private void bgwMain_DoWork(object sender, DoWorkEventArgs e)
{
object[] parameters = e.Argument as object[];
BackgroundWorkerTasks task = (BackgroundWorkerTasks)parameters[0];
if (task == BackgroundWorkerTasks.AddServicesFromFile)
{
string path = parameters[1] as string;
e.Result = AddServicesFromDataTable(path, e);
}
else if (task == BackgroundWorkerTasks.CheckForExisingServices)
{
List <DataServiceInfo> rows = parameters[1] as List <DataServiceInfo>;
e.Result = CheckForServicesInCache(rows, e);
}
else if (task == BackgroundWorkerTasks.UpdateDatabase)
{
List <DataServiceInfo> services = parameters[1] as List <DataServiceInfo>;
e.Result = AddServicesToDatabase(services, e);
}
else
{
// Build parameters to pass to the background worker
object[] outParameters = new object[2];
outParameters[0] = BackgroundWorkerTasks.Unknown;
outParameters[1] = "Unknown task provided to background worker";
e.Result = outParameters;
}
}
private void bgwMain_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
this.Cursor = Cursors.Default;
BackgroundWorkerTasks task = BackgroundWorkerTasks.Unknown;
// Report the result
if (e.Error != null)
{
MessageBox.Show(e.Error.Message, this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
else if (e.Cancelled)
{
if (this.Visible == true && _formIsClosing == false)
{
MessageBox.Show("Operation cancelled", this.Text, MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
else
{
string message = "";
object[] parameters = e.Result as object[];
if ((parameters != null) && (parameters.Length > 1))
{
message = parameters[1] as string;
task = (BackgroundWorkerTasks)parameters[0];
if (task == BackgroundWorkerTasks.AddServicesFromHydroPortal ||
task == BackgroundWorkerTasks.AddServicesFromFile ||
task == BackgroundWorkerTasks.AddServicesFromHydroServer)
{
dgvAddServices.Enabled = true;
List <string[]> rowsToAdd = parameters[2] as List <string[]>;
foreach (string[] row in rowsToAdd)
{
int rowIndex = dgvAddServices.Rows.Add(row);
SelectDataGridViewRow(dgvAddServices, rowIndex);
//dgvAddServices.Rows[dgvAddServices.Rows.Add ( row )].Cells["Selected"].Value = true;
}
this.ActiveControl = btnUpdate;
}
else if (task == BackgroundWorkerTasks.CheckForExisingServices)
{
List <int> rowsToSelect = parameters[2] as List <int>;
foreach (int row in rowsToSelect)
{
dgvAddServices.Rows[row].Cells["Selected"].Value = true;
}
this.ActiveControl = btnCheckExisting;
}
else if (task == BackgroundWorkerTasks.UpdateDatabase)
{
this.ActiveControl = btnUpdate;
}
}
MessageBox.Show(message, this.Text, MessageBoxButtons.OK, MessageBoxIcon.Information);
}
// Enable controls that were disabled until the asynchronous operation was finished
RestoreFormFromWork();
if (_formIsClosing == true)
{
_formIsClosing = false;
Hide();
}
else if (task == BackgroundWorkerTasks.UpdateDatabase)
{
this.DialogResult = System.Windows.Forms.DialogResult.OK;
}
}
