GetColumnMappingBySchemaAction()

static ? DataColumnMapping System.Data.Common.DataColumnMappingCollection.GetColumnMappingBySchemaAction ( DataColumnMappingCollection? columnMappings, string sourceColumn, MissingMappingAction mappingAction )

inlinestatic

Definition at line 440 of file DataColumnMappingCollection.cs.

    {
        if (columnMappings != null)
        {
            int num = columnMappings.IndexOf(sourceColumn);
            if (-1 != num)
            {
                return columnMappings._items[num];
            }
        }
        if (string.IsNullOrEmpty(sourceColumn))
        {
            throw ADP.InvalidSourceColumn("sourceColumn");
        }
        return mappingAction switch
        {
            MissingMappingAction.Passthrough => new DataColumnMapping(sourceColumn, sourceColumn), 
            MissingMappingAction.Ignore => null, 
            MissingMappingAction.Error => throw ADP.MissingColumnMapping(sourceColumn), 
            _ => throw ADP.InvalidMissingMappingAction(mappingAction), 
        };
    }

References System.Data.Common.ADP.InvalidMissingMappingAction(), System.Data.Common.ADP.InvalidSourceColumn(), and System.Data.Common.ADP.MissingColumnMapping().

Referenced by System.Data.Common.DataTableMapping.GetColumnMappingBySchemaAction().