Can a DataGridView cell be instructed to mask entered characters with an asterisk?

Question

Is there a way to replace the characters entered in a cell of a DataGridView with an asterisk while entering them? If so, how can I do this? Any help is appreciated.

Answer 1

As Mark Rideout writes in his answer found on social.msdn.microsoft.com

Handle the EditingControlShowing event and then cast the editing control to a TextBox and manually set the UseSystemPasswordChar to true:

TextBox t = e.Control as TextBox;
if (t != null)
{
    t.UseSystemPasswordChar = true;
}

Answer 2

try this

in the DataGridView EditingControlShowing event

private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
        {
            if (e.Control.GetType() == typeof(DataGridViewTextBoxEditingControl))
            {
                TextBox txt = (TextBox)e.Control;
                txt.PasswordChar = '*';
            }
        }

and in the Cell Formating Event

private void dataGridView1_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e)
        {
            if(e.Value != null)
                e.Value = new String('*', e.Value.ToString().Length);
        }

hope this helps