How To Set Validation Fro Dropdownlist If I Bind The Values From Databse And Ajax Externder Calender....

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I have set validation for DropdownList....Here Im binding the values from Database....How to set validation for This dropDown And Calendar Extender using Ajax contol

Posted 11-May-14 20:04pm

phmani469

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 12-May-14 2:37am

What validation? Not clear. Where is the issue exactly?

phmani469 12-May-14 4:16am

How to set validation for DropdownList Control' Here Im binding the dropdownList values from Database.........

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 12-May-14 4:17am

What validation you need to implement?

phmani469 12-May-14 4:19am

If value not selected ...then show the message value is required

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 12-May-14 4:29am

That is very easy... Attach one onchange JavaScript event handler for the DropDownList and inside that see what value is selected and validate.

phmani469 12-May-14 4:33am

can u attach an sample program please ....Im new to .Net

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 12-May-14 7:11am

I guess you have rejected my answer by mistake after accepting it.
In that case, please accept and up-vote.

Thanks,
Tadit

2 solutions

Solution 1

XML

<script type="text/javascript">



    function IsDropdownChanged() {

        if ($(".DropdownListControlID").change()) {
            alert("Dropdown Changed");
        }

        else {
            alert("Dropdown Not Changed");
        }
    }

</script>

Note: - DropdownListControlID Must be client side ID, get it by using developer tool (F12 on Browser).

Posted 11-May-14 22:58pm

Santosh K. Tripathi

Updated 11-May-14 22:59pm

v2

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Accepted Answer · 2014-05-11T23:34:00

Solution 2

You can use RequiredFieldValidator.
Example - Re: required field validator for dropdownlist[^]

OR

Validate the DropDownList using JavaScript function.
Example - drop down list validation for asp.net[^]

Posted 11-May-14 23:34pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)