如何验证文本框小数点前1位和小数点后2位？

本文介绍了如何验证文本框小数点前1位和小数点后2位？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我找到了一个来源，前面是6位数，后面是两位数，但我不知道如何更改 我尝试了什么： < asp：TextBox ID =txtraterunat =serveronkeypress =if（event.keyCode< 48 || event.keyCode> 57 ）event.returnValue = FALSE; MaxLength =9> < asp：RegularExpressionValidator runat =serverID =RegularExpressionValidator1 ValidationExpression =^ （（\d {5}）* |（[1-9] \d {0,5}））（\。\\\ {0,2}）？$ ControlToValidate =txtrateText =输入必须为123456.78格式。 显示=动态/>

解决方案

ControlToValidate =txtrateText =输入必须是123456.78格式。 显示=动态/>

开发不是一个在互联网上找到并粘贴它的过程进入你的应用程序：你应该考虑它并弄清楚它是如何工作的（或者更好地自己编写）。 在这种情况下，你不需要任何复杂的东西：

^ \\\\\\

会这样做。

I found a source where it is 6 digits before and two after but i do not know how to change What I have tried: <asp:TextBox ID="txtrate" runat="server" onkeypress="if(event.keyCode<48 || event.keyCode>57)event.returnValue=false;" MaxLength="9"> <asp:RegularExpressionValidator runat="server" ID="RegularExpressionValidator1" ValidationExpression="^((\d{5})*|([1-9]\d{0,5}))(\.\d{0,2})?$" ControlToValidate="txtrate" Text="Input must be 123456.78 format." Display="Dynamic" />

解决方案

" ControlToValidate="txtrate" Text="Input must be 123456.78 format." Display="Dynamic" />

Development isn't a process where you find something on the internet and paste it into your app: you are supposed to think about it and work out how it works (or better write it yourself). In this case, you don't need anything that complex:

^\d\.\d\d

Will do it.