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DYDeivaselvan Y Syncfusion Team October 15, 2018 06:09 PM UTC
Hi Jignesh,
Thank you for contacting Syncfusion support.
We have analyzed your query “To show ColumnChooser for nested tables” and you can achieve your requirement by passing child grid as parameter for ColumnChooserPopup as like below code snippet
//Child Grids will be available in DetailsViewDefinitions.
//So in order to show ColumnChooser, you must pass the child grid for which you want to show column chooser
//In DetailsViewDefinition[0] , 0 defines first level of grid.
ColumnChooserPopup childColumnChooser = new ColumnChooserPopup(this.sfDataGrid1.DetailsViewDefinitions[0].DataGrid);
childColumnChooser.Show();
Also, please find sample for the same from below link and let us know if this helps you.