Assuming the problem is not in GetCheckBoxVal any of the following statements is causing your issue:
var Coord_Lat = $("#<%=TB_Coord_Lat_Edit.ClientID%>")[0].value;
var Coord_Long = $("#<%=TB_Coord_Long_Edit.ClientID%>")[0].value;
var Price = $("#<%=TB_Price_Edit.ClientID%>")[0].value;
var Phone_Number = $('#<%=TB_Phone_Number_Edit.ClientID%>')[0].value;
Why? Because if the css selector given to jQuery returns no matches, the arrayarray will have zero elements, aka, its length will be 0. That does mean that even on element[0] there is nothing, its value is undefined. Trying to get a property or invoke a method on an undefined value gives you the exception you see.
As the suggested duplicate suggest you should guard against this situation. One possible way is to introduce a utility function:
// this gets the value property of an object and if object is undefined
// returns a default
function getValueOrDefault(someObject, reasonableDefault) {
return someObject === undefined ? reasonableDefault : someObject.value;
}
// your original function
function UpdateDetails1() {
// rest of your code
}
With that function in place your code becomes:
var Coord_Lat = getValueOrDefault($("#<%=TB_Coord_Lat_Edit.ClientID%>")[0], '0.0');
var Coord_Long = getValueOrDefault($("#<%=TB_Coord_Long_Edit.ClientID%>")[0], '0.0');
var Price = getValueOrDefault($("#<%=TB_Price_Edit.ClientID%>")[0],0);
var Phone_Number = getValueOrDefault($('#<%=TB_Phone_Number_Edit.ClientID%>')[0],'+1 010');
That should resolve the Uncaught type error. It is up to you to come up with reasonable defaults.
