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comparison Tools/DocGen/Content/Doc/DataAccess/ScalarSource.htm @ 0:f990fcb411a9
Копия текущей версии из github
| author | cin |
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| date | Thu, 27 Mar 2014 21:46:09 +0400 |
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| -1:000000000000 | 0:f990fcb411a9 |
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| 1 <% group # Abstract accessor attributes %> | |
| 2 | |
| 3 <p class='j'> | |
| 4 If a method returns a scalar value, this attribute can be used to specify how database returns this value. | |
| 5 The <b>ScalarSource</b> attribute take a parameter of the <b>ScalarSourceType</b> type: | |
| 6 | |
| 7 <table class='data'> | |
| 8 <tr><th>ScalarSourceType</th><th>Description</th></tr> | |
| 9 <tr><td>DataReader</td><td>Calls the <b>DbManager.ExecuteReader</b> method, and then calls <b>IDataReader.GetValue</b> method to read the value.</td></tr> | |
| 10 <tr><td>OutputParameter</td><td>Calls the <b>DbManager.ExecuteNonQuery</b> method, and then reads value from the <b>IDbDataParameter.Value</b> property.</td></tr> | |
| 11 <tr><td>ReturnValue</td><td>Calls the <b>DbManager.ExecuteNonQuery</b> method, and then reads return value from command parameter collection.</td></tr> | |
| 12 <tr><td>AffectedRows</td><td>Calls the <b>DbManager.ExecuteNonQuery</b> method, and then returns its return value.</td></tr> | |
| 13 </table> | |
| 14 </p> | |
| 15 | |
| 16 ScalarSource.cs | |
| 17 <% ..\..\..\HowTo\DataAccess\ScalarSource.cs %> | |
| 18 App.config | |
| 19 <% Doc\Data\App.config %> | |
| 20 <a href="../Data/CreateSql.htm">Create.sql script</a> |