Incorrect async/await working, Excel events in Excel Application Level Add-in
This is a long-standing issue with Office plugins: they don't provide a SynchronizationContext
.
As I mention on my blog, you can work around this by ensuring you have a proper SynchronizationContext
. This is a bit hacky, but it works:
private async void SearchPaneButton_Click(object sender, EventArgs e)
{
if (SynchronizationContext.Current == null)
SynchronizationContext.SetSynchronizationContext(new WindowsFormsSynchronizationContext());
await SearchAsync();
}
private async Task SearchAsync()
{
var searchText = SearchTextBox.Text;
SearchPaneButton.Text = "Loading…";
var data = await new DataServiceClient().GetDataAsync(searchText);
SearchPaneButton.Text = "Search";
ToggleWorkbookEvents();
}
As far as the "toggling events" problem goes, I have no idea.