Conditional Javascript function

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Dear Friends,

I am new to javascript rather very new and i have to run a javascript function on the basis of what a function (server level code) at server side returns (true or false) but i am not able to do so.

for e.g. the method is checking that whether the selected item from the grid doesn't exists in the database then the user should get a prompt that "this item doesn't exists.Do you want to continue?".

Now this message box should only get popup when the above condition i.e., item doesn't exists in database is true else not.

Please help me.

Thanks

Varun Sareen

Posted 14-Feb-11 20:48pm

Varun Sareen

Updated 14-Feb-11 21:02pm

v2

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Monjurul Habib 15-Feb-11 3:05am

need more clarification / share you code to help you out.

Varun Sareen 4-Mar-11 4:15am

I have a server level method which gets value i.e., TRUE, depending upon which i have to run the javascript code for the confirmBox and if the value is FALSE, then no confirmbox :)

2 solutions

Solution 1

<script type="text/javascript">
function checkThis(x)
{
    if( x == number)
    {
        return true;
    }
    else
        return false;
}


</script>

and after that you can call it from the body or where ever you want.

Posted 14-Feb-11 20:58pm

shadi_abushaar

Comments

Varun Sareen 15-Feb-11 2:59am

kindly elaborate :)

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Sandeep Mewara · Accepted Answer · 2011-02-14T21:29:00

Try using Page.RegisterClientScriptBlock Method [^] OR Page.RegisterStartupScript Method[^]

Using them, you can inject the scripts into a page from server side and based on certain condition (and specific to page.)

For samples on how to use it: How to Use RegisterClientScriptBlock & RegisterStartupScript[^]
Sample 2[^]