Add column to tree grid not working correctly

[Quang]

Here is my github project: 

[email protected]:quangnv13/syncfusion-dynamic-tree-grid.git

user: user1

password: 123456

url for test this problem: http://localhost:4200/task/test

Here is my logic add column

In template i load column with this code:

<e-columns>

<e-column

*ngFor="let item of columns"

[field]="item.field"

[headerText]="item.headerText"

></e-column>

</e-columns>

After i added column and view render a few seconds it's through an error like below.

[Quang]

No one can help me?

[Priyadarshan Selvan]

Hi Quang,

Thanks for contacting syncfusion support.

We checked your shared sample, but the data was not loading properly in your shared sample.

Please refer the below screenshot:

Please share us the following details.

1. Share a sample which populate the data or if we missed anything on sample then guide to us to run.
2. whether above mentioned screenshot is the issue ?

The provided information will be helpful to provide you response as early as possible. 

Regards,

Priyadarshan Selvan