children.Sum(c => c.ChildID)));
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23 }
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24
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25 [Test]
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26 public void Select2()
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27 {
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28 ForEachProvider(db => AreEqual(
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29 from p in Parent
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30 let children1 = p.Children.Where(c => c.ParentID > 1)
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31 let children2 = children1.Where(c => c.ParentID < 10)
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32 select children2.Sum(c => c.ChildID),
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33 from p in db.Parent
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34 let children1 = p.Children.Where(c => c.ParentID > 1)
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35 let children2 = children1.Where(c => c.ParentID < 10)
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36 select children2.Sum(c => c.ChildID)));
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37 }
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38
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39 [Test]
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40 public void Select3()
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41 {
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42 ForEachProvider(db => AreEqual(
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43 Parent
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44 .Select(p => new { children1 = p.Children. Where(c => c.ParentID > 1) })
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45 .Select(t => new { children2 = t.children1.Where(c => c.ParentID < 10) })
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46 .Select(t => t.children2.Sum(c => c.ChildID)),
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47 db.Parent
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48 .Select(p => new { children1 = p.Children. Where(c => c.ParentID > 1) })
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49 .Select(t => new { children2 = t.children1.Where(c => c.ParentID < 10) })
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50 .Select(t => t.children2.Sum(c => c.ChildID))));
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51 }
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52
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53 [Test]
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54 public void Select4()
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55 {
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56 ForEachProvider(db => AreEqual(
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57 Parent
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58 .Select(p => p.Children. Where(c => c.ParentID > 1))
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59 .Select(t => t.Where(c => c.ParentID < 10))
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60 .Select(t => t.Sum(c => c.ChildID)),
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61 db.Parent
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62 .Select(p => p.Children. Where(c => c.ParentID > 1))
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63 .Select(t => t.Where(c => c.ParentID < 10))
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64 .Select(t => t.Sum(c => c.ChildID))));
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65 }
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66
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67 [Test]
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68 public void Where1()
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69 {
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70 ForEachProvider(db => AreEqual(
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71 from p in Parent
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72 let children1 = p.Children.Where(c => c.ParentID > 1)
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73 let children2 = children1.Where(c => c.ParentID < 10)
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74 where children1.Any()
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75 select children2.Sum(c => c.ChildID),
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76 from p in db.Parent
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77 let children1 = p.Children.Where(c => c.ParentID > 1)
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78 let children2 = children1.Where(c => c.ParentID < 10)
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79 where children1.Any()
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80 select children2.Sum(c => c.ChildID)));
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81 }
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82
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83 [Test]
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84 public void Where2()
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85 {
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86 ForEachProvider(db => AreEqual(
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87 from p in Parent
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88 let children1 = p.Children.Where(c => c.ParentID > 1)
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89 where children1.Any()
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90 let children2 = children1.Where(c => c.ParentID < 10)
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91 select children2.Sum(c => c.ChildID),
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92 from p in db.Parent
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93 let children1 = p.Children.Where(c => c.ParentID > 1)
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94 where children1.Any()
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95 let children2 = children1.Where(c => c.ParentID < 10)
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96 select children2.Sum(c => c.ChildID)));
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97 }
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98
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99 [Test]
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100 public void Where3()
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101 {
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102 ForEachProvider(db => AreEqual(
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103 from p in Parent
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104 let children1 = p.Children.Where(c => c.ParentID > 1)
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105 let children2 = children1.Where(c => c.ParentID < 10)
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106 where children2.Any()
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107 select children2.Sum(c => c.ChildID),
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108 from p in db.Parent
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109 let children1 = p.Children.Where(c => c.ParentID > 1)
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110 let children2 = children1.Where(c => c.ParentID < 10)
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111 where children2.Any()
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112 select children2.Sum(c => c.ChildID)));
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113 }
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114
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115 //[Test]
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116 public void Where4()
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117 {
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118 ForEachProvider(db => AreEqual(
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119 Parent
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120 .Select(p => new { p, children1 = p.Children. Where(c => c.ParentID > 1) })
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121 .Where (t => t.children1.Any()),
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122 db.Parent
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123 .Select(p => new { p, children1 = p.Children. Where(c => c.ParentID > 1) })
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124 .Where (t => t.children1.Any())));
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125 }
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126
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127 //[Test]
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128 public void Where5()
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129 {
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130 ForEachProvider(db => AreEqual(
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131 Parent
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132 .Select(p => new { children1 = p.Children. Where(c => c.ParentID > 1) })
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133 .Where (t => t.children1.Any()),
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134 db.Parent
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135 .Select(p => new { children1 = p.Children. Where(c => c.ParentID > 1) })
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136 .Where (t => t.children1.Any())));
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137 }
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138
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139 //[Test]
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140 public void Where6()
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141 {
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142 ForEachProvider(db => AreEqual(
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143 Parent
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144 .Select(p => p.Children. Where(c => c.ParentID > 1))
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145 .Where (t => t.Any()),
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146 db.Parent
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147 .Select(p => p.Children. Where(c => c.ParentID > 1))
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148 .Where (t => t.Any())));
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149 }
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150
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151 [Test]
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152 public void Any1()
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153 {
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154 ForEachProvider(db => Assert.AreEqual(
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155 Parent
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156 .Select(p => new { p, children1 = p.Children.Where(c => c.ParentID > 1) })
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157 .Any(p => p.children1.Any()),
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158 db.Parent
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159 .Select(p => new { p, children1 = p.Children.Where(c => c.ParentID > 1) })
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160 .Any(p => p.children1.Any())));
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161 }
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162
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163 [Test]
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164 public void Any2()
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165 {
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166 ForEachProvider(db => Assert.AreEqual(
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167 Parent
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168 .Select(p => p.Children.Where(c => c.ParentID > 1))
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169 .Any(p => p.Any()),
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170 db.Parent
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171 .Select(p => p.Children.Where(c => c.ParentID > 1))
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172 .Any(p => p.Any())));
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173 }
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174
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175 [Test]
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176 public void Any3()
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177 {
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178 ForEachProvider(db => Assert.AreEqual(
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179 Parent
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180 .Select(p => new { p, children1 = p.Children.Where(c => c.ParentID > 1) })
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181 .Where(p => p.children1.Any())
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182 .Any(),
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183 db.Parent
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184 .Select(p => new { p, children1 = p.Children.Where(c => c.ParentID > 1) })
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185 .Where(p => p.children1.Any())
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186 .Any()));
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187 }
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188
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189 //[Test]
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190 public void Any4()
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191 {
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192 ForEachProvider(db => Assert.AreEqual(
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193 Parent
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194 .Select(p => new { children1 = p.Children.Where(c => c.ParentID > 1) })
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195 .Where(p => p.children1.Any())
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196 .Any(),
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197 db.Parent
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198 .Select(p => new { children1 = p.Children.Where(c => c.ParentID > 1) })
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199 .Where(p => p.children1.Any())
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200 .Any()));
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201 }
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202
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203
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204 [Test]
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205 public void LetTest1([DataContexts(ProviderName.SqlCe, ProviderName.Informix, ProviderName.Sybase)] string context)
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206 {
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207 using (var db = GetDataContext(context))
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208 AreEqual(
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209 from p in Parent
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210 let ch = p.Children
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211 where ch.FirstOrDefault() != null
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212 select ch.FirstOrDefault().ParentID
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213 ,
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214 from p in db.Parent
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215 let ch = p.Children
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216 where ch.FirstOrDefault() != null
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217 select ch.FirstOrDefault().ParentID);
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218 }
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219
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220 [Test]
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221 public void LetTest2()
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222 {
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223 ForEachProvider(
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224 new[] { ProviderName.SqlCe, ProviderName.Informix, ProviderName.Sybase },
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225 db => AreEqual(
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226 from p in Parent
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227 let ch = p.Children
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228 where ch.FirstOrDefault() != null
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229 select p
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230 ,
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231 from p in db.Parent
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232 let ch = p.Children
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233 where ch.FirstOrDefault() != null
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234 select p));
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235 }
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236
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237 [Test]
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238 public void LetTest3()
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239 {
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240 ForEachProvider(
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241 new[] { ProviderName.Informix, ProviderName.Sybase },
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242 db => AreEqual(
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243 from p in Parent
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244 let ch = Child
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245 select ch.FirstOrDefault().ParentID
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246 ,
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247 from p in db.Parent
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248 let ch = db.Child
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249 select ch.FirstOrDefault().ParentID));
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250 }
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251
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252 [Test]
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253 public void LetTest4()
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254 {
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255 BLToolkit.Common.Configuration.Linq.AllowMultipleQuery = true;
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256
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257 ForEachProvider(
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258 new[] { ProviderName.Informix, ProviderName.Sybase },
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259 db => AreEqual(
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260 from p in Parent
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261 let ch1 = Child.Where(c => c.ParentID == p.ParentID)
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262 let ch2 = ch1.Where(c => c.ChildID > -100)
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263 select new
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264 {
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265 Any = ch2.Any(),
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266 Count = ch2.Count(),
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267 First1 = ch2.FirstOrDefault(c => c.ParentID > 0),
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268 First2 = ch2.FirstOrDefault()
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269 }
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270 ,
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271 from p in db.Parent
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272 let ch1 = db.Child.Where(c => c.ParentID == p.ParentID)
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273 let ch2 = ch1.Where(c => c.ChildID > -100)
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274 select new
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275 {
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276 Any = ch2.Any(),
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277 Count = ch2.Count(),
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278 First1 = ch2.FirstOrDefault(c => c.ParentID > 0),
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279 First2 = ch2.FirstOrDefault()
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280 }));
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281
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282 BLToolkit.Common.Configuration.Linq.AllowMultipleQuery = false;
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283 }
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284
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285 [Test]
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286 public void LetTest5()
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287 {
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288 BLToolkit.Common.Configuration.Linq.AllowMultipleQuery = true;
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289
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290 ForEachProvider(
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291 new[] { ProviderName.Informix, ProviderName.Sybase },
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292 db => AreEqual(
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293 from p in Parent
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294 let ch1 = Child.Where(c => c.ParentID == p.ParentID)
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295 let ch2 = ch1.Where(c => c.ChildID > -100)
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296 select new
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297 {
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298 Any = ch2.Any(),
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299 Count = ch2.Count(),
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300 First1 = ch2.FirstOrDefault(c => c.ParentID > 0) == null ? 0 : ch2.FirstOrDefault(c => c.ParentID > 0).ParentID,
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301 First2 = ch2.FirstOrDefault()
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302 }
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303 ,
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304 from p in db.Parent
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305 let ch1 = db.Child.Where(c => c.ParentID == p.ParentID)
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306 let ch2 = ch1.Where(c => c.ChildID > -100)
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307 select new
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308 {
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309 Any = ch2.Any(),
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310 Count = ch2.Count(),
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311 First1 = ch2.FirstOrDefault(c => c.ParentID > 0).ParentID,
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312 First2 = ch2.FirstOrDefault()
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313 }));
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314
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315 BLToolkit.Common.Configuration.Linq.AllowMultipleQuery = false;
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316 }
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317
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318 [Test]
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319 public void LetTest6()
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320 {
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321 BLToolkit.Common.Configuration.Linq.AllowMultipleQuery = true;
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322 //BLToolkit.Common.Configuration.Linq.GenerateExpressionTest = true;
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323
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324 ForEachProvider(
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325 new[] { ProviderName.Informix, ProviderName.Sybase },
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326 db => AreEqual(
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327 (
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328 from p in Parent
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329 let ch1 = Child.Where(c => c.ParentID == p.ParentID)
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330 let ch2 = ch1.Where(c => c.ChildID > -100)
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331 select new
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332 {
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333 p.ParentID,
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334 Any = ch2.Any(),
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335 Count = ch2.Count(),
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336 First1 = ch2.FirstOrDefault(c => c.ParentID > 0) == null ? 0 : ch2.FirstOrDefault(c => c.ParentID > 0).ParentID,
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337 First2 = ch2.FirstOrDefault()
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338 }
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339 ).Where(t => t.ParentID > 0)
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340 ,
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341 (
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342 from p in db.Parent
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343 let ch1 = db.Child.Where(c => c.ParentID == p.ParentID)
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344 let ch2 = ch1.Where(c => c.ChildID > -100)
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345 select new
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346 {
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347 p.ParentID,
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348 Any = ch2.Any(),
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349 Count = ch2.Count(),
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350 First1 = ch2.FirstOrDefault(c => c.ParentID > 0).ParentID,
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351 First2 = ch2.FirstOrDefault()
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352 }
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353 ).Where(t => t.ParentID > 0)));
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354
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355 BLToolkit.Common.Configuration.Linq.AllowMultipleQuery = false;
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356 }
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357
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358 [Test]
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359 public void LetTest7()
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360 {
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361 BLToolkit.Common.Configuration.Linq.AllowMultipleQuery = true;
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362
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363 ForEachProvider(
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364 new[] { ProviderName.Informix, ProviderName.Sybase },
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365 db => AreEqual(
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366 (
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367 from p in Parent
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368 let ch1 = Child.Where(c => c.ParentID == p.ParentID)
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369 let ch2 = ch1.Where(c => c.ChildID > -100)
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370 select new
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371 {
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372 p.ParentID,
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373 Any = ch2.Any(),
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374 Count = ch2.Count(),
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375 First1 = ch2.FirstOrDefault(c => c.ParentID > 0) == null ? 0 : ch2.FirstOrDefault(c => c.ParentID > 0).ParentID,
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376 First2 = ch2.FirstOrDefault()
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377 }
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378 ).Where(t => t.ParentID > 0).Take(5000)
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379 ,
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380 (
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381 from p in db.Parent
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382 let ch1 = db.Child.Where(c => c.ParentID == p.ParentID)
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383 let ch2 = ch1.Where(c => c.ChildID > -100)
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384 select new
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385 {
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386 p.ParentID,
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387 Any = ch2.Any(),
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388 Count = ch2.Count(),
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389 First1 = ch2.FirstOrDefault(c => c.ParentID > 0).ParentID,
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390 First2 = ch2.FirstOrDefault()
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391 }
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392 ).Where(t => t.ParentID > 0).Take(5000)));
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393
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394 BLToolkit.Common.Configuration.Linq.AllowMultipleQuery = false;
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395 }
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396
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397 [Test]
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398 public void LetTest8()
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399 {
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400 BLToolkit.Common.Configuration.Linq.AllowMultipleQuery = true;
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401
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402 ForEachProvider(
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403 db => AreEqual(
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404 from p in Parent
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405 let ch1 = Child.Where(c => c.ParentID == p.ParentID)
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406 let ch2 = ch1.Where(c => c.ChildID > -100)
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407 let ch3 = ch2.FirstOrDefault(c => c.ParentID > 0)
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408 select new
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409 {
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410 First1 = ch3 == null ? 0 : ch3.ParentID,
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411 Any = ch2.Any(),
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412 Count = ch2.Count(),
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413 First2 = ch2.FirstOrDefault()
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414 }
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415 ,
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416 from p in db.Parent
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417 let ch1 = db.Child.Where(c => c.ParentID == p.ParentID)
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418 let ch2 = ch1.Where(c => c.ChildID > -100)
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419 let ch3 = ch2.FirstOrDefault(c => c.ParentID > 0)
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420 select new
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421 {
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422 First1 = ch3 == null ? 0 : ch3.ParentID,
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423 Any = ch2.Any(),
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424 Count = ch2.Count(),
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425 First2 = ch2.FirstOrDefault()
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426 }));
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427
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428 BLToolkit.Common.Configuration.Linq.AllowMultipleQuery = false;
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429 }
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430
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431 [Test]
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432 public void LetTest9()
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433 {
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434 BLToolkit.Common.Configuration.Linq.AllowMultipleQuery = true;
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435
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436 ForEachProvider(
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437 db => AreEqual(
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438 (
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439 from p in Parent
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440 let ch1 = Child.Where(c => c.ParentID == p.ParentID)
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441 select new
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442 {
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443 First = ch1.FirstOrDefault()
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444 }
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445 ).Take(10)
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446 ,
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447 (
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448 from p in db.Parent
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449 let ch1 = db.Child.Where(c => c.ParentID == p.ParentID)
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450 select new
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451 {
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452 First = ch1.FirstOrDefault()
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453 }
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454 ).Take(10)));
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455
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456 BLToolkit.Common.Configuration.Linq.AllowMultipleQuery = false;
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457 }
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458
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459 [Test]
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460 public void LetTest10()
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461 {
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462 BLToolkit.Common.Configuration.Linq.AllowMultipleQuery = true;
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463
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464 ForEachProvider(
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465 db => Assert.AreEqual(
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466 (
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467 from p in Parent
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468 let ch1 = Child.Where(c => c.ParentID == p.ParentID)
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469 select new
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470 {
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471 First = ch1.FirstOrDefault()
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472 }
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473 ).Any()
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474 ,
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475 (
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476 from p in db.Parent
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477 let ch1 = db.Child.Where(c => c.ParentID == p.ParentID)
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478 select new
|
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479 {
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480 First = ch1.FirstOrDefault()
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481 }
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482 ).Any()));
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483
|
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484 BLToolkit.Common.Configuration.Linq.AllowMultipleQuery = false;
|
|
|
485 }
|
|
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486
|
|
|
487 [Test]
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|
|
488 public void LetTest11([DataContexts] string context)
|
|
|
489 {
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490 BLToolkit.Common.Configuration.Linq.AllowMultipleQuery = true;
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491
|
|
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492 using (var db = GetDataContext(context))
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493 AreEqual(
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494 from p in Parent
|
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495 let ch1 = Child.FirstOrDefault(c => c.ParentID > 0)
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496 let ch2 = Child.Where(c => c.ChildID > -100)
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|
|
497 select new
|
|
|
498 {
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|
|
499 First1 = ch1 == null ? 0 : ch1.ParentID,
|
|
|
500 First2 = ch2.FirstOrDefault()
|
|
|
501 }
|
|
|
502 ,
|
|
|
503 from p in db.Parent
|
|
|
504 let ch1 = db.Child.FirstOrDefault(c => c.ParentID > 0)
|
|
|
505 let ch2 = Child.Where(c => c.ChildID > -100)
|
|
|
506 select new
|
|
|
507 {
|
|
|
508 First1 = ch1 == null ? 0 : ch1.ParentID,
|
|
|
509 First2 = ch2.FirstOrDefault()
|
|
|
510 });
|
|
|
511
|
|
|
512 BLToolkit.Common.Configuration.Linq.AllowMultipleQuery = false;
|
|
|
513 }
|
|
|
514 }
|
|
|
515 }
|
