I have a cancel_complaints page in ASP in which list of complaints r coming (2 records come at a time means page navigation).In that page some information is coming in table and i have given a checkbox in one Table column according to records in database table rows are generated.That is multiple checkbox are generated with same name.I have put a validation that if user has selecetd none of checkbox alert message comes.Problem is that when there are more than one row validation is going fine but when only one row remains validation does not goes fine.Below i am giving javascript function that i have used for validation.----------function------------function validatefield(){ var j=0; var lenvar=document.cancel_complaints.chksel.length; //alert(eval(lenvar)); for (i = 0; i < lenvar; i++) {if(document.cancel_complaints.chksel[i].checked) { j=j+1; } } if(j==0) { alert("Please select atleast one checkbox"); return false; } else { return true; document.cancel_complaints.submit(); }}----------in case of one row(i.e only one record i.e only one checkbox) the value of lenvar is undefined and if there are more than one row the value of lenvar comes= (no of checkboxes)i am unable to understand why there is problwm in counting in total no of checkboxes.if somebody has solution then plz tell me.thanks in advance

kshivani
Profile Answers by kshivani Questions by kshivani
May 12th, 2006
1
2589

Showing Answers 1 - 1 of 1 Answers

rajamuna
Profile Answers by rajamuna

Jul 26th, 2006

Try the folowing Javascript Function :
---------------------
function validatefield()
{
var j=0;
var lenvar = 0;
var lenEle = document.cancel_complaints.elements.length;
for (i = 0; i < lenEle; i++)
{
if((document.cancel_complaints.elements[i].type)=="checkbox")
{
lenvar = lenvar + 1;
}
}

for (i = 0; i < lenvar; i++)
{
if(lenvar==1)
{
  if(document.cancel_complaints.chksel.checked)
  {
   j=j+1;
  }
}
else if(document.cancel_complaints.chksel[i].checked)
{
  j=j+1;
}
}
if(j==0)
{
alert("Please select atleast one checkbox");
return false;
}
else
{
return true;
document.cancel_complaints.submit();
}
}
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