DataGridTableStyle.AllowSortingChanged-Ereignis

Tritt ein, wenn sich der AllowSorting-Eigenschaftenwert ändert.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

Syntax

'Declaration
Public Event AllowSortingChanged As EventHandler
'Usage
Dim instance As DataGridTableStyle
Dim handler As EventHandler

AddHandler instance.AllowSortingChanged, handler

public event EventHandler AllowSortingChanged

public:
event EventHandler^ AllowSortingChanged {
    void add (EventHandler^ value);
    void remove (EventHandler^ value);
}

/** @event */
public void add_AllowSortingChanged (EventHandler value)

/** @event */
public void remove_AllowSortingChanged (EventHandler value)

JScript unterstützt die Verwendung von Ereignissen, aber nicht die Deklaration von neuen Ereignissen.

Hinweise

Weitere Informationen zum Behandeln von Ereignissen finden Sie unter Behandeln von Ereignissen.

Beispiel

Im folgenden Codebeispiel können Sie die Sortierfunktion eines DataGrid ein- und ausschalten, indem Sie auf eine Schaltfläche klicken. Der aktuelle Sortierstatus wird in einer Beschriftung angezeigt. Für dieses Beispiel ist es erforderlich, dass ein DataGrid mit einem System.Data.DataSet, das Daten enthält, ein Button und ein Label in einem Form vorhanden sind.

Private Sub DataGridTableStyle_Sample_Load(ByVal sender As Object, _
                        ByVal e As EventArgs) Handles MyBase.Load
   myDataGridTableStyle1 = New DataGridTableStyle()

   mylabel.Text = "Sorting Status :" + myDataGridTableStyle1.AllowSorting.ToString()
   If myDataGridTableStyle1.AllowSorting = True Then
      btnApplyStyles.Text = "Remove Sorting"
   Else
      btnApplyStyles.Text = "Apply Sorting"
   End If
   ' Attach custom event handlers.
   AddHandler myDataGridTableStyle1.AllowSortingChanged, AddressOf AllowSortingChanged_Handler
   myDataGridTableStyle1.MappingName = "Customers"
End Sub 'DataGridTableStyle_Sample_Load

Private Sub AllowSortingChanged_Handler(ByVal sender As Object, ByVal e As EventArgs)
   mylabel.Text = "Sorting Status :" + myDataGridTableStyle1.AllowSorting.ToString()
End Sub 'AllowSortingChanged_Handler

Private Sub btnApplyStyles_Click(ByVal sender As Object, _
                                 ByVal e As EventArgs) Handles btnApplyStyles.Click
   If myDataGridTableStyle1.AllowSorting = True Then
      ' Remove sorting.
      myDataGridTableStyle1.AllowSorting = False
      btnApplyStyles.Text = "Allow Sorting"
   Else
      ' Allow sorting.
      myDataGridTableStyle1.AllowSorting = True
      btnApplyStyles.Text = "Remove Sorting"
   End If

   mylabel.Text = "Sorting Status :" + myDataGridTableStyle1.AllowSorting.ToString
   ' Add the DataGridTableStyle to DataGrid.
   myDataGrid.TableStyles.Add(myDataGridTableStyle1)
End Sub 'btnApplyStyles_Click

private void DataGridTableStyle_Sample_Load(object sender,
                                       EventArgs e)
{
   myDataGridTableStyle1 = new DataGridTableStyle();

   mylabel.Text = "Sorting Status :" + 
         myDataGridTableStyle1.AllowSorting.ToString();
   if(myDataGridTableStyle1.AllowSorting == true)
   {
      btnApplyStyles.Text = "Remove Sorting";
   }
   else
   {
      btnApplyStyles.Text = "Apply Sorting";
   }
   // Attach custom event handlers.
   myDataGridTableStyle1.AllowSortingChanged += 
               new System.EventHandler(AllowSortingChanged_Handler);
   myDataGridTableStyle1.MappingName = "Customers";
} 
private void AllowSortingChanged_Handler(object sender,EventArgs e)
{         
   mylabel.Text = "Sorting Status :" 
         + myDataGridTableStyle1.AllowSorting.ToString();
}     
private void btnApplyStyles_Click(object sender, EventArgs e)
{       

   if(myDataGridTableStyle1.AllowSorting == true)
   {            
      // Remove sorting.
      myDataGridTableStyle1.AllowSorting = false; 
      btnApplyStyles.Text = "Allow Sorting";
   }
   else
   {
      // Allow sorting.
      myDataGridTableStyle1.AllowSorting = true;
      btnApplyStyles.Text = "Remove Sorting";
   } 

   mylabel.Text = "Sorting Status :" + myDataGridTableStyle1.AllowSorting;
   // Add the DataGridTableStyle to DataGrid.
   myDataGrid.TableStyles.Add(myDataGridTableStyle1);
}

private:
   void DataGridTableStyle_Sample_Load( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      myDataGridTableStyle1 = gcnew DataGridTableStyle;
      mylabel->Text = String::Concat( "Sorting Status : ", myDataGridTableStyle1->AllowSorting );
      if ( myDataGridTableStyle1->AllowSorting == true )
      {
         btnApplyStyles->Text = "Remove Sorting";
      }
      else
      {
         btnApplyStyles->Text = "Apply Sorting";
      }

      myDataGridTableStyle1->AllowSortingChanged += gcnew System::EventHandler(
         this, &DataGridTableStyle_Sample::AllowSortingChanged_Handler );
      myDataGridTableStyle1->MappingName = "Customers";
   }

   void AllowSortingChanged_Handler( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      mylabel->Text = String::Concat( "Sorting Status : ", myDataGridTableStyle1->AllowSorting );
   }

   void btnApplyStyles_Click( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      if ( myDataGridTableStyle1->AllowSorting == true )
      {
         // Remove sorting.
         myDataGridTableStyle1->AllowSorting = false;
         btnApplyStyles->Text = "Allow Sorting";
      }
      else
      {
         // Allow sorting.
         myDataGridTableStyle1->AllowSorting = true;
         btnApplyStyles->Text = "Remove Sorting";
      }

      mylabel->Text = String::Concat( "Sorting Status : ", myDataGridTableStyle1->AllowSorting );

      // Add the DataGridTableStyle to DataGrid.
      myDataGrid->TableStyles->Add( myDataGridTableStyle1 );
   }

private void DataGridTableStyleSampleLoad(Object sender, EventArgs e)
{
    myDataGridTableStyle1 = new DataGridTableStyle();
    mylabel.set_Text("Sorting Status :" 
        + System.Convert.ToString(myDataGridTableStyle1.get_AllowSorting()));
    if (myDataGridTableStyle1.get_AllowSorting() == true) {
        btnApplyStyles.set_Text("Remove Sorting");
    }
    else {
        btnApplyStyles.set_Text("Apply Sorting");
    }

    // Attach custom event handlers.
    myDataGridTableStyle1.add_AllowSortingChanged(
        new System.EventHandler(AllowSortingChanged_Handler));
    myDataGridTableStyle1.set_MappingName("Customers");
} //DataGridTableStyleSampleLoad

private void AllowSortingChanged_Handler(Object sender, EventArgs e)
{
    mylabel.set_Text("Sorting Status :" 
        + System.Convert.ToString(myDataGridTableStyle1.get_AllowSorting()));
} //AllowSortingChanged_Handler

private void btnApplyStyles_Click(Object sender, EventArgs e)
{
    if (myDataGridTableStyle1.get_AllowSorting() == true) {
        // Remove sorting.
        myDataGridTableStyle1.set_AllowSorting(false);
        btnApplyStyles.set_Text("Allow Sorting");
    }
    else {
        // Allow sorting.
        myDataGridTableStyle1.set_AllowSorting(true);
        btnApplyStyles.set_Text("Remove Sorting");
    }
    mylabel.set_Text("Sorting Status :" 
        + ((myDataGridTableStyle1.get_AllowSorting()) ? "True" : "False"));
    // Add the DataGridTableStyle to DataGrid.
    myDataGrid.get_TableStyles().Add(myDataGridTableStyle1);
} //btnApplyStyles_Click

Plattformen

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

.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.

Versionsinformationen

.NET Framework

Unterstützt in: 2.0, 1.1, 1.0

Siehe auch

Referenz

DataGridTableStyle-Klasse
DataGridTableStyle-Member
System.Windows.Forms-Namespace