콘트롤에 더블버퍼 사용

출처1 : https://stackoverflow.com/questions/87795/how-to-prevent-flickering-in-listview-when-updating-a-single-listviewitems-text#15268338

출처2 : https://stackoverflow.com/questions/1522605/using-extension-methods-in-net-2-0

public static void DoubleBuffered(this Control control, bool enable)

{

    var doubleBufferPropertyInfo = control.GetType().GetProperty("DoubleBuffered", BindingFlags.Instance | BindingFlags.NonPublic);

    doubleBufferPropertyInfo.SetValue(control, enable, null);

}

this.DoubleBuffered(true);

.net 3.5 보다 낮은 버전일 때는 아래와 같은 구문을 프로젝트에 한 번만 작성해 주면된다.

// you need this once (only), and it must be in this namespace

namespace System.Runtime.CompilerServices

{

    [AttributeUsage(AttributeTargets.Assembly | AttributeTargets.Class

         | AttributeTargets.Method)]

    public sealed class ExtensionAttribute : Attribute { }

}