ProgressBar控件跟上一文介紹的TrackBar控件一樣，并沒有提供一個(gè)方法可以方便的實(shí)現(xiàn)重繪，需要自己重載WM_PAINT消息來實(shí)現(xiàn)重繪。先來看看最終實(shí)現(xiàn)的效果：

　　為了讓ProgressBar控件可以顯示進(jìn)度完成的信息，添加了一個(gè)屬性：FormatString來格式化進(jìn)度條完成信息，通過這個(gè)屬性，可以定義自己需要顯示什么樣式的信息，默認(rèn)為：{0:0.0%}，即顯示：50.0%。來看看類視圖：

　　ProgressBar控件的繪制需要處理兩種樣式，一種是連續(xù)的顯示((ProgressBarStyle.Continuous)，一種是不停的滾動顯示(ProgressBarStyle.Marquee)。繪制沒有什么特別難的地方，就是需要自己計(jì)算已完成進(jìn)度對應(yīng)的控件的位置，繪制滾動樣式的的時(shí)候，需要通過一個(gè)定時(shí)器(Timer)定時(shí)改變滾動條的位置和刷新控件。特別的是，這次利用BufferedGraphics來實(shí)現(xiàn)雙緩沖，效果也還不錯(cuò)。ProgressBar控件主要是通過DrawProgressBar函數(shù)來繪制的，來看看這個(gè)函數(shù)的代碼：

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　　 ProgressBar控件的美化就為你介紹到這里，希望對你了解ProgressBar控件的美化換膚有所幫助。