I'm trying to locking cell in the tree-list , Ii cant lock that think perfectly, some space is still in there between cells.how can I solve that issue.

Hello, Jesil,

Is it possible to showcase a screenshot of the issue?

This will help us better understand which is the extra space added to the cell and work on that to fix it.

Thank you in advance for the cooperation on this.

Regards,
Stefan
Progress Telerik

code below:

https://stackblitz.com/edit/react-treelocking?file=index.js

Hello,

Thank you for your example.

I have a couple of suggestions based on it:

1) Please pass the required className and styles to the custom cells. They are part of the props:

const DemoCell = (props) => <Demo {...props} />;

class Demo extends Component {
  render() {
    return (
      <td
        className={this.props.className}
        style={this.props.style}
      >demo</td>
    );
  }
}

Regards,
Stefan
Progress Telerik

https://stackblitz.com/edit/react-treelocking?file=index.js

hi Stefan :(

while adding filter along with locking cell, filterable area is not locking as expected.   

Hello, Jesil,

Thank you for reporting this.

I can confirm that this is an issue with the current version of KendoReact TreeList.

I created an issue in our GitHub repository and forwarded it to our developers for fixing. You can track its progress at:

https://github.com/telerik/kendo-react/issues/501

For now, there is no available workaround, if one is found it will be added in the GitHub issue for reference.

Additionally, I updated your Telerik points for bringing this to our attention.

Regards,
Stefan
Progress Telerik