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DataColumnCollection.Clear Method

Clears the collection of any columns.

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

public void Clear()

If the collection is successfully changed by adding or removing columns, the CollectionChanged event occurs.

The following example clears the columns collection.


private void ClearColumnsCollection(DataTable table)
{
    DataColumnCollection columns;
    // Get the DataColumnCollection from a  
    // DataTable in a DataSet.
    columns = table.Columns;
    columns.Clear();
}

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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