Hi,

This goes back to the question of which group you want to copy.

You can detect the precense of grouping in the grid by examining the band.SortedColumns collection. You would loop through the collection and look for a column whose IsGroupByColumn property is true. If any are true, then there is grouping applied to that band.

If you have a particular row as a starting point, like the grid's ActiveRow, then you could look at the IsGroupByRow property of the row, or any of it's parent rows up the chain.

But if I'm wanting to put this logic within the same button, how do I know whether the ultragrid is grouped or not?

Okay, that's pretty easy. But how do you want to determine which group to select?

You already know how to select all of the rows when there is no grouping - you just use the grid's Rows collection.

If you have groups, then you can do the same thing, you just have to use a different rows collection - you need a collection of DataRows under the GroupByRow.

There is still a lot of ambiguity in your question, thought. If you have multiple levels of grouping, this gets a little trickier, because you could select the immediate children of the GroupByRow (which could also be GroupByRows) or you might want to walk all the way down the chain until you get to a set of Data rows.But since the child data rows will be broken up into multiple groups, I don't know what you would want to do in that case. You could just select the first set of child data rows, I guess.

Anyway, in a simple case like your screen shot here where you have only a single level of grouping and there is a GroupByRow selected and active, you could select the child rows of that GroupByRow by casting the grid's ActiveRow into an UltraGridGroupByRow and using it's Rows collection.

(grid.Selected.Rows.AddRange(groupByRow.Rows)

I apologize for my lack of clarity.

I want to select all data rows within a single group IF a grouping exists.  If a grouping does not exist, select all data rows in the grid.