Posts:
1
From:
mexico
Registered:
9/8/09
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How important is the order of properties in the source file?
Posted:
Sep 8, 2009 7:19 PM
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I have a stored procedure that returns two columns. The first is Timestamp (nullable) and the second is Integer (nullable).
I have a method in my DataContext to execute this function, as follows:
[Function(Name = "SpName")]
public ISingleResult<MyClass2> My2AuthorizedTransactionsBOGrid(
[Parameter(Name = "IdCardProgram", DbType = "Int")] int idCardProgram,
[Parameter(Name = "IdUser", DbType = "Int")] int idUser)
{
IExecuteResult result =
this.ExecuteMethodCall(
this,
((MethodInfo) (MethodInfo.GetCurrentMethod())),
idCardProgram,
idUser);
return ((ISingleResult<MyClass2>) (result.ReturnValue));
}
I have a class that I use to populate the results, as follows:
public class MyClass2
{
[Column(DbType = "Int", Name = "Flag")]
public bool? IsRelated
{
get;
set;
}
[Column(DbType = "rowversion", Name = "IdTimer")]
public Binary RowId
{
get;
set;
}
}
If I placed the Rowid property under the IsRelated property, this creates an exception InvalidCastException, Cannot cast from 'System.DBNull' type to 'System.Byte[]' type.
If I placed the Rowid property below the IsRelated property, everything works fine.
How important is the order in which the properties are placed in the source file? The fact that I had never happened before.
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