苏飞论坛

标题: 进度条绘制百分比的问题！ [打印本页]

作者: cxkj518 时间: 2014-11-18 09:10
标题: 进度条绘制百分比的问题！

C# 绘制进度条

1. 用lable 显示，背景颜色去不掉，
2. 用 GDI+ 绘制但是闪烁很厉害！
请大家帮忙分析下，这种情况怎么解决！

代码如下！

public partial class Form1 : Form
{
      public Form1()
      {
         InitializeComponent();
      }

      private void Form1_Load(object sender, EventArgs e)
      {
         Control.CheckForIllegalCrossThreadCalls = false;

      }

      private void button1_Click(object sender, EventArgs e)
      {

         Thread th = new Thread(PB1);
         th.IsBackground=true;
         th.Start();

   }

   void  PB1()
      {

         string strnumber;

         for (int i = 0; i <= 5000; i++)
         {
            Thread.Sleep(10);
         strnumber = ((i*100)/5000).ToString() + "%";
         //Bitmap bmp = new Bitmap(84, 28);

         Graphics g = progressBar1.CreateGraphics();

         g.DrawString(strnumber, new Font("宋体", 20, FontStyle.Bold), Brushes.Blue, new PointF(progressBar1.Width/2,progressBar1.Height/2-15));
         progressBar1.Value = i;

         //  pictureBox1.Image = bmp;

            label1.Text = ((i * 100) / 5000).ToString() + "%";
         }

         //string strnumber;

         //for (int i = 0; i <= 5000; i++)
         //{
         // Thread.Sleep(10);
         // strnumber = ((i * 100) / 5000).ToString() + "%";
         // Bitmap bmp = new Bitmap(84, 28);

         // Graphics g = Graphics.FromImage(bmp);

         // g.DrawString(strnumber, new Font("宋体", 10, FontStyle.Bold), Brushes.Blue, new PointF(bmp.Width / 2, bmp.Height / 2 - 10));
         // progressBar1.Value = i;

         // pictureBox1.Image = bmp;

         // label1.Text = ((i * 100) / 5000).ToString() + "%";
         //}

(, 下载次数: 146)