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using System.Threading; + Error

hello i have a simple stopwatch which also works. but is add using System.Threading; it gave an error, i need Threading for my backgroundworkers

'Timer' is an ambiguous reference between 'System.Threading.Timer' and 'System.Windows.Forms.Timer'



       Timer timer;       

        public MainForm()
        {
            InitializeComponent();
            timer = new Timer();
            timer.Tick += new EventHandler(timer_Tick);
 
        }

        void timer_Tick(object sender, EventArgs e)
        {
            ms++;
            this.Refresh();
            string strms = "";
            string strss = "";
            string strmm = "";
            string strhh = "";
            strms = GetStringValue(ms);
            strss = GetStringValue(ss);
            strmm = GetStringValue(mm);
            strhh = GetStringValue(hh);
            if (ms == 9)
            {               
                ms = 0;
                ss++;
                strss = GetStringValue(ss);
                if (ss == 59)
                {                   
                    ss = 0;
                    mm++;
                    strmm = GetStringValue(mm);
                    if (mm == 59)
                    {
                        mm = 0;
                        hh++;
                        strhh = GetStringValue(hh);
                        if (hh == 12)
                        {
                            hh = 0;
                        }
                    }
                }
            }

            strTime = strhh + ":" + strmm + ":" + strss;
            lblTime.Text = strTime;
        }

        private void btnStart_Click(object sender, EventArgs e)
        {
            if (btnStart.Text == "&Start")
            {
                btnStart.Text = "&Stop";
                timer.Start();
            }
            else
            {
                btnStart.Text ="&Start";
                timer.Stop();
                ms = 0;
                ss = 0;
                mm = 0;
                hh = 0;
            }
        }

        private string GetStringValue(int nValue)
        {
            string strValue = "00";
            if (nValue == 0)
            {
                return strValue;
            }
            if (nValue < 10)
            {
                strValue = "0" + nValue.ToString();
                return strValue;
            }
            return nValue.ToString();
        }

Power-Mosfet Wednesday, September 16, 2009 8:13 PM

you have to specify which Time class you are using because Timer class is present in both System.Threading and System.Windows.Form namespaces. and .NET doesnot know which one you are refering to.

use either
timer = new System.Threading.Timer();
or
timer = new System.Windows.Form.Timer();

Paras