如何验证号码 [英] how to validate number

问题描述

我想检查整个字符串是否为数字，还检查整个字符串是否有特殊字符.plz帮助我吗？

i want to check whole string is number or not and also check whole string has special character or not.plz help me?

推荐答案

我建​​议你使用 Regex [ ^ ] - Regex.IsMatch方法 [ ^ ]。



如需进一步了解，请参阅：

正则表达式语言 - 快速参考 [ ^ ]

正则表达式中的量词 [ ^ ]



示例模式：

http://www.regular-expressions.info/examples.html [ ^ ]

I would suggest you to use Regex[^] - Regex.IsMatch Method[^].

For further infromation, please, see:
Regular Expression Language - Quick Reference[^]
Quantifiers in Regular Expressions[^]

Example patterns:
http://www.regular-expressions.info/examples.html[^]

<asp:textbox id="VisitorContacttxt" runat="server" cssclass="TextBox" maxlength="10" xmlns:asp="#unknown"></asp:textbox>
<asp:filteredtextboxextender id="VisitorContacttxt_FilteredTextBoxExtender" runat="server" xmlns:asp="#unknown">
 FilterMode="ValidChars" FilterType="Numbers" TargetControlID="VisitorContacttxt">
</asp:filteredtextboxextender>

Use filteredtextboxextender for enter number or symbol

使用正则表达式验证器....

use Regular Expression validator....

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