Refresh DropDownList İnside Kendo Grid

[Ömer]

Hello,

I use dropdownlist as an editortemplate for my Kendo Grid like this:

columns.Bound(c => c.Test.Text).Width("5%").EditorTemplateName("Test").EditorViewData(new { data= ViewData["data"] }); 

and this is my dropdownlist that is in the editortemplates folder:

@(Html.Kendo().DropDownList()
      .Name("Test")
           .DataTextField("Text")
           .DataValueField("Text")
           .AutoBind(true)
           .DataSource(c =>
               {
                   c.Read(k => k.Action("GetMethod", "Controller", new { data = ViewData["data"] }));
               })
)

that works fine. However, there is a problem about refreshing datasource of this dropdownlist. Because i can not find any way to access dropdownlist and refreshing its datasource. How can i do this?, how can i trigger read action of dropdownlist?

            

[Vladimir Iliev]

Hi,

From the provided information it's not clear for us what is the exact scenario that you have, however you can use the "Edit" event of the Grid (for example) to access the DropDownList by it's "id" attribute and refresh it's DataSource. Please consider the following example:

function onEdit(e) {
    var dropDownList = e.container.find("#Test").data("kendoDropDownList");
    //or e.container.find("[name=Test]").data("kendoDropDownList")
    dropDownList.dataSource.read();
}

Regards,
Vladimir Iliev
Telerik

 

 

[Raymond E]

I wanted to see if it was possible to only reload the rows that were updated instead of reloading all of the rows in the grid. I'm passing back the rows that were updated from the controller.

[Vladimir Iliev]

Hi,

Refreshing only the DataSource of the DropDownLists for already updated records is not supported out of the box and it's up to the developer to implement this feature (for example saving the updated rows IDs to global variable which to be used inside the "Edit" event of the Grid).

Regards,
Vladimir Iliev
Telerik