如何基于Web.Config调用正则表达式验证器表达式 [英] How to Call Regular expression Validator Expression based on Web.Config

问题描述

可以从webconfig调用一个值到Regular Expression Validator Expression。



我试过这个

< asp：RegularExpressionValidator runat =serverID =RegularExpressionFileUploadControlToValidate =FileUploadControlErrorMessage =仅图像文件（。 jpg，.bmp，.png，.gif）SetFocusOnError =trueValidationExpression =<％RegularExpression％> /> 
 

代码落后

受保护的字符串RegularExpressionVal = /^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))+ （.jpeg | .JPEG | .gif | .GIF | .png | .PNG | .JPG | .jpg | .bitmap | .BITMAP）$ /

给出建议以获得解决方案。



先谢谢。

解决方案

）（。\\（\w [\w] *））+（JPEG |。.JPEG | .gif注意| .GIF | .PNG | .PNG | .JPG | .JPG | .bitmap | .BITMAP）

/

给出建议以获得解决方案。



先谢谢。

应该是......

 <   asp：RegularExpressionValidator     runat   =  server < span class =code-attribute>   ID   =  RegularExpressionFileUpload    ControlToValidate   =   FileUploadControl    ErrorMessage   = 仅限图像文件（.jpg ,. bmp，.png，.gif）    SetFocusOnError   =  true      ValidationExpression   ='  <％ #RegularExpressionVal％>'     /  >  

和代码中的变量...

  public   string  RegularExpressionVal =   / ^（（[a-zA-Z] :) | （\\ {2} \w +）\ 

Hi,
It is possible to Call a value from webconfig to Regular Expression Validator Expression.

I had tried this

<asp:RegularExpressionValidator runat="server" ID="RegularExpressionFileUpload" ControlToValidate="FileUploadControl" ErrorMessage="Image Files Only (.jpg, .bmp, .png, .gif)" SetFocusOnError="true"  ValidationExpression=<%RegularExpression %> />

code behind

Protected String RegularExpressionVal="/^(([a-zA-Z]:)|(\\{2}\w+)\$?)(\\(\w[\w].*))+(.jpeg|.JPEG|.gif|.GIF|.png|.PNG|.JPG|.jpg|.bitmap|.BITMAP)$/"

Give Suggestion to get a solution.

Thanks in Advance.

解决方案

?)(\\(\w[\w].*))+(.jpeg|.JPEG|.gif|.GIF|.png|.PNG|.JPG|.jpg|.bitmap|.BITMAP)

/"

Give Suggestion to get a solution.

Thanks in Advance.

That should be like...

<asp:RegularExpressionValidator runat="server" ID="RegularExpressionFileUpload" ControlToValidate="FileUploadControl" ErrorMessage="Image Files Only (.jpg, .bmp, .png, .gif)" SetFocusOnError="true"  ValidationExpression='<%#RegularExpressionVal %>' />

And the variable in code behind...

public string RegularExpressionVal="/^(([a-zA-Z]:)|(\\{2}\w+)\

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