WinForms: implementing Data Binding on ComboBox Populated from an Async Method
I'm refactoring my project and I'm sure I'm missing something obvious here, but Hey everyone, I'm running into an issue that's driving me crazy... I'm working with an scenario where my ComboBox is not getting updated properly when it's bound to a data source that is populated asynchronously. I'm using WinForms with .NET Framework 4.8, and I have an async method that fetches data from a web API, which I then want to bind to a ComboBox. Here's the code where I'm setting up the ComboBox: ```csharp private async void LoadComboBoxData() { var data = await FetchDataFromApiAsync(); comboBox1.DataSource = data; comboBox1.DisplayMember = "Name"; comboBox1.ValueMember = "Id"; } ``` The `FetchDataFromApiAsync` method looks something like this: ```csharp private async Task<List<MyData>> FetchDataFromApiAsync() { using (HttpClient client = new HttpClient()) { var response = await client.GetStringAsync("https://api.example.com/data"); return JsonConvert.DeserializeObject<List<MyData>>(response); } } ``` After calling `LoadComboBoxData` in my form's constructor, I noticed that the ComboBox doesn't display any items until I manually resize the form. I've tried forcing a repaint using `comboBox1.Refresh()`, but it didn’t work. The ComboBox remains empty and shows no errors. I suspect this might be an scenario with how the UI thread handles the async operation, but I’m not sure how to properly synchronize the data binding. I've also checked that the data returned from the API is valid and contains the expected values. Is there a recommended approach to ensure that the ComboBox updates correctly after the async data fetch? Any insights would be greatly appreciated! Am I missing something obvious? I've been using C# for about a year now. Could someone point me to the right documentation?