MVC Html Helpers

View helper sample code

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@Html.DropDownListFor(model => model.OperatorValue, (List<SelectListItem>)ViewData["OperatorValue_SelectList"], new { @class = "form-control" })

Controller sample code, this can be in ‘Lookups.cs’ class

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public static List<SelectListItem> OperatorSelectList()
{
   var r = new List<SelectListItem>
   {
      new SelectListItem { Value = "", Text = "-- Please Select --" },
      new SelectListItem { Value = "*", Text = "*" },
      new SelectListItem { Value = "/", Text = "/" },
      new SelectListItem { Value = "+", Text = "+" },
      new SelectListItem { Value = "-", Text = "-" }
   };
   return r;
}

DisplayNameFor

Display from property that is a list of another class

Example:

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public class AddViewModel
{
   public double BaseRate { get; set; }
   public DateTime EffectiveFrom { get; set; }
   public List<HistoryViewModel> RatePrimeHistory { get; set; }
}

public class HistoryViewModel
{
   public double BaseRate { get; set; }
   public DateTime EffectiveFrom { get; set; }
}

To display the history data

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<table class="table">

<tr>
   <th>
      @{var dummy = Model.RatePrimeHistory.FirstOrDefault(); }
      @Html.DisplayNameFor(model => dummy.BaseRate)
   </th>
   <th>
      @Html.DisplayNameFor(model => dummy.EffectiveFrom)
   </th>
</tr>

@foreach (var item in Model.RatePrimeHistory)
{
<tr>
   <td>
      @Html.DisplayFor(modelItem => item.BaseRate)
   </td>
   <td>
      @Html.DisplayFor(modelItem => item.EffectiveFrom)
   </td>
</tr>
}

</table>

Calling IEnumerable overload of DisplayNameFor