ToolBar.ToolBarButtonCollection.Clear 方法

public:
 virtual void Clear();

public void Clear();

abstract member Clear : unit -> unit
override this.Clear : unit -> unit

Public Sub Clear ()

實作

範例

以下程式碼範例顯示方法呼叫前後Count的 。ButtonsClear 此程式碼要求 ToolBar 已建立至少一個 ToolBarButton 的 。

public:
   void ClearMyToolBar()
   {
      int btns;
      // Get the count before the Clear method is called.
      btns = toolBar1->Buttons->Count;
      toolBar1->Buttons->Clear();
      MessageBox::Show( "Count Before Clear: " + btns.ToString() +
         "\nCount After Clear: " + toolBar1->Buttons->Count.ToString() );
   }

public void ClearMyToolBar()
 {
    int btns;
    // Get the count before the Clear method is called.
    btns = toolBar1.Buttons.Count;
    toolBar1.Buttons.Clear();
    MessageBox.Show("Count Before Clear: " + btns.ToString() +
                    "\nCount After Clear: " + toolBar1.Buttons.Count.ToString());
 }

Public Sub ClearMyToolBar()
    Dim btns As Integer
    ' Get the count before the Clear method is called.
    btns = toolBar1.Buttons.Count
    toolBar1.Buttons.Clear()
    MessageBox.Show("Count Before Clear: " + btns.ToString() & _
        Microsoft.VisualBasic.ControlChars.Cr & "Count After Clear: " & _
        toolBar1.Buttons.Count.ToString())
End Sub

備註

該 Clear 方法會遍歷集合，並移除所有分配給 ToolBar.ToolBarButtonCollection的工具列按鈕。

若要從集合中移除單一工具列按鈕，請使用 Remove or RemoveAt 方法。

若要新增物件 ToolBarButton 到集合中，請使用 Add， 或 AddRangeInsert 方法。

另請參閱

• Remove(ToolBarButton)
• ToolBarButton
• Add(ToolBarButton)
• Item[Int32]