Javascript Code samples

Overview
To share sample code with all that I have leaned while working in .net

1) To Check/Un-check all checbox in a grid

function checkUncheck(chkBox)
{
var frm = document.forms(0);
var ctl = form.elements[chkBox];
if(null != ctl)
{
for(i=0;i



2) To assign ENTER key to a command button/Image Button

The default button should be server side asp.net control and its onClick event will be fired when this function is called.

function onKeyDown(defaultButton)
{
if(event.keyCode==13)
{
with(event)
{
cancelBubble = true;
returnValue=false;
}
document.getElementById(defaultButton).focus();
document.getElementByID(defaultButton).click();
}
}


calling from aspx page:
call on Body tag onkeydown="onKeyDown('BUTTON ID HERE');"

3) Show/Hide Div on page

function showHide(show_hide)
{
var ctlDiv = document.getElementById('divID');
if(null != ctlDiv)
{
var divStyle = ctlDiv.Style;
style.display=show_hide;
}
else
alert ('control not found');
}


calling from aspx page:

on button1 : onclick="showHide('block');" ---to show div
on button2 : onclick="showHide('none');" ---to hide div

Hey!!! can u see me.. i m now visible