Hi Mike,

What I meant was:

When you do the dsPricing.Rows.Clear(), the associated UltraGrid loses all it's layout information.

It's so strange to me that you can create an UltraGrid layout in the design-time designer, attach the UltraDatasource and everything works fine-- but clear out the rows in the UltraDatassource and all your grid layout settings go with it.

I expected the grid component to maintain it's layout settings even if the bound datasource was removed or empty. ;-)

I've since solved the issue by moving the grid layout code into the Initialize_Layout event.  Everything working fine now.

I agree that it's strange. That should not be happening. There's no reason why the grid should be losing it's layout when you simply clear the rows collection - unless clearing the root-level rows collection is somehow destroying the child band and causing the UltraDataSource to send a Reset notification.

Sounds like a bug to me.

Your workaround seems reasonable, but the user will lose any state-specific information. For example, if the user resized a column, it will revert to it's original size when you clear the rows. So what you might want to do is use the grid.DisplayLayout.Save method to save the layout to a stream and then re-load it after you clear the rows.

Mike Saltzman"]

Your workaround seems reasonable, but the user will lose any state-specific information. For example, if the user resized a column, it will revert to it's original size when you clear the rows. So what you might want to do is use the grid.DisplayLayout.Save method to save the layout to a stream and then re-load it after you clear the rows.

Nice... sounds just like what I needed to do.  I'll give that a go and see how it works out.  Thanks for the tip!

Great product and excellent support.  Keep up the good work!

Hi Mike,

As mentioned, I used the DisplayLayout.SaveXML method to save the layout the stream and tried to load using the LoadLayout metho. Please guide where i m going wrong

In fthe Form_Load, adding the code for saving the Layout in xml format.

In Form_Load
            System.IO.FileStream fs = null;
            string XML_LAYOUT_FILE_PATH = @"C:\\testlayout.xml";
            // Open a new file to save the layout to.
            fs = new System.IO.FileStream(XML_LAYOUT_FILE_PATH, System.IO.FileMode.Create,      System.IO.FileAccess.Write, System.IO.FileShare.None);
            this.benefitPlanIncomeUltraGrid.DisplayLayout.SaveAsXml(fs, PropertyCategories.All);
            fs.Close();

In the button click event, clearing the gridrows.

 private void clearAllButton_Click(object sender, EventArgs e)
        {
           System.IO.FileStream fs = null;
           string XML_LAYOUT_FILE_PATH = @"C:\\testlayout.xml";
           MessageBox.Show(benefitPlanIncomeUltraGrid.Rows.Count.ToString());
           foreach (UltraGridRow rows in benefitPlanIncomeUltraGrid.Rows)
           {
               if (!rows.IsDeleted)
               {
                   rows.Delete(false);
               }
               rows.Refresh();
           }
           benefitPlanIncomeUltraGrid.Rows.Refresh(RefreshRow.ReloadData, true);
       
           //MessageBox.Show(benefitPlanIncomeUltraGrid.Rows.Count.ToString());
           //benefitPlanIncomeUltraGrid.Rows.Refresh(RefreshRow.ReloadData, true);
           //  this.benefitPlanIncomeUltraGrid.ResetDisplayLayout();
           this.benefitPlanIncomeUltraGrid.DisplayLayout.Bands[0].RowLayouts.Clear();
          // this.benefitPlanIncomeUltraGrid.DisplayLayout.Rows.Band.ResetRowLayouts();
           fs = new System.IO.FileStream(XML_LAYOUT_FILE_PATH, System.IO.FileMode.Open,     System.IO.FileAccess.Read, System.IO.FileShare.Read);
           this.benefitPlanIncomeUltraGrid.DisplayLayout.LoadFromXml(fs, PropertyCategories.All);
           fs.Close();
         
        }

Please help to resove the issue. It is very urgent.

Thanks,

JIJIL

To what issue are you referring? Are you saying that even when you save the layout and re-load it, it's not working? The grid is still losing it's layout?

I have no explanation for that. I don't see anything obviously wrong with the code you have here, but it's always hard to tell from a code snippet when you can't actually run it.

Perhaps you could try to duplicate the problem in a small sample project and post it here so I can take a look.