Question

I have tried using !Model.Any() it doesn’t work, since model has no extension Any. How to solve?
Here is my code snippet.

    @model MyModel.Work
    @if ( !Model.Any() )
    {
       <script type="text/javascript">
             alert("Model empty");
       </script>
    }
    else
    {
       <script type="text/javascript">
              alert("Model exists");
       </script>
    }

Answer 1

It sounds to me like you are instantiating the model, but want to check and see if it’s been populated.

My standard way of doing this is to create a bool property called Empty, only giving a get, and then return the check you need to see if no other properties have been set.

Say you have a Customer class as your model:

public class Customer
{
    public int CustomerId {get;set;}
    public string FirstName {get;set;}
    public string LastName {get;set;}
    public string Email {get;set;}

    public bool Empty
    {
        get { return (CustomerId == 0 && 
                      string.IsNullOrWhiteSpace(FirstName) &&
                      string.IsNullOrWhiteSpace(LastName) &&
                      string.IsNullOrWhiteSpace(Email));         
            }
    }
}

Now in your model, you simply call:

@model MyModel.Work
@if (Model.Empty)
{
   <script type="text/javascript">
         alert("Model empty");
   </script>
}
else
{
   <script type="text/javascript">
          alert("Model exists");
   </script>
}