如何验证文本框小数点前1位和小数点后2位？ [英] How to validate for a textbox 1 digit before decimal point and two digits after decimal point?

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.

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