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i have 20 checkboxes in usercontrol ... i wanna do whole coding in user control ...

how to show msg box if user forgot to check asp.net checkbox control on button click .. ?

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  • Reference from your previous post: if user haven't checked any check box then on button click you will get vCheckedCBCount = 0;then in JavaScript u can show alert message easily. Commented Jan 27, 2011 at 12:44

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You should provide a CustomValidator for every Checkbox which validates on client- and serverside if the Checkbox is checked. http://www.joe-stevens.com/2009/08/12/using-the-customvalidators-clientvalidationfunction/

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No i have 25 checkboxes in usercontrol and button1 i want if user forgot to check any of the checkboxes ( means user have to select atleast 1 checkbox to proceed on button click)
Do you have these checkboxes in any container like panel or table?
ya i have checkboxes in div and then table
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Create a public method on the user control that returns a boolean indicating if the data entry in the control is correct. Call that method from your page on the button click event. If data entry is valid, continue processing;else show an error message.

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Can u have a coding example for this ?
I will post one shortly for you

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