Basically this scenario is not supported out-of-the-box and you should implement it using custom code. For example you can create custom PopUp editor template with grid which Read action sends additional data provided by JavaScript function in which you can render the edited row data using the following approach (please note the first row of the getCurrentParentId function):

Custom PopUp editor:

For convenience I created small demo based on the above solution which you can use as a baseline and attached it to the current thread.

Hi Vladimir,

I didn't understand the first sentence in your reply.Could you let me know if Kendo supports to create a popup with grid inside it that includes delete,Add and Edit functionality for that particular grid?.

Hi,

I have faced one complex situation when I have created the hierarchy grid with edit form popup as shown in attached figure.here I have create method for the whole form.But may I know how can I get the values entered in the fields of the grid inside popup along with other stand alone fields and update that batch successfully.is there any sample or suggestions you can give to achieve.Same should be applied to update as well.

Can I create seperate popup editors for create and edit,If so how should I do it and how can I achieve this in scenario likeshowing only create popup when model is new and viceversa How to handle this part.

Hi Manikanth,

I am attempting to do something similar here.  I have a child collection that I want to present for edit(along with some properties from the parent object) in a grid inside a popup editor based upon the parent object.

Similar to your sample, in my popup editor, I have my parent object(Equipment) as the @model and the child collection(EquipmentLighting) as the type specified on the grid definition.  I am getting an error as follows:

'The model item passed into the dictionary is of type 'SharedEntities.EquipmentLighting', but this dictionary requires a model item of type 'SharedEntities.Equipment'.'

Any thoughts?

Hello, John,

I tested the project that I shared here and edited the main item as well as the child items. I recorded a video so you can see my steps and let me know in case I have missed anything:

https://www.screencast.com/t/MgGO7XSXN

As for the private thread with Brian, I responded to him but I have not heard back from him so I am unsure if the response was helpful. Nonetheless, I will share it with you:

===========================================================

1) The Foreign Key column should have a default value

.Model(model =>
{
    model.Id(p => p.equipmentUid);
    model.Field(p => p.equipmentUid).Editable(false);
    model.Field(p => p.equipmentAttributeTypeUid).DefaultValue(1);   // some default value which is the correct type   
})

2) It is not necessary to declare the foreign key editor again in the popup template as the values are already available. You can decorate the model with the [UIHint("GridForeignKey")] which should be located in /Views/Shared/EditorTemplates and contain the following

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

3) The field equipmentLoc does not bind correctly to its value because the Name() does not match the property name. And this is valid for all the properties that should be edited. 

https://docs.telerik.com/aspnet-mvc/helpers/grid/templating/editor-templates

Either use:

DropDownListFor(m=>m.equipmentLoc)
 
//OR:
 
 the DropDownList()
.Name("equipmentLoc")

5) The grid in the popup, I cannot tell what the model properties are, however if any of them are complex, you should provide a DefaultValue() for each of them When a new record is created, the grid data source adds a model with these values to its data source so a new row can be added

https://demos.telerik.com/aspnet-mvc/grid/editing-custom

Regards,
Alex Hajigeorgieva
Progress Telerik