Forums Ultimate UI for Windows Forms
Your Privacy Matters: We use our own and third-party cookies to improve your experience on our website. By continuing to use the website we understand that you accept their use. Cookie Policy
Close
Darrell
75
Hide GroupBy Row
posted

I have a set of data where there may be 1, 2 or 3 parts of a primary piece of data.  The user wants the 1,2 or 3 rows to be always grouped together, however they do not want a group by row (I've already shown them that).  I've also tried an hierarchical grid and they don't want that either, because they need to look at the grid at a glance and see everything.

They want something like this:

A1
A2
A3
B1
B2
C1
D1
D2

Now even when they click to sort any of the other columns of data, all the A's should stay together in a group.

I've been trying to figure this out for a while and I'm stumped!

Thanks in advance.

Parents
No Data
Reply
  • 1590
    posted

    Hi, sigtaupres.

    You should put away  OutlookGroupBy option:

    grid.DisplayLayout.ViewStyleBand = Infragistics.Win.UltraWinGrid.ViewStyleBand.OutlookGroupBy;

    And use  your own logic for grouping columns via creating a class and implement IGroupByEvaluator interface. This interface allows you to determine which rows belong in the same group and which don't. Then assign it to a column:

    GroupEvaluator eval = new GroupEvaluator();
    grid.DisplayLayout.Bands[0].Columns["MyColumn"].GroupByEvaluator = eval;

    In the next methods of GroupByEvaluator you can define your custom logic:

       public object GetGroupByValue(UltraGridGroupByRow groupByRow, UltraGridRow row)
            {
                return null; // place your own logic
            }

            public bool DoesGroupContainRow(UltraGridGroupByRow groupByRow, UltraGridRow row)
            {
                return false; //place your own logic
            }

    Note that the ICustomGroupByEvaluator will only get called to evaluate rows that are adjacent. So you may also need to implement a SortComparer on the column to make sure the column is sorted in the correct order before it is grouped.

     

    Alex.

Children