DataGridTableStyle.RowHeadersVisibleChanged 事件

在 RowHeadersVisible 值更改时发生。

**命名空间:**System.Windows.Forms
**程序集:**System.Windows.Forms（在 system.windows.forms.dll 中）

语法

声明
Public Event RowHeadersVisibleChanged As EventHandler
用法
Dim instance As DataGridTableStyle
Dim handler As EventHandler

AddHandler instance.RowHeadersVisibleChanged, handler

public event EventHandler RowHeadersVisibleChanged

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

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

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

JScript 支持使用事件，但不支持进行新的声明。

备注

有关处理事件的更多信息，请参见 使用事件。

示例

' Instantiate the EventHandler.
Public Sub AttachRowHeaderVisibleChanged()
   AddHandler myDataGridTableStyle.RowHeadersVisibleChanged, AddressOf MyDelegateRowHeadersVisibleChanged
End Sub 'AttachRowHeaderVisibleChanged


' raise the event when RowHeadersVisible property is changed.
 Private Sub MyDelegateRowHeadersVisibleChanged(ByVal sender As Object, ByVal e As EventArgs)
     Dim myString As String = "'RowHeadersVisibleChanged' event raised, Row Headers are"
     If myDataGridTableStyle.RowHeadersVisible Then
         myString += " visible"
     Else
         myString += " not visible"
     End If
     MessageBox.Show(myString, "RowHeader information")
 End Sub 'MyDelegateRowHeadersVisibleChanged


' raise the event when a button is clicked.
Private Sub myButton_Click(sender As Object, e As System.EventArgs)
   If myDataGridTableStyle.RowHeadersVisible Then
      myDataGridTableStyle.RowHeadersVisible = False
   Else
      myDataGridTableStyle.RowHeadersVisible = True
   End If
End Sub 'myButton_Click 

// Instantiate the EventHandler.
public void AttachRowHeaderVisibleChanged()
{
   myDataGridTableStyle.RowHeadersVisibleChanged += new EventHandler (MyDelegateRowHeadersVisibleChanged);
}

// raise the event when RowHeadersVisible property is changed.
private void MyDelegateRowHeadersVisibleChanged(object sender, EventArgs e)
{
   string myString = "'RowHeadersVisibleChanged' event raised, Row Headers are";
   if (myDataGridTableStyle.RowHeadersVisible)
      myString += " visible";
   else
      myString += " not visible";

   MessageBox.Show(myString, "RowHeader information");
}

// raise the event when a button is clicked.
private void myButton_Click(object sender, System.EventArgs e)
{
   if (myDataGridTableStyle.RowHeadersVisible)
      myDataGridTableStyle.RowHeadersVisible = false;
   else
      myDataGridTableStyle.RowHeadersVisible = true;
}

   // Instantiate the EventHandler.
public:
   void AttachRowHeaderVisibleChanged()
   {
      myDataGridTableStyle->RowHeadersVisibleChanged += gcnew EventHandler( this, &MyDataGridTableStyle_RowHeadersVisibleChanged::MyDelegateRowHeadersVisibleChanged );
   }

   // raise the event when RowHeadersVisible property is changed.
private:
   void MyDelegateRowHeadersVisibleChanged( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      String^ myString = "'RowHeadersVisibleChanged' event raised, Row Headers are";
      if ( myDataGridTableStyle->RowHeadersVisible )
            myString = String::Concat( myString, " visible" );
      else
            myString = String::Concat( myString, " not visible" );

      MessageBox::Show( myString, "RowHeader information" );
   }

   // raise the event when a button is clicked.
   void myButton_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
   {
      if ( myDataGridTableStyle->RowHeadersVisible )
            myDataGridTableStyle->RowHeadersVisible = false;
      else
            myDataGridTableStyle->RowHeadersVisible = true;
   }

// Instantiate the EventHandler.
public void AttachRowHeaderVisibleChanged()
{
    myDataGridTableStyle.add_RowHeadersVisibleChanged(
        new EventHandler(MyDelegateRowHeadersVisibleChanged));
} //AttachRowHeaderVisibleChanged

// raise the event when RowHeadersVisible property is changed.
public void MyDelegateRowHeadersVisibleChanged(Object sender, EventArgs e)
{
    String myString = "'RowHeadersVisibleChanged' event raised, Row " 
        + "Headers are";

    if (myDataGridTableStyle.get_RowHeadersVisible()) {
        myString += " visible";
    }
    else {
        myString += " not visible";
    }
    MessageBox.Show(myString, "RowHeader information");
} //MyDelegateRowHeadersVisibleChanged

// raise the event when a button is clicked.
private void myButton_Click(Object sender, System.EventArgs e)
{
    if (myDataGridTableStyle.get_RowHeadersVisible()) {
        myDataGridTableStyle.set_RowHeadersVisible(false);
    }
    else {
        myDataGridTableStyle.set_RowHeadersVisible(true);
    }
} //myButton_Click 

// Instantiate the EventHandler.
public void AttachRowHeaderVisibleChanged()
{
    myDataGridTableStyle.add_RowHeadersVisibleChanged(new EventHandler(
        MyDelegateRowHeadersVisibleChanged));
} //AttachRowHeaderVisibleChanged

// raise the event when RowHeadersVisible property is changed.
public void MyDelegateRowHeadersVisibleChanged(Object sender, EventArgs e)
{
    String myString = 
        "'RowHeadersVisibleChanged' event raised, Row Headers are";

    if (myDataGridTableStyle.get_RowHeadersVisible()) {
        myString += " visible";
    }
    else {
        myString += " not visible";
    }
    MessageBox.Show(myString, "RowHeader information");
} //MyDelegateRowHeadersVisibleChanged

// raise the event when a button is clicked.
private void myButton_Click(Object sender, System.EventArgs e)
{
    if (myDataGridTableStyle.get_RowHeadersVisible()) {
        myDataGridTableStyle.set_RowHeadersVisible(false);
    }
    else {
        myDataGridTableStyle.set_RowHeadersVisible(true);
    }
} //myButton_Click 

平台

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

.NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表，请参见系统要求。

版本信息

.NET Framework

受以下版本支持：2.0、1.1、1.0

请参见

参考

DataGridTableStyle 类
DataGridTableStyle 成员
System.Windows.Forms 命名空间
DataGridTableStyle.RowHeaderWidth 属性
DataGridTableStyle.RowHeadersVisible 属性