Parameters

columnMappings

The System.Data.Common.DataColumnMappingCollection.

sourceColumn

The case-sensitive source column name to find.

mappingAction

One of the System.Data.MissingMappingAction values.

Returns

A System.Data.Common.DataColumnMapping object.

Remarks

If the System.Data.Common.DataColumnMapping exists in the collection, it is returned.

If the System.Data.Common.DataColumnMapping does not exist in the collection, for a given System.Data.MissingMappingAction, the following actions occur:

Passthrough	Creates a System.Data.Common.DataColumnMapping with the specified source column name as both the source column name and the System.Data.DataSet column name. This System.Data.Common.DataColumnMapping is not added to the collection.
Error	An InvalidOperationException is generated if the specified column mapping is missing.
Ignore	Gets a null value.

Requirements