DataTableMapping.GetColumnMappingBySchemaAction Method
Definition
Important
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Gets a DataColumn from the specified DataTable using the specified MissingMappingAction value and the name of the DataColumn.
public:
System::Data::Common::DataColumnMapping ^ GetColumnMappingBySchemaAction(System::String ^ sourceColumn, System::Data::MissingMappingAction mappingAction);
public System.Data.Common.DataColumnMapping? GetColumnMappingBySchemaAction (string sourceColumn, System.Data.MissingMappingAction mappingAction);
public System.Data.Common.DataColumnMapping GetColumnMappingBySchemaAction (string sourceColumn, System.Data.MissingMappingAction mappingAction);
member this.GetColumnMappingBySchemaAction : string * System.Data.MissingMappingAction -> System.Data.Common.DataColumnMapping
Public Function GetColumnMappingBySchemaAction (sourceColumn As String, mappingAction As MissingMappingAction) As DataColumnMapping
Parameters
- sourceColumn
- String
The name of the DataColumn.
- mappingAction
- MissingMappingAction
One of the MissingMappingAction values.
Returns
A data column.
Exceptions
The mappingAction
parameter was set to Error
, and no mapping was specified.
Remarks
If the DataColumnMapping exists, it is returned.
If the DataColumnMapping does not exist, for a given MissingMappingAction, the following actions occur:
MissingMappingAction | Action taken |
---|---|
Passthrough |
Creates a DataColumnMapping with the specified source column name as both the source column name and the DataSet column name. This DataColumnMapping is not added to the collection. |
Error |
An InvalidOperationException is generated if the specified column mapping is missing. |
Ignore |
Gets a null value. |
Applies to
See also
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