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Old November 7th, 2011, 02:22 PM
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Default How to put validation for check box?

Dear Imar Sir,
I am designing a service request form like feedback form of
project described in the book the only difference is that i would like to
put a checkbox for term and condtion which is required to check the vistor. I have tried
required field validator but it do not works with check box. Kindly help me.
Old November 7th, 2011, 06:14 PM
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You can use a custom validator and then do something like

args.IsValid = MyCheckbox.Checked;

Hope this helps,

Imar Spaanjaars
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Author of Beginning ASP.NET 4.5 : in C# and VB, Beginning ASP.NET Web Pages with WebMatrix
and Beginning ASP.NET 4 : in C# and VB.
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Old November 23rd, 2011, 12:56 AM
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if you want the checkbox to update the model via the binder, then you need a boolean value to bind to and name them properly. If Functionality object had bool Selected property then its:

@for(int i=0; i < Model.Functionality.Count; ++i)
to validate it depends on how you are doing your validation. if you are using unobtrusive validation, then you create a validation attribute, apply to the Selected property. then client side you add a client rule, register it to the adapters. see docs, or google for examples.
Old December 16th, 2011, 03:01 AM
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Default Re:

Originally Posted by Imar View Post
You can use a custom validator and then do something like

args.IsValid = MyCheckbox.Checked;

Hope this helps,


Thanks but i want validate 2 check box at time and forward one check box details to other box.

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