Question

i have a form and a button a form:

<asp:Button ID="Button1" runat="server" Text="Button" OnClick="SubmitData"  />

i have a method in my c# program. the method is called SubmitData

however i would also like to run a javascript function on this button click as well. how do i do this?

here is my javascript function:

var selectedLanguages = new Array();
jQuery('#lstProblems option:selected').each(function() {
    selectedLanguages.push(jQuery(this).val());
});

i got it from here: jquery listbox return what user selected

how do i run it ? do i have to put it in <script></script> and do some_Function(etc…) ?

Answer 1

you should use the OnClientClick='myJsFunc();'

<asp:Button ID="Button1" runat="server" Text="Button" OnClick="SubmitData" OnClientClick="aaa()" /> 

<script type="text/javascript">

function aaa()
{
var selectedLanguages = new Array();
jQuery('#lstProblems option:selected').each(function() {
    selectedLanguages.push(jQuery(this).val());
});
}
</script>