DataGrid.CurrentCellChanged 事件

在 CurrentCell 属性更改后发生。

**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 CurrentCellChanged As EventHandler
用法
Dim instance As DataGrid
Dim handler As EventHandler

AddHandler instance.CurrentCellChanged, handler

public event EventHandler CurrentCellChanged

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

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

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

JScript 支持使用事件，但不支持进行新的声明。

备注

若要确定当前单元格，请使用 CurrentCell 属性。

有关处理事件的更多信息，请参见 使用事件。

示例

' Create an instance of the 'CurrentCellChanged' EventHandler.
Private Sub CallCurrentCellChanged()
   AddHandler myDataGrid.CurrentCellChanged, AddressOf Grid_CurCellChange
End Sub 'CallCurrentCellChanged


' Raise the event when focus on DataGrid cell changes.
 Private Sub Grid_CurCellChange(ByVal sender As Object, ByVal e As EventArgs)
     ' String variable used to show message.
     Dim myString As String = "CurrentCellChanged event raised, cell focus is at "
     ' Get the co-ordinates of the focussed cell.
     Dim myPoint As String = myDataGrid.CurrentCell.ColumnNumber + "," + myDataGrid.CurrentCell.RowNumber
     ' Create the alert message.
     myString = myString + "(" + myPoint + ")"
     ' Show Co-ordinates when CurrentCellChanged event is raised.
     MessageBox.Show(myString, "Current cell co-ordinates")
 End Sub 'Grid_CurCellChange

// Create an instance of the 'CurrentCellChanged' EventHandler.
private void CallCurrentCellChanged()
{
   myDataGrid.CurrentCellChanged += new EventHandler(Grid_CurCellChange);
}

// Raise the event when focus on DataGrid cell changes.
private void Grid_CurCellChange(object sender, EventArgs e)
{
   // String variable used to show message.
   string myString = "CurrentCellChanged event raised, cell focus is at ";
   // Get the co-ordinates of the focussed cell.
   string myPoint  = myDataGrid.CurrentCell.ColumnNumber + "," +
                  myDataGrid.CurrentCell.RowNumber;
   // Create the alert message.
   myString = myString + "(" + myPoint + ")";
   // Show Co-ordinates when CurrentCellChanged event is raised.
   MessageBox.Show(myString, "Current cell co-ordinates");
}

   // Create an instance of the 'CurrentCellChanged' EventHandler.
private:
   void CallCurrentCellChanged()
   {
      myDataGrid->CurrentCellChanged += gcnew EventHandler( this, &MyDataGrid::Grid_CurCellChange );
   }

   // Raise the event when focus on DataGrid cell changes.
   void Grid_CurCellChange( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      // String variable used to show message.
      String^ myString = "CurrentCellChanged event raised, cell focus is at ";

      // Get the co-ordinates of the focussed cell.
      String^ myPoint = String::Concat( myDataGrid->CurrentCell.ColumnNumber, ", ", myDataGrid->CurrentCell.RowNumber );

      // Create the alert message.
      myString = String::Concat( myString, "(", myPoint, ")" );

      // Show Co-ordinates when CurrentCellChanged event is raised.
      MessageBox::Show( myString, "Current cell co-ordinates" );
   }

// Create an instance of the 'CurrentCellChanged' EventHandler.
private void CallCurrentCellChanged()
{
    myDataGrid.add_CurrentCellChanged(new EventHandler(GridCurCellChange));
} //CallCurrentCellChanged

// Raise the event when focus on DataGrid cell changes.
protected void GridCurCellChange(Object sender, EventArgs e)
{
    // String variable used to show message.
    String myString = "CurrentCellChanged event raised, cell focus is at ";

    // Get the co-ordinates of the focussed cell.
    String myPoint = myDataGrid.get_CurrentCell().get_ColumnNumber() 
        + "," + myDataGrid.get_CurrentCell().get_RowNumber();

    // Create the alert message.
    myString = myString + "(" + myPoint + ")";

    // Show Co-ordinates when CurrentCellChanged event is raised.
    MessageBox.Show(myString, "Current cell co-ordinates");
} //GridCurCellChange

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

.NET Compact Framework

受以下版本支持：2.0、1.0

请参见

参考

DataGrid 类
DataGrid 成员
System.Windows.Forms 命名空间