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count checked checkbox in gridview

sunnil seth asked:

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i having 6 column in mt gridview,
among those three (3) columns are checkbox
Two column is for cheking status
one column is for deleting multiple records from dridview
ihave written code for this

function ConfirmEdit() {
           document.getElementById("<%= lblErrorMsg.ClientID %>").innerHTML = "";
           var count = document.getElementById("<%=hfCount1.ClientID %>").value;
           var gv = document.getElementById("<%=gvItemCategory.ClientID%>");
           var chk = gv.getElementsByTagName("input");
           for (var i = 0; i < chk.length; i++) {
               if (chk[i].checked && chk[i].id.indexOf("chkHeader") == -1) {
           if (count == 0) {
               document.getElementById("<%= lbl.ClientID %>").innerHTML = "No record selected to edit.";
               return false;
           else {
               if (count > 1) {
                   document.getElementById("<%= lbl.ClientID %>").innerHTML = "Multiple edit is not allowed.";
                   return false;

while chking the input i am getting all the checkbox in three columns.
its creating problem for other operation on the status column.

Any one can tell me that how i can get the check box of that particular column

ie. if i am having 10 row in my gridview then the

var chk = gv.getElementsByTagName("input"); must have value 10 not 30 as i am getting.


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