private async void retrieveBtn_Click(object sender, EventArgs e)
{
if (KeyComboBox.SelectedItem == null)
{
MessageBox.Show("Please select a key.");
return;
}
if (!VerifySelectedBroker())
{
return;
}
var item = KeyComboBox.SelectedItem as ToolStripMenuItem;
var key = item.Tag as Key;
try
{
var value = XmlToObject(await broker.RetrieveDataAsync(key)) as string;
valueRichBox.ResetText();
valueRichBox.AppendText(value);
}
catch (ArgumentException ex)
{
MessageBox.Show(ex.Message);
}
catch (Exception)
{
MessageBox.Show("Cannot connect to server.");
}
}
