DataGrid & Keyboard

melvik · September 5th, 2004, 11:59 PM

Hi there:
I wanna assign some shortcut keys in my grid, but it doesnt fire! How can I make a shortcut in DataGrid?!

Always:),
Hovik Melkomian.

Kep · September 6th, 2004, 01:02 AM

How do you assign the shortcut to the grid?
What does the shortcut have to do?
Is the shortcut defined at design time or run-time?

I'm not sure what you're trying to do.

Kep.

melvik · September 7th, 2004, 12:45 AM

Acctually I set it in Form_KeyDown as:

Code:

private void MorDeliver_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
{
    switch(e.KeyCode)
    {
        case Keys.Escape:
            DO_SOME_THING
            break;
        case Keys.F2 ://Save
            DO_SOME_THING
            break;
        case Keys.F3://Edit ...

& set for all conrols as well, but in grid even I can contol press_Key or any.
Any IDEA?!?!

Always:),
Hovik Melkomian.

coderforrent.com · September 7th, 2004, 09:33 PM

What I believe is happening to you is that the textbox that is in the current cell is catching the event for the keypress and not the DataGrid. Try the OnCellChange event for the datagrid, clear the controls for the CurrentCell, and add a new Textbox that Fills the cell. Then add a KeyDown event to the new textbox and handle it. Sounds kinda complicated, but I betcha it would work. You can also use this technique to add a dropdownlist to a datagrid. If you need more info just ask. :)

Hope this helps

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melvik · September 8th, 2004, 12:53 AM

Ok I got it! but as u said its complicated! Anyway...
Yes sure I'll be glad if u tell me about Combobox on DataGrid:)

Looking to hear from u ASAP.

Always:),
Hovik Melkomian.

coderforrent.com · September 13th, 2004, 06:46 PM

Basically it is the same principle.

On the cellchanged event:

1. Clear the controls in the Current cell.
2. Create a new DropDownList.
3. Populate the DropDownList from the database with the options.
4. Set the OnChange EventHandler
5. Add it to the CurrentCell Control library

On the OnChange Event:
1. Use the CurrentCell.Row (May be DataGrid.CurrentRow, can't remember off the top of my head).
2. Update the DataTable/DataSet that is associated with the row with the selected info from the drop down list.

NOTE: You must make sure that the datagrid is not ordered by a non-default field or when the selection is made you will update the wrong record in the DataTable.

I found this to be a pretty good article: http://www.codeproject.com/cs/miscctrl/DataGridZen.asp

Hope this helps,

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melvik · September 15th, 2004, 12:35 AM

tnx dear, let me work on ;)

Always:),
Hovik Melkomian.