First of all, I was able to reproduce the problems you describe here with the ActiveRowScrollRegion not synchronizing its visible rows until the control paints. I suppose you could argue that the RowScrollRegion is a view and therefore tightly coupled with the visible UI, so it is possible that this is by design, but IMO it should just work, period. I'll leave it up to you as to whether you want to report it as a bug; considering that all you have to do to clear it up is force a repaint, it probably isn't worth the trouble.

That issue notwithstanding, I tried to reproduce the issue you described here but I was not able to. I suspect there are important details missing that are necessary to reproduce the problem. In any case, I posted the code I used to verify that the ListObject property returns the same DataRowView reference when accessed from a row in the control's Rows collection and a row accessed from the ActiveRowScrollRegion's VisibleRows collection. Take a look and see what you're doing that I'm not and if you can nail that down we'll take another look.

Please excuse the terrible formatting here, we seem to be having issues with pasting code.

// Cache refs to the old rows

RowScrollRegion oldRSR = this.grid.ActiveRowScrollRegion;

List<object> oldListObjects = new List<object>(oldRSR.VisibleRows.Count);

for ( int i = 0; i < oldRSR.VisibleRows.Count; i++ )

{

oldListObjects.Add(oldRSR.VisibleRows[i].Row.ListObject);

}

// Clear data source

this.grid.DataSource = null;

// Reset the data source

this.grid.DataSource = this.Table;

// Get a ref to the new RSR

RowScrollRegion newRSR = this.grid.ActiveRowScrollRegion;

// Force a repaint to wake up the RowScrollRegion

this.grid.Update();

// Iterate the RSR's VisibleRows collection and compare each

// row's ListObject to the one that was cached earlier.

for ( int i = 0; i < newRSR.VisibleRows.Count; i++ )

{

object oldListObject = oldListObjects[i];

object newListObject = oldRSR.VisibleRows[i].Row.ListObject;

// The references here will and should be different since a new

// DataRowView object was generated by the data source.

bool oldIsSame = object.ReferenceEquals(oldListObject, newListObject);

// The references here, however, are the same.

bool newIsSame = object.ReferenceEquals(this.grid.Rows[i].ListObject, newListObject);

}