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jQuery data() function does not get kendogrid reference with multicolumncombobox on page

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MultiColumnComboBox
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Miroslav
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Miroslav asked on 04 Jun 2020, 01:29 PM

Hello,

I have a weird problem. I want to start using the multicolumncombobox. But when I have multicolumncombobox and kendogrid on one page, calling data("kendoGrid") on the grid DIV will return undefined. If i remove the multicombo, it returns object of the kendogrid. This is a simplified situation, in our project I get errors from kendo JS library, when I need to open a dialog with kendogrid or when I use maskedtextbox. Because both need to reference some object using jQuery data() function. Am I doing something wrong?

This is my test code, button returns kendogrid object, but only with multicombo commented out:

using System;
using System.Configuration;
using System.Web;
using Telerik.Web.UI;
 
public partial class TEST1 : System.Web.UI.Page
{
    protected void Page_Init(object sender, EventArgs e)
    {
        System.Web.UI.Page currentPage = (System.Web.UI.Page)HttpContext.Current.CurrentHandler;
        RadScriptManager RadScriptManager = (RadScriptManager)currentPage.FindControl("RadScriptManagerMain");
        RadScriptManager.Scripts.Add(new System.Web.UI.ScriptReference((String.Format("~/js/jquery.min.js?{0}", ConfigurationManager.AppSettings["Application_Version"]))));
        RadScriptManager.Scripts.Add(new System.Web.UI.ScriptReference((String.Format("~/js/jszip.min.js?{0}", ConfigurationManager.AppSettings["Application_Version"]))));
        RadScriptManager.Scripts.Add(new System.Web.UI.ScriptReference((String.Format("~/js/kendo.all.min.js?{0}", ConfigurationManager.AppSettings["Application_Version"]))));
    }
}
<%@ Page Title="TEST1" Language="C#" AutoEventWireup="true"
    CodeFile="TEST1.aspx.cs" Inherits="TEST1" %>
<!DOCTYPE html>
<html>
    <head runat="server">
        <title>TEST1</title>
    </head>
    <body>
        <telerik:RadScriptManager runat="server" EnableScriptCombine="false" ID="RadScriptManagerMain"
            LoadScriptsBeforeUI="true" OutputCompression="AutoDetect" AsyncPostBackTimeout="36000" ScriptMode="Release">
        </telerik:RadScriptManager>
        <div id="multicombo">
            <telerik:RadMultiColumnComboBox ID="RadMultiColumnComboBox1" runat="server"
                GroupByField="Country" Filter="Contains"
                DropDownWidth="500" Height="400" Width="100%" Placeholder="select from the dropdown or type"
                DataTextField="ContactName" DataValueField="CustomerID" MinLength="3" EnforceMinLength="false">
                <WebServiceSettings Select-ContentType="JSON" ServiceType="OData"
                    Select-Url="https://demos.telerik.com/kendo-ui/service/Northwind.svc/Customers">
                </WebServiceSettings>
                <ColumnsCollection>
                    <telerik:MultiColumnComboBoxColumn Field="CustomerID" Title="ID" />
                    <telerik:MultiColumnComboBoxColumn Field="ContactName" Title="Name" />
                </ColumnsCollection>
            </telerik:RadMultiColumnComboBox>
        </div>
        <br />
        <div id="kendogrid"></div>
        <br />
        <button onclick="getdata()">Call data("kendoGrid) on grid</button>
        <script>
            $(document).ready(function () {
                $("#kendogrid").kendoGrid({
                    columns: [{
                        field: "FirstName",
                        title: "First Name"
                    },
                    {
                        field: "LastName",
                        title: "Last Name"
                    }],
                    dataSource: {
                        data: [{
                            FirstName: "Joe",
                            LastName: "Smith"
                        },
                        {
                            FirstName: "Jane",
                            LastName: "Smith"
                        }]
                    }
                });
            });
 
            function getdata() {
                alert($("#kendogrid").data("kendoGrid"));
            }
        </script>
    </body>
</html>

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Miroslav
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answered on 05 Jun 2020, 03:35 AM
Iā€™m using UI + Kendo version 2020.1.219, jQuery 1.12.4 from Kendo distribution.
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Miroslav
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answered on 08 Jun 2020, 12:55 PM
Tested today with 2020.2.513 (2020 R2), same problem.
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Peter Milchev
Telerik team
answered on 09 Jun 2020, 12:42 PM

Hello Miroslav,

I have tested the provided markup and the only thing I have changed was the ScriptManager to load the scripts declared in the markup. Please adjust your ScriptManager declaration as demonstrated below and also use the jQuery embedded in the Telerik UI for ASP.NET AJAX instead of loading an additional one.

<telerik:RadScriptManager runat="server" EnableScriptCombine="false" ID="RadScriptManagerMain"
    LoadScriptsBeforeUI="true" OutputCompression="AutoDetect" AsyncPostBackTimeout="36000" ScriptMode="Release">
    <Scripts>
        <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js" />
        <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js" />
        <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js" />
        <asp:ScriptReference Path="/js/jszip.min.js" />
        <asp:ScriptReference Path="/js/kendo.all.min.js" />
    </Scripts>
</telerik:RadScriptManager>

Regards,
Peter Milchev
Progress Telerik

Progress is here for your business, like always. Read more about the measures we are taking to ensure business continuity and help fight the COVID-19 pandemic.
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Miroslav
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answered on 09 Jun 2020, 01:34 PM
Hello Peter, thank you for your help. I tested the solution with embedded jQuery without external one and also with embedded jQuery disabled (EnableEmbeddedjQuery="false") with included external one. Both work. šŸ‘šŸ‘
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Peter Milchev
Telerik team
answered on 09 Jun 2020, 02:29 PM

I am happy to hear that, Miroslav,

Please keep in mind that the embedded jQuery version is a custom one that is based on 1.12.4 but has backport fixes for the known vulnerabilities for this version:

Regards,
Peter Milchev
Progress Telerik

Progress is here for your business, like always. Read more about the measures we are taking to ensure business continuity and help fight the COVID-19 pandemic.
Our thoughts here at Progress are with those affected by the outbreak.
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Miroslav
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answered on 10 Jun 2020, 06:25 AM
Thank you, good to know that. Has the jQuery 1.12.4 distributed with Kendo UI 2020 R1/R2 the same security backports?
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Peter Milchev
Telerik team
answered on 12 Jun 2020, 01:06 PM

Hello Miroslav,

The jQuery version in the Kendo CDN is the original 1.12.4 due to backward compatibility.

Generally, when you are using Kendo UI on the page only, you can load the latest supported jQuery version as explained in the article I have shared above. For example, Kendo UI R2 2020 is compatible with jQuery 3.5.1 version that introduced some breaking changes and security fixes.

Regards,
Peter Milchev
Progress Telerik

Progress is here for your business, like always. Read more about the measures we are taking to ensure business continuity and help fight the COVID-19 pandemic.
Our thoughts here at Progress are with those affected by the outbreak.
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Miroslav
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answered on 15 Jun 2020, 05:42 AM
Thanks for the explanation.
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MultiColumnComboBox
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Peter Milchev
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