ToolBarButton.ImageIndex 属性
重要
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获取或设置分配给按钮的图像的索引值。
public:
property int ImageIndex { int get(); void set(int value); };C#
[System.ComponentModel.TypeConverter(typeof(System.Windows.Forms.ImageIndexConverter))]
public int ImageIndex { get; set; }[<System.ComponentModel.TypeConverter(typeof(System.Windows.Forms.ImageIndexConverter))>]
member this.ImageIndex : int with get, setPublic Property ImageIndex As Integer分配给工具栏按钮的 Image 的索引值。 默认值为 -1。
- 属性
value 小于 -1。
下面的代码示例创建和三ToolBarButton个ToolBar控件，将按钮分配给工具栏，并设置一些按钮的通用属性。 此代码要求MenuItem已创建 、 ToolTipImageList和 ，Form并且ImageList至少为其分配了一个 Image 。
public:
void InitializeMyToolBar()
{
// Create the ToolBar, ToolBarButton controls, and menus.
ToolBarButton^ toolBarButton1 = gcnew ToolBarButton( "Open" );
ToolBarButton^ toolBarButton2 = gcnew ToolBarButton;
ToolBarButton^ toolBarButton3 = gcnew ToolBarButton;
ToolBar^ toolBar1 = gcnew ToolBar;
MenuItem^ menuItem1 = gcnew MenuItem( "Print" );
array<MenuItem^>^ temp1 = {menuItem1};
System::Windows::Forms::ContextMenu^ contextMenu1 =
gcnew System::Windows::Forms::ContextMenu( temp1 );
// Add the ToolBarButton controls to the ToolBar.
toolBar1->Buttons->Add( toolBarButton1 );
toolBar1->Buttons->Add( toolBarButton2 );
toolBar1->Buttons->Add( toolBarButton3 );
// Assign an ImageList to the ToolBar and show ToolTips.
toolBar1->ImageList = imageList1;
toolBar1->ShowToolTips = true;
/* Assign ImageIndex, ContextMenu, Text, ToolTip, and
Style properties of the ToolBarButton controls. */
toolBarButton2->Style = ToolBarButtonStyle::Separator;
toolBarButton3->Text = "Print";
toolBarButton3->Style = ToolBarButtonStyle::DropDownButton;
toolBarButton3->ToolTipText = "Print";
toolBarButton3->ImageIndex = 0;
toolBarButton3->DropDownMenu = contextMenu1;
// Add the ToolBar to a form.
Controls->Add( toolBar1 );
}
C#
public void InitializeMyToolBar()
{
// Create the ToolBar, ToolBarButton controls, and menus.
ToolBarButton toolBarButton1 = new ToolBarButton("Open");
ToolBarButton toolBarButton2 = new ToolBarButton();
ToolBarButton toolBarButton3 = new ToolBarButton();
ToolBar toolBar1 = new ToolBar();
MenuItem menuItem1 = new MenuItem("Print");
ContextMenu contextMenu1 = new ContextMenu(new MenuItem[]{menuItem1});
// Add the ToolBarButton controls to the ToolBar.
toolBar1.Buttons.Add(toolBarButton1);
toolBar1.Buttons.Add(toolBarButton2);
toolBar1.Buttons.Add(toolBarButton3);
// Assign an ImageList to the ToolBar and show ToolTips.
toolBar1.ImageList = imageList1;
toolBar1.ShowToolTips = true;
/* Assign ImageIndex, ContextMenu, Text, ToolTip, and
Style properties of the ToolBarButton controls. */
toolBarButton2.Style = ToolBarButtonStyle.Separator;
toolBarButton3.Text = "Print";
toolBarButton3.Style = ToolBarButtonStyle.DropDownButton;
toolBarButton3.ToolTipText = "Print";
toolBarButton3.ImageIndex = 0;
toolBarButton3.DropDownMenu = contextMenu1;
// Add the ToolBar to a form.
Controls.Add(toolBar1);
}
Public Sub InitializeMyToolBar()
' Create the ToolBar, ToolBarButton controls, and menus.
Dim toolBarButton1 As New ToolBarButton("Open")
Dim toolBarButton2 As New ToolBarButton()
Dim toolBarButton3 As New ToolBarButton()
Dim toolBar1 As New ToolBar()
Dim menuItem1 As New MenuItem("Print")
Dim contextMenu1 As New ContextMenu(New MenuItem(){menuItem1})
' Add the ToolBarButton controls to the ToolBar.
toolBar1.Buttons.Add(toolBarButton1)
toolBar1.Buttons.Add(toolBarButton2)
toolBar1.Buttons.Add(toolBarButton3)
' Assign an ImageList to the ToolBar and show ToolTips.
toolBar1.ImageList = imageList1
toolBar1.ShowToolTips = True
' Assign ImageIndex, ContextMenu, Text, ToolTip, and
' Style properties of the ToolBarButton controls.
toolBarButton2.Style = ToolBarButtonStyle.Separator
toolBarButton3.Text = "Print"
toolBarButton3.Style = ToolBarButtonStyle.DropDownButton
toolBarButton3.ToolTipText = "Print"
toolBarButton3.ImageIndex = 0
toolBarButton3.DropDownMenu = contextMenu1
' Add the ToolBar to a form.
Controls.Add(toolBar1)
End Sub
值ImageIndex引用分配给父ToolBar控件的 中ImageList图像的索引值。
ImageKey 和 ImageIndex 是互斥的，这意味着如果设置了一个，另一个设置为无效值并忽略。 如果设置 ImageKey 属性，该 ImageIndex 属性将自动设置为 -1。 或者，如果设置 ImageIndex 属性，则 ImageKey 会自动设置为空字符串 (“”) 。
| 产品 | 版本 |
|---|---|
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| Windows Desktop | 3.0, 10 |
