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OnRemoveTable Method

DataSet.OnRemoveTable Method

Occurs when a DataTable is removed from a DataSet.

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

'Declaration
Protected Friend Overridable Sub OnRemoveTable ( _
	table As DataTable _
)
'Usage
Dim table As DataTable

Me.OnRemoveTable(table)
protected void OnRemoveTable (
	DataTable table
)
protected internal function OnRemoveTable (
	table : DataTable
)
Not applicable.

Parameters

table

The DataTable being removed.

This method can be overridden by subclasses to restrict tables from being removed.

The following example shows a class derived from the DataSet with the OnRemoveTable method overridden.


Public Shared Sub DemonstrateOnRemoveTable()
	Dim dataSet As DerivedDataSet = CreateDataSet()
	If dataSet.Tables.Count > 0 Then dataSet.Tables.RemoveAt(0)
End Sub

Public Class DerivedDataSet
	Inherits DataSet
	Protected Overrides Sub OnRemoveTable(table As DataTable)
		Console.WriteLine( _
            "The '{0}' DataTable has been removed from the DataSet", _
			table.TableName)
	End Sub
End Class

Public Shared Function CreateDataSet() As DerivedDataSet
	' Create a DataSet with one table containing two columns.
	Dim derived As DerivedDataSet = New DerivedDataSet()

	' Add table to DataSet.
	Dim table As DataTable = derived.Tables.Add("Items")

	' Add two columns.
	Dim column As DataColumn = table.Columns.Add("id", _
        Type.GetType("System.Int32"))
	column.AutoIncrement = True
	table.Columns.Add("item", Type.GetType("System.Int32"))

	' Set primary key.
	table.PrimaryKey = New DataColumn() {table.Columns("id")}

	return derived
End Function

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0

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