StatusBar.PanelClick 事件

当单击 StatusBar 控件上的 StatusBarPanel 对象时发生。

**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 PanelClick As StatusBarPanelClickEventHandler
用法
Dim instance As StatusBar
Dim handler As StatusBarPanelClickEventHandler

AddHandler instance.PanelClick, handler

public event StatusBarPanelClickEventHandler PanelClick

public:
event StatusBarPanelClickEventHandler^ PanelClick {
    void add (StatusBarPanelClickEventHandler^ value);
    void remove (StatusBarPanelClickEventHandler^ value);
}

/** @event */
public void add_PanelClick (StatusBarPanelClickEventHandler value)

/** @event */
public void remove_PanelClick (StatusBarPanelClickEventHandler value)

JScript 支持使用事件，但不支持进行新的声明。

备注

当单击 StatusBar 控件内的面板时，可以使用此事件执行各种任务。通过 StatusBarPanelClickEventArgs（作为参数传递给事件处理程序）提供给事件的数据使您可以确定用户为了在选定的面板上执行任务所单击的 StatusBarPanel。

有关处理事件的更多信息，请参见 使用事件。

示例

下面的代码示例演示如何使用 SizingGrip、StatusBarPanel.Alignment、StatusBarPanel.Width、StatusBarPanel.AutoSize 和 StatusBarPanel.BorderStyle 成员，以及如何处理 PanelClick 事件。

要运行该示例，请将以下代码粘贴到一个窗体中。在该窗体的构造函数或 Load 方法中调用 InitializeStatusBarPanels 方法。

Friend WithEvents statusBar1 As System.Windows.Forms.StatusBar

Private Sub InitializeStatusBarPanels()

    ' Create a StatusBar control.
    statusBar1 = New StatusBar

    ' Dock the status bar at the top of the form. 
    statusBar1.Dock = DockStyle.Top

    ' Set the SizingGrip property to false so the user cannot 
    ' resize the status bar.
    statusBar1.SizingGrip = False

    ' Create two StatusBarPanel objects to display in statusBar1.
    Dim panel1 As New StatusBarPanel
    Dim panel2 As New StatusBarPanel

    ' Set the width of panel2 explicitly and set
    ' panel1 to fill in the remaining space.
    panel2.Width = 80
    panel1.AutoSize = StatusBarPanelAutoSize.Spring

    ' Set the text alignment within each panel.
    panel1.Alignment = HorizontalAlignment.Left
    panel2.Alignment = HorizontalAlignment.Right

    ' Display the first panel without a border and the second
    ' with a raised border.
    panel1.BorderStyle = StatusBarPanelBorderStyle.None
    panel2.BorderStyle = StatusBarPanelBorderStyle.Raised

    ' Set the text of the panels. The panel1 object is reserved
    ' for line numbers, while panel2 is set to the current time.
    panel1.Text = "Reserved for important information."
    panel2.Text = System.DateTime.Now.ToShortTimeString

    ' Set a tooltip for panel2
    panel2.ToolTipText = "Click time to display seconds"

    ' Display panels in statusBar1 and add them to the
    ' status bar's StatusBarPanelCollection.
    statusBar1.ShowPanels = True
    statusBar1.Panels.Add(panel1)
    statusBar1.Panels.Add(panel2)

    ' Add the StatusBar to the form.
    Me.Controls.Add(statusBar1)
End Sub


' If the user clicks the status bar, check the text of the 
' StatusBarPanel.  If the text equals a short time string,
' change it to long time display.
Private Sub statusBar1_PanelClick(ByVal sender As Object, _
    ByVal e As StatusBarPanelClickEventArgs) _
        Handles statusBar1.PanelClick
    If (e.StatusBarPanel.Text = _
        System.DateTime.Now.ToShortTimeString) Then
        e.StatusBarPanel.Text = System.DateTime.Now.ToLongTimeString
    End If
End Sub

internal System.Windows.Forms.StatusBar statusBar1;

private void InitializeStatusBarPanels()
{

    // Create a StatusBar control.
    statusBar1 = new StatusBar();

    // Dock the status bar at the top of the form. 
    statusBar1.Dock = DockStyle.Top;

    // Set the SizingGrip property to false so the user cannot 
    // resize the status bar.
    statusBar1.SizingGrip = false;

    // Associate the event-handling method with the 
    // PanelClick event.
    statusBar1.PanelClick += 
        new StatusBarPanelClickEventHandler(statusBar1_PanelClick);

    // Create two StatusBarPanel objects to display in statusBar1.
    StatusBarPanel panel1 = new StatusBarPanel();
    StatusBarPanel panel2 = new StatusBarPanel();

    // Set the width of panel2 explicitly and set
    // panel1 to fill in the remaining space.
    panel2.Width = 80;
    panel1.AutoSize = StatusBarPanelAutoSize.Spring;

    // Set the text alignment within each panel.
    panel1.Alignment = HorizontalAlignment.Left;
    panel2.Alignment = HorizontalAlignment.Right;

    // Display the first panel without a border and the second
    // with a raised border.
    panel1.BorderStyle = StatusBarPanelBorderStyle.None;
    panel2.BorderStyle = StatusBarPanelBorderStyle.Raised;

    // Set the text of the panels. The panel1 object is reserved
    // for line numbers, while panel2 is set to the current time.
    panel1.Text = "Reserved for important information.";
    panel2.Text = System.DateTime.Now.ToShortTimeString();

    // Set a tooltip for panel2
    panel2.ToolTipText = "Click time to display seconds";

    // Display panels in statusBar1 and add them to the
    // status bar's StatusBarPanelCollection.
    statusBar1.ShowPanels = true;
    statusBar1.Panels.Add(panel1);
    statusBar1.Panels.Add(panel2);

    // Add the StatusBar to the form.
    this.Controls.Add(statusBar1);
}


// If the user clicks the status bar, check the text of the 
// StatusBarPanel.  If the text equals a short time string,
// change it to long time display.
private void statusBar1_PanelClick(object sender, 
    StatusBarPanelClickEventArgs e)
{
    if (e.StatusBarPanel.Text == 
        System.DateTime.Now.ToShortTimeString())
    {
        e.StatusBarPanel.Text = 
            System.DateTime.Now.ToLongTimeString();
    }
}

internal:
   System::Windows::Forms::StatusBar^ statusBar1;

private:
   void InitializeStatusBarPanels()
   {
      
      // Create a StatusBar control.
      statusBar1 = gcnew StatusBar;
      
      // Dock the status bar at the top of the form. 
      statusBar1->Dock = DockStyle::Top;
      
      // Set the SizingGrip property to false so the user cannot 
      // resize the status bar.
      statusBar1->SizingGrip = false;
      
      // Associate the event-handling method with the 
      // PanelClick event.
      statusBar1->PanelClick += gcnew StatusBarPanelClickEventHandler( this, &Form1::statusBar1_PanelClick );
      
      // Create two StatusBarPanel objects to display in statusBar1.
      StatusBarPanel^ panel1 = gcnew StatusBarPanel;
      StatusBarPanel^ panel2 = gcnew StatusBarPanel;
      
      // Set the width of panel2 explicitly and set
      // panel1 to fill in the remaining space.
      panel2->Width = 80;
      panel1->AutoSize = StatusBarPanelAutoSize::Spring;
      
      // Set the text alignment within each panel.
      panel1->Alignment = HorizontalAlignment::Left;
      panel2->Alignment = HorizontalAlignment::Right;
      
      // Display the first panel without a border and the second
      // with a raised border.
      panel1->BorderStyle = StatusBarPanelBorderStyle::None;
      panel2->BorderStyle = StatusBarPanelBorderStyle::Raised;
      
      // Set the text of the panels. The panel1 object is reserved
      // for line numbers, while panel2 is set to the current time.
      panel1->Text = "Reserved for important information.";
      panel2->Text = System::DateTime::Now.ToShortTimeString();
      
      // Set a tooltip for panel2
      panel2->ToolTipText = "Click time to display seconds";
      
      // Display panels in statusBar1 and add them to the
      // status bar's StatusBarPanelCollection.
      statusBar1->ShowPanels = true;
      statusBar1->Panels->Add( panel1 );
      statusBar1->Panels->Add( panel2 );
      
      // Add the StatusBar to the form.
      this->Controls->Add( statusBar1 );
   }

   // If the user clicks the status bar, check the text of the 
   // StatusBarPanel.  If the text equals a short time string,
   // change it to long time display.
   void statusBar1_PanelClick( Object^ /*sender*/, StatusBarPanelClickEventArgs^ e )
   {
      if ( e->StatusBarPanel->Text == System::DateTime::Now.ToShortTimeString() )
      {
         e->StatusBarPanel->Text = System::DateTime::Now.ToLongTimeString();
      }
   }

System.Windows.Forms.StatusBar statusBar1;

private void InitializeStatusBarPanels()
{
    // Create a StatusBar control.
    statusBar1 = new StatusBar();
    // Dock the status bar at the top of the form. 
    statusBar1.set_Dock(DockStyle.Top);
    // Set the SizingGrip property to false so the user cannot 
    // resize the status bar.
    statusBar1.set_SizingGrip(false);
    // Associate the event-handling method with the 
    // PanelClick event.
    statusBar1.add_PanelClick(new StatusBarPanelClickEventHandler(
        statusBar1_PanelClick));
    // Create two StatusBarPanel objects to display in statusBar1.
    StatusBarPanel panel1 = new StatusBarPanel();
    StatusBarPanel panel2 = new StatusBarPanel();
    // Set the width of panel2 explicitly and set
    // panel1 to fill in the remaining space.
    panel2.set_Width(80);
    panel1.set_AutoSize(StatusBarPanelAutoSize.Spring);
    // Set the text alignment within each panel.
    panel1.set_Alignment(HorizontalAlignment.Left);
    panel2.set_Alignment(HorizontalAlignment.Right);
    // Display the first panel without a border and the second
    // with a raised border.
    panel1.set_BorderStyle(StatusBarPanelBorderStyle.None);
    panel2.set_BorderStyle(StatusBarPanelBorderStyle.Raised);
    // Set the text of the panels. The panel1 object is reserved
    // for line numbers, while panel2 is set to the current time.
    panel1.set_Text("Reserved for important information.");
    panel2.set_Text(System.DateTime.get_Now().ToShortTimeString());
    // Set a tooltip for panel2
    panel2.set_ToolTipText("Click time to display seconds");
    // Display panels in statusBar1 and add them to the
    // status bar's StatusBarPanelCollection.
    statusBar1.set_ShowPanels(true);
    statusBar1.get_Panels().Add(panel1);
    statusBar1.get_Panels().Add(panel2);
    // Add the StatusBar to the form.
    this.get_Controls().Add(statusBar1);
} //InitializeStatusBarPanels

// If the user clicks the status bar, check the text of the 
// StatusBarPanel. If the text equals a short time string,
// change it to long time display.
private void statusBar1_PanelClick(Object sender,
    StatusBarPanelClickEventArgs e)
{
    if (e.get_StatusBarPanel().get_Text().Equals(
        System.DateTime.get_Now().ToShortTimeString())) {
        e.get_StatusBarPanel().set_Text(System.DateTime.get_Now().
            ToLongTimeString());
    }
} //statusBar1_PanelClick

平台

Windows 98、Windows 2000 SP4、Windows CE、Windows Millennium Edition、Windows Mobile for Pocket PC、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

StatusBar 类
StatusBar 成员
System.Windows.Forms 命名空间
OnPanelClick
StatusBarPanelClickEventArgs
StatusBarPanelClickEventHandler