CurrentCell activate/deactivate problem

[Cathy Noakes]

I am using version 1.5.1.6 of Essential Grid. I have a class derived from the GridControl where I handle sorting when the user clicks on a column header. I make provision for further derived classes to do their own thing before and after the sort operation. For example, most of my instances of the grid are list-box style (row selection) and I usually want a selected row to remain selected after the user clicks on a column header to sort. To do this, I note which row is selected before the sort and after the sort I find and set the selection back to it.

To accomplish this I have an event handler for CurrentCellActivating which 1) checks that the user has clicked on a column header, 2) notes which row is selected in the grid, 3) calls SortByColumn to re-sort the grid, and 4) finds the same data row in the newly sorted grid and calls CurrentCell.MoveTo to re-position the current cell (also clears and sets the selection to that row).

The grid behavior seems to be okay, but when it comes to the call to CurrentCell.MoveTo I am getting an exception that reads "Deactivate called while current cell was in process of activating or deactivating a cell". I tried moving step 4 into an event handler for CurrentCellActivated instead of Activating, but I still see the same error.

Do you know of a way to avoid this exception? Does what I am doing sound correct or is there another/easier way?

Thanks for your help,
Cathy

[Administrator]

Instead of calling CurrentCell.MoveTo from within your CurrentCellActivating event, try directly setting e.RowIndex and e.ColIndex to the row and column of the cell you want to activate.

[Cathy Noakes]

Clay,

Thanks once again for the prompt and effective solution! It might have been obvious to me if all of the steps I described had been happening in one place instead of different classes and methods; but I can change my code around a little and make it work.

I appreciate your help,
Cathy