RadExpander close unexpectedly

[Pierre]

Hi, I got a RadExpender with a Textbox that call a viewmodel function when I hit the EnterKey.

private void SourceLotTxt_KeyDown(object sender, KeyRoutedEventArgs e)
{
    if (e.Key == VirtualKey.Enter)
    {
        _viewModel.SourceLotTxtEntered(SourceLotTxt.Text);
    }
}

In the ViewModel function I call an external service web to check if the text entered are valid (with an await call). In the Service call function when I run this line:

var response = await client.PostAsync(_baseWSBaultar.ToString(), content);

For an unknown reason, the RadExpander close is panes.

Any suggestion? Un bug in the RadExpander? I am on the last version 2017.2.502.45

[Nasko]

Hello Pierre,

We are already aware of the observed by you issue. However, I am glad to inform you that it has already been fixed. The fix will be available with our next official release R2 2017 SP1 that should be available by the middle of June.

We apologize for the inconvenience the issue might be causing you and hope the provided information will be helpful for you.

Regards,
Nasko
Progress Telerik