72
I'd go with this:
private void myDataGridView_SelectionChanged(Object sender, EventArgs e)
{
myDataGridView.ClearSelection();
}
I don't agree with the broad assertion that no DataGridView should be unselectable. Some UIs are built for tools or touchsreens, and allowing a selection misleads the user to think that selecting will actually get them somewhere.
Setting ReadOnly = true on the control has no impact on whether a cell or row can be selected. And there are visual and functional downsides to setting Enabled = false.
Another option is to set the control selected colors to be exactly what the non-selected colors are, but if you happen to be manipulating the back color of the cell, then this method yields some nasty results as well.
I found setting all AllowUser... properties to false, ReadOnly to true, RowHeadersVisible to false, ScollBars to None, then faking the prevention of selection worked best for me. Not setting Enabled to false still allows the user to copy the data from the grid.
The following code also cleans up the look when you want a simple display grid (assuming rows are the same height):
int width = 0;
for (int i = 0; i < dataGridView1.Columns.Count; i++)
{
width += dataGridView1.Columns[i].Width;
}
dataGridView1.Width = width;
dataGridView1.Height = dataGridView1.Rows[0].Height*(dataGridView1.Rows.Count+1);