Passing current DropDown as parameter

[Ezequiel]

 

I have a EditorTemplate which is:

@model string

@(this.Html.Kendo().DropDownList()
    .Name(this.ViewData.TemplateInfo.GetFullHtmlFieldName(string.Empty))
    .Value(this.Model)
    .HtmlAttributes(new { style = "width: 220px;"})
    .OptionLabel("Select)
    .DataValueField("Value")
    .DataTextField("Text")
        .DataSource(ds => ds.Read(read => read.Action("GetList", "Combo").Data("getAdditionalParam")))
)

I want to get this dropdown in my function:

function getAdditionalParam(dropDown){
//do stuff with dropDown

//

 return { additionParam: 1 }
}

 

Is there anyway to pass the object itself as parameter?

 

Thanks,

Ezequiel

[Georgi Krustev]

Hello Ezequiel,

Basically, you will need to get an instance of the widget in the getAdditionalParam function. The code should look something like that:

function getAdditionalParam(e){
var id = "#@(ViewData.TemplateInfo.GetFullHtmlFieldName(string.Empty))";
var widget = $(id).data("kendoDropDownList");

//get widget value
var value = widget.value();

//get the selected data item
var dataItem = widget.dataItem();

 return { additionParam: 1, item: dataItem }
}

If you would like to pass an object then you can just add it to the object. Note that ASP.NET MVC is responsible for parsing this object and you need to configure the Action method correctly in order to receive it correctly populated.

Regards,
Georgi Krustev
Telerik