NGWS SDK Documentation  

This is preliminary documentation and subject to change.
To comment on this topic, please send us email at ngwssdk@microsoft.com. Thanks!

ColumnsCollection.Add ()

Creates and adds a DataColumn to a columns collection.

[Visual Basic]
Overloads Public Function Add() As DataColumn
[C#]
public DataColumn Add();
[C++]
public: DataColumn* Add();
[JScript]
public function Add() : DataColumn;

Return Value

The newly created DataColumn.

Remarks

A default name ("Column1", "Column2", etc.) is given to the column.

Example [Visual Basic]

The following example creates and adds a new DataColumn to a ColumnsCollection of a DataTable.

[Visual Basic]

Private Sub AddColumn()
   Dim cols As ColumnsCollection
   Dim myCol As DataColumn
   ' Get the ColumnsCollection from a table in a DataSet.
   cols = New DataSet1.Tables("Prices").Columns
   myCol = cols.Add()
   With myCol
      .DataType = System.Type.GetType("System.Currency")
      .ColumnName = "Total"
      .Expression = "UnitPrice * Quantity"
      .ReadOnly = True
      .Unique = False
      .Add(myCol)
   End With
End Sub

See Also

ColumnsCollection Class | ColumnsCollection Members | System.Data Namespace | ColumnsCollection.Add Overload List | ColumnName | Contains | DataType | Expression