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DataSet.OnRemoveTable(DataTable) 메서드

정의

DataTable에서 DataSet을 제거할 때 발생합니다.

protected public:
 virtual void OnRemoveTable(System::Data::DataTable ^ table);
protected:
 virtual void OnRemoveTable(System::Data::DataTable ^ table);
protected internal virtual void OnRemoveTable (System.Data.DataTable table);
protected virtual void OnRemoveTable (System.Data.DataTable table);
abstract member OnRemoveTable : System.Data.DataTable -> unit
override this.OnRemoveTable : System.Data.DataTable -> unit
Protected Friend Overridable Sub OnRemoveTable (table As DataTable)
Protected Overridable Sub OnRemoveTable (table As DataTable)

매개 변수

table
DataTable

제거 중인 DataTable입니다.

예제

다음 예제에서는 메서드가 재정의된 에서 DataSet 파생된 클래스를 OnRemoveTable 보여줍니다.


public static void DemonstrateOnRemoveTable()
{
    DerivedDataSet dataSet = CreateDataSet();
    if(dataSet.Tables.Count > 0)
        dataSet.Tables.RemoveAt(0);
}

public class DerivedDataSet: DataSet
{
    protected override void OnRemoveTable(DataTable table)
    {
        Console.WriteLine(
            "The '{0}' DataTable has been removed from the DataSet",
            table.TableName);
    }
}

public static DerivedDataSet CreateDataSet()
{
    // Create a DataSet with one table containing two columns.
    DerivedDataSet derived = new DerivedDataSet();

    // Add table to DataSet.
    DataTable table = derived.Tables.Add("Items");

    // Add two columns.
    DataColumn column = table.Columns.Add("id", typeof(int));
    column.AutoIncrement = true;
    table.Columns.Add("item", typeof(int));

    // Set primary key.
    table.PrimaryKey = new DataColumn[] {table.Columns["id"]};

    return derived;
}

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 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

설명

이 메서드는 하위 클래스에 의해 재정의되어 테이블이 제거되지 않도록 제한할 수 있습니다.

적용 대상

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