If a DataGridView with a checkbox column can’t be checked verify whether editing has been
disabled. EditMode set to EditOnKeystrokeOrF2 appears to work OK.
To prevent editing of specific columns, use the CellBeginEdit event or set the ReadOnly property of the column.
private void dataGridView1_CellBeginEdit(object sender, DataGridViewCellCancelEventArgs e)
{
}
Also make sure the DataGridView is Enabled and not ReadOnly!
To detect a mouse click on empty cells add the mouseClick event.
private void dataGridView1_MouseClick(object sender, MouseEventArgs e)
{
DataGridView.HitTestInfo ht = dataGridView1.HitTest(e.X, e.Y);
if (ht != null)
{
//e.RowIndex and e.ColumnIndex can be used.
}
}
To prevent selection in a DataGridView add the SelectionChanged event
private void dataGridView_SelectionChanged(object sender, EventArgs e)
{
//Just to be sure this will not become recursive
if (dataGridView.SelectedRows.Count > 0) dataGridView.ClearSelection();
}
To get rid of the empty line at the bottom of a DataGridView control set the following property.
AllowUserToAddRows = false;
Use the designer or following code:
DatagridView.SelectionMode = DataGridViewSelectionMode.FullRowSelect;
Remove all selected rows from an editable DataGridView.
There is small catch here. The new row is also selected but will trigger an exception when removed.
The following code will work correctly.
foreach (DataGridViewRow dr in list.SelectedRows)
{
if (!dr.IsNewRow)
{
list.Rows.Remove(dr);
}
}