TreeGridColumn is not a known element

[Kadam, Suresh B. (WTIC 535) CWR]

Hi Team,

I am trying to use TreeGrid in my application. Registered both Syncfusion.Ej and Syncfusion.Ej.Web in Web.config under assemblies. Registered both assemblies on the page I am trying to use TreeGrid. But when I declare control in page. I am getting error "TreeGridColumn is not a known element".

Please suggest how to get columns for TreeGrid.

Thanks,

Suresh.

[Jayakumar Duraisamy]

Hi Suresh, 

Thanks for contacting Syncfusion support. 

We have analyzed your reported issue and it is cause due to missing of “Syncfusion.Javascript.Web” namespace from the “Syncfusion.EJ.Web & Syncfusion.EJ”. Hence, we should add these namespace under controls in web.config file. 

Please refer following code snippet, 

<pages> 

      <namespaces> 

        <add namespace="System.Web.Optimization"/> 

      </namespaces> 

      <controls> 

        <add assembly="Microsoft.AspNet.Web.Optimization.WebForms" namespace="Microsoft.AspNet.Web.Optimization.WebForms" tagPrefix="webopt"/> 

        <add namespace="Syncfusion.JavaScript.Web" assembly="Syncfusion.EJ.Web, Version=15.2451.0.46, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89" tagPrefix="ej"/> 

        <add namespace="Syncfusion.JavaScript.Web" assembly="Syncfusion.EJ, Version=15.2451.0.46, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89" tagPrefix="ej"/> 

        <add namespace="Syncfusion.JavaScript.Models" assembly="Syncfusion.EJ, Version=15.2451.0.46, Culture=neutral, PublicKeyToken=3d67ed1f87d44c89" tagPrefix="ej"/> 

      </controls> 

    </pages> 

We have also prepared a sample for your reference. Please find the sample location as below, 

Sample: http://www.syncfusion.com/downloads/support/directtrac/general/ze/TreeGridSample_ASP.net-1243032698 

If the given solution doesn’t resolve your reported issue then please share your application, it will be helpful for us to serve you better. 

Regards, 

Jayakumar D 

[Kadam, Suresh B. (WTIC 535) CWR]

Hi Jayakumar,

Thank you very much. The issue has been resolved with your suggestion.

Regards,

Suresh Kadam.

[Jayakumar Duraisamy]

Hi Kadam, 

We are glad that your issue has been resolved. Please let us know if you need any other assistance. 

Regards, 

Jayakumar D