how to Auto-update application via Online in C#

#region check and download new version program bool bHasError = false; IAutoUpdater autoUpdater = new AutoUpdater(); try {       autoUpdater.Update(); } catch (WebException exp) { MessageBox.Show("Can not find the specified resource");       bHasError = true; } catch (XmlException exp) {       bHasError = true; MessageBox.Show("Download the upgrade file error"); } catch (NotSupportedException exp) {       bHasError = true; MessageBox.Show("Upgrade address configuration error"); } catch (ArgumentException exp) {       bHasError = true; MessageBox.Show("Download the upgrade file error"); } catch (Exception exp) {       bHasError = true; MessageBox.Show("An error occurred during the upgrade process"); } finally { if (bHasError == true) { try {               autoUpdater.RollBack(); } catch (Exception) { //Log the message to your file or database } } }

DearFrancis,