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Control.TabIndex Property

Gets or sets the tab order of the control within its container.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

[LocalizableAttribute(true)] 
public int TabIndex { get; set; }
/** @property */
public int get_TabIndex ()

/** @property */
public void set_TabIndex (int value)

public function get TabIndex () : int

public function set TabIndex (value : int)

Property Value

The index value of the control within the set of controls within its container. The controls in the container are included in the tab order.

A tab index can consist of any valid integer greater than or equal to zero, lower numbers being earlier in the tab order. 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.

For a control to be included in the tab order, its TabStop property must be set to true.

The following code example adds a Button to a form and sets some of its common properties. The example anchors the button to the bottom-right corner of the form so it keeps its relative position as the form is resized. Next it sets the BackgroundImage and resizes the button to the same size as the Image. The example then sets the TabStop to true and sets the TabIndex property. Lastly, it adds an event handler to handle the Click event of the button. This 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 = 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 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.set_Anchor(AnchorStyles.Bottom | AnchorStyles.Right);
    // Assign a background image.
    button1.set_BackgroundImage(imageList1.get_Images().get_Item(0));
    // Specify the layout style of the background image. Tile is the 
    // default.
    button1.set_BackgroundImageLayout(ImageLayout.Center);
    // Make the button the same size as the image.
    button1.set_Size(button1.get_BackgroundImage().get_Size());
    // Set the button's TabIndex and TabStop properties.
    button1.set_TabIndex(1);
    button1.set_TabStop(true);
    // Add a delegate to handle the Click event.
    button1.add_Click(new System.EventHandler(this.button1_Click));
    // Add the button to the form.
    this.get_Controls().Add(button1);
} //AddMyButton

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

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0

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