ToolStripRenderer.InitializeItem(ToolStripItem) ToolStripRenderer.InitializeItem(ToolStripItem) ToolStripRenderer.InitializeItem(ToolStripItem) ToolStripRenderer.InitializeItem(ToolStripItem) Method

定义

在派生类中重写时,提供给定 ToolStripItem 的自定义初始化。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)

参数

item
ToolStripItem ToolStripItem ToolStripItem ToolStripItem

要初始化的 ToolStripItemThe ToolStripItem to be initialized.

示例

下面的代码示例演示如何初始化各个ToolStripItem控件。The following code example demonstrates how to initialize individual ToolStripItem controls. 此代码示例是为ToolStripRenderer类提供的更大示例的一部分。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 

注解

在呈现时ToolStripItem.BackColor ToolStripItem.Font InitializeItem ,可以使用方法来设置属性ToolStripItem , 如或。Use the InitializeItem method to set properties, such as the ToolStripItem.BackColor or ToolStripItem.Font, when a ToolStripItem is rendered.

适用于

另请参阅