DataGridTableStyle.HeaderBackColorChanged-Ereignis

Tritt ein, wenn sich der HeaderBackColor-Wert ändert.

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

Syntax

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

AddHandler instance.HeaderBackColorChanged, handler

public event EventHandler HeaderBackColorChanged

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

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

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

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

Beispiel

Private Sub Create_Table()
   ' Create DataSet.
   myDataSet = New DataSet("myDataSet")
   ' Create DataTable.
   Dim myCustomerTable As New DataTable("Customers")
   ' Create two columns, and add them to the table.
   Dim CustID As New DataColumn("CustID", GetType(Integer))
   Dim CustName As New DataColumn("CustName")
   myCustomerTable.Columns.Add(CustID)
   myCustomerTable.Columns.Add(CustName)
   ' Add table to DataSet.
   myDataSet.Tables.Add(myCustomerTable)
   dataGrid1.SetDataBinding(myDataSet, "Customers")
   myTableStyle = New DataGridTableStyle()
   myTableStyle.MappingName = "Customers"
   AddHandler myTableStyle.HeaderBackColorChanged, AddressOf HeaderBackColorChangedHandler
   AddHandler myTableStyle.HeaderForeColorChanged, AddressOf HeaderForeColorChangedHandler
End Sub 'Create_Table


' Change header background color.
Private Sub OnHeaderBackColor_Click(sender As Object, e As System.EventArgs) Handles button1.Click
   dataGrid1.TableStyles.Clear()
   Select Case comboBox1.SelectedItem.ToString()
      Case "Red"
         myTableStyle.HeaderBackColor = Color.Red
      Case "Yellow"
         myTableStyle.HeaderBackColor = Color.Yellow
      Case "Blue"
         myTableStyle.HeaderBackColor = Color.Blue
   End Select
   myTableStyle.AlternatingBackColor = Color.LightGray
   dataGrid1.TableStyles.Add(myTableStyle)
End Sub 'OnHeaderBackColor_Click

  Private Sub HeaderBackColorChangedHandler(ByVal sender As Object, ByVal e As EventArgs)
      MessageBox.Show("Changed Header Background color to : " + comboBox1.SelectedItem.ToString(), "Success", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
  End Sub 'HeaderBackColorChangedHandler

private void Create_Table()
{
   // Create DataSet.
   myDataSet = new DataSet("myDataSet");
   // Create DataTable.
   DataTable myCustomerTable = new DataTable("Customers");
   // Create two columns, and add them to the table.
   DataColumn CustID = new DataColumn("CustID", typeof(int));
   DataColumn CustName = new DataColumn("CustName");
   myCustomerTable.Columns.Add(CustID);
   myCustomerTable.Columns.Add(CustName);
   // Add table to DataSet.
   myDataSet.Tables.Add(myCustomerTable);
   dataGrid1.SetDataBinding(myDataSet,"Customers");
   myTableStyle = new DataGridTableStyle();
   myTableStyle.MappingName = "Customers";
   myTableStyle.HeaderBackColorChanged += 
      new System.EventHandler(HeaderBackColorChangedHandler); 
   myTableStyle.HeaderForeColorChanged +=
      new System.EventHandler(HeaderForeColorChangedHandler); 
}

// Change header background color.
private void OnHeaderBackColor_Click(object sender, System.EventArgs e)
{
   dataGrid1.TableStyles.Clear ();
   switch(comboBox1.SelectedItem.ToString())
   {
      case "Red":
         myTableStyle.HeaderBackColor = Color.Red;
         break;
      case "Yellow":
         myTableStyle.HeaderBackColor = Color.Yellow ;
         break;
      case "Blue":
         myTableStyle.HeaderBackColor = Color.Blue ;
         break;
   }
   myTableStyle.AlternatingBackColor = Color.LightGray;
   dataGrid1.TableStyles.Add(myTableStyle);
}

private void HeaderBackColorChangedHandler(object sender,EventArgs e)
{
   MessageBox.Show("Changed Header Background color to : " + 
   comboBox1.SelectedItem.ToString(),"Success", MessageBoxButtons.OK, 
   MessageBoxIcon.Exclamation);
}

private:
   void Create_Table()
   {
      // Create DataSet.
      myDataSet = gcnew DataSet( "myDataSet" );

      // Create DataTable.
      DataTable^ myCustomerTable = gcnew DataTable( "Customers" );

      // Create two columns, and add them to the table.
      DataColumn^ CustID = gcnew DataColumn( "CustID",int::typeid );
      DataColumn^ CustName = gcnew DataColumn( "CustName" );
      myCustomerTable->Columns->Add( CustID );
      myCustomerTable->Columns->Add( CustName );

      // Add table to DataSet.
      myDataSet->Tables->Add( myCustomerTable );
      dataGrid1->SetDataBinding( myDataSet, "Customers" );
      myTableStyle = gcnew DataGridTableStyle;
      myTableStyle->MappingName = "Customers";
      myTableStyle->HeaderBackColorChanged += gcnew System::EventHandler( this, &Form1::HeaderBackColorChangedHandler );
      myTableStyle->HeaderForeColorChanged += gcnew System::EventHandler( this, &Form1::HeaderForeColorChangedHandler );
   }

   // Change header background color.
   void OnHeaderBackColor_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
   {
      dataGrid1->TableStyles->Clear();
      String^ str = dynamic_cast<String^>(comboBox1->SelectedItem);
      if ( str->Equals( "Red" ) )
               myTableStyle->ForeColor = Color::Red;
      else
      if ( str->Equals( "Yellow" ) )
               myTableStyle->ForeColor = Color::Yellow;
      else
      if ( str->Equals( "Blue" ) )
               myTableStyle->ForeColor = Color::Blue;

      myTableStyle->AlternatingBackColor = Color::LightGray;
      dataGrid1->TableStyles->Add( myTableStyle );
   }

   void HeaderBackColorChangedHandler( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      MessageBox::Show( String::Concat( "Changed Header Background color to : ", comboBox1->SelectedItem ), "Success", MessageBoxButtons::OK, MessageBoxIcon::Exclamation );
   }

private void Create_Table()
{
    // Create DataSet.
    myDataSet = new DataSet("myDataSet");

    // Create DataTable.
    DataTable myCustomerTable = new DataTable("Customers");

    // Create two columns, and add them to the table.
    DataColumn custID = new DataColumn("CustID", int.class.ToType());
    DataColumn custName = new DataColumn("CustName");

    myCustomerTable.get_Columns().Add(custID);
    myCustomerTable.get_Columns().Add(custName);

    // Add table to DataSet.
    myDataSet.get_Tables().Add(myCustomerTable);
    dataGrid1.SetDataBinding(myDataSet, "Customers");
    myTableStyle = new DataGridTableStyle();
    myTableStyle.set_MappingName("Customers");
    myTableStyle.add_HeaderBackColorChanged(
        new System.EventHandler(HeaderBackColorChangedHandler));
    myTableStyle.add_HeaderForeColorChanged(
        new System.EventHandler(HeaderForeColorChangedHandler));
} //Create_Table

// Change header background color.
private void OnHeaderBackColor_Click(Object sender, System.EventArgs e)
{
    dataGrid1.get_TableStyles().Clear();
    if (comboBox1.get_SelectedItem().ToString().Equals("Red")) {
        myTableStyle.set_HeaderBackColor(Color.get_Red());
    }
    else if (comboBox1.get_SelectedItem().ToString().Equals("Yellow")) {
        myTableStyle.set_HeaderBackColor(Color.get_Yellow());
    }
    else if (comboBox1.get_SelectedItem().ToString().Equals("Blue")) {
        myTableStyle.set_HeaderBackColor(Color.get_Blue());
    }
    myTableStyle.set_AlternatingBackColor(Color.get_LightGray());
    dataGrid1.get_TableStyles().Add(myTableStyle);
} //OnHeaderBackColor_Click

void HeaderBackColorChangedHandler(Object sender, EventArgs e)
{
    MessageBox.Show("Changed Header Background color to : " 
        + comboBox1.get_SelectedItem().ToString(), "Success", 
        MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
} //HeaderBackColorChangedHandler

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