ThoughtWorks.VisualStudio.Card.AddPropertyFilterToPostData C# (CSharp) Method

        internal void AddPropertyFilterToPostData(string name, string value)
        {
            MingleCard.PostData.Add(String.Format(CultureInfo.InvariantCulture, "card[properties][][name]={0}", name).Trim());
            MingleCard.PostData.Add(String.Format(CultureInfo.InvariantCulture, "card[properties][][value]={0}", value).Trim());
        }

        private void OnPropertyComboBoxSelectionChanged(object sender, RoutedEventArgs e)
        {
            if (!sender.GetType().Name.Equals("ComboBox"))
            {
                return;
            }
            string me       = new StackFrame().GetMethod().Name;
            var    cb       = sender as ComboBox;
            var    property = cb.Tag as CardProperty;

            if (property.IsCardValued)
            {
                return;
            }
            _thisCard.AddPropertyFilterToPostData((cb.DataContext as CardProperty).Name, cb.SelectedValue as string);
            try
            {
                if (!string.IsNullOrEmpty(cardName.Text))
                {
                    _thisCard.Update();
                }
                else
                {
                    MessageBox.Show(ThoughtWorksCoreLib.Resources.MingleCardNameNullOrEmpty);
                }
            }
            catch (Exception ex)
            {
                TraceLog.Exception(me, ex);
                MessageBox.Show(ex.Message);
            }

            e.Handled = true;
        }