我如何...输入数字图 [英] How do I...enter numeric figure

问题描述

亲爱的先生



我有两个文本框，我希望用户只输入数字图形和文本文本中的点（。）。

我怎么能这样做？



提前预定

ajit vyas

解决方案

< blockquote>有两种基本方法：对于WinForms，我强烈建议使用 NumericUpDown类 [ ^ ]而不是文本框 - 它不仅允许您设置允许的最大值和最小值，还会为您转换为数字自动。



对于基于Web的解决方案，您最好使用某种Javascript解决方案。这里有一个很好的： http://www.javascript-coder.com/html -form / javascript-form-validation.phtml [ ^ ]但您必须记住仍然在服务器上进行验证！

dear Sir

I have two textbox and i want user to input only Numeric figure and dot(.)in textboxt.
How can i do this?

thaks in advance
ajit vyas

解决方案

There are two basic approaches: for WinForms, I would strongly recommend using a NumericUpDown class[^] instead of a textbox - not only does it allow you to set a max and min value that is allowed, but it also converts to a number for you automatically.

For a web based solution, you are best with a Javascript solution of some kind. There is a good one here: http://www.javascript-coder.com/html-form/javascript-form-validation.phtml[^] but you must remember to still do validation on the server as well!

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