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ToolStripRenderer.InitializeItem(ToolStripItem) Method

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Definition

Namespace:
System.Windows.Forms
Assembly:
System.Windows.Forms.dll
Source:
ToolStripRenderer.cs
Source:
ToolStripRenderer.cs
Source:
ToolStripRenderer.cs

When overridden in a derived class, provides for custom initialization of the given ToolStripItem.

protected public:
 virtual void InitializeItem(System::Windows::Forms::ToolStripItem ^ item);
protected internal virtual void InitializeItem (System.Windows.Forms.ToolStripItem item);
abstract member InitializeItem : System.Windows.Forms.ToolStripItem -> unit
override this.InitializeItem : System.Windows.Forms.ToolStripItem -> unit
Protected Friend Overridable Sub InitializeItem (item As ToolStripItem)

Parameters

item
ToolStripItem

The ToolStripItem to be initialized.

Examples

The following code example demonstrates how to initialize individual ToolStripItem controls. This code example is part of a larger example provided for the ToolStripRenderer class.

// This method initializes an individual ToolStripButton
// control. It copies a subimage from the GridStripRenderer's
// main image, according to the position and size of 
// the ToolStripButton.
protected override void InitializeItem(ToolStripItem item)
{
    base.InitializeItem(item);

    GridStrip gs = item.Owner as GridStrip;

    // The empty cell does not receive a subimage.
    if ((item is ToolStripButton) &&
        (item != gs.EmptyCell))
    {
        // Copy the subimage from the appropriate 
        // part of the main image.
        Bitmap subImage = bmp.Clone(
            item.Bounds,
            PixelFormat.Undefined);

        // Assign the subimage to the ToolStripButton
        // control's Image property.
        item.Image = subImage;
    }
}

' This method initializes an individual ToolStripButton
' control. It copies a subimage from the GridStripRenderer's
' main image, according to the position and size of 
' the ToolStripButton.
Protected Overrides Sub InitializeItem(item As ToolStripItem)
   MyBase.InitializeItem(item)
   
      Dim gs As GridStrip = item.Owner
   
   ' The empty cell does not receive a subimage.
      If ((TypeOf (item) Is ToolStripButton) And _
           (item IsNot gs.EmptyCell)) Then
          ' Copy the subimage from the appropriate 
          ' part of the main image.
          Dim subImage As Bitmap = bmp.Clone(item.Bounds, PixelFormat.Undefined)

          ' Assign the subimage to the ToolStripButton
          ' control's Image property.
          item.Image = subImage
      End If
End Sub

Remarks

Use the InitializeItem method to set properties, such as the ToolStripItem.BackColor or ToolStripItem.Font, when a ToolStripItem is rendered.

Applies to

See also