DataAdapter.TableMappings DataAdapter.TableMappings DataAdapter.TableMappings DataAdapter.TableMappings Property

Definition

Gets a collection that provides the master mapping between a source table and a DataTable.

public:
 property System::Data::Common::DataTableMappingCollection ^ TableMappings { System::Data::Common::DataTableMappingCollection ^ get(); };
[System.Data.DataSysDescription("DataAdapter_TableMappings")]
public System.Data.Common.DataTableMappingCollection TableMappings { get; }
member this.TableMappings : System.Data.Common.DataTableMappingCollection
Public ReadOnly Property TableMappings As DataTableMappingCollection

Property Value

A collection that provides the master mapping between the returned records and the DataSet. The default value is an empty collection.

Examples

The following example uses a derived class, OleDbDataAdapter, to add DataTableMapping objects to its TableMappings collection and display a list of those mapped source tables. This example assumes that an OleDbDataAdapter has already been created.

public void ShowTableMappings() {
   // ...
   // create myDataAdapter
   // ...
   myDataAdapter.TableMappings.Add("Categories","DataCategories");
   myDataAdapter.TableMappings.Add("Orders","DataOrders");
   myDataAdapter.TableMappings.Add("Products","DataProducts");
   string myMessage = "Table Mappings:\n";
   for(int i=0;i < myDataAdapter.TableMappings.Count;i++) {
      myMessage += i.ToString() + " "
         + myDataAdapter.TableMappings[i].ToString() + "\n";
   }
   MessageBox.Show(myMessage);
}
Public Sub ShowTableMappings()
    ' ...
    ' create myDataAdapter
    ' ...
    myDataAdapter.TableMappings.Add("Categories", "DataCategories")
    myDataAdapter.TableMappings.Add("Orders", "DataOrders")
    myDataAdapter.TableMappings.Add("Products", "DataProducts")
    Dim myMessage As String = "Table Mappings:" + ControlChars.Cr
    Dim i As Integer
    For i = 0 To myDataAdapter.TableMappings.Count - 1
        myMessage += i.ToString() + " " _
           + myDataAdapter.TableMappings(i).ToString() + ControlChars.Cr
    Next i
    MessageBox.Show(myMessage)
End Sub

Remarks

When reconciling changes, the DataAdapter uses the DataTableMappingCollection collection to associate the column names used by the data source with the column names used by the DataSet.

Applies to

See also