how this problem is resolved

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i have two drop down list in one i have hours and second one i have minutes
i call function to bind data within this drop down list is "onclick"

but problem is that when by mistake i click on dropdown list twice it add item twice in datalist twice which is not acceptable by me

i want to restrict to add data if i m click on dropdown many time

code for my program

code for drop down

SQL

<select id="hourselect" size="1" onclick="loadhourselector(this);"></select>
                           <select id="minuteselect" size="1" onclick="loadminuteselector(this);"></select>

fuction to add data

C#

function loadhourselector(element)
       {
                           for (var i = 0; i <= 23; i++) {
                   node = document.createElement("Option");
                   textnode = document.createTextNode(i);
                   node.appendChild(textnode);
                   //document.getElementsById("hourselect").appendChild(node);
                   element.appendChild(node);
               }

       }

       function loadminuteselector(element) {
           for (var i = 0; i <= 59; i++) {
               node = document.createElement("Option");
               textnode = document.createTextNode(i);
               node.appendChild(textnode);
               //document.getElementsById("hourselect").appendChild(node);
               element.appendChild(node);
           }
       }

Posted 4-Sep-14 20:25pm

Member 10891595

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ChintanShukla 5-Sep-14 4:20am

You can clear drop down before binding.

1 solution

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Hemant Singh Rautela · Answer 1 · 2014-09-04T21:57:00

Hi..

Juse Use it as :

HTML

<script>
function loadhourselector(element)
       {
                           for (var i = 0; i <= 23; i++) {
                   node = document.createElement("Option");
                   textnode = document.createTextNode(i);
                   node.appendChild(textnode);
                   //document.getElementsById("hourselect").appendChild(node);
                   element.appendChild(node);
               }
 
       }
 
       function loadminuteselector(element) {
           for (var i = 0; i <= 59; i++) {
               node = document.createElement("Option");
               textnode = document.createTextNode(i);
               node.appendChild(textnode);
               //document.getElementsById("hourselect").appendChild(node);
               element.appendChild(node);
           }
       }
</script>
<body onload="loadhourselector(hourselect); loadminuteselector(minuteselect);">
<select id="hourselect" size="1"></select>
<select id="minuteselect" size="1"></select></body>

Enjoy ... :-)
Hemant Singh My Blog[^]