Invalid column in MVC

Exception Details: System.Data.SqlClient.SqlException: Invalid column name 'EvaluationHeaderId'.

Solution is here:
put this code to your class as navigation property in my case i need put this code to "Hotel class"

[ForeignKey("HotelId")]
public virtual EvaluationHeader EvaluationHeaders { get; set; }

How to type only numbers in MVC textbox

1. In the step one you have to download or call CDN of jquery.min.js

<script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.5.1.min.js" type="text/javascript"></script>

2. Add textbox in the view by using html helper 

            @Html.TextBox("Textbox1")
     
3. And then code the script like this

<script type="text/javascript">

             $(document).ready(function () {
            $("#Textbox1").keydown(function (event) {
                   if (event.shiftKey) {
                          event.preventDefault();
                  }
         if (event.keyCode == 46 || event.keyCode == 8) {
                 }
        else {
                     if (event.keyCode < 95) {
                          if (event.keyCode < 48 || event.keyCode > 57) {
                                  event.preventDefault();
                         }
                     }
                    else {
                               if (event.keyCode < 96 || event.keyCode > 105) {
                                event.preventDefault();
                              }
                     }
                 }
           });
     });

 </script>

code is 100% work and fine because I have experimented above codes

thank you
Happy coding...!