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dotnet-desktop-guide/framework/winforms/controls/multithreading-in-windows-forms-controls.md

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+---
+title: Multithreading in Controls
+ms.date: "03/30/2017"
+helpviewer_keywords: 
+  - "BackgroundWorker component"
+  - "threading [Windows Forms], controls"
+ms.assetid: c311d652-0f26-45fa-bdcc-b1615d73ce4e
+---
+# Multithreading in Windows Forms Controls
+In many applications, you can make your user interface (UI) more responsive by performing time-consuming operations on another thread. A number of tools are available for multithreading your Windows Forms controls, including the <xref:System.Threading> namespace, the <xref:System.Windows.Forms.Control.BeginInvoke%2A?displayProperty=nameWithType> method, and the `BackgroundWorker` component.  
+  
+> [!NOTE]
+> The `BackgroundWorker` component replaces and adds functionality to the <xref:System.Threading> namespace and the <xref:System.Windows.Forms.Control.BeginInvoke%2A?displayProperty=nameWithType> method; however, these are retained for both backward compatibility and future use, if you choose. For more information, see [BackgroundWorker Component Overview](backgroundworker-component-overview.md).  
+  
+## In This Section  
+ [How to: Make Thread-Safe Calls to Windows Forms Controls](how-to-make-thread-safe-calls-to-windows-forms-controls.md)  
+ Shows how to make thread-safe calls to Windows Forms controls.  
+  
+ [How to: Use a Background Thread to Search for Files](how-to-use-a-background-thread-to-search-for-files.md)  
+ Shows how to use the <xref:System.Threading> namespace and the <xref:System.Windows.Forms.Control.BeginInvoke%2A> method to search for files asynchronously.  
+  
+## Reference  
+ <xref:System.ComponentModel.BackgroundWorker>  
+ Documents a component that encapsulates a worker thread for asynchronous operations.  
+  
+ <xref:System.Media.SoundPlayer.LoadAsync%2A>  
+ Documents how to load a sound asynchronously.  
+  
+ <xref:System.Windows.Forms.PictureBox.LoadAsync%2A>  
+ Documents how to load an image asynchronously.  
+  
+## Related Sections  
+ [How to: Run an Operation in the Background](how-to-run-an-operation-in-the-background.md)  
+ Shows how to perform a time-consuming operation with the <xref:System.ComponentModel.BackgroundWorker> component.  
+  
+ [BackgroundWorker Component Overview](backgroundworker-component-overview.md)  
+ Provides topics that describe how to use the <xref:System.ComponentModel.BackgroundWorker> component for asynchronous operations.