The Tree Grid supports CRUD operations. This CRUD operations can be configured in Tree Grid using editSettings. Also, it has different modes to manipulate the datasource. The available modes are, Row Cell Dialog In this demo, Dialog mode is enabled for editing by defining editSettings.mode as dialog. You can start editing by double clicking a row or clicking on toolbar's Edit button, then the currently selected row will be shown on a dialog and you can change the row values and save edited data to the datasource. Injecting Module: Tree Grid component features are segregated into individual feature-wise modules. To use exporting feature, we need to inject EditService into the @NgModule.providers section. More information on the dialog editing can be found in documentation section