manipulate columns on lower hierarchy

[Vincent Lo]

Hi,

I have got 2 hierarchies of datatable formatted in an ExpandGrid strucutre in BoundDataGrid. I can set properties such as header text of the root hierarchy by,

this.gridDataBoundGrid1.Binder.GridBoundColumns

however how can i manipulate on the dataColumns of the lower hierarchy? can i only show the headers of the lower hierarchy but not those in the root hierachy?

Thanks for help

[Administrator]

Hi Vincent, You can access the child levels with the GridHierarchyLevel class. Here is some code that sets the child and grand child''s columns header text and the celltype(style property).

GridHierarchyLevel hlParentToChild = this.gridDataBoundGrid3.Binder.AddRelation("ParentToChild");

GridHierarchyLevel hlChildToGrandChild = this.gridDataBoundGrid3.Binder.AddRelation("ChildToGrandChild");

GridHierarchyLevel hlParent = this.gridDataBoundGrid3.Binder.RootHierarchyLevel;

hlParentToChild.InternalColumns["childID"].HeaderText = "NewChilID";
hlParentToChild.InternalColumns["childID"].StyleInfo.CellType = "ComboBox";

			
hlChildToGrandChild.InternalColumns["GrandChildID"].HeaderText = "NewGrandChildID";
hlChildToGrandChild.InternalColumns["GrandChildID"].StyleInfo.CellType = "ComboBox";

You can hide the child level header''s by setting the showheaders property.

hlParentToChild.ShowHeaders = true;
hlChildToGrandChild.ShowHeaders = true;

But to hide the parent header, you can just hide that particular header row.

this.gridDataBoundGrid3.Model.Rows.Hidden[0] = true;

Attached is a sample showing this implementation. Regards, Jay N. TripleMasterDetailGrid1_8668.zip