I have tow bands in my wingrid. When the value in parent band changes, I want to delete all the rows in the child band. Can somebody tell me how to do it?
In the CellChange event:
foreach (var childRow in parentRow.Childbands[0].Rows)
{
childRow.Delete();
}
Hi,
Amiram, did you test this code? It seems to me like this is very dangerous and might even cause an exception. You should never remove items from a collection in a ForEach loop, since removing items will change the size of the collection and thus mess up the indexer.
Here's some safer code:
private void DeleteAllChildRows(UltraGridRow parentRow) { foreach (UltraGridChildBand childBand in parentRow.ChildBands) { UltraGridRow[] rows = (UltraGridRow[])childBand.Rows.All; foreach (UltraGridRow row in rows) { row.Delete(false); } } }
You're right. Didn't test it.
how about if you have nest children?
in my case I have forms with a child of cats which has a child of items, which has a child of values...
What I am wanting is something that will make rowstates as deleted on all nested children, as the user is only going to see band[0] (forms)
When you delete a row from the grid, the grid asks the BindingManager in DotNet to delete that row. As far as I know, this is not recursive - it doesn't walk down the chain and delete the child rows. You would have to handle this yourself in code.
Dear Sir,
Please give me your email id .
My email id is rspanday.n@gmail.com
thanks,
Ravi
Hello Ravi,
Do you need some kind of assistance regarding this topic? Please let me know, I will be happy to help you.