Web Forms :: Buttons Not Working Having RequiredFieldValidator / RegularExpressionValidator Working

Feb 5, 2010

i do have a form. inside specific asp:textboxes are "secured" by RequiredFieldValidator and RegularExpressionValidator running. in another div-element i do have buttons, which are expected to load different pages of my website. the problem is: when i click on either of these buttons it is not working as my validation-controls are fired prior to the onclick-button-events.

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Web Forms :: RegularExpressionValidator Not Working With FileUpload

Jan 7, 2010


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Aug 31, 2010

My implementation is simple. I have a public static variable in a class called EmailHelper containing my regular expression as follows:


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Web Forms :: RequiredFieldValidator Not Working?

Mar 10, 2011

I create a new website in VS 2010 (VB .Net). I add a table, within it i add a textbox, a button and a RequiedFieldValidator. I set the RFV ControlTValidate property to the textbox. When i move(click or tab) away from the textbox, the RFV doesnt kick in the error message that i have set.

The RFV code is
<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server"
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Web Forms :: RegularExpressionValidator To Prevent Numeric Entry Not Working

Jan 9, 2011

I have a 'City' TextBox on one of my web pages but people from many European countries sometimes prefix the city name with the postcode instead of putting it in my dedicated 'Postcode/ZIP' TextBox. I have therefore just added a new RegularExpressionValidator to this TextBox. Its purpose is to prevent the user from entering any numeric characters but allow everything else. After browsing for a suitable regex (I am not a regex expert), I found the following code that was claimed to do what I want.


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I have the following code:



If the user submits this form, and they have not selected a option , I'd expect the validator to catch it but it's not.

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Oct 4, 2010

I've recently finished building one of my first websites (and CMS) in ASP.NET but have came across a problem where a RequiredFieldValidator isn't working as it should do? I originally created the admin page to not require the RequiredFieldValidator, but now that I do need it the page won't acknowledge it's there. I have even set the field in the database to not accept nulls, but the query will still insert a null value into the database (SQL Server 2008 Express).

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Jan 13, 2011

Does the RegularExpressionValidator always need a RequiredFieldValidator?I see that when there is no input the RegularExpressionValidator is not working. Correct?

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See my code below:


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I have a dropdown list, where when I select OPTION value a Textbox appears. The issue is that when, I submit directly the required filed errors gives me message for both ie for dropdown and Textbox. It should only give error for dropdown. 

Second thing, 

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see the code for your reference:

<asp:DropDownList ID="ddlGraduation" runat="server" CssClass="txtfld-popup_drp1">
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As the title says. What could be amiss?

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