[Solved] Multiple DropDownList MVVM with same DataSource

[Neeraj]

Hello, have Multiple DropDownList MVVM with same/shared DataSource. The problem is when selected a value from the earlier selected values get reset. 
        I tried having multiple  as that even  works. I also tried in this https://docs.telerik.com/kendo-ui/controls/editors/multiselect/troubleshoot/troubleshooting#selected-item-is-lost-when-bound-to-shared-datasource 
         That also   Here is my code.

Inside Template:

<script id="SegmentSelectionGridRowTemplate" type="text/x-kendo-template" class="AirPricingDivScript">
    <tr>
        <td>
            <label>#= data.SegmentDetailsToDisplay #</label>

        </td>
        <td>
            <input  data-role="dropdownlist" data-value-primitive="true" data-text-field="AirRequestToDisplay" data-value-field="ReservationRequestItemId"
                   data-bind="value: ReservationRequestItemID, source: SegList"  />
        </td>
    </tr>
</script>

 

<div data-role="grid" id="SegmentSelectionGrid" class="margin-top" style="margin-left: 0px;" data-bind="source: AirPNRViewModel.Segments" data-toolbar="<div><i class='fa fa-plane' aria-hidden='true'></i> <b>Flight Segment(s)</b> </div>"
             data-columns='[
                         { "field": "PNRSegment", "title": "PNR Segment","width":"220"},
                     {"field": "RequestRoute","title":"Request Route","width":"80"}]'
             data-row-template="SegmentSelectionGridRowTemplate"></div>

 

Script:

var viewModel = kendo.observable({
SegList :[{"ReservationRequestItemId":1716,"AirRequestToDisplay":"SIN-LAD 03-06-2018"},{"ReservationRequestItemId":1716,"AirRequestToDisplay":"LAD-SIN 13-06-2018"},{"ReservationRequestItemId":1716,"AirRequestToDisplay":"SIN-BKK 02-06-2018"}],
AirPNRViewModel:{
 Segments: [
{"ReservationRequestItemID":0,"SegmentDetailsToDisplay":"TG  410"},
{"ReservationRequestItemID":0,"SegmentDetailsToDisplay":"ET  619"}

 ]

 

[Bozhidar]

Hello,

I tried the described setup and it seems to work as expected on my end. Could you specify what the exact issue is? Perhaps share a screen capture of the problem?

Regards,
Bozhidar
Progress Telerik

[Neeraj]

Hello, Please see attached file for . Open file in that zip.  The Exact issue is when select value from dropdown other values get as shown in  attached.  I also tried giving name to data-value-field but result is same

[Neeraj]

Here is attachment

[Bozhidar]

Hello,

I've isolated a sample in our online dojo, and it seems to be working as expected. Could you give it a go, and see if it's working on your side as well:
https://dojo.telerik.com/ujiGukEv


Regards,
Bozhidar
Progress Telerik

[Luciano Kaesemodel]

Hello,
I have a similar problem. In a grid, I'm trying to put two dropdownlist columns with the same data source, when I select a value in one dropdown it's replicating in the other. follows Dojo with example:
https://dojo.telerik.com/@machado/OvIqAjuD

thank you.

[Bozhidar]

Hi,

The problem here is that in both templates the value of the DropDownList is bound to the Id field of the Product. To fix this just include a separate template for the second column, bound to the same datasource, but with the correct value-binding. Here's the modified and working dojo sample:
https://dojo.telerik.com/AlUGEzeb

Regards,
Bozhidar
Progress Telerik

[Luciano Kaesemodel]

Thank you Bozhidar, problem solved.