如何启用，禁用c＃中的文本框？ [英] how to enable, disable textbox in c#?

问题描述

如何启用，使用Windows窗体禁用c＃中的文本框？



i search n发现这个

how to enable, disable textbox in c# using windows form?

i search n found this

textbox.Enabled = false;

但这不起作用，文本框仍然启用

but this is not working,the textbox remains enable

推荐答案

没有不是真的。

当你设置 TextBox.Enabled = false 时，TextBox不会与用户交互。 TextBox仍然可见，通过代码，您可以为其分配一个新值。



请参阅 TextBox.Enabled [ ^ ]和如何在C＃中锁定文本框 [ ^ ]

No that is not true.
When you set TextBox.Enabled = false, the TextBox will not "interact" with the user. The TextBox is still visible and via code you can assign a new value to it.

Please see TextBox.Enabled[^] and How to Lock Text Boxes in C#[^]

int checker;

private void btnHideTextBox_Click((object sender, EventArgs e)
{

    if (checker%2 == 0)
      myTextBox.Enabled = false;
    else
      myTextBox.Enabled = true;

checker++;

}

试试这个............

Try this............

即使Enabled确实有效 - 我同意它没有''看起来，但我没有测试那么多 - 它可能会混淆用户，因为它看起来仍然应该工作。



相反，使用ReadOnly属性 - 也会使背景灰显，以便用户获得一个他无法输入信息的视觉提示。

Even if Enabled did work - which I agree it doesn''t appear to, but I haven''t tested that much - it would probably confuse the user because it would still look like it should work.

Instead, use the ReadOnly property - that also grays the background so the user gets a visual cue that he can''t enter information.

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