cascading combobox work with ASMX

[Gary]

hi, 

because our team still relies on the traditional web service (ASMX) to get data. can anyone kindly advise how to integrate the cascading combo with ASMX service?

my code doesn't seem to work, found many 'undefined' in the dropdown list. 

View

var categories = $("#cmbWidgetCat1").kendoComboBox({
        dataTextField: "Display",
        dataValueField: "Value",
        dataSource: {
            type: "json",
            transport: {
                read: wsPath + "/GetTabItems"
            }
        }
    }).data("kendoComboBox");

ASMX

[WebMethod(EnableSession = true)]
        [ScriptMethod(ResponseFormat = ResponseFormat.Json, UseHttpGet = true)]
        public WidgetComboItem[] GetTabItems()
        {
            return new List<WidgetComboItem>
                {
                    new WidgetComboItem {Display = "System Info", Value = "1"},
                    new WidgetComboItem {Display = "Datasets", Value = "2"},
                    new WidgetComboItem {Display = "Charts", Value = "3"},
                }.ToArray();
        }

Thanks in advance!

[Atanas Korchev]

Hello,

 Your transport requires additional configuration in order to work with ASMX web services:

           transport: {

                read: {
                   url: wsPath + "/GetTabItems",
                   dataType: "json",
                   contentType: "application/json; charset=utf-8",
                }

            }

More info about requesting ASMX services with jQuery (used by the Kendo DataSource) is available in the linked blog post.

Regards,
Atanas Korchev
Telerik