System.Data.Common Namespace   DataTableMapping Class

Returns a DataColumnMapping with the specified SourceColumn name and MissingMappingAction.

[ VB ]
Public Function GetColumnMappingBySchemaAction ( _
   ByVal sourceColumn As String, _
   ByVal mappingAction As MissingMappingAction _
) As DataColumnMapping

[ C# ]
public DataColumnMapping GetColumnMappingBySchemaAction (
   string sourceColumn,
   MissingMappingAction mappingAction
);

[ C++ ]
public: DataColumnMapping* GetColumnMappingBySchemaAction (
   String* sourceColumn,
   MissingMappingAction mappingAction
);

[ JScript ]
public function GetColumnMappingBySchemaAction (
   columnMappings : DataTableMapping,
   sourceColumn : String,
   mappingAction : MissingMappingAction
) : DataColumnMapping;

sourceColumn

The case-sensitive name of a SourceColumn to find.

mappingAction

One of the MissingMappingAction values.

A DataColumnMapping object.

If the DataColumnMapping exists, it is returned. Otherwise, for a given MissingMappingAction, the following happens:

The following example demonstrates using the GetColumnMappingBySchemaAction method to return a specified DataColumnMapping object.

public void FindDataTableMapping ( DataTableMapping myTable ) {
   // get column mappings
   DataColumnMappingCollection myFields = myTable.ColumnMappings;
   if ( myFields.Contains ( "Description" ) ) {
      DataColumnMapping myField = 
         myTable.GetColumnMappingBySchemaAction 
            ( "Description", MissingMappingAction.Ignore );
   }
}

Public Sub FindDataTableMapping ( ByVal myTable As DataTableMapping )
   ' get column mappings
   Dim myFields As DataColumnMappingCollection = myTable.ColumnMappings;
   If myFields.Contains ( "Description" ) Then
      Dim myField As DataColumnMapping = _
         myTable.GetColumnMappingBySchemaAction _
            ( "Description", MissingMappingAction.Ignore )
   End If
End Sub

DataTableMapping Members