Christian Pliso Christian Pliso - 1 month ago 8
ASP.NET (C#) Question

ForeignKey displays a textbox instead of dropdownlist

Here is my issue :

I have two project with similar code to display a dropdownlist inside a kendogrid. In the first project all works fine, in the second project i got a textbox dipslaying instead of a dropdown. I've searched around telerik but nothing could resolve my issue. I think something is missing in my project to make this work fine. Or something is blocking it ! But can't find .. Hope you could help me !

Here is my grid :

@(Html.Kendo().Grid<DisplayUniteMultiple>()
.Name("GridDisplayUniteMultiple")
.ToolBar(t => t.Create().Text("Ajouter un couple Valeur/ Unite"))
.Columns(columns =>
{
columns.Bound(c => c.id).Hidden(true);
columns.Bound(c => c.Valeur);
columns.ForeignKey(c => c.Unite, unitesDeConversion, "Value", "Text").Title("Unité").Width(200);
})
.Editable(editable => editable.Mode(GridEditMode.InCell).Enabled(true))
.Events(e => e.Edit("onGridChange"))
.DataSource(datasource => datasource
.Ajax()
.Update(builder => builder.Url(""))
.PageSize(50)
.Batch(false)
.Model(model =>
{
model.Id(uniteMultiple => uniteMultiple.id);
model.Field(uniteMultiple => uniteMultiple.Valeur);
model.Field(uniteMultiple => uniteMultiple.Unite);
})
.ServerOperation(true)
))

Answer

You might missing to add the editor template in your project.

Create a new folder named EditorTemplates in ../Views/Shared/ directory, if there is not already. Then create new file named GridForeignKey.cshtml in that folder and copy below code into it, save and try again.

@model object

@(
  Html.Kendo().DropDownListFor(m => m)        
     .BindTo((SelectList)ViewData[ViewData.TemplateInfo.GetFullHtmlFieldName("") + "_Data"])
)
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