如何验证ASP.Net TextBox应该允许带三个小数位的负或正十进制值？
[英]How to validate a ASP.Net TextBox which should allow negative or positive decimal value with three decimal places?
问题描述
I have a textbox which should allow user to enter only positive or negative decimal number with three decimal places. 
我有一个文本框，应允许用户仅输入带三个小数位的正或负十进制数。 For Example: 73.345 or -2345.345 or -32.34. 例如：73.345或-2345.345或-32.34。 something like that. 这样的事情。 How to set the validation for this? 如何为此设置验证？
Whether validation is by either using Validation Controls or by JavaScript. 验证是通过使用验证控件还是通过JavaScript。 Any suggestions please. 有任何建议请。
1 个解决方案
解决方案1
4 已采纳 2011-10-15 06:07:29
I would use a RegularExpressionValidator to do the work for you. 我将使用RegularExpressionValidator为您完成这项工作。 Your regular expression, assuming the decimal point and digits immediately following are options, is then: 假设紧随其后的小数点和数字为正则表达式，则为：
-?\d+(\.\d{1,3})?
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