KryptonOutlookGrid - TreeGridMode

Tree-grid mode

Figure 1 - An example of an expanded node

As treegrid mode requires algorithm with recursive parts, the code is a bit slower. You may want maximum performance if you do not need a tree mode and that's why there is a FillMode property which is set to GroupsOnly by default. To active the tree mode you need to set it to GroupsAndNodes. Even with tree mode enabled there is no need to have sublevels rows, allowing flexibility for your application.

The tree mode is symbolized by the the +/- symbol located on cells in one column of the grid. This must column must be a KryptonDataGridViewTreeTextColumn.

You can also choose to display or not lines between nodes OutlookGrid1.ShowLines = true;

To fill the grid with sublevels there are extra steps :

OutlookGridRow row2 = new OutlookGridRow(); 
row2.CreateCells(OutlookGrid1, new object[] { ... }

Then add the newly created row to its parent one by using :

row.Nodes.Add(row2); ((KryptonDataGridViewTreeTextCell)row2.Cells[1]).UpdateStyle(); //Important : after adding to the parent node, do the same for the parent row
listOfRows.Add(row); ((KryptonDataGridViewTreeTextCell)row.Cells[1]).UpdateStyle(); //Important : after adding to the rows list. Those steps are here to get a proper indentation (padding) of the text in the TreeTextCells