Welcome to the Lounge

if(!string.IsNullOrWhiteSpace(_signature))
{
    MessageBox.Show("This is my signature: " + Environment.NewLine + _signature);
}
else
{
    MessageBox.Show("404-Signature not found");
}

if(!string.IsNullOrWhiteSpace(_signature))
{
    MessageBox.Show("This is my signature: " + Environment.NewLine + _signature);
}
else
{
    MessageBox.Show("404-Signature not found");
}

if(!string.IsNullOrWhiteSpace(_signature))
{
    MessageBox.Show("This is my signature: " + Environment.NewLine + _signature);
}
else
{
    MessageBox.Show("404-Signature not found");
}