【IT168技术文档】
拖动一个trackBar上来,很简单的打入如下代码:
private void trackBar1_ValueChanged(object sender, System.EventArgs e) { this.Opacity=(float)(100-this.trackBar1.Value*2)/100; }
private void trackBar1_ValueChanged(object sender, System.EventArgs e) { this.Opacity=(float)(100-this.trackBar1.Value*2)/100; }