Mike,

Brillant - I was having problems showing the first row after: band.ColumnFilters.ClearAllFilters()

The grid would never start at the top - always go to some row somewhere below.

This solution solves getting back to that first row thus showing the grid just like like when it was created.

Thanks again,
David

Hi Mike,

You were closer than I was.  The trick was to get the distance from the ActiveRow to the FirstRow and reapply the same distance.  AFAIK, it works like a charm.

Code update is below if anyone else wants to look at it.

Thanks,

Glenn

private void button2_Click(object sender, EventArgs e)
{

button2.Enabled = false;

this.ultraGrid1.SuspendLayout();

int rowIndex = this.ultraGrid1.ActiveRowScrollRegion.FirstRow.Index;

rowIndex = this.ultraGrid1.ActiveRow.VisibleIndex - rowIndex; //distance between rows

//remove the junk added
#region Remove Junk
List<SampleData> items = new List<SampleData>();
if (radioButton1.Checked)
{
items = _sampleData.Where(o => o.ID > 5 && o.ID < 11).ToList();
}
else if (radioButton2.Checked)
{
items = _sampleData.Where(o => o.ID > 20 && o.ID < 26).ToList();
}

foreach (SampleData sd in items)
{
_sampleData.Remove(sd);
}

ultraDataSource1.Rows.SetCount(_sampleData.Count);
ultraDataSource1.ResetCachedValues();

_sampleData = _sampleData.OrderBy(o => o.ID).ToList();

ultraDataSource1.Rows.SetCount(_sampleData.Count);
ultraDataSource1.ResetCachedValues();
#endregion

UltraGridRow row = this.ultraGrid1.Rows.OfType<UltraGridRow>()
.ToList().Find(r => r.Cells[0].Text.Equals(_activeId.ToString(), StringComparison.CurrentCultureIgnoreCase));

this.ultraGrid1.ActiveRow = this.ultraGrid1.Rows[row.Index];
var activeIndex = ultraGrid1.ActiveRow.Index;
this.ultraGrid1.Rows[activeIndex].Activate();
this.ultraGrid1.Rows[activeIndex].Selected = true;

this.ultraGrid1.ActiveRowScrollRegion.FirstRow = this.ultraGrid1.Rows[Math.Abs(row.Index - rowIndex)];

this.ultraGrid1.ResumeLayout();

updateValues();

button1.Enabled = true;
}

Thanks, I'll give that a shot.

Hi Glenn, 

The key here is that you need to use the FirstRow property on the grid's ActiveScrollRegion: 

this.ultraGrid1.ActiveRowScrollRegion.FirstRow

You can't actually store the row itself, since the data source will likely return new objects after the change than before, and therefore the grid will create all new instances of the UltraGridRow objects for the new rows. But you can use the index. 

So to store the position, you do this: 

int index = this.ultraGrid1.ActiveRowScrollRegion.FirstRow.Index

And to restore it, you do this: 

this.ultraGrid1.ActiveRowScrollRegion.FirstRow = this.ultraGrid1.Rows[index]'

It's a business requirement.  We are migrating a VB6 application to .Net.  We decided to use Infragistics over Telerik because Infragistics offers a cleaner way of doing things like this.  In the VB6 application the row stays the same after grid updates with the exception if that row was removed.

So it's one of those things that when the users transition over to the new application they have the same look and feel as the old one.  Honestly, I tried to get them to do things int the 2010's vs the 90's but I lost the argument over how the 20,000+ users have been using the application.

So if this can't be done please let me know.

Glenn