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WinForms: guide with Dynamically Adding Controls to FlowLayoutPanel implementation guide Properly

👀 Views: 330 💬 Answers: 1 📅 Created: 2025-06-17
winforms flowlayoutpanel dynamic-controls C#

I'm migrating some code and I'm stuck trying to I'm a bit lost with I'm relatively new to this, so bear with me... After trying multiple solutions online, I still can't figure this out. I'm experiencing a frustrating scenario with a `FlowLayoutPanel` in my WinForms application. I'm dynamically adding `TextBox` controls to a `FlowLayoutPanel` during runtime, but the newly added controls aren't displaying as expected. The controls appear to be added, but they are not visible until I resize the form, which forces a redraw. Here’s the relevant snippet of my code: ```csharp private void AddTextBoxButton_Click(object sender, EventArgs e) { TextBox newTextBox = new TextBox(); newTextBox.Width = 200; flowLayoutPanel1.Controls.Add(newTextBox); flowLayoutPanel1.Refresh(); // Tried forcing a refresh } ``` I’ve also tried calling `flowLayoutPanel1.Invalidate()` and `flowLayoutPanel1.Update()`, but nothing seems to help. I’m using .NET Framework 4.8 and Visual Studio 2019. My `FlowLayoutPanel` has `AutoScroll` enabled and is docked to the top of the form. The scenario occurs regardless of whether the form is maximized or not. I also checked that the panel’s `Visible` property is set to `true`. I've searched for similar issues online and even tried adjusting the `FlowLayoutPanel`'s `WrapContents` property, but it didn’t resolve the question. Is there anything else I can try to ensure that the newly added controls are displayed immediately? I'm working on a service that needs to handle this. How would you solve this? I'm working on a service that needs to handle this. What am I doing wrong? I'm working on a microservice that needs to handle this. Any advice would be much appreciated. This is part of a larger desktop app I'm building. Could someone point me to the right documentation? Any suggestions would be helpful.