How can i display the timer count in seconds from a class to form1 ?

  • Thread starter Thread starter Chocolade1972
  • Start date Start date
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Chocolade1972

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In the class top:


System.Windows.Forms.Timer timer1 = new System.Windows.Forms.Timer();

public class ProgressEventArgs : EventArgs
{
public int Percentage { get; set; }
public string StateText { get; set; }
}

public event EventHandler<ProgressEventArgs> ProgressChanged;

public void Init()
{
timer1.Interval = 30000;
timer1.Stop();
timer1.Tick += Timer1_Tick;
object obj = null;
int index = 0;
ExtractCountires();
foreach (string cc in countriescodes)
{
// raise event here
ProgressChanged?.Invoke(obj,new ProgressEventArgs{ Percentage = 100 * index / countriescodes.Count, StateText = cc });
ExtractDateAndTime("http://www.sat24.com/image2.ashx?region=" + cc);
index +=1;
}
ImagesLinks();
}

Then the timer tick event

private void Timer1_Tick(object sender, EventArgs e)
{
countriescodes = new List<string>();
countriesnames = new List<string>();
DatesAndTimes = new List<string>();
imagesUrls = new List<string>();
Init();
}



Then the method where i start the timer


public void ExtractDateAndTime(string baseAddress)
{
try
{
var wc = new WebClient();
wc.BaseAddress = baseAddress;
HtmlDocument doc = new HtmlDocument();

var temp = wc.DownloadData("/en");
doc.Load(new MemoryStream(temp));

var secTokenScript = doc.DocumentNode.Descendants()
.Where(e =>
String.Compare(e.Name, "script", true) == 0 &&
String.Compare(e.ParentNode.Name, "div", true) == 0 &&
e.InnerText.Length > 0 &&
e.InnerText.Trim().StartsWith("var region")
).FirstOrDefault().InnerText;
var securityToken = secTokenScript;
securityToken = securityToken.Substring(0, securityToken.IndexOf("arrayImageTimes.push"));
securityToken = secTokenScript.Substring(securityToken.Length).Replace("arrayImageTimes.push(", "").Replace(")", "");
var dates = securityToken.Trim().Split(new string[] { ";" }, StringSplitOptions.RemoveEmptyEntries);
var scriptDates = dates.Select(x => new ScriptDate { DateString = x });
foreach (var date in scriptDates)
{
DatesAndTimes.Add(date.DateString);
}
}
catch(WebException wex)
{
timer1.Start();
}
}



And in form1

private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
if (backgroundWorker1.CancellationPending == true)
{
e.Cancel = true;
return; // this will fall to the finally and close everything
}
else
{
ei.ProgressChanged += (senders, eee) => backgroundWorker1.ReportProgress(eee.Percentage, eee.StateText);
ei.Init();
}
}

private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
{
ProgressBar1.Value = e.ProgressPercentage;
label7.Text = e.UserState.ToString();
label8.Text = e.ProgressPercentage + "%";
}

private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
if (e.Error == null)
{
ProgressBar1.Value = 100;
}
else
{

}
}

Now its reporting in form1 from the class Init() from inside the loop.

But in case of exception i want that the timer tick event will raise after 30 seconds and will start over again the Init()

But while its waiting 30 seconds to start i want to report to the form1 a counter of 30 seconds.

How can i use the event ProgressEventArgs to report the timer seconds to form1 label ?

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