Grid DropDownList and ServerFiltering

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DropDownList Grid
Edgar81
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Edgar81 asked on 02 Aug 2021, 07:38 AM

Scenario - I'm Yasen Petrov and I have to create groups of Bulgarian football players (with a variable number of players). The number of players is huge, so I have to use server filtering. I already have the name of the groups, but no player has been assigned to them. I have to be able to add the players, move them up or down in the list, remove them if needed.

Each player has a Guid and a Name. Some examples:

{d912f311-5c6a-450b-886e-8b4effbd6828, Dimitar Berbatov}
{ec621b1e-3a13-4a8c-bcad-78eddae91752, Borislav Mihaylov}
{440eefce-c4c3-44d5-9320-f07fa84d5997, Krasimir Balakov}

When pressing Save, the list of Guids must be sent to the server.

I think a batch editing grid with a GridEditMode.PopUp mode should do the trick. It will have a single column (Name).

I use this DropDownList in another view:

@(Html.Kendo().DropDownListFor( m => m.PlayerId ).MinLength( 3).EnforceMinLength(true).Delay(500).OptionLabel( "Search by player name" )
                                   .DataTextField( "Name").DataValueField( "Id" ).Filter( FilterType.Contains).AutoBind(false)
                                   .DataSource(source => {
                                      source.Read(read =>
                                      {
                                         read.Action( "SearchPlayer", "PlayerGroups" ).Data( "additionalData" ).Type( HttpVerbs.Post);
                                      }).ServerFiltering(true);
                                   }))


How would I go about doing this? I looked for examples of EditorTemplateName, but I haven't been able to find something useful for my case.

Could anyone provide some guidance? Thank you!

   

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Anton Mironov
Telerik team
answered on 04 Aug 2021, 02:32 PM

Hello Edgar81,

Thank you for the details provided.

In order to achieve the desired behavior, I would recommend using the Editing functionality of a Custom Editor.

The following demo is representing the implementation and behavior of "DropDownListFor" Editor and ClientTemplate for the "Category" field. The Category field is a Model with properties "CategoryID" and "CategoryName" (similar to your scenario). Do not forget to use the UIHint annotation in your ViewModel:

Give a try to the approach above and let me know if further assistance is needed.

Kind Regards,
Anton Mironov
Progress Telerik

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Edgar81
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Anton Mironov
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