Hello Infragistic-Team!
I have upgrade my Windows Form Application from Version: 8.2 to 9.2.Now works the row selection from the Wingrid (9.2) much slower! Can you tell me why or is a fix planed?
Thank you for answer!myGilPS: (It works fine, when i downgrade the project back to Version 8.2!)
I'm not aware of any new issues like this. Have you tried getting the latest service release?
How to get the latest service release - Infragistics Community
If that does not help, we will need you to provide more information or a sample so we can try to reproduce the issue and get it fixed.
Hello!
Yes i use the latest Service Release (SR_2058). You can see the difference beetween the v8.2 and v9.2 in this YouTube Video: http://www.youtube.com/watch?v=t7S784gXj4MOR
If you create a new project with the following code, you can see the difference better:Please try to select all rows in v9.2 and then downgrade the project to 8.2 and try it again - now you will see UltraGrid with v8.2 works faster! private void Form1_Load(object sender, EventArgs e) { this.ultraGrid1.Dock = DockStyle.Fill; DataTable myTable = new DataTable(); for (int iLoop = 0; iLoop < 20; iLoop++) myTable.Columns.Add("Column" + iLoop); for (int iLoop = 0; iLoop < 1000; iLoop++) myTable.Rows.Add(new string[] { "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t" }); this.ultraGrid1.DataSource = myTable; this.WindowState = FormWindowState.Maximized; }Much thanks for answer + help!myGil
You can also try it with the Infragistic-Sample:Windows Forms Samples / Grids / WinGrid / Samples Explorer / V3.2 Virtual Mode (1 Millon Rows !) 8.2 and then 9.2
Thanks for Help!myGil
Hi,
I tried this out and I do see a slight difference in the speed of selection. In v9.2, it's a bit jumpy, but still pretty responsive.
My guess is that some bug that was fixed somewhere along the way probably caused this. It may be that whatever changed was unavoidable in order to fix some larger issue, but it's something we should definitely look into and see if we can get that performance back without any adverse affects.
I forwarded this thread and the sample I created using your code over to Infragistics Developer Support so they can write this up for review by the developers.