private async void SendMessageButton_OnClick(object sender, RoutedEventArgs e)
{
try
{
if (!_client.IsConnected)
{
throw new InvalidOperationException("client not connected");
}
if (string.IsNullOrEmpty(_viewModel.InputText))
{
throw new NullReferenceException("Input must have a value");
}
IsEnabled = false;
await _client.SendMessage(_viewModel.InputText);
}
catch (Exception ex)
{
MessageBox.Show(this.GetParentWindowRecurs(), ex.Message);
}
finally
{
IsEnabled = true;
}
}