If interest exists, I will add that later on, including its quick filter options.Īnother note: The library also contains some searchboxes (for DataGridView/ Treeview and bindingsource in general. When a column is used for grouping, it is added to the group panel.
However, the context menu is a bit too integrated in the library and its custom ORM to quickly add here. Data in DataGrid can be grouped by one column or by several. One of the things still missing here is a quick grouping context menu item, which sets the grouping on the column where the right click took place and is the way grouping is used most in the applications I've used so far. The class library is an extract from a larger control library. The snippet above would produce something like: grouper.DisplayGroup += grouper_DisplayGroup void grouper_DisplayGroup( object sender, GroupDisplayEventArgs e)Į.BackColor = (e.Group.GroupIndex % 2) = 0 ? Color.Orange : Color.LightBlue Į.Header = ", grp: " + e.Group.GroupIndex Į.DisplayValue = " Value is " + e.DisplayValue Į.Summary = " contains " + e.Group.Count + " rows" End users can tap group rows to expand and collapse groups.
The DisplayGroup event can be used to further customize whatever has to be shown: When data is grouped, the grid displays group rows to separate groups of data rows. And a DisplayGroup event which is fired whenever one of the grouping rows is being painted. The component exposes a GroupingChanged event to catch when the grouping was changed or removed. default sort order for the groups is ascending, // you can change that in the options as well (ascending, descending or none) if you don't want the grouped column name to be repeated in the headers: First we need sample data to load into DataGrid, let's have a Class called Employee which is having the following properties.
Datagridview group rows how to#
Group Sorting: This is a column index that identifies how to sort rows within groups to. Base Row Colour: This adds a colour to identify base rows. This does not do any re-ordering at this point but this is something you could implement based on your requirements. Crating WPF Application Project Fire up Visual Studio 2008 and Create a WPF Application and name the project as GroupingDataGridWPF. Moving rows around to reorder in a datagridview is possible and tricky. if you don't want the (rowcount) to be shown in the headers: In this article we will see how to have Grouped rows in DataGrid in WPF. to collapse all loaded rows: (the difference with setting the option above, // is that after choosing a new grouping (or on a reload), the new groups would expand. If (args.RowIndex < 1 || args.ColumnIndex < 0)Ī = AdvancedCellBorderStyle.// to start with all rows collapsed on a (re)load or // when the group is changed you can set the option startcollapsed: Ignore column and row headers and first row (currCell.Value != null & prevCell.Value != null &Ĭ() = ()))ĭataGridViewAdvancedCellBorderStyle.None Private bool IsRepeatedCellValue(int rowIndex, int colIndex) If (IsRepeatedCellValue(args.RowIndex, args.ColumnIndex)) Protected override void OnCellFormatting(ĭataGridViewCellFormattingEventArgs args)
The unmentioned idea is a class extending the DataGridView class.
Datagridview group rows full#
To supplement the (chosen) answer, here's the full code.