System.NullReferenceException: 'Object reference not set to an instance of an object.'

Question

Not able to display Movie Name in View

Answer 1

Hi @Aleem Ahmed ,

You can refer the following screenshot, since in the HttpGet method, we didn't create a Movie instance to the returned model, in the view page, when we display the movie name it will show the null reference exception.

You can check your HttpGet method, make sure the return data contains the Movie value.

Besides, you can also check the Movie is null when display the Movie. Add a ? at the end of the Movie, code like this:

    @foreach (var item in Model.ShoppingCart.ShoppingCartItems) {  
            <tr>  
                <td>  
                    @Html.DisplayFor(modelItem => item.Id)  
                </td>  
                <td>  
                    @Html.DisplayFor(modelItem => item.Amount)  
                </td>  
                <td>  
                    @item.Movie?.MovieName  
                </td>  
                <td>  
                    @Html.DisplayFor(modelItem => item.ShoppingCartId)  
                </td>  
                <td>  
                    @Html.ActionLink("Edit", "Edit", new { /* id=item.PrimaryKey */ }) |  
                    @Html.ActionLink("Details", "Details", new { /* id=item.PrimaryKey */ }) |  
                    @Html.ActionLink("Delete", "Delete", new { /* id=item.PrimaryKey */ })  
                </td>  
            </tr>  
    }  

In this scenario, when the Movie is null, it will not throw the Null reference exception, the result like this:

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Best regards,
Dillion