我如何从蒙版文本框中验证数字? [英] How can i validate numeric numbers from masked textbox?

问题描述

先生，
先生，请帮助我，我该如何在Windows应用程序中从蒙版文本框(仅允许字母)验证数字和特殊字符!!

解决方案

具有RegularExpressionValidator 带有正确的正则表达式来验证textbox.

但是，如果您的要求是只允许MaskedTextBox 中的字母，那么我认为您可以考虑使用掩码字符吗?在Mask属性中

 MaskedTextBox1.Mask = " ; 

这 ? charcater允许
字母，可选.将输入限制为ASCII字母a-z和A-Z.此蒙版元素等效于[a-zA-Z]?在正则表达式中.如此处所述.
MaskedTextBox的Mask属性的蒙版元素 [ ^ ]

我在互联网上进行了搜索，发现了此 [ ^ ]，也许对您有用.

HI sir,
please help me sir, How can i validate numeric numbers and special characters from Masked Text Box(Allow only Alphabets)in windows Application !!

解决方案

Have a RegularExpressionValidator with proper regular expression validating the textbox.

But if your requirement is to allow only alphabet in the MaskedTextBox then I think you can consider using mask character ? in the Mask property

MaskedTextBox1.Mask = "???????";

The ? charcater allows a
Letter, optional. Restricts input to the ASCII letters a-z and A-Z. This mask element is equivalent to [a-zA-Z]? in regular expressions. as explained here.
Mask elements for Mask property of MaskedTextBox[^]

I did a search on the internet and found this[^], maybe it will be useful to you.

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