MVC check box Select all to add to the database method

<li><input onclick= "SelectAll (this); type=" checkbox "Name=" Controlall "id=" Controlall "/><label> Select All </label></li>

<li><input name= "ItemName" type= "checkbox" Value= "@item. ProjectID "/><label> @item. Name</label></li>

function SelectAll (obj) {

var status = $ (obj). Prop ("checked");

alert (status);

var checklist = Document.getelementsbyname ("ItemName");

if (document.getElementById ("Controlall"). Checked) {

Myconfirm ("Are you sure you want to assign all the items?" ", "");

$ ("#confirmBtnDetermine"). Click (function () {

var projectid = "";

for (var i = 0; i < checklist.length; i++) {

if (checklist[i].checked = = 0) {

checklist[i].checked = 1;

ProjectID + = "," +checklist[i].value;

}                     }

alert (ProjectID);

$.ajax ({

Type: "POST",

URL: ' @Url. Action ("Alladdeditsubmit", "Permission") ',

DataType: "JSON",

Data: {projectid:projectid, employeeId: ' @ViewBag. EmployeeId ', status:status},

Success:function (data) {

if (data. Result) {

Myalert (data. Message, "");

} else {

Myalert (data. Message, "");

}

}

});

})

}

else {

Myconfirm ("OK to cancel all project permissions?"). ", "");

$ ("#confirmBtnDetermine"). Click (function () {

var projectid = "";

for (var j = 0; J < Checklist.length; J + +) {

checklist[j].checked = 0;

ProjectID + = "," + checklist[j].value;

}

$.ajax ({

Type: "POST",

URL: ' @Url. Action ("Alladdeditsubmit", "Permission") ',

DataType: "JSON",

Data: {projectid:projectid, employeeId: ' @ViewBag. EmployeeId ', status:status},

Success:function (data) {

if (data. Result) {

Myalert (data. Message, "");

} else {

Myalert (data. Message, "");

}                         }                     });

}); }         }

MVC check box Select all to add to the database method