CODEWITHSUNDEEP
c#winformsdatagridview
ajr
ajr

Reputation: 974

How to process Key.Enter and prevent row change on WinForms CustomDataGridView

I am trying to stop the enter key on winforms dataGridView of changing the row when DataGridViewTextBoxColumn cell is in edit-mode and enter is pressed. Otherwise the functionality should stay normal.

My preferred approach is to create CustomDataGridView and override the necessary methods. My approach seem to end edit-mode but without firing CellValidating event.

Currently this event is used to validate the user input.

  public class CustomDataGridView : DataGridView
  {
    protected override bool ProcessDialogKey(Keys keyData)
    {
      if (keyData == Keys.Enter)
      {
        if (MyProcessDialogKey(keyData)) return true;
      }

      return base.ProcessDialogKey(keyData);
    }

    protected bool MyProcessDialogKey(Keys keyData)
    {

      EndEdit();
      return true;
    }
  }

How can I raise the CellValidating event? Or should I consider different approach?

Upvotes: 1

Views: 260

Answers (2)

jaredbaszler
jaredbaszler

Reputation: 4809

You just need to override the OnKeyDown event as such:

protected override void OnKeyDown(KeyEventArgs e)
{
    if ((e.KeyData & Keys.KeyCode) == Keys.Enter)
        return;
    else
        base.OnKeyDown(e);
}

Upvotes: 0

user6921302
user6921302

Reputation:

You can simply use the KeyDown Event on the DataGridView like following:

private void MyDGV_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e)
{
 if(e.KeyCode == Keys.Enter)
  {
    //First process your stuff

    //To stop Keypress from doing anything more:
    e.Handled = true;
  }
}

More Infos: MSDN

Notice: there are many Events where you can end processing with e.Handled = true

Have a nice day

Upvotes: 1

Related Questions