private void btnDeleteTask_Click(object sender, RoutedEventArgs e)
{
if (lstManageTasks.SelectedIndex == -1)
{
MessageBox.Show("Please select a task to delete!", "Invalid Input",
MessageBoxButton.OK, MessageBoxImage.Exclamation);
return;
}
Task t = (Task)lstManageTasks.SelectedItem;
TasksHelper client = new TasksHelper();
try
{
client.DeleteTask(user, event_.EventID, t.TaskID);
int currIdx = cboRole.SelectedIndex;
cboRole.SelectedIndex = -1;
cboRole.SelectedIndex = currIdx;
MessageBox.Show("Operation Succeeded");
}
catch (Exception ex)
{
MessageBox.Show("An Error have occured: " + ex.Message, "Error",
MessageBoxButton.OK, MessageBoxImage.Error);
}
finally
{
client.Close();
}
LoadTasks();
}