Hello, is there anyway to capture a keypress or keydown event in the DataGridView? I know there's events called KeyDown and Keypress, but if the DGV is in edit mode, they never get caught.
My ultimate goal is to make it so pressing enter moves to the Cell to the right, instead of to the next row but I need to know what key is being pressed before I can do that.
Thanks
-Adam
It would be great if someone could tell if theres anyway of do that.
To handle the KeyDown and KeyPress events for the editing control just handle the EditingControlShowing event and access the events on the editing control. Check out the DataGridView faq for more info: http://www.windowsforms.net/Samples/Go%20To%20Market/DataGridView/DataGridView%20FAQ.doc That said, you do have to derive from the DataGridView to do what you want. This is due to the way that keyboard handling works for contained controls. In a future version of the DataGridView we would like to add a few more events (yeah!) to help make this scenario easier to do. -mark
Here is the code you need to make the Enter key move the focus to the right:
public class dgv : DataGridView
{
protected override bool ProcessDialogKey(Keys keyData)
{
Keys key = (keyData & Keys.KeyCode);
if (key == Keys.Enter)
{
return this.ProcessRightKey(keyData);
}
return base.ProcessDialogKey(keyData);
}
protected override bool ProcessDataGridViewKey(KeyEventArgs e)
{
if (e.KeyCode == Keys.Enter)
{
return this.ProcessRightKey(e.KeyData);
}
return base.ProcessDataGridViewKey(e);
}
}
DataGridView Program Manager
Microsoft
This post is provided “as-is”
As i said its not normal for a user that has to fill a lot of fields to have the enter key with that default behavior. Its not a big thing but theres nothing published on the web about this matter. thank you again.
I'll get the docs and DataGridView FAQ updated with this.
-mark
DataGridView Program Manager
Microsoft
This post is provided "as-is"
This modified version also adds a new row automatically and hops back to the first column after an enter given in the last column a row higher:
public class DataGridViewEnter : DataGridView { protected override bool ProcessDialogKey(Keys keyData) { Keys key = (keyData & Keys.KeyCode); if (key == Keys.Enter) { return this.ProcessRightKey(keyData); } return base.ProcessDialogKey(keyData); } public new bool ProcessRightKey(Keys keyData) if ((base.CurrentCell.ColumnIndex == (base.ColumnCount - 1)) && (base.CurrentCell.RowIndex + 1 != base.NewRowIndex)) protected override bool ProcessDataGridViewKey(KeyEventArgs e) |
Hope you guys find it usefull.
Cheers,
Paul
Thanks,
Kevin
I'm really stuggling with the visual basic documentation on trying to understand how to capture the key events when accessing the editing control of a DataGridView. Using a standard text column, I want to filter out letters and be able to capture numbers only, right, left, enter, tab, delete, escape, etc keys to create the behavior I would like.
Could you please provide exactly how I would use the e.control command to determine the editing control. I've tried using the calendar example and tried editing for a texbox, to no avlail.
There is a solution posted by me and others that creates the functionality that you are searching for. Or is it not applicable to you situation?
Cheers,
Paul
Adjusted version where the last cell is also being checked...
public class DataGridViewEnter : DataGridView
{
//This override causes the DataGridView to use the enter key in a similar way as
//the tab key
protected override bool ProcessDialogKey(Keys keyData)
{
Keys key = (keyData & Keys.KeyCode);if (key == Keys.Enter)
{
return this.ProcessRightKey(keyData);
}
return base.ProcessDialogKey(keyData);
}
public new bool ProcessRightKey(Keys keyData)
{
Keys key = (keyData & Keys.KeyCode);if (key == Keys.Enter)
{
if ((base.CurrentCell.ColumnIndex == (base.ColumnCount - 1)) && (base.CurrentCell.RowIndex == (base.RowCount - 1)))
{//This causes the last cell to be checked for errors
base.EndEdit();
((BindingSource)base.DataSource).AddNew();
base.CurrentCell = base.Rows[base.RowCount - 1].Cells[0];
return true;
}if ((base.CurrentCell.ColumnIndex == (base.ColumnCount - 1)) && (base.CurrentCell.RowIndex + 1 != base.NewRowIndex))
{
base.CurrentCell = base.Rows[base.CurrentCell.RowIndex + 1].Cells[0];
return true;
}
return base.ProcessRightKey(keyData);
}
return base.ProcessRightKey(keyData);
}
protected override bool ProcessDataGridViewKey(KeyEventArgs e)
{if (e.KeyCode == Keys.Enter)
{
return this.ProcessRightKey(e.KeyData);
}
return base.ProcessDataGridViewKey(e);
}
}
Hi Logan
I would explain step by step
You have to derive the datagridview class to do this.
First you have to add a new class1.vb to your project and write some code in it:
Public Class DGVMod'this tells this class that is a datagridview
Inherits System.Windows.Forms.DataGridView
'this function do the half of job
'when you hit a key (like return) it transforms like you
'have been hit the tab key
'this doent work when you are editing the cell
End
ClassCompile your project. You have to drag your new DGVMod control from the toolbox to your form and its done.
