Question

I’m returning quite a few rows on a view page. I’m wanting to show several tables, each being a subset of the full results. I have a foreach loop, and I’m wondering how I filter the results so “ResponseCode > 400” and “ExtFlag = 1”

@foreach (var res in Model.LinkCheckerResults)<br>
{
   <tr>
    <td>
        @Html.DisplayFor(model => res.SourceURL)<br>
    </td>
    <td>
        @Html.DisplayFor(model => res.TargetURL)
    </td>
    <td>
       @Html.DisplayFor(model => res.Response)
    </td>
</tr>
}

Many Thanks.

Answer 1

Assuming ResponseCode and ExtFlag are members of whatever LinkCheckerResults returns, you can do this as you normally would in a foreach loop in C#.

With LINQ:

@foreach (var res in Model.LinkCheckerResults
                   .Where(lcr => lcr.ResponseCode > 400 && lcr.ExtFlag == 1))
{
   <tr>
    <td>
    @Html.DisplayFor(model => res.SourceURL)<br>
    </td>
    <td>
    @Html.DisplayFor(model => res.TargetURL)
    </td>
    <td>
       @Html.DisplayFor(model => res.Response)
    </td>
</tr>
}

Or an if statement:

@foreach (var res in Model.LinkCheckerResults)<br>
{
   if (res.ResponseCode > 400 && res.ExtFlag == 1)
   {
   <tr>
    <td>
    @Html.DisplayFor(model => res.SourceURL)<br>
    </td>
    <td>
    @Html.DisplayFor(model => res.TargetURL)
    </td>
    <td>
       @Html.DisplayFor(model => res.Response)
    </td>
  </tr>
  }
}

Or (the true MVC way) provide the collection pre-filtered as a ViewData/ViewBag property.