Hi I have added a date column using
         // Add a new column for the date
                GridTemplateColumn gridTemplateColumn1 = new GridTemplateColumn();
                gridTemplateColumn1.HeaderText = "Creation Date";
                gridTemplateColumn1.SortExpression = "Date";
                gridTemplateColumn1.UniqueName = "Date";
                gridTemplateColumn1.DataField = "Date";
                RadFileExplorer1.Grid.Columns.Add(gridTemplateColumn1);
But i cant see how to populate the column.

