ReportControl expands groups on populate : Hi,Please note that after repopulating...

Fri, 24 Mar 2006 15:16:05 +0000

Author: sserge
Subject: 1689
Posted: 24 March 2006 at 3:16pm

Hi,

Please note that after repopulating the control, all rows, includinggroup rows, have renewed to another objects. That's why alltheirs properties, including collapsed state are lost.

However,of course the solution exists. For example, you can override Populate()method for your control, or just add "before" and "after" Populateblocks of code, where you'll save Rows state before Populating, andrestore it after.

For example on how it could be accomplished see below:


    {
        // Save previous Collapsed state
        CXTPReportRecords recs;        
        CStringArray arGroups;        
        int nRowsCount = GetReportCtrl().GetRows()->GetCount();
        int nRow = 0;
        for (nRow = 0; nRow < nRowsCount; nRow++)
        {
            CXTPReportRow* pRow = GetReportCtrl().GetRows()->GetAt(nRow);

            // save possible collapsed "Tree" rows
            if (pRow && pRow->HasChildren() && !pRow->IsGroupRow() && !pRow->IsExpanded())
            {
                recs.Add(pRow->GetRecord());
            }

            // Save possible collapsed Group rows
            if (pRow && pRow->IsGroupRow() && !pRow->IsExpanded())
            {
                CXTPReportGroupRow* pGRow = (CXTPReportGroupRow*)pRow;
                arGroups.Add(pGRow->GetCaption());
            }
        }

        // Call base Populate()
        GetReportCtrl().Populate();

        // Restore Collapsed state
        nRowsCount = GetReportCtrl().GetRows()->GetCount();
        for (nRow = 0; nRow < nRowsCount; nRow++)
        {
            CXTPReportRow* pRow = GetReportCtrl().GetRows()->GetAt(nRow);
            if (pRow && pRow->HasChildren())
            {
                // Check for group row
                if (pRow->IsGroupRow()) 
                {
                    CXTPReportGroupRow* pGRow = (CXTPReportGroupRow*)pRow;
                    for (int i = 0; i < arGroups.GetSize(); i++)
                    {
                        if (!pGRow->GetCaption().Compare(arGroups.GetAt(i)))
                        {
                            pGRow->SetExpanded(FALSE);
                            break;
                        }
                    }
                }
                else
                // Check Tree rows
                {
                    for (int i = 0; i < recs.GetCount(); i++)
                    {
                        if (pRow->GetRecord() == recs.GetAt(i))
                        {
                            pRow->SetExpanded(FALSE);
                            break;
                        }
                    }
                }
            }
        }
    }

--
WBR,
Serge

ReportControl expands groups on populate : We have develepoed a report control...

Fri, 21 Jan 2005 04:41:04 +0000

Author: AndersH
Subject: 1689
Posted: 21 January 2005 at 4:41am

We have develepoed a report control based task list which is automatically refreshed at regular intervals. If the user has applied custom grouping and collapsed some of the groups all the groups are expanded the next time populate is called. The behaviour can very easily be seen in the ReportControl sample: group by something and collapse a few groups. Double-click a bold line to set its state to read - all groups are expanded.

Does anyone have any idea on how to avoid this?

Codejock Developer Community : ReportControl expands groups on populate

ReportControl expands groups on populate : Hi,Please note that after repopulating...

ReportControl expands groups on populate : We have develepoed a report control...