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Author

CheckBox Status

Ravi Kumar
Greenhorn

Joined: Apr 08, 2007
Posts: 9
Hi Everybody,


I have 2 diffrent check boxes i need to get the status of those checkboxes.

Here the below code

Javascript

function ClickRows(obj)
{
var i=0;
var chxbox1=document.getElementsByName("CheckBox1");
var chxbox2=document.getElementsByName("CheckBox2");

if (obj.checked==true)
{
chxbox1[i].checked=true;
chxbox2[i].checked=true;

}
else
{
chxbox1[i].checked=true;
chxbox2[i].checked=true;
}


JSP

"& lt;"INPUT type="CHECKBOX" name="CheckBox1"& lt;"%=i%"& lt;""
value="Y" "Rows_Click(this)" "& lt;"

"& lt;"INPUT type="CHECKBOX" name="CheckBox2"& lt;"%=i%"& lt;""
value="Y" "Rows_Click(this)"

It's giving as

"undefined is null not an object"

Please help me out.

Thanks in advance.
Ben Souther
Sheriff

Joined: Dec 11, 2004
Posts: 13410

kumar,

We're pleased to have you here with us in the JSP forum, but there
are a few rules that need to be followed, and one is that proper names are
required. Please take a look at the
JavaRanch Naming Policy and
adjust your display name to match it.

In particular, your display name must be a first and a last name separated by a space character, and must not be obviously fictitious.

You can change it here

Welcome to JavaRanch!


Java API J2EE API Servlet Spec JSP Spec How to ask a question... Simple Servlet Examples jsonf
Ravi Kumar
Greenhorn

Joined: Apr 08, 2007
Posts: 9
Hi

Has per javaranch policy i have changed the name convention.
can you please help me out for my above problem.

thanks
Eric Pascarello
author
Rancher

Joined: Nov 08, 2001
Posts: 15376
    
    6
The function in the onclick is different than the function name you are showing us.

Eric
Ravi Kumar
Greenhorn

Joined: Apr 08, 2007
Posts: 9
Hi,

iam really Sorry about that mistake it should be clickRows instead of Rows_click.

Thanks
Parthasarathy balakrishnan
Greenhorn

Joined: Apr 20, 2007
Posts: 14
Originally posted by kumar:
Hi Everybody,


I have 2 diffrent check boxes i need to get the status of those checkboxes.

Here the below code

Javascript

function ClickRows(obj)
{
var i=0;
var chxbox1=document.getElementsByName("CheckBox1");
var chxbox2=document.getElementsByName("CheckBox2");

if (obj.checked==true)
{
chxbox1[i].checked=true;
chxbox2[i].checked=true;

}
else
{
chxbox1[i].checked=true;
chxbox2[i].checked=true;
}


JSP

"& lt;"INPUT type="CHECKBOX" name="CheckBox1"& lt;"%=i%"& lt;""
value="Y" "Rows_Click(this)" "& lt;"

"& lt;"INPUT type="CHECKBOX" name="CheckBox2"& lt;"%=i%"& lt;""
value="Y" "Rows_Click(this)"

It's giving as

"undefined is null not an object"

Please help me out.

Thanks in advance.


-----------------------------------

I have R&D over your code and reached the result:

code:



function ClickRows(obj)
{
alert(" the value of the check box is"+obj.checked);//this will return the status of the check box
alert(" the value of the check box is"+obj.name);//this will give the name of the check box
var i=0;
//var chxbox1=document.getElementsByName("CheckBox1");
//var chxbox2=document.getElementsByName("CheckBox2");
var chxbox1=chxbox1[0].checked;
var chxbox2=chxbox2[0].checked;
alert(" The value of first checkBox"+chxbox1+"The value of the second ChecKBox"+chxbox2);
alert("the value of the first checkbox "+chxbox1[0].checked+" And the checkbox2"+chxbox2[0].checked);
if (obj.checked==true)
{
chxbox1[i].checked=true;
chxbox2[i].checked=true;

}
else
{
chxbox1[i].checked=true;
chxbox2[i].checked=true;
}
}


I have not attached the HTML CODE because gave some error in javaranch


by


Thanks and Regards,<br />-------------------<br />Parthasarathy Balakrishnan,<br />Bangalore.
 
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subject: CheckBox Status