如何在c#中将富文本框的背景颜色设置为透明

本文介绍了如何在c#中将富文本框的背景颜色设置为透明的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我想在c#中将richtextbox的背景色设置为透明你能帮我吗它是一个 winform 应用程序

I want to set the background color of the richtextbox to transparent In c# can you help me please Its a winform application

推荐答案

public class TransparentLabel : RichTextBox { public TransparentLabel() { this.SetStyle(ControlStyles.Opaque, true); this.SetStyle(ControlStyles.OptimizedDoubleBuffer, false); this.TextChanged += TransparentLabel_TextChanged; this.VScroll += TransparentLabel_TextChanged; this.HScroll += TransparentLabel_TextChanged; } void TransparentLabel_TextChanged(object sender, System.EventArgs e) { this.ForceRefresh(); } protected override CreateParams CreateParams { get { CreateParams parms = base.CreateParams; parms.ExStyle |= 0x20; // Turn on WS_EX_TRANSPARENT return parms; } } public void ForceRefresh() { this.UpdateStyles(); } }

答案是这样的: