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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 _
)

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

.NET Framework

Supported in: 4.6, 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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