Label.UseMnemonic 属性

定义

命名空间:

System.Windows.Forms

程序集:

System.Windows.Forms.dll

获取或设置一个值，该值指示控件是否将控件 Text 的 属性中的和号字符 (&) 解释为访问键前缀字符。

public:
 property bool UseMnemonic { bool get(); void set(bool value); };

public bool UseMnemonic { get; set; }

member this.UseMnemonic : bool with get, set

Public Property UseMnemonic As Boolean

属性值

Boolean

true 如果标签不显示与号字符，并在其显示的文本中为与号后面的字符下划线，并将带下划线的字符视为访问键，则为 ;否则， false 如果控件的文本中显示与号字符，则为 。 默认值为 true。

示例

下面的代码示例演示如何创建一个 Label 控件，该控件具有 ImageList 三维边框和使用 和 ImageIndex 属性显示的图像。 控件还具有指定助记符的描述文字。 示例代码使用 PreferredHeight 和 PreferredWidth 属性在显示控件的窗体上正确调整控件的大小 Label 。 此示例要求 ImageList 已创建名为 imageList1 的 ，并且已加载两个映像。 该示例还要求代码位于将 命名空间添加到其代码的窗体 System.Drawing 中。

public:
   void CreateMyLabel()
   {
      // Create an instance of a Label.
      Label^ label1 = gcnew Label;
      
      // Set the border to a three-dimensional border.
      label1->BorderStyle = System::Windows::Forms::BorderStyle::Fixed3D;
      // Set the ImageList to use for displaying an image.
      label1->ImageList = imageList1;
      // Use the second image in imageList1.
      label1->ImageIndex = 1;
      // Align the image to the top left corner.
      label1->ImageAlign = ContentAlignment::TopLeft;
      
      // Specify that the text can display mnemonic characters.
      label1->UseMnemonic = true;
      // Set the text of the control and specify a mnemonic character.
      label1->Text = "First &Name:";
      
      /* Set the size of the control based on the PreferredHeight and PreferredWidth values. */
      label1->Size = System::Drawing::Size( label1->PreferredWidth, label1->PreferredHeight );
      
      //...Code to add the control to the form...
   }

public void CreateMyLabel()
{
   // Create an instance of a Label.
   Label label1 = new Label();

   // Set the border to a three-dimensional border.
   label1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
   // Set the ImageList to use for displaying an image.
   label1.ImageList = imageList1;
   // Use the second image in imageList1.
   label1.ImageIndex = 1;
   // Align the image to the top left corner.
   label1.ImageAlign = ContentAlignment.TopLeft;

   // Specify that the text can display mnemonic characters.
   label1.UseMnemonic = true;
   // Set the text of the control and specify a mnemonic character.
   label1.Text = "First &Name:";
   
   /* Set the size of the control based on the PreferredHeight and PreferredWidth values. */
   label1.Size = new Size (label1.PreferredWidth, label1.PreferredHeight);

   //...Code to add the control to the form...
}

Public Sub CreateMyLabel()
    ' Create an instance of a Label.
    Dim label1 As New Label()
       
    ' Set the border to a three-dimensional border.
    label1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D
    ' Set the ImageList to use for displaying an image.
    label1.ImageList = imageList1
    ' Use the second image in imageList1.
    label1.ImageIndex = 1
    ' Align the image to the top left corner.
    label1.ImageAlign = ContentAlignment.TopLeft
     
    ' Specify that the text can display mnemonic characters.
    label1.UseMnemonic = True
    ' Set the text of the control and specify a mnemonic character.
    label1.Text = "First &Name:"
       
    ' Set the size of the control based on the PreferredHeight and PreferredWidth values. 
    label1.Size = New Size(label1.PreferredWidth, label1.PreferredHeight)

    '...Code to add the control to the form...
End Sub

注解

如果 属性UseMnemonic设置为 true ，并且助记符 (前面带有与号) 的字符在 的 Label属性中Text定义，按 Alt+ 键键字符会将焦点设置为 Tab 键顺序中紧跟Label的控件。 可以使用此属性为窗体上的控件提供正确的键盘导航。

另请参阅

• Text