如何防止在文本框控件中拖放文本和复制粘贴文本 [英] How to prevent a drag and drop text and Copy paste text in your textbox control

问题描述

大家好，

我想防止复制粘贴和拖放到HTML文本框.

有可能吗?

如果是，那怎么办?

谢谢与问候，

Arvind Thakur

Hi Guys,

I want to prevent copy-paste and drag-n-drop to my html textbox.

Is it possible?

If yes then how?

Thanks & regards,

Arvind Thakur

推荐答案

个人而言，我希望您没有.
我经常使用复制粘贴来输入密码，尤其是在设置密码时，因此我知道加密存储中的版本与输入的数据相同.禁用它使我很烦-我的ISP做到了，所以我必须手动输入它.对于某些残疾人来说，使用他们的计算机也将变得更加困难.

不过，它仍然适用于大多数浏览器:

Personally, I would rather you didn''t.
I frequently use copy-paste to enter passwords, particularly when I am setting them up, so I know the version in my encrypted store is the same as the entered data. Disabling that annoys me - my ISP does it so I have to manually type it in. It would also be harder for some disabled people to use their computer.

Still, it works for most browsers:

<input type="text" name="TextBox1" onPaste="return false" />

禁用文本框中的粘贴-它不是标准内容的一部分，但即使不是所有浏览器，它也可以在大多数浏览器中使用，即使VS说它不存在.
您不能禁用文本框上的拖放-按文本框AFAIK，但要查看表单的onDragDrop属性.我不知道它是否有效(在Chrome中，它会在窗口中打开文件).

Disables paste in a textbox - it is not part of the standard but it should work in most if not all browsers, even if VS says it doesn''t exist.
You can''t disable drag-drop on a textbox - by textbox basis AFAIK, but look at the onDragDrop property of the form. I have no idea if it works (in Chrome it opens the file in the window).

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