通过循环遍历文本框 [英] iterate text boxes by a for loop

问题描述

说我有10个文本框，我希望把相同的文本到每个人。我不想写 textBoxNum。文本=你好！所以十倍我可能会这样写：

Say I have 10 text boxes and I want to put the same text into each of them. I don't want to write textBoxNum. Text = "hello!" ten times so I might write something like this:

for(int i=1; i<=10; i++)
{
    textBox + i. Text = "hello!";
}

显然，这是行不通的。

Obviously, it doesn't work.

怎么可以这样用为循环中完成？

How can this be done with a for loop ?

推荐答案

您要么需要将所有的文本框加载到列表或阵列结构，这将让你遍历它。

You either need to load all of your textboxes into a list or array structure, and this will allow you to iterate over it.

TextBox[] boxes = { tb1, tb2, tb3, ... };

否则，你可以检查控件属性为文本框的项目表单/容器键入。如果控制可以嵌套在更深的容器，你可能需要递归探索它们（在这一点上，我会认真考虑的阵列的方法，除非你有文本框的一些可怕的数量来加载）。但作为一个出发点，你可能有

Otherwise, you could inspect the Controls property of your form/container for items of the TextBox type. If the controls could be nested in deeper containers, you might need to recursively explore them (at this point, I would seriously consider an array approach, unless you have some ghastly number of textboxes to load). But as a starting point, you might have

foreach (var tb in this.Controls.OfType<TextBox>())
{
    tb.Text = "whatever";
}

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