Sort array of strongly typed DataRows
I'm sure I'm missing something obvious, but I can't figure out how to sort an array of DataRows that have been drawn from a DataTable. I'm getting the child rows for a particular parent record using
dim drChildA() as dsSet.ChildARow = drParent.GetChildARows
I want to sort these rows, because I can't be certain they were entered in the proper order. (The primary key is a simple counter that's autoincremented for every new record, so it's not useful for this purpose.)
It seems to me there ought to be a way to choose a particular field (or fields) of the DataRow to use to sort, but I can't figure out how to put that into the structure of the Array.Sort method short of defining my own IComparer; I can do that, but it seems like it ought to be reinventing the wheel.
dim drChildA() as dsSet.ChildARow = drParent.GetChildARows
I want to sort these rows, because I can't be certain they were entered in the proper order. (The primary key is a simple counter that's autoincremented for every new record, so it's not useful for this purpose.)
It seems to me there ought to be a way to choose a particular field (or fields) of the DataRow to use to sort, but I can't figure out how to put that into the structure of the Array.Sort method short of defining my own IComparer; I can do that, but it seems like it ought to be reinventing the wheel.
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Nasir Razzaq
If you add these rows to a datatable, you can use the sort method.
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CodeCruiser: The rows are already in a datatable, so moving them to a new datatable would mean a physical copy which I think would slow things down considerably.
Graye: Thanks for this suggestion. I discovered that I had an IComparer interface written elsewhere in my (large) project to allow doing a sort on the array, so I think I'm going to use that for the moment, though when I have a chance, I'll try to test the two alternatives for performance.
Graye: Thanks for this suggestion. I discovered that I had an IComparer interface written elsewhere in my (large) project to allow doing a sort on the array, so I think I'm going to use that for the moment, though when I have a chance, I'll try to test the two alternatives for performance.