如何：为应用程序设置 ToolStrip 呈现程序
可以分别自定义各个 ToolStrip 控件的外观，也可以一次性地为应用程序中的所有 ToolStrip 控件自定义外观。
示例
下面的代码示例演示如何选择性地将自定义呈现程序应用于 ToolStrip 控件和 MenuStrip 控件。
要使用此代码示例，请先编译并运行应用程序，然后从 ComboBox 控件中选择自定义呈现的范围。 单击**“应用”**设置呈现程序。
要查看菜单项的自定义呈现效果，请从 ComboBox 控件中选择 MenuStrip 选项，单击**“应用”，然后打开“文件”**菜单项。
Imports System
Imports System.Collections.Generic
Imports System.Windows.Forms
Imports System.Drawing
...
' This example demonstrates how to apply a
' custom professional renderer to an individual
' ToolStrip or to the application as a whole.
Class Form6
Inherits Form
Private targetComboBox As New ComboBox()
Public Sub New()
' Alter the renderer at the top level.
' Create and populate a new ToolStrip control.
Dim ts As New ToolStrip()
ts.Name = "ToolStrip"
ts.Items.Add("Apples")
ts.Items.Add("Oranges")
ts.Items.Add("Pears")
' Create a new menustrip with a new window.
Dim ms As New MenuStrip()
ms.Name = "MenuStrip"
ms.Dock = DockStyle.Top
' add top level items
Dim fileMenuItem As New ToolStripMenuItem("File")
ms.Items.Add(fileMenuItem)
ms.Items.Add("Edit")
ms.Items.Add("View")
ms.Items.Add("Window")
' Add subitems to the "File" menu.
fileMenuItem.DropDownItems.Add("Open")
fileMenuItem.DropDownItems.Add("Save")
fileMenuItem.DropDownItems.Add("Save As...")
fileMenuItem.DropDownItems.Add("-")
fileMenuItem.DropDownItems.Add("Exit")
' Add a Button control to apply renderers.
Dim applyButton As New Button()
applyButton.Text = "Apply Custom Renderer"
AddHandler applyButton.Click, AddressOf applyButton_Click
' Add the ComboBox control for choosing how
' to apply the renderers.
targetComboBox.Items.Add("All")
targetComboBox.Items.Add("MenuStrip")
targetComboBox.Items.Add("ToolStrip")
targetComboBox.Items.Add("Reset")
' Create and set up a TableLayoutPanel control.
Dim tlp As New TableLayoutPanel()
tlp.Dock = DockStyle.Fill
tlp.RowCount = 1
tlp.ColumnCount = 2
tlp.ColumnStyles.Add(New ColumnStyle(SizeType.AutoSize))
tlp.ColumnStyles.Add(New ColumnStyle(SizeType.Percent))
tlp.Controls.Add(applyButton)
tlp.Controls.Add(targetComboBox)
' Create a GroupBox for the TableLayoutPanel control.
Dim gb As New GroupBox()
gb.Text = "Apply Renderers"
gb.Dock = DockStyle.Fill
gb.Controls.Add(tlp)
' Add the GroupBox to the form.
Me.Controls.Add(gb)
' Add the ToolStrip to the form's Controls collection.
Me.Controls.Add(ts)
' Add the MenuStrip control last.
' This is important for correct placement in the z-order.
Me.Controls.Add(ms)
End Sub
' This event handler is invoked when
' the "Apply Renderers" button is clicked.
' Depending on the value selected in a ComboBox
' control, it applies a custom renderer selectively
' to individual MenuStrip or ToolStrip controls,
' or it applies a custom renderer to the
' application as a whole.
Sub applyButton_Click(ByVal sender As Object, ByVal e As EventArgs)
Dim ms As ToolStrip = ToolStripManager.FindToolStrip("MenuStrip")
Dim ts As ToolStrip = ToolStripManager.FindToolStrip("ToolStrip")
If targetComboBox.SelectedItem IsNot Nothing Then
Select Case targetComboBox.SelectedItem.ToString()
Case "Reset"
ms.RenderMode = ToolStripRenderMode.ManagerRenderMode
ts.RenderMode = ToolStripRenderMode.ManagerRenderMode
' Set the default RenderMode to Professional.
ToolStripManager.RenderMode = ToolStripManagerRenderMode.Professional
Exit Select
Case "All"
ms.RenderMode = ToolStripRenderMode.ManagerRenderMode
ts.RenderMode = ToolStripRenderMode.ManagerRenderMode
' Assign the custom renderer at the application level.
ToolStripManager.Renderer = New CustomProfessionalRenderer()
Exit Select
Case "MenuStrip"
' Assign the custom renderer to the MenuStrip control only.
ms.Renderer = New CustomProfessionalRenderer()
Exit Select
Case "ToolStrip"
' Assign the custom renderer to the ToolStrip control only.
ts.Renderer = New CustomProfessionalRenderer()
Exit Select
End Select
End If
End Sub
End Class
' This type demonstrates a custom renderer. It overrides the
' OnRenderMenuItemBackground and OnRenderButtonBackground methods
' to customize the backgrounds of MenuStrip items and ToolStrip buttons.
Class CustomProfessionalRenderer
Inherits ToolStripProfessionalRenderer
Protected Overrides Sub OnRenderMenuItemBackground(e As ToolStripItemRenderEventArgs)
If e.Item.Selected Then
Dim b = New SolidBrush(ProfessionalColors.SeparatorLight)
Try
e.Graphics.FillEllipse(b, e.Item.ContentRectangle)
Finally
b.Dispose()
End Try
Else
Dim p As New Pen(ProfessionalColors.SeparatorLight)
Try
e.Graphics.DrawEllipse(p, e.Item.ContentRectangle)
Finally
p.Dispose()
End Try
End If
End Sub
Protected Overrides Sub OnRenderButtonBackground(e As ToolStripItemRenderEventArgs)
Dim r As Rectangle = Rectangle.Inflate(e.Item.ContentRectangle, - 2, - 2)
If e.Item.Selected Then
Dim b = New SolidBrush(ProfessionalColors.SeparatorLight)
Try
e.Graphics.FillRectangle(b, r)
Finally
b.Dispose()
End Try
Else
Dim p As New Pen(ProfessionalColors.SeparatorLight)
Try
e.Graphics.DrawRectangle(p, r)
Finally
p.Dispose()
End Try
End If
End Sub
End Class
using System;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Drawing;
...
// This example demonstrates how to apply a
// custom professional renderer to an individual
// ToolStrip or to the application as a whole.
class Form6 : Form
{
ComboBox targetComboBox = new ComboBox();
public Form6()
{
// Alter the renderer at the top level.
// Create and populate a new ToolStrip control.
ToolStrip ts = new ToolStrip();
ts.Name = "ToolStrip";
ts.Items.Add("Apples");
ts.Items.Add("Oranges");
ts.Items.Add("Pears");
// Create a new menustrip with a new window.
MenuStrip ms = new MenuStrip();
ms.Name = "MenuStrip";
ms.Dock = DockStyle.Top;
// add top level items
ToolStripMenuItem fileMenuItem = new ToolStripMenuItem("File");
ms.Items.Add(fileMenuItem);
ms.Items.Add("Edit");
ms.Items.Add("View");
ms.Items.Add("Window");
// Add subitems to the "File" menu.
fileMenuItem.DropDownItems.Add("Open");
fileMenuItem.DropDownItems.Add("Save");
fileMenuItem.DropDownItems.Add("Save As...");
fileMenuItem.DropDownItems.Add("-");
fileMenuItem.DropDownItems.Add("Exit");
// Add a Button control to apply renderers.
Button applyButton = new Button();
applyButton.Text = "Apply Custom Renderer";
applyButton.Click += new EventHandler(applyButton_Click);
// Add the ComboBox control for choosing how
// to apply the renderers.
targetComboBox.Items.Add("All");
targetComboBox.Items.Add("MenuStrip");
targetComboBox.Items.Add("ToolStrip");
targetComboBox.Items.Add("Reset");
// Create and set up a TableLayoutPanel control.
TableLayoutPanel tlp = new TableLayoutPanel();
tlp.Dock = DockStyle.Fill;
tlp.RowCount = 1;
tlp.ColumnCount = 2;
tlp.ColumnStyles.Add(new ColumnStyle(SizeType.AutoSize));
tlp.ColumnStyles.Add(new ColumnStyle(SizeType.Percent));
tlp.Controls.Add(applyButton);
tlp.Controls.Add(targetComboBox);
// Create a GroupBox for the TableLayoutPanel control.
GroupBox gb = new GroupBox();
gb.Text = "Apply Renderers";
gb.Dock = DockStyle.Fill;
gb.Controls.Add(tlp);
// Add the GroupBox to the form.
this.Controls.Add(gb);
// Add the ToolStrip to the form's Controls collection.
this.Controls.Add(ts);
// Add the MenuStrip control last.
// This is important for correct placement in the z-order.
this.Controls.Add(ms);
}
// This event handler is invoked when
// the "Apply Renderers" button is clicked.
// Depending on the value selected in a ComboBox control,
// it applies a custom renderer selectively to
// individual MenuStrip or ToolStrip controls,
// or it applies a custom renderer to the
// application as a whole.
void applyButton_Click(object sender, EventArgs e)
{
ToolStrip ms = ToolStripManager.FindToolStrip("MenuStrip");
ToolStrip ts = ToolStripManager.FindToolStrip("ToolStrip");
if (targetComboBox.SelectedItem != null)
{
switch (targetComboBox.SelectedItem.ToString())
{
case "Reset":
{
ms.RenderMode = ToolStripRenderMode.ManagerRenderMode;
ts.RenderMode = ToolStripRenderMode.ManagerRenderMode;
// Set the default RenderMode to Professional.
ToolStripManager.RenderMode = ToolStripManagerRenderMode.Professional;
break;
}
case "All":
{
ms.RenderMode = ToolStripRenderMode.ManagerRenderMode;
ts.RenderMode = ToolStripRenderMode.ManagerRenderMode;
// Assign the custom renderer at the application level.
ToolStripManager.Renderer = new CustomProfessionalRenderer();
break;
}
case "MenuStrip":
{
// Assign the custom renderer to the MenuStrip control only.
ms.Renderer = new CustomProfessionalRenderer();
break;
}
case "ToolStrip":
{
// Assign the custom renderer to the ToolStrip control only.
ts.Renderer = new CustomProfessionalRenderer();
break;
}
}
}
}
}
// This type demonstrates a custom renderer. It overrides the
// OnRenderMenuItemBackground and OnRenderButtonBackground methods
// to customize the backgrounds of MenuStrip items and ToolStrip buttons.
class CustomProfessionalRenderer : ToolStripProfessionalRenderer
{
protected override void OnRenderMenuItemBackground(ToolStripItemRenderEventArgs e)
{
if (e.Item.Selected)
{
using (Brush b = new SolidBrush(ProfessionalColors.SeparatorLight))
{
e.Graphics.FillEllipse(b, e.Item.ContentRectangle);
}
}
else
{
using (Pen p = new Pen(ProfessionalColors.SeparatorLight))
{
e.Graphics.DrawEllipse(p, e.Item.ContentRectangle);
}
}
}
protected override void OnRenderButtonBackground(ToolStripItemRenderEventArgs e)
{
Rectangle r = Rectangle.Inflate(e.Item.ContentRectangle, -2, -2);
if (e.Item.Selected)
{
using (Brush b = new SolidBrush(ProfessionalColors.SeparatorLight))
{
e.Graphics.FillRectangle(b, r);
}
}
else
{
using (Pen p = new Pen(ProfessionalColors.SeparatorLight))
{
e.Graphics.DrawRectangle(p, r);
}
}
}
}
设置 ToolStripManager.Renderer 属性可以将自定义呈现程序应用于应用程序中的所有 ToolStrip 控件。
设置 ToolStrip.Renderer 属性可以将自定义呈现程序应用于单个 ToolStrip 控件。
编译代码
此示例需要：
- 对 System.Design、System.Drawing 和 System.Windows.Forms 程序集的引用。
有关从 Visual Basic 或 Visual C# 的命令行生成此示例的信息，请参见从命令行生成 (Visual Basic) 或在命令行上使用 csc.exe 生成。 也可以通过将代码粘贴到新项目，在 Visual Studio 中生成此示例。 有关更多信息，请参见 如何：使用 Visual Studio 编译和运行完整的 Windows 窗体代码示例 和 如何：使用 Visual Studio 编译和运行完整的 Windows 窗体代码示例 和 如何：使用 Visual Studio 编译和运行完整的 Windows 窗体代码示例 和 如何：使用 Visual Studio 编译和运行完整的 Windows 窗体代码示例 和 如何：使用 Visual Studio 编译和运行完整的 Windows 窗体代码示例.