DataColumn.ToString Method

Definition

Namespace:

System.Data

Assemblies:

netstandard.dll, System.Data.Common.dll

Source:

DataColumn.cs

Gets the Expression of the column, if one exists.

public:
 override System::String ^ ToString();

public override string ToString();

override this.ToString : unit -> string

Public Overrides Function ToString () As String

Returns

String

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

Examples

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)
    {
        Console.WriteLine(column.ToString());
    }
}

Private Sub PrintColumns(table As DataTable)
    ' Print the default string of each column in a collection.
    Dim column As DataColumn
    For Each column In table.Columns
       Console.WriteLine(column.ToString())
    Next
End Sub

See also

• Expression
• ColumnName
• Using DataSets in ADO.NET