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AjaxDropDown Parent property inside EditorTemplate

Hello, How could I set the "parent" property in a AjaxDropDown for correctly identifying her father in a EditorTemplate? In a view of creating a vehicle I have the following form

@using ( Html.BeginForm ("Create", "Vehicles" ) )
{
  @Html.EditorFor (m = > m.VehicleEditor )
}

Inside VehicleEditor.cshtml I have two AjaxDropDown

 1. @ ( Html.Awe (). AjaxDropdownFor (m = > m.MakeId )
 2. @ ( Html.Awe (). AjaxDropdownFor (m = > m.ModelId .) Parent (m = > m.MakeId )

The Id (1) is VehicleEditor.MakeId , however the "Parent " property set is simply " makeId " thus rendering the javascript is: " ... data : {" keys " : [ " parent "]," waltz " : [" MakeId "] } ... " and should be " ... data : {" keys " : [ " parent "]," waltz " : [" VehicleEditor_MakeId "] } ... " To fix it I have the following option, but consider it a bad practice because any change in location or model would force me to change the view : @ ( Html.Awe (). AjaxDropdownFor (m = > m.ModelId .) Parent ( " VehicleEditor.MakeId " ) The same thing happens if the parent adds the " Sufix " property. It is possible to do different? thanks

Albert

asked at 20 Mar 2014

could you please isolate this in a small solution (using trial version) upload it somewhere and post here the link

could you please isolate this in a small solution (using trial version) upload it somewhere and post here the link
at 20 Mar 2014 Omu
https://onedrive.live.com/redir?resid=2843AEB5CB4D7C9B!63232&authkey=!ABK2qdYJ9xbCyMs&ithint=folder%2c.rar

https://onedrive.live.com/redir?resid=2843AEB5CB4D7C9B!63232&authkey=!ABK2qdYJ9xbCyMs&ithint=folder%252c.rar
at 20 Mar 2014 Albert
please see my edited answer

please see my edited answer
at 21 Mar 2014 Omu

Answers

thank you for the demo please change this line in MealEditor.cshtml @(Html.Awe().AjaxDropdownFor(m => m.Meal).Url(Url.Action("GetItems", "MealAjaxDropdown")).Parent(Html.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName("Category"))) for the moment, after the next release your initial code will work as well or you can use this helper to get the name: public static class Helpers { public static string GetName<T, TReturn>(this HtmlHelper<T> h, Expression<Func<T, TReturn>> expression) { return h.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName(ExpressionHelper.GetExpressionText(expression)); } } and use it like this: .Parent(Html.GetName(o => o.Category))
thank you for the demo please change this line in MealEditor.cshtml
```
@(Html.Awe().AjaxDropdownFor(m => m.Meal).Url(Url.Action("GetItems", "MealAjaxDropdown")).Parent(Html.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName("Category")))
```
for the moment, after the next release your initial code will work as well or you can use this helper to get the name:
```
public static class Helpers
{
    public static string GetName<T, TReturn>(this HtmlHelper<T> h, Expression<Func<T, TReturn>> expression)
    {
        return h.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName(ExpressionHelper.GetExpressionText(expression));
    }
}
```
and use it like this:
```
.Parent(Html.GetName(o => o.Category))
```
Omu

answered at 21 Mar 2014
- Perfect! Thanks!
  
  Perfect! Thanks!
  at 21 Mar 2014 Albert

I created a "Helper" to show the category name dynamically:

 public static string GetPropertyName <TObject> (Expression <Func <TObject, objects>> exp) 
         {
             if (exp.Body is MemberExpression) 
             {
                 return ((MemberExpression)exp.Body).Member.Name; 
             } 
           
            var op = ((UnaryExpression) exp.Body).Operand; 
            return ((MemberExpression) op).Member.Name; 
         }

Used:

Helper.GetPropertyName <ModelEditor> (m => m.Category)

All together:

@(Html.Awe().AjaxDropdownFor(m => m.Meal).Parent(Html.ViewContext.ViewData.TemplateInfo.GetFullHtmlFieldName(Helper.GetPropertyName<MealEditor>(m=>m.Category)))

Thanks!

Albert

answered at 21 Mar 2014

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