如何验证只输入文本框中的数字....而不是字母表 [英] How to give Validation to enter only numbers in Textbox.... not alphabets

问题描述

亲爱的朋友们，



我正在使用asp.net c＃，Sqlserver 2005.



我我的网页上有一个文本框...如何设置该文本框的验证。



我只需输入该文本框中的数字....它不应该拿字母表。



如果用户在该文本框中输入字母...它必须显示一条消息。请输入数字。



请告诉我，



谢谢。

Dear Friends,

am working on asp.net c#, Sqlserver 2005.

I have a textbox on my webpage...How to Set the validation for that Textbox.

I need to enter only numbers in that textbox....it should not take alphabets.

If the user enters alphabets in that textbox...it must show a message. Please enter only numbers.

Please show me,

Thanks.

推荐答案

试试这个..



仅接受数字的文本框 [ ^ ]

Try this..

Text box to accept only number[^]

试试这个：

Try this:

void NumberValidation(object sender, KeyPressEventArgs e)
        {
            if ((e.KeyChar >= 48 && e.KeyChar <= 57) || e.KeyChar == 8)
            {
                e.Handled = false;
            }
            else
            {
                e.Handled = true;
            }
        }

还可以通过以下链接：



http：//techo.luefher .com / coding / javascript-js / how-to-allow-only-numbers-in-html-textbox-using-javascript / [ ^ ]

http://csharpdotnetfreak.blogspot.com/2011/10/numeric- number-only-textbox -javascript.html [ ^ ]

Also go through below link:

http://techo.luefher.com/coding/javascript-js/how-to-allow-only-numbers-in-html-textbox-using-javascript/[^]
http://csharpdotnetfreak.blogspot.com/2011/10/numeric-number-only-textbox-javascript.html[^]

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