Question

I know that C# is an automatic garbage collection language, but will I notice a difference if I dispose a form? For example:

SettingsDialog dialog;
private void settingsToolStripMenuItem_Click(object sender, EventArgs e)
{
    dialog = new SettingsDialog();
    dialog.ShowDialog();
    dialog.FormClosed += new FormClosedEventHandler(dialog_FormClosed);
}
void dialog_FormClosed(object sender, FormClosedEventArgs e)
{
    dialog.Dispose();
}

Or should I leave it as:

private void settingsToolStripMenuItem_Click(object sender, EventArgs e)
{
    SettingsDialog dialog = new SettingsDialog();
    dialog.ShowDialog();
}

Also, what if SettingsDialog consumes large amounts of memory? Will this make a difference?

Thanks in advance

Answer 1

Just use:

using(SettingsDialog dialog = new SettingsDialog())
{
    dialog.ShowDialog();
}

this will Dispose dialog automatically.