金额的正则表达式（大于0）且不应为空 [英] Regular Expression for amount(that greater than 0 ) and should not be empty

问题描述

heyy ...





我想要一个整数的正则表达式（大于0），不应为空。



如果为空或大于0然后显示错误消息.....我尝试但无法找到两个表达式....任何想法???

解决方案

正则表达式不适合大于值 - 他们根本不知道数字，所以表达式变得相当笨拙：

 ^ 0 * [1-9] \d * 

你最好做这种验证在代码中，而不是作为正则表达式。

如果您使用Asp.net文本框，那么您可以使用RequiredFieldValidator和RegularExpressionValidators作为相同的文本框。输入值大于1的正则表达式为^ [1-9] *。

您的代码应如下所示：

 < span class =code-keyword><   asp：TextBox     ID   =  MyTextBox    runat   =  server  >  <   / asp：TextBox  >  
 <   asp：RegularExpressionValidator     ControlToValidate   =  MyTextBox    ID   =  regExVal     runat   =  server    ErrorMessage   = 提供超过1的值。    ValidationExpression   =  ^ [1-9] * < span class =code-keyword> /  >  
 <   asp：RequiredFieldValidator     ControlToValidate   =  MyTextBox    ID   =  reqVal    runat   = 服务器    ErrorMessage   = 提供一些价值。  /  >  

希望这会有所帮助。

heyy...


I want a Regular Expression for integer(that greater than 0 ) and should not be empty.

if empty or greater than 0 then show error msg..... .I tried but cannot find both expression together ....Any ideaa???

解决方案

Regular expressions are not good for "greater than" values - they don't know about numbers at all, so the expression becomes rather clumsy:

^0*[1-9]\d*

You would be better doing this kind of validation in code, rather than as a regex.

Hi, If you are doing it using Asp.net text box, then you can use RequiredFieldValidator and RegularExpressionValidators for the same text box. Regular Expression for input value more than 1 is "^[1-9]*".
You code should look like:

<asp:TextBox ID="MyTextBox" runat="server"></asp:TextBox>
        <asp:RegularExpressionValidator ControlToValidate="MyTextBox" ID="regExVal" runat="server" ErrorMessage="Provide value more than 1." ValidationExpression="^[1-9]*"/>
        <asp:RequiredFieldValidator ControlToValidate="MyTextBox" ID="reqVal" runat="server" ErrorMessage="Provide some value."/>

Hope this will help.

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