如何在 C# 中访问用户控件的属性 [英] How to access properties of a usercontrol in C#

问题描述

我制作了一个带有一个文本框和一个富文本框的 C# 用户控件.

I've made a C# usercontrol with one textbox and one richtextbox.

如何从用户控件外部访问富文本框的属性.

How can I access the properties of the richtextbox from outside the usercontrol.

例如..如果我把它放在一个表单中，我如何使用richtextbox的Text属性???

For example.. if i put it in a form, how can i use the Text propertie of the richtextbox???

谢谢

推荐答案

最简洁的方法是将所需的属性公开为用户控件的属性，例如:

Cleanest way is to expose the desired properties as properties of your usercontrol, e.g:

class MyUserControl
{
  // expose the Text of the richtext control (read-only)
  public string TextOfRichTextBox
  {
    get { return richTextBox.Text; }
  }
  // expose the Checked Property of a checkbox (read/write)
  public bool CheckBoxProperty
  {
    get { return checkBox.Checked; }
    set { checkBox.Checked = value; }
  }


  //...
}

通过这种方式，您可以控制要公开哪些属性以及它们应该是读/写还是只读.(当然，您应该为属性使用更好的名称，具体取决于它们的含义).

In this way you can control which properties you want to expose and whether they should be read/write or read-only. (of course you should use better names for the properties, depending on their meaning).

这种方法的另一个优点是它隐藏了用户控件的内部实现.如果您想将富文本控件与不同的控件交换，则不会破坏控件的调用者/用户.

Another advantage of this approach is that it hides the internal implementation of your user control. Should you ever want to exchange your richtext control with a different one, you won't break the callers/users of your control.

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