DataGridTableStyle.HeaderForeColorChanged-Ereignis

Tritt ein, wenn sich der HeaderForeColor-Wert ändert.

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

Syntax

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

AddHandler instance.HeaderForeColorChanged, handler

public event EventHandler HeaderForeColorChanged

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

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

/** @event */
public void remove_HeaderForeColorChanged (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

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

' Change header forecolor.
Private Sub OnHeaderForeColor_Click(sender As Object, e As System.EventArgs) Handles button2.Click
   dataGrid1.TableStyles.Clear()
   Select Case comboBox2.SelectedItem.ToString()
      Case "Green"
         myTableStyle.HeaderForeColor = Color.Green
      Case "White"
         myTableStyle.HeaderForeColor = Color.White
      Case "Violet"
         myTableStyle.HeaderForeColor = Color.Violet
   End Select
   myTableStyle.AlternatingBackColor = Color.LightGray
   dataGrid1.TableStyles.Add(myTableStyle)
End Sub 'OnHeaderForeColor_Click

  Private Sub HeaderForeColorChangedHandler(ByVal sender As Object, ByVal e As EventArgs)
      MessageBox.Show("Changed Header Fore color to : " + comboBox2.SelectedItem.ToString(), "Success", MessageBoxButtons.OK, MessageBoxIcon.Exclamation)
  End Sub 'HeaderForeColorChangedHandler

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);
}

// Change header forecolor.
private void OnHeaderForeColor_Click(object sender, System.EventArgs e)
{
   dataGrid1.TableStyles.Clear();
   switch(comboBox2.SelectedItem.ToString())
   {
      case "Green":
         myTableStyle.HeaderForeColor = Color.Green;
         break;
      case "White":
         myTableStyle.HeaderForeColor = Color.White;
         break;
      case "Violet":
         myTableStyle.HeaderForeColor = Color.Violet;
         break;
   }
   myTableStyle.AlternatingBackColor = Color.LightGray;
   dataGrid1.TableStyles.Add(myTableStyle);
}

private void HeaderForeColorChangedHandler(object sender,EventArgs e)
{
   MessageBox.Show("Changed Header Fore color to : " + 
   comboBox2.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 );
   }

   // Change header forecolor.
   void OnHeaderForeColor_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
   {
      dataGrid1->TableStyles->Clear();
      String^ str = dynamic_cast<String^>(comboBox1->SelectedItem);
      if ( str->Equals( "Green" ) )
               myTableStyle->ForeColor = Color::Green;
      else
      if ( str->Equals( "White" ) )
               myTableStyle->ForeColor = Color::White;
      else
      if ( str->Equals( "Violet" ) )
               myTableStyle->ForeColor = Color::Violet;

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

   void HeaderForeColorChangedHandler( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      MessageBox::Show( String::Concat( "Changed Header Fore color to : ", comboBox2->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

// Change header forecolor.
private void OnHeaderForeColor_Click(Object sender, System.EventArgs e)
{
    dataGrid1.get_TableStyles().Clear();
    if (comboBox2.get_SelectedItem().ToString().Equals("Green")) {
        myTableStyle.set_HeaderForeColor(Color.get_Green());
    }
    else if (comboBox2.get_SelectedItem().ToString().Equals("White")) {
        myTableStyle.set_HeaderForeColor(Color.get_White());
    }
    else if (comboBox2.get_SelectedItem().ToString().Equals("Violet")) {
        myTableStyle.set_HeaderForeColor(Color.get_Violet());
    }
    myTableStyle.set_AlternatingBackColor(Color.get_LightGray());
    dataGrid1.get_TableStyles().Add(myTableStyle);
} //OnHeaderForeColor_Click

void HeaderForeColorChangedHandler(Object sender, EventArgs e)
{
    MessageBox.Show("Changed Header Fore color to : " 
        + comboBox2.get_SelectedItem().ToString(), "Success", 
        MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
} //HeaderForeColorChangedHandler

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
DataGridTableStyle.HeaderForeColor-Eigenschaft
DataGridTableStyle.HeaderBackColor-Eigenschaft
ShouldSerializeHeaderForeColor
ResetHeaderForeColor
DataGridTableStyle.ColumnHeadersVisible-Eigenschaft
DataGridTableStyle.HeaderFont-Eigenschaft