BeforeDrawRow Severe Performance Issues

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   Hi,

I've writting the following BeforeDrawRow event in Visual Basic .NET 2005.

Private Sub List_BeforeDrawRow(ByVal sender As Object, ByVal e As AxXtremeReportControl._DReportControlEvents_BeforeDrawRowEvent) Handles ActiveTechniciansList.BeforeDrawRow

If e.row.Index Mod 2 = 0 And e.row.GroupRow = False Then

e.metrics.BackColor = RGB(250, 250, 250)
End If

If e.row.Selected = True Then

e.row.Selected = False

End If

If sender Is ActiveTechniciansList Then

If IsOverDue(e.row.Record.Tag) Then

e.metrics.ForeColor = 255
End If

End If

End Sub

The trouble is, if my Report Control is placed on a stand-alone (non MDI child) form, this code makes scrolling of report control very slow. The second even more severe problem is that if my report control is hosted on an MDI child form, the control does not display at all. What could be wrong?

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dractivex Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 02 November 2006 Location: United Kingdom Status: Offline Points: 2	Post Options Post Reply Quote dractivex Report Post Thanks(0) Quote Reply Topic: BeforeDrawRow Severe Performance Issues Posted: 02 November 2006 at 9:28am
	Hi, I've writting the following BeforeDrawRow event in Visual Basic .NET 2005. Private Sub List_BeforeDrawRow(ByVal sender As Object, ByVal e As AxXtremeReportControl._DReportControlEvents_BeforeDrawRowEvent) Handles ActiveTechniciansList.BeforeDrawRow If e.row.Index Mod 2 = 0 And e.row.GroupRow = False Then e.metrics.BackColor = RGB(250, 250, 250) End If If e.row.Selected = True Then e.row.Selected = False End If If sender Is ActiveTechniciansList Then If IsOverDue(e.row.Record.Tag) Then e.metrics.ForeColor = 255 End If End If End Sub The trouble is, if my Report Control is placed on a stand-alone (non MDI child) form, this code makes scrolling of report control very slow. The second even more severe problem is that if my report control is hosted on an MDI child form, the control does not display at all. What could be wrong?

sserge Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 01 December 2004 Status: Offline Points: 1297	Post Options Post Reply Quote sserge Report Post Thanks(0) Quote Reply Posted: 05 November 2006 at 12:57pm
	please look at http://forum.codejock.com/forum_posts.asp?TID=3623&PID=10973#10973 -- WBR, Serge

dractivex Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 02 November 2006 Location: United Kingdom Status: Offline Points: 2	Post Options Post Reply Quote dractivex Report Post Thanks(0) Quote Reply Posted: 07 November 2006 at 3:51am
	Serge, The link you've provide does not relate to my issue. I am already created the RC dynamically, not using the designer. The forms work perfectly fine until I use BeforeDrawRow event. If this even it enabled, the control scrolling becomes slow on a stand-alone form and RC does not display at all on MDI child forms. However, if I disable BeforeDrawRow event, the everything works as expected both on stand-alone forms and MDI child forms. Any Ideas?

sserge Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 01 December 2004 Status: Offline Points: 1297	Post Options Post Reply Quote sserge Report Post Thanks(0) Quote Reply Posted: 07 November 2006 at 12:05pm
	What is the implementation of IsOverDue? May be it is the braking method? Try commenting it. I've created a small sample for me and it works pretty fine. I'm using the latest version 10.3.1. -- WBR, Serge