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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)

Parameters

table
Type: System.Data.DataTable

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 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Framework

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0
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