SASS Theme Builder
You can try in this example the column menu functionality of the ASP.NET Core Grid by Telerik.
If you use the grid
ColumnMenu(true) method, the gridview will display the column menu represented by three dots in the ASP.NET Core DataGrid header cells. The column menu allows the user to show and hide columns as well as filter and sort them (if filtering and sorting are enabled).
More about the Telerik Grid for ASP.NET Core