// This function is called when the textbox holding the value of the
// number of channels is changed by the user. The default value is set
// to 4 channels. If nothing is changed, the function returns. If an
// invalid number of channels is chosen, the number of channels to to
// be read is reset to 4, and an error message is displayed.
private void NumChannels_TextChanged(object sender, EventArgs e)
{
if (!user_change)
{
return;
}
try
{
if ((Convert.ToInt32(NumChannels.Text) < 0) || (Convert.ToInt32
(NumChannels.Text) > 7))
{
throw new Exception();
}
LASTCHANNEL = Convert.ToInt32(NumChannels.Text) - 1;
}
catch
{
MessageBox.Show("Invalid Number of Temperature Input Channels.\n\nValue must be between 1 and 8.");
LASTCHANNEL = 3;
user_change = false;
this.NumChannels.Text = Convert.ToString(LASTCHANNEL + 1);
user_change = true;
}
Ch0.Clear();
Ch1.Clear();
Ch2.Clear();
Ch3.Clear();
Ch4.Clear();
Ch5.Clear();
Ch6.Clear();
Ch7.Clear();
// Reset the default value of the boolean variable user_change.
user_change = true;
}
public ChannelViewModel(Ch2 ch)
{
this.mCH = ch;
}
static void Main(string[] args)
{
chapter2.Ch2 ch2 = new Ch2();
ch2.practice_1();
}
