textchanged event for page controls

jeevan mummadi

17y7.3k.NET

hi...
i placed 10 text box, 10 dropdown list and one update button in page form.
in page load i disable update button,whenever i textchnage for any above control that time
my update button will enable.
give me any sample code and ideas to solve this one..
i dont want to write code for every control textchnge event...
plz..help me

3 Replies

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jeevan mummadi17y ago
thank you jay....
Jay17y ago
I have created control like this





I have used following javascript function to Hide or Show the button based on the textboxes value

function fnenable()
         {
                var obj1=document.getElementById ("textbox1").value;
                var obj2=document.getElementById ("textbox2").value;
                var obj3=document.getElementById ("textbox3").value;
            if (obj1=='' && obj2=='' && obj3=='')
            {
                document.getElementById("btnsave").style.display="none";
            }
            else
            {
                document.getElementById("btnsave").style.display="block";
            }
        }
nilesh deokar17y ago
write above code on top of your page and add OnTextChanged="EnableClearControl();" to your text box and drop down list