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1 using System;
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2 using System.Data;
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3 using System.Data.OleDb;
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4
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5 namespace BLToolkit.Data.DataProvider
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6 {
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7 // Data Provider for DataDirect Sybase ADO Provider 4.2
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8 //
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9 public sealed class SybaseAdoDataProvider : OleDbDataProvider
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10 {
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11 public override bool DeriveParameters(IDbCommand command)
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12 {
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13 OleDbCommandBuilder.DeriveParameters((OleDbCommand)command);
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14 return true;
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15 }
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16
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17 public override object Convert(object value, ConvertType convertType)
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18 {
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19 switch (convertType)
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20 {
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21 case ConvertType.NameToQueryParameter:
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22 return "?";
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23
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24 case ConvertType.NameToCommandParameter:
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25 case ConvertType.NameToSprocParameter:
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26 return value;
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27 }
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28
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29 return base.Convert(value, convertType);
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30 }
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31
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32 public override void AttachParameter(IDbCommand command, IDbDataParameter parameter)
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33 {
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34 if (parameter.Value is string && parameter.DbType == DbType.Guid)
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35 parameter.DbType = DbType.AnsiString;
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36
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37 base.AttachParameter(command, parameter);
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38 }
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39
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40 public override string Name
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41 {
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42 get { return "SybaseAdo"; }
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43 }
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44 }
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45 }
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