ToolStripItem.ImageKey ToolStripItem.ImageKey ToolStripItem.ImageKey ToolStripItem.ImageKey Property

定义

获取或设置显示在 ImageList 上的 ToolStripItem 中图像的键访问器。Gets or sets the key accessor for the image in the ImageList that is displayed on a ToolStripItem.

public:
 property System::String ^ ImageKey { System::String ^ get(); void set(System::String ^ value); };
[System.ComponentModel.Browsable(false)]
[System.ComponentModel.TypeConverter(typeof(System.Windows.Forms.ImageKeyConverter))]
[System.Windows.Forms.RelatedImageList("Owner.ImageList")]
public string ImageKey { get; set; }
member this.ImageKey : string with get, set
Public Property ImageKey As String

属性值

一个表示图像的键的字符串。A string representing the key of the image.

示例

下面的代码示例演示如何设置ImageKey属性。The following code example demonstrates how to set the ImageKey property. 此代码示例是为ToolStripItem类提供的更大示例的一部分。This code example is part of a larger example provided for the ToolStripItem class.

// This utility method creates a RolloverItem 
// and adds it to a ToolStrip control.
private RolloverItem CreateRolloverItem(
    ToolStrip owningToolStrip,
    string txt,
    Font f,
    string imgKey,
    TextImageRelation tir,
    string backImgKey)
{
    RolloverItem item = new RolloverItem();

    item.Alignment = ToolStripItemAlignment.Left;
    item.AllowDrop = false;
    item.AutoSize = true;

    item.BackgroundImage = owningToolStrip.ImageList.Images[backImgKey];
    item.BackgroundImageLayout = ImageLayout.Center;
    item.DisplayStyle = ToolStripItemDisplayStyle.ImageAndText;
    item.DoubleClickEnabled = true;
    item.Enabled = true;
    item.Font = f;

    // These assignments are equivalent. Each assigns an
    // image from the owning toolstrip's image list.
    item.ImageKey = imgKey;
    //item.Image = owningToolStrip.ImageList.Images[infoIconKey];
    //item.ImageIndex = owningToolStrip.ImageList.Images.IndexOfKey(infoIconKey);
    item.ImageScaling = ToolStripItemImageScaling.None;

    item.Owner = owningToolStrip;
    item.Padding = new Padding(2);
    item.Text = txt;
    item.TextAlign = ContentAlignment.MiddleLeft;
    item.TextDirection = ToolStripTextDirection.Horizontal;
    item.TextImageRelation = tir;

    return item;
}
' This utility method creates a RolloverItem 
' and adds it to a ToolStrip control.
 Private Function CreateRolloverItem( _
 ByVal owningToolStrip As ToolStrip, _
 ByVal txt As String, _
 ByVal f As Font, _
 ByVal imgKey As String, _
 ByVal tir As TextImageRelation, _
 ByVal backImgKey As String) As RolloverItem

     Dim item As New RolloverItem()

     item.Alignment = ToolStripItemAlignment.Left
     item.AllowDrop = False
     item.AutoSize = True

     item.BackgroundImage = owningToolStrip.ImageList.Images(backImgKey)
     item.BackgroundImageLayout = ImageLayout.Center
     item.DisplayStyle = ToolStripItemDisplayStyle.ImageAndText
     item.DoubleClickEnabled = True
     item.Enabled = True
     item.Font = f

     ' These assignments are equivalent. Each assigns an
     ' image from the owning toolstrip's image list.
     item.ImageKey = imgKey
     'item.Image = owningToolStrip.ImageList.Images[infoIconKey];
     'item.ImageIndex = owningToolStrip.ImageList.Images.IndexOfKey(infoIconKey);
     item.ImageScaling = ToolStripItemImageScaling.None

     item.Owner = owningToolStrip
     item.Padding = New Padding(2)
     item.Text = txt
     item.TextAlign = ContentAlignment.MiddleLeft
     item.TextDirection = ToolStripTextDirection.Horizontal
     item.TextImageRelation = tir

     Return item
 End Function

注解

ImageIndex属性指定图像在图像列表中的位置。The ImageIndex property specifies the position of the image in the image list. ImageKey属性指定图像本身。The ImageKey property specifies the image itself.

Image、 、、ImageAlign和属性与图像处理的ImageScaling各个方面相关。 ImageIndex ImageKeyThe Image, ImageAlign, ImageIndex, ImageKey, and ImageScaling properties pertain to various aspects of image handling. 通过直接设置ToolStrip这些属性或通过设置运行时ImageList属性来使用控件中的图像。Use images in ToolStrip controls by setting these properties directly or by setting the run-time-only ImageList property.

图像缩放是通过ToolStripToolStripItem中的属性交互确定的, 如下所示:Image scaling is determined by the interaction of properties in both ToolStrip and ToolStripItem, as follows:

适用于