如何在asp.net中通过JavaScript动态选中/取消选中html复选框

Question

I know that several questions about this topic have been asked, but I was unable to find an answer for my case.

I have gridview. In that Checkbox.

Here, I want to do functionality like When I check on exp_id 1515001101 then others all exp_id 1515001101 get automatically check.

     function checkUncheckHeaderCheckBoxforSubmit(obj)
 {var checkboxCell;var expidCell;

          var grid = document.getElementById("<%=grdViewLocalConvence.ClientID %>"); 
for (i = 1; i < grid.rows.length - 2; i++)

    { for (i = 1; i < grid.rows.length - 2; i++) 
{ checkboxCell = grid.rows[i].cells[8];
           expidCell = grid.rows[i].cells[0];

          var exp_id = expidCell.innerText;
        for (j = 0; j < checkboxCell.childNodes.length; j++) 
    {if (checkboxCell.childNodes[j].type == "checkbox") 
    {  if (checkboxCell.childNodes[j].checked == true)
     { var exp_id = expidCell.innerText;  
                          GridVwHeaderChckbox.rows[i].cells[8].getElementsByTagName("INPUT")[0].checked = 
    exp_id.checked;
          }}}}

Please help me. Thanks.

Answer 1

try this

 $(".checkboxid").change(function() {// the first checking checkbox
        if(this.checked) {
            $('.checkboxid').attr('checked', true);// here put change checkbox details that are checked automatically
        }
    });

If you want to fix the state of these check boxes remains same then best idea is save data to db and retrieve each time the page load happends