client validation on click of checkbox in a nested repeater: javascript,asp.net 2.0,c#,vb.net, internet explorer 6+, firefox

client validation on click of checkbox in a nested repeater

I have a repeater which shows current month records from database based upon month and year selection from dropdownlist at the top of page. This repeater has 3 textboxes per row (date of month) and a nested repeater. Nested repeater contains checkbox and is populated from database. I want to make sure using javascript and custom validators that at least one checkbox in each row should be selected.

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Hello,
Got it, I have created a sample javascript for you, just paste it as a .html file and run locally and try pressing the submit button without selecting checkboxes in each row, it will give error and tell you that you have to select these many checkboxes atleast i.e. once per each row.

This is html and javascript , but looking at the code and html I have produced, you can easily port it in your repeater, just make sure you keep ids properly and change variables accordingly in this script.

Hope it solved your problem.

Happy Javascripting!

<html>
<body>
 
<form id="form1" >
<div id="_main" style="width:100px;">
 
<div id="div1" style="background-color:Gray;">
	<input type="CHECKBOX" id="chk_1" value="This...">
	<input type="CHECKBOX" id="chk_2" value="This...">
	<input type="CHECKBOX" id="chk_3" value="This...">
</div>
Group 2
 
<div id="div2" style="background-color:Gray;">
	<input type="CHECKBOX" id="chk_1" value="This...">
	<input type="CHECKBOX" id="chk_2" value="This...">
	<input type="CHECKBOX" id="chk_3" value="This...">
</div>
 
 
<input type="hidden" id="hdn1" value="div1,div2">
</div>
 
<input type="submit" value="submit" onclick="checkform()" >
</form>
</body>
</html>
 
<script type="text/javascript">
 
function checkform()
{
  var v_main  = document.getElementById("_main");
  var v_sub = v_main.getElementsByTagName('div');
  
  var i=0;
  var faultCounter=0;
  while(i<v_sub.length)
  {	
	var v_sub2 = v_sub[i].getElementsByTagName('input');
	var innerChecked=0;
        j=0;
	while(j<v_sub2.length)
	{
		if(v_sub2[j].checked==true)
		{
			innerChecked=1;
		}	
		j++;
	}
	
	if(innerChecked==0) //i.e. no checkbox is checked
	{
	  faultCounter = faultCounter + 1;
	}
	i++;
  }
 
  if (faultCounter>0)
  {
    alert("Atleast select one checkbox frome each row, " + faultCounter + " checkbox needs to be selected yet.");
  }
  else
  {
	alert("All O.K.");
  }
}
 
 
</script>

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client validation on click of checkbox in a nested repeater

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javascript,asp.net 2.0,c#,vb.net

internet explorer 6+, firefox

JavaScript Frameworks

JScript

.NET Framework 2.x

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