如何访问像CheckBox或textBox这样的Group Box项？ [英] How do I access a Group Box item like a checkBox or textBox?

问题描述

这就是我在form1上的内容：



checkBox0 ... to checkBox9 ==>在GroupBoxA

textBox0 ...到textBox9 ==>在GroupBoxB



richTextBox1





我想访问每个Box in一个循环。像这样



for（int i = 0; i< = 9; i ++）{



richTextBox .AppendText（checkBox [i] + textBox [i]）;



}

解决方案

这个问题没什么意义。具体如何与群组相关？



如果你想访问某些控制的所有孩子，你可以使用 foreach ：

控制父=  //   ...  
  foreach （控制子  parent.Controls）
  //  对孩子做点什么 

你可能想要递归地做。



有时，使用控件的数组（集合）是个好主意。但设计师会为您提供每个控件的个人名称。该怎么办？两件事情。首先，您可以专门为此创建一个父控件，因此您可以枚举集合的控件 Controls ，并且如果需要，可以在所有控件中引用所有控件。数组/集合，以便稍后通过索引访问它们，正如您在代码示例中所写的那样。



第二种方法是：设计人员不创建数组，所以 - 不要不要使用设计师。如果你有很多控件，在设计器中添加它们就是转储机械工作，难以维护，容易出错。以编程方式执行。然后你根本不需要所有这些控件的单独名称，因为对数组/集合对象的引用足以访问它们。

- SA

this is what I have on my form1:

checkBox0 ... to checkBox9 ==> in GroupBoxA
textBox0 ... to textBox9 ==> in GroupBoxB

richTextBox1


I want to access each Box in a Loop. like this

for (int i=0; i<=9; i++){

richTextBox.AppendText(checkBox[i]+textBox[i]);

}

解决方案

The question makes little sense. How is that related to a group box, specifically?

If you want to access all children of some control, you can use foreach:

Control parent = //... 
foreach(Control child in parent.Controls)
   // do something with child

You may want to do it recursively.

Sometimes, it's a good idea to use arrays (collections) of controls. But designer gives you individual name for each control. What to do? Two things. First, you can create a parent control specially for this purpose, so you can enumerate the controls of the collection Controls, and, if needed, put reference to all of them in an array/collection, to later access them by index, as you wrote in your code sample.

Second approach is this: designer don't create arrays, so — don't use a designer. If you have many controls, adding them in the designer is the dump mechanical work, hard to maintain, error-prone. Do it programmatically. Then you won't need individual names for all those controls at all, because the reference to array/collection object is enough to access them all.

—SA

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