Hi,

If the event is not firing (Debug mode or otherwise), then something is wrong. Are you sure you are hooking the event? Is it getting unhooked somewhere else in your code? Is there a toolbar or something on the form that might be eating the arrow keys?

Hello Mike,

I hook the event here 

 public StoreTransferView()

        {

            InitializeComponent();

            this.dgItems.KeyDown += new System.Windows.Forms.KeyEventHandler(this.dgItems_KeyDown);          

        }

I have attached and image of how and where the grid appears. ( Its in the middle below the "Add Items" Drop down button)

I also noticed that the event handler fires for any other key on the key board except for the arrow keys. And when I press the arrow key, although the event handler does not get called the selection moves from left to right.

Hoping for some help / suggestions

Thanks,

Ashwin 

Hi Ashwin,

Well, if the KeyDown event is not firing just for those keys, but the active cell in the grid is changing, then it seems like the grid must be handling those keys before the KeyDown event gets called somehow and then the grid is not firing the event.

That should not happen. The grid should fire the KeyDown event and give you a chance to handle the key first. But without knowing all of the grid's property settings and the current state of the grid when this is occurring, it's impossible for me to try this out to see if it's a bug.

What version of the grid are you using?

Can you post a small sample project demonstrating this behavior?

Hi Ashwin,

A code snippet like this is pretty tough to read and I don't think anything here is related to the problem, anyway. I doubt that the issue is caused by property settings on the grid, it's more likely to be some event you are handling or method you are overriding.

I'm a bit confused by what you mean by this:

ajagadish said:

This seems to work fine in other places where this is being used but when i try to use this in my project it does not seem to move down to the cell in the bottom row, but moves to its right cell.

Are you saying that you are using the same derived grid control in both cases and it works in one case and not in another? Or are you saying that you copied the same code?

From where does the OnDownArrowPressed method get called? My best guess is that maybe you are overriding some methods on the grid and never calling the base implementation.

Hello Mike,

I have attached 1 zip file with 2 documents which contain code from the designer.cs. 

One contains the code for the grid which is working, i.e the arrow keys function properly.

The other is the code for the grid which is not working. 

I am not sure what the problem is .. may be it may help you analyze the problem.

Thanks for all the help so far. Very much appreciated.

Ashwin

Hello Mike,

Sorry about the delay in replying. I tired to put together a sample project but i kept getting a lot of errors. 

I realized that we are using a custom grid that inherits from the ultragrid.

When I looked into code of custom grid, here is the method that gets fired when I press the down arrow key

private void OnDownArrowPressed(KeyEventArgs e)

       {

           //If Down arrow and DropDownIsNotActive

           if (e.KeyCode == Keys.Down && !(_blnIsDropDownActive))

           {

               e.Handled = true;

               //If in EditMode,  Exit the edit mode from current row

               if ((_objUltraGrid.CurrentState & UltraGridState.InEdit) == UltraGridState.InEdit)

               {

                   _objUltraGrid.PerformAction(UltraGridAction.ExitEditMode, false, false);

               }

               //If no active cell move to the row below.

               if (_objUltraGrid.ActiveCell == null)

               {

                   _objUltraGrid.PerformAction(UltraGridAction.BelowRow, false, false);

               }

               //If active cell, move to the cell below and enter edit mode.

               else if (_objUltraGrid.ActiveCell != null)

               {

                   _objUltraGrid.PerformAction(UltraGridAction.BelowCell, false, false);

                   _objUltraGrid.PerformAction(UltraGridAction.EnterEditMode, false, false);

               }

           }

       }

This seems to work fine in other places where this is being used but when i try to use this in my project it does not seem to move down to the cell in the bottom row, but moves to its right cell.

Hoping for some help.

Thanks,
Ashwin 

Thanks for the reply Mike. I will post a simple project shortly. 

Thanks,
Ashwin