CODEWITHSUNDEEP
c#ajaxasp.net-mvcmodal-dialogcrud
VMG
VMG

Reputation: 135

ASP.NET MVC - edit in modal

I'm trying to make an edit in a modal. 

@foreach (var item in Model.DataList)
{
    <tr>
        <td>@Html.DisplayFor(modelItem => item.ID)</td>
        <td>@Html.DisplayFor(modelItem => item.ProjectName)</td>
        <td>@Html.DisplayFor(modelItem => item.Attachment.Name)</td>
        <td><a href="#" onclick="editData(@item.ID,'EditModal')" class="btn btn-primary">Edit</a></td>               

        <input type="hidden" value="@item.ID | @item.ProjectName | @item.Material.MaterialName " id="@item.ID" />
    </tr>
}

And this is working without @item.Material.MaterialName. With this model I got this error:

Error: Object reference not set to an instance of an object in @Html.DisplayFor(modelItem => item.Attachment.Name)

Can anyone tell me why and how to fix it?

I tried:

<td>
    @if (item.Attachment != null)
    {
        @Html.DisplayFor(modelItem => item.Attachment.FileName)
    }
</td>

and:

<input type="hidden" value="@item.ID | @item.ProjectName | @item.Material.MaterialName | @item.Attachment.Name " id="@item.ID" />

Upvotes: 1

Views: 166

Answers (1)

bhaskar shelar
bhaskar shelar

Reputation: 28

I saw your comment at "And this is working without @item.Material.MaterialName" above line indicate that your model which you bind it from action method having material as null value so you are trying to access NUll values data & which is going to give you error which you mentioned below to that line. try using following things wherever you want to use the properties which might be null @item.Material?.MaterialName & also make sure you are declaring properties are nullable in parent class .

Upvotes: 1

Related Questions