Two-Way Binging in TreeView

[Thomas Riml]

Is there an example how to Two-Way bind a EjsTreeView so that the "Expanded" value gets also set from den UI.

[Kanagambigai Murugan]

Hi Thomas, 

Good day to you. 

You can achieve this requirement by using ExpandedNodes property of treeview. But, currently we have known issues while updating the ExpandedNodes value when it is changed via UI. We have logged a bug report on it. We will fix and include the fix in our upcoming patch release which is expected to be rolled out on or before 25^th Oct, 2019. We appreciate your patience until then. 

You can track the status of this via the following link 

https://www.syncfusion.com/feedback/9489/expandednodes-values-is-not-get-updated-while-expanding-a-node-via-ui 

Please let us know if you have any queries. 

Regards, 

Kanagambigai M. 

[Thomas Riml]

Hi Kanagambigai,

thanks for the response - this makes sense.

Was trying around and never got any changes when i expanded it with UI.

Nice to hear that there is a fix on the way.

Thanks a lot.

regards

Thomas

[Kanagambigai Murugan]

Hi Thomas, 

Thanks for the update. 

We will update you once the fix is included and our patch release is rolled out. 

Regards, 

Kanagambigai M. 

[Kanagambigai Murugan]

Hi Thomas, 

 

Thanks for your patience.  

 

We are glad to inform that our latest(17.3.0.21-beta) NuGet package release has been rolled out and the issue with updating the ExpandedNodes property value while it is interacting via UI has been resolved in this version. We have prepared a sample for your reference. 

 

Sample: https://www.syncfusion.com/downloads/support/forum/148248/ze/ExpandedNodes-1437454723  

 

Kindly check the above sample and let us know if you have any queries.  

 

Regards,  

Kanagambigai M.  

[Thomas Riml]

Hi,

thanks for the update - was trying the update and its still the same for me.

Same on the example you linked. ExpandedNodes are always null.

The bound Array and tree.ExpandedNodes are always null.

Was using .net core 3.1 and Syncfusion.Blazor 17.3.0.21-beta

regards

thomas

[Muthukrishnan Kandasamy]

Hi Thomas, 

 

Thanks for contacting Syncfusion support. 

 

We have checked your query that treeview expandednodes always null. The expandednodes property working fine in our end, could you please check the below video? 

 

Video link: https://www.syncfusion.com/downloads/support/directtrac/general/ze/ScreenCapture_11-4-2019_12.25.25_PM-879703094.zip 

 

If still you are facing the same problem, could you please ensure the following things. 

 

1.     You can access the TreeView component properties and methods. 

2.     In application level, you are modifying the expanded node values as null 

  

 

Regards, 

Muthukrishnan K