Multiple column Sort on Ultrawingrid

Hi

I have three (3) columns. When we sort descending/ascending on the first column then it should automatically sort the others ascending. Please let me know how to approach this issue. Thanks.

 There are two ways you could go about this.

1) You could trap the BeforeSortChange event and use the SortedColumns.Add method to sort each column. 

2) You could use the SortComparer property on the column. You would create a class that implements IComparer and you could write code in the Compare method to examine the values in all of the columns to sort in the order you want. 

I think we can't proceed with the first approach as we cannot modify the sorted columns list while we are in the BeforeSortChange event. I will try writing my own sort comparer. Thanks.

 

Why can't you modify the collection inside the BeforeSortChange event? Are you getting an exception?

So there is no multi-column sort capability built in? Is there any plan to? This seems pretty basic.

Yes, the grid has multi-column sorting built in. You just set the HeaderClickAction to SortMulti.

But I thought this discussion was about sorting 3 columns when the user only clicks to sort one.