Control.TabIndex 属性

定义

获取或设置控件在其容器内的 Tab 键顺序。Gets or sets the tab order of the control within its container.

public:
 property int TabIndex { int get(); void set(int value); };
public int TabIndex { get; set; }
member this.TabIndex : int with get, set
Public Property TabIndex As Integer

属性值

控件容器中控件集合内的控件的索引值。The index value of the control within the set of controls within its container. 容器中包括的控件以 Tab 键顺序排列。The controls in the container are included in the tab order.

示例

下面的代码示例将 Button 添加到窗体中,并设置其一些公共属性。The following code example adds a Button to a form and sets some of its common properties. 该示例将按钮锚定在窗体右下角,以便在调整窗体大小时保持其相对位置。The example anchors the button to the bottom-right corner of the form so it keeps its relative position as the form is resized. 接下来,它将 BackgroundImage 并将按钮的大小调整为与 Image 相同的大小。Next it sets the BackgroundImage and resizes the button to the same size as the Image. 然后,该示例将 TabStop 设置为 true 并设置 TabIndex 属性。The example then sets the TabStop to true and sets the TabIndex property. 最后,添加一个事件处理程序来处理按钮的 Click 事件。Lastly, it adds an event handler to handle the Click event of the button. 此示例要求你有一个名为 imageList1ImageListThis example requires that you have an ImageList named imageList1.

   // Add a button to a form and set some of its common properties.
private:
   void AddMyButton()
   {
      // Create a button and add it to the form.
      Button^ button1 = gcnew Button;

      // Anchor the button to the bottom right corner of the form
      button1->Anchor = static_cast<AnchorStyles>(AnchorStyles::Bottom | AnchorStyles::Right);

      // Assign a background image.
      button1->BackgroundImage = imageList1->Images[ 0 ];

      // Specify the layout style of the background image. Tile is the default.
      button1->BackgroundImageLayout = ImageLayout::Center;

      // Make the button the same size as the image.
      button1->Size = button1->BackgroundImage->Size;

      // Set the button's TabIndex and TabStop properties.
      button1->TabIndex = 1;
      button1->TabStop = true;

      // Add a delegate to handle the Click event.
      button1->Click += gcnew System::EventHandler( this, &Form1::button1_Click );

      // Add the button to the form.
      this->Controls->Add( button1 );
   }
// Add a button to a form and set some of its common properties.
private void AddMyButton()
{
   // Create a button and add it to the form.
   Button button1 = new Button();

   // Anchor the button to the bottom right corner of the form
   button1.Anchor = (AnchorStyles.Bottom | AnchorStyles.Right);

   // Assign a background image.
   button1.BackgroundImage = imageList1.Images[0];

   // Specify the layout style of the background image. Tile is the default.
   button1.BackgroundImageLayout = ImageLayout.Center;
   
   // Make the button the same size as the image.
   button1.Size = button1.BackgroundImage.Size;

   // Set the button's TabIndex and TabStop properties.
   button1.TabIndex = 1;
   button1.TabStop = true;

   // Add a delegate to handle the Click event.
   button1.Click += new System.EventHandler(this.button1_Click);

   // Add the button to the form.
   this.Controls.Add(button1);
}
' Add a button to a form and set some of its common properties.
Private Sub AddMyButton()
   ' Create a button and add it to the form.
   Dim button1 As New Button()
   
   ' Anchor the button to the bottom right corner of the form
   button1.Anchor = AnchorStyles.Bottom Or AnchorStyles.Right
   
   ' Assign a background image.
   button1.BackgroundImage = imageList1.Images(0)

   ' Specify the layout style of the background image. Tile is the default.
   button1.BackgroundImageLayout = ImageLayout.Center
   
   ' Make the button the same size as the image.
   button1.Size = button1.BackgroundImage.Size
   
   ' Set the button's TabIndex and TabStop properties.
   button1.TabIndex = 1
   button1.TabStop = True

   ' Add a delegate to handle the Click event.
   AddHandler button1.Click, AddressOf Me.button1_Click
   
   ' Add the button to the form.
   Me.Controls.Add(button1)
End Sub

注解

选项卡索引可以包含任何大于或等于零的有效整数,并按 tab 键顺序提前更小的数字。A tab index can consist of any valid integer greater than or equal to zero, lower numbers being earlier in the tab order. 如果同一个父控件上的多个控件具有相同的选项卡索引,则这些控件的 z 顺序将确定循环遍历控件的顺序。If more than one control on the same parent control has the same tab index, the z-order of the controls determines the order to cycle through the controls.

对于要包含在 tab 键顺序中的控件,其 TabStop 属性必须设置为 trueFor a control to be included in the tab order, its TabStop property must be set to true.

适用于

另请参阅