如何在自定义控件的“属性”窗口中创建链接？

发布于 2024-10-03 15:28:41 字数 207 浏览 4 评论 0原文

在 .NET Framework 中，有多个控件在 Visual Studio 设计器的“属性”窗口中的属性列表下方列出了许多链接。（例如TabControl、ComboBox）

我已经构建了一个自定义控件，并且我想在属性窗口上创建一个链接，如TabControl 和ComboBox。单击链接时，应该调用我的控件上的某个方法。

我该怎么做？

谢谢！

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梦里寻她 2024-10-10 15:28:41

您需要为您的控件创建一个自定义设计器并覆盖 Verbs 属性。第一次调用重写时，创建一个 DesignerVerbCollection 并填充它。在每次后续调用时返回集合。

编辑：顺便说一下，您可以通过从 System.Windows.Forms.Design.ControlDesigner 派生来创建设计器，并通过将此属性放在类上来将其应用到您的类：

 [Designer(MyControlDesigner)]
 public class MyControl
 {
    // ...
 }

You need to create a custom designer for your control and override the Verbs property. The first time your override is called, create a DesignerVerbCollection and populate it. Return the collection on each subsequent call.

Edit: By the way, you create the designer by deriving from System.Windows.Forms.Design.ControlDesigner and you apply it to your class by putting this attribute on your class:

 [Designer(MyControlDesigner)]
 public class MyControl
 {
    // ...
 }

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玻璃人 2024-10-10 15:28:41

我认为您正在寻找 DesignerVerb班级。

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酒与心事 2024-10-10 15:28:41

devarticles< /a>

public class DirectoryTreeDesigner : ControlDesigner 
{ 

protected override void PostFilterProperties( 
System.Collections.IDictionary properties) 
{ 
     properties.Remove("Nodes"); 
} 

DesignerVerbCollection verbs = new DesignerVerbCollection(); 

public DirectoryTreeDesigner() 
{ 
     // Configure the designer verb collection. 
     string[] drives = System.IO.Directory.GetLogicalDrives(); 

     foreach (string drive in drives) 
     { 
         verbs.Add(new DesignerVerb("Set Drive " + drive, new EventHandler(OnVerb))); 
     } 
} 

public override DesignerVerbCollection Verbs 
{ 
     get { return verbs; } 
} 

protected void OnVerb(object sender, EventArgs e) 
{ 
    // Retrieve the selected drive. 
    char driveLetter = ((DesignerVerb)sender).Text[10]; 

    // Adjust the associated control. 
    ((DirectoryTree)this.Control).Drive = driveLetter; 
}

}

devarticles

public class DirectoryTreeDesigner : ControlDesigner 
{ 

protected override void PostFilterProperties( 
System.Collections.IDictionary properties) 
{ 
     properties.Remove("Nodes"); 
} 

DesignerVerbCollection verbs = new DesignerVerbCollection(); 

public DirectoryTreeDesigner() 
{ 
     // Configure the designer verb collection. 
     string[] drives = System.IO.Directory.GetLogicalDrives(); 

     foreach (string drive in drives) 
     { 
         verbs.Add(new DesignerVerb("Set Drive " + drive, new EventHandler(OnVerb))); 
     } 
} 

public override DesignerVerbCollection Verbs 
{ 
     get { return verbs; } 
} 

protected void OnVerb(object sender, EventArgs e) 
{ 
    // Retrieve the selected drive. 
    char driveLetter = ((DesignerVerb)sender).Text[10]; 

    // Adjust the associated control. 
    ((DirectoryTree)this.Control).Drive = driveLetter; 
}

}

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