How to Call Regular expression Validator Expression based on Web.Config

Question

0.00/5 (No votes)

See more:

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.

Posted 16-May-14 4:25am

Bala Ballzz

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 1 · 2014-05-16T07:51:00

Solution 1

That should be like...

ASP.NET

<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...

C#

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

But I don't understand this approach, because you can directly define this in aspx page.

Posted 16-May-14 7:51am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Comments

[no name] 19-May-14 3:16am

<
But I don't understand this approach, because you can directly define this in aspx
>

<br><br>
Because the Expression can be change during run time.thats why i want to get a expression from webconfig.
FYI
this did not working.

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 19-May-14 3:28am

Go to the Source HTML in Browser and locate this validator. See what is the expression bind with it.