[英]Extend Usercontrol and preserve design mode
I need to add some functions and properties to a user control for a specific project, and to avoid writing them once and again and again I would like to write my own user control extending the existing one. 我需要为特定项目的用户控件添加一些功能和属性,并避免一遍又一遍地编写它们,我想编写自己的用户控件来扩展现有控件。
Of course I need also the design mode unaltered in my new version. 当然,我还需要在新版本中保持不变的设计模式。 What is the best way to do this? 做这个的最好方式是什么?
My project is a Windows forms project in visual studio 2015 我的项目是Visual Studio 2015中的Windows窗体项目
You can create a custom class which inherits from the other control, and you can add methods, properties and also override existing ones. 您可以创建一个自另一个控件继承的自定义类,还可以添加方法,属性并覆盖现有的方法,属性。 The design would remain the same: 设计将保持不变:
public class MyControl2 : ExistingControl {
public MyControl2() {
// Initialize
}
public void Method1() {
// Code
}
public int SomeProp
{
get { return 3; }
set { /* Do stuff (with value) */ }
}
// Overriding existing functions
public override int SomeValue()
{
return 45;
}
}
And then call it: 然后调用它:
MyControl2 x = new MyControl2();
Or (If you don't want to use code to manually load the component) you can simply build and add it to the interface by drag and dropping it from the toolbox. 或者(如果您不想使用代码手动加载组件),只需将其从工具箱中拖放,即可构建并将其添加到界面中。
I hope I understood what you meant to do : ) 我希望我能理解你的意思:)
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