百分跪求ASP.net 能画饼图的控件或代码！！！！！在线等。。。
如题，我想在web程序中画一个折线统计图或饼图。。。。跪求大神出手，源码，第三方控件什么的都行，求实现！！！本人新手一个。。。在线等！！！！ asp.net web 统计图??饼图
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在ASP.NET页面中实现数据饼图
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有MSChart控件，你试试
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你可以试试第三方图表控件ChartDirector，使用简单，图表精细，尤其适合用于Web图表开发
参考用ChartDirector绘制饼图
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dotnetCHARTING
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open flash Chart
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MSCHART控件
private void draw01()//houdu1
{
string connStr = ConfigurationManager.ConnectionStrings["connStr"].ToString();
using (OleDbConnection conn = new OleDbConnection(connStr))
{
conn.Open();
DataSet ds = new DataSet();
OleDbDataAdapter da = new OleDbDataAdapter();
string com = "select top 8 [ID],[DateAndTime],[HouDu1] from [No1Gear] order by [ID] desc ";
TextBox4.Attributes.Add("onkeypress", "this.value = this.value.replace(/[^0-9]/g,'')");
string com2 = "select top " + TextBox4.Text.ToString() + " [ID],[DateAndTime],[HouDu1] from [No1Gear] order by [ID] desc";
int num;
if (TextBox4.Text.ToString() == ""
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TextBox4.Text.ToString() == "0")
{
da.SelectCommand = new OleDbCommand(com, conn);
num = 0;
}
else
{
da.SelectCommand = new OleDbCommand(com2, conn);
num = Convert.ToInt32(TextBox4.Text.ToString());
}
da.Fill(ds);
Chart1.DataSource = ds;
Chart1.Titles.Clear();
Chart1.Series.Clear();
Chart1.ChartAreas.Clear();
Chart1.Legends.Clear();
string s1 = "1#测点";
Chart1.ChartAreas.Add("1#测点");
Chart1.Series.Add(s1);
Chart1.Series[s1].ChartType = SeriesChartType.Line;
Chart1.Series[s1].Color = Color.Tomato;
if (num > 40)
{
Chart1.Series[s1].IsValueShownAsLabel = false;
Chart1.ChartAreas[s1].AxisX.IntervalOffset = 1;
Chart1.ChartAreas[s1].AxisX.Interval = 10;
}
else if (num >= 20 && num <= 40)
{
Chart1.Series[s1].IsValueShownAsLabel = false;
Chart1.ChartAreas[s1].AxisX.IntervalOffset = 1;
Chart1.ChartAreas[s1].AxisX.Interval = 5;
}
else if (num < 20 && num > 8)
{
Chart1.Series[s1].IsValueShownAsLabel = true;
Chart1.ChartAreas[s1].AxisX.IntervalOffset = 1;
Chart1.ChartAreas[s1].AxisX.Interval = 2;
}
else if (num <= 8)
{
Chart1.Series[s1].IsValueShownAsLabel = true;
Chart1.ChartAreas[s1].AxisX.IntervalOffset = 1;
Chart1.ChartAreas[s1].AxisX.Interval = 2;
}
Chart1.Series[s1].BorderWidth = 2;
foreach (DataRow row in ds.Tables[0].Rows)
{
string colName = ds.Tables[0].Columns[1].ColumnName;
string date = row[colName].ToString();
string tmp = ds.Tables[0].Columns[2].ColumnName;
string test = row[tmp].ToString();
Chart1.Series[s1].Points.AddXY(date, test);
}
ds.Clear();
}
}
int bufferspace = 15;
int legendheight = fontlegend.Height * 10 + bufferspace; //高度
int titleheight = fonttitle.Height + bufferspace;
int height = width + legendheight + titleheight + bufferspace;//白色背景高
int pieheight = width;
Rectangle pierect = new Rectangle(0, titleheight, width, pieheight);
//加上各种随机色
System.Collections.ArrayList colors = new System.Collections.ArrayList();
Random rnd = new Random();
for (int i = 0; i < 2; i++) colors.Add(new SolidBrush(Color.FromArgb(rnd.Next(255), rnd.Next(255), rnd.Next(255))));
//创建一个bitmap实例
Bitmap objbitmap = new Bitmap(width, height);
Graphics objgraphics = Graphics.FromImage(objbitmap);
//画一个白色背景
objgraphics.FillRectangle(new SolidBrush(Color.White), 0, 0, width, height);
//画一个亮黄色背景
objgraphics.FillRectangle(new SolidBrush(Color.Beige), pierect);
//以下为画饼图(有几行row画几个)
float currentdegree = 0.0f;
//画通过人数
objgraphics.FillPie((SolidBrush)colors[1], pierect, currentdegree,Convert.ToSingle( 82.0) / Total * 360);
currentdegree += Convert.ToSingle(82.0) / Total * 360;
//未通过人数饼状图
objgraphics.FillPie((SolidBrush)colors[0], pierect, currentdegree,((Convert.ToSingle(94.0)) - (Convert.ToSingle(82.0))) / Total * 360);
currentdegree += ((Convert.ToSingle(94.0)) - (Convert.ToSingle(82.0))) / Total * 360;
//以下为生成主标题
SolidBrush blackbrush = new SolidBrush(Color.Black);
SolidBrush bluebrush = new SolidBrush(Color.Blue);
string title = " 机关单位成绩统计饼状图: " + "\n \n\n";
StringFormat stringFormat = new StringFormat();
stringFormat.Alignment = StringAlignment.Center;
stringFormat.LineAlignment = StringAlignment.Center;
objgraphics.DrawString(title, fonttitle, blackbrush, new Rectangle(0, 0, width, titleheight), stringFormat);
//列出各字段与得数目
objgraphics.DrawRectangle(new Pen(Color.Red, 2), 0, height + 10 - legendheight, width, legendheight + 50);
objgraphics.DrawString("----------------统计信息------------------",fontlegend, bluebrush, 20, height - legendheight + fontlegend.Height * 1 + 1);
objgraphics.DrawString("统计单位: 测试" ,fontlegend, blackbrush, 20, height - legendheight + fontlegend.Height * 3 + 1);
objgraphics.DrawString("统计年份: 2012年",fontlegend, blackbrush, 20, height - legendheight + fontlegend.Height * 4 + 1);
objgraphics.DrawString("统计期数: 第一期",fontlegend, blackbrush, 20, height - legendheight + fontlegend.Height * 5 + 1);
objgraphics.FillRectangle((SolidBrush)colors[1], 5, height - legendheight + fontlegend.Height * 8 + 1, 10, 10);
objgraphics.DrawString("报名总人数: " + Convert.ToString(Convert.ToSingle(94.0)), fontlegend, blackbrush, 20, height - legendheight + fontlegend.Height * 7 + 1);
objgraphics.FillRectangle((SolidBrush)colors[0], 5, height - legendheight + fontlegend.Height * 9 + 1, 10, 10);
objgraphics.DrawString("通过总人数: " + Convert.ToString(Convert.ToSingle(82.0)), fontlegend, blackbrush, 20, height - legendheight + fontlegend.Height * 8 + 1);
objgraphics.DrawString("未通过人数: " + ((Convert.ToSingle(94.0)) - (Convert.ToSingle(82.0))), fontlegend, blackbrush, 20, height - legendheight + fontlegend.Height * 9 + 1);
objgraphics.DrawString("通过率: " + Convert.ToString((Convert.ToSingle(82.0) / Convert.ToSingle(94.0)) * 100) + " %", fontlegend, blackbrush, 20, height - legendheight + fontlegend.Height * 10 + 1);
//Response.ContentType = "image/Jpeg";
//objbitmap.Save(Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
pictureBox1.Width = objbitmap.Width;
pictureBox1.Height = objbitmap.Height;
objgraphics.Dispose();
//objbitmap.Dispose();
pictureBox1.Width = objbitmap.Width;
pictureBox1.BackgroundImage = objbitmap;
}
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