ToString Method

DataColumn.ToString Method ()


Gets the Expression of the column, if one exists.

Namespace:   System.Data
Assembly:  System.Data (in System.Data.dll)

public override string ToString()

Return Value

Type: System.String

The Expression value, if the property is set; otherwise, the ColumnName property.

The following example uses the ToString property to return the default string of each member of a collection of DataColumn objects.

private void PrintColumns(DataTable table)
    // Print the default string of each column in a collection.
    foreach(DataColumn column in table.Columns)

.NET Framework
Available since 1.1
Return to top
© 2015 Microsoft