Web Forms :: To Add A Required Field Validator To A Text Box On Page?
Jan 11, 2010
I need to add a Required Field Validator to a text box on my page. When I add the validator the following happens when I run the page:
When I click the submit button the page doesn't submit because the page is invalid. No error message displays despite my having set the ErronMessage. When I click inside the text box that has the Validation, then the Required error message shows. When that textbox loses focus the error message goes away. The only way I can get the page to function correctly is if I create 2 Validators for the same text box. The first validator is set to have an ErrorMessage of "" and the second one is a regular error message.
I have used these before many upon many times and never experienced this. Below you will find the Source code.
[Code]....
This code is the only way I am able to get the validation to function correctly where the ErrorMessage displays when I leave the field blank. I appreciate any help on resolving this issue. I have deleted/re-added the validation control many times. This is the only page this type of error happens on.
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[Code]....
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[Code]....
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<asp:DropDownList ID="DDL2" runat="server" CssClass="DPCDDL">
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find my code below...
[Code]....
[Code]....
[Code]....
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[Code]....
My C# Code-
[Code]....
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[Code]....
the designer code is as below
[Code]....
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[Code]....
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[Code]....
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Line: 938
Error: Sys.WebForms.PageRequestManagerServerErrorException: Control 'rfvtxtCam1' referenced by the ControlToValidate property of 'rfvtxtCam1' cannot be validated.
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I am giving the mark up of my controls below:
[Code]....
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I want to apply styles on the message (i.e. Name field is required) display by the asp.net required field validator control.
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