第一个简单的chart： spline// Create new data series and set it's visualattributes
Series series = new Series("Spline");
series.ChartType = SeriesChartType.Spline;
series.BorderWidth = 3;
series.ShadowOffset = 2;
// Populate new series with data
series.Points.AddY(67);
series.Points.AddY(57);
series.Points.AddY(83);
series.Points.AddY(23);
series.Points.AddY(70);
series.Points.AddY(60);
series.Points.AddY(90);
series.Points.AddY(20);
// Add series into the chart's series collection
Chart1.Series.Add(series);
同时显示2条曲线
// Populate series with random data
Random random = new Random();
for (int pointIndex = 0; pointIndex < 10;pointIndex++)
{
Chart1.Series["Series1"].Points.AddY(random.Next(45, 95));
Chart1.Series["Series2"].Points.AddY(random.Next(5, 75));
}
// Set series chart type
Chart1.Series["Series1"].ChartType = SeriesChartType.Line;
Chart1.Series["Series2"].ChartType = SeriesChartType.Spline;
// Set point labels
Chart1.Series["Series1"].IsValueShownAsLabel = true;
Chart1.Series["Series2"].IsValueShownAsLabel = true;
// Enable X axis margin
Chart1.ChartAreas["ChartArea1"].AxisX.IsMarginVisible = true;
// Enable 3D, and show data point marker lines
Chart1.ChartAreas["ChartArea1"].Area3DStyle.Enable3D = true;
Chart1.Series["Series1"]["ShowMarkerLines"] = "True";
Chart1.Series["Series2"]["ShowMarkerLines"] = "True";
显示column类型图
// Create new data series and set it's visual attributes
Series series = new Series("FlowRead");
series.ChartType = SeriesChartType.Column;
series.BorderWidth = 3;
series.ShadowOffset = 2;
// Populate new series with data
series.Points.AddY(67);
series.Points.AddY(57);
series.Points.AddY(83);
series.Points.AddY(23);
series.Points.AddY(70);
series.Points.AddY(60);
series.Points.AddY(90);
series.Points.AddY(20);
// Add series into the chart's series collection
Chart1.Series.Add(series);
很多点，效率还可以
// Fill series data
double yValue = 50.0;
Random random = new Random();
for (int pointIndex = 0; pointIndex < 20000;pointIndex++)
{
yValue = yValue + (random.NextDouble() * 10.0 - 5.0);
Chart1.Series["Series1"].Points.AddY(yValue);
}
// Set fast line chart type
Chart1.Series["Series1"].ChartType = SeriesChartType.FastLine;
}
日期，xy类型
// Create a new random number generator
Random rnd = new Random();
// Data points X value is using current date
DateTime date = DateTime.Now.Date;
// Add points to the stock chart series
for (int index = 0; index < 10; index++)
{
Chart1.Series["Series1"].Points.AddXY(
date, // X value is a date
rnd.Next(40,50)); //Close Y value
// Add 1 day to our X value
date = date.AddDays(1);
}
int-int的xy数据绘图
// Create a new random number generator
Random rnd = new Random();
// Add points to the stock chart series
for (int index = 0; index < 10; index++)
{
Chart1.Series["Series1"].Points.AddXY(
rnd.Next(10,90), // X value is a date
rnd.Next(40,50)); //Close Y value
}
数据库数据，datetime-int类型
string connStr ="server=localhost;database=seis_project;uid=seisprjs;pwd=seisprjs";
SqlConnection myConn = new SqlConnection(connStr);
string selStr = "select 时间,序号 from pub_log_read order by 序号asc";
SqlCommand myCmd = myConn.CreateCommand();
myCmd.CommandText = selStr;
myConn.Open();
SqlDataReader sdr =myCmd.ExecuteReader(CommandBehavior.CloseConnection);
// Since the reader implements and IEnumerable, pass the readerdirectly into
// the DataBindTable method with the name of the Column to be usedas the XValue
Chart1.DataBindTable(sdr, "时间");
sdr.Close();
myConn.Close();
数据库数据2，string-int类型
string connStr ="server=localhost;database=seis_project;uid=seisprjs;pwd=seisprjs";
SqlConnection myConn = new SqlConnection(connStr);
string selStr = "select 帐号,count(帐号) as 次数 from pub_log_read groupby 帐号 order by 帐号 asc";
SqlCommand myCmd = myConn.CreateCommand();
myCmd.CommandText = selStr;
myConn.Open();
SqlDataReader sdr =myCmd.ExecuteReader(CommandBehavior.CloseConnection);
// Since the reader implements and IEnumerable, pass the readerdirectly into
// the DataBindTable method with the name of the Column to be usedas the XValue
Chart1.DataBindTable(sdr, "帐号");
sdr.Close();
myConn.Close();
数据库绑定3-error？
string connStr ="server=localhost;database=seis_project;uid=seisprjs;pwd=seisprjs";
SqlConnection myConn = new SqlConnection(connStr);
string selStr = "select 帐号,count(帐号) as 次数 from pub_log_read groupby 帐号 order by 帐号 asc";
SqlCommand myCmd = myConn.CreateCommand();
myCmd.CommandText = selStr;
myConn.Open();
// Set chart data source
Chart1.DataSource = myCmd;
// Set series members names for the X and Y values
Chart1.Series["Series1"].XValueMember = "帐号";
Chart1.Series["Series1"].YValueMembers = "次数";
// Data bind to the selected data source
Chart1.DataBind();
myConn.Close();
数据库4，只绑定y
string connStr ="server=localhost;database=seis_project;uid=seisprjs;pwd=seisprjs";
SqlConnection myConn = new SqlConnection(connStr);
string selStr = "select 序号 from pub_log_read order by 序号asc";
SqlCommand myCmd = myConn.CreateCommand();
myCmd.CommandText = selStr;
myConn.Open();
SqlDataReader sdr =myCmd.ExecuteReader(CommandBehavior.CloseConnection);
// Since the reader implements and IEnumerable, pass the readerdirectly into
// the DataBindTable method with the name of the Column to be usedas the XValue
Chart1.Series[0].Points.DataBindY(sdr);
sdr.Close();
myConn.Close();
数据库5，绑定xy
string connStr ="server=localhost;database=seis_project;uid=seisprjs;pwd=seisprjs";
SqlConnection myConn = new SqlConnection(connStr);
string selStr = "select 帐号,count(帐号) as 次数 from pub_log_read groupby 帐号 order by 帐号 desc";
SqlCommand myCmd = myConn.CreateCommand();
myCmd.CommandText = selStr;
myConn.Open();
SqlDataReader sdr =myCmd.ExecuteReader(CommandBehavior.CloseConnection);
// Since the reader implements and IEnumerable, pass the readerdirectly into
// the DataBindTable method with the name of the Column to be usedas the XValue
Chart1.Series[0].Points.DataBindXY(sdr, "帐号",sdr,"次数");
sdr.Close();
myConn.Close();
数据库6，支持显示参数
// Resolve the address to the Access database
stringfileNameString = this.MapPath(".");
fileNameString += "..\..\..\data\chartdata.mdb";
//Initialize a connectionstring
stringmyConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;DataSource=" + fileNameString;
// Definethe databasequery
stringmySelectQuery="SELECT * FROM REPSALES WHERE Year=2004;";
// Createa database connection object using the connectionstring
OleDbConnection myConnection = newOleDbConnection(myConnectionString);
// Create adatabase command on the connection usingquery
OleDbCommandmyCommand = new OleDbCommand(mySelectQuery, myConnection);
// Open theconnection
myCommand.Connection.Open();
// Create adatabasereader
OleDbDataReader myReader =myCommand.ExecuteReader(CommandBehavior.CloseConnection);
// Since thereader implements and IEnumerable, pass the reader directlyinto
// theDataBind method with the name of the Columns assigned to theappropriateproperty
Chart1.Series["Series1"].Points.DataBind(
myReader,
"Name",
"Sales",
"Tooltip=Year, Label=Commissions{C2}");
// Closethe reader and the connection
myReader.Close();
myConnection.Close();
数据库7，支持多line
// Resolve the address to the Access database
stringfileNameString = this.MapPath(".");
fileNameString += "..\..\..\data\chartdata.mdb";
//Initialize a connectionstring
stringmyConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;DataSource=" + fileNameString;
// Definethe databasequery
stringmySelectQuery="SELECT * FROM REPSALES;";
// Createa database connection object using the connectionstring
OleDbConnection myConnection = newOleDbConnection(myConnectionString);
// Create adatabase command on the connection usingquery
OleDbCommandmyCommand = new OleDbCommand(mySelectQuery, myConnection);
// Open theconnection
myCommand.Connection.Open();
// Create adatabasereader
OleDbDataReader myReader =myCommand.ExecuteReader(CommandBehavior.CloseConnection);
// Data bindchart to a table where all rows are grouped in series by the "Name"column
Chart1.DataBindCrossTable(
myReader,
"Name",
"Year",
"Sales",
"Label=Commissions{C}");
// Closethe reader and the connection
myReader.Close();
myConnection.Close();
数据库8，按照行添加数据
// Resolve the address to the Access database
stringfileNameString = this.MapPath(".");
fileNameString += "..\..\..\data\chartdata.mdb";
//Initialize a connectionstring
stringmyConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;DataSource=" + fileNameString;
// Definethe databasequery
stringmySelectQuery="SELECT * FROM SALESCOUNTS;";
// Createa database connection object using the connectionstring
OleDbConnection myConnection = newOleDbConnection(myConnectionString);
// Create adatabase command on the connection usingquery
OleDbCommandmyCommand = new OleDbCommand(mySelectQuery, myConnection);
// Open theconnection
myCommand.Connection.Open();
//Initializes a new instance of the OleDbDataAdapter class
OleDbDataAdapter myDataAdapter = new OleDbDataAdapter();
myDataAdapter.SelectCommand = myCommand;
//Initializes a new instance of the DataSet class
DataSetmyDataSet = new DataSet();
// Addsrows in the DataSet
myDataAdapter.Fill(myDataSet,"Query");
foreach(DataRow row in myDataSet.Tables["Query"].Rows)
{
// For each Row add a new series
string seriesName = row["SalesRep"].ToString();
Chart1.Series.Add(seriesName);
Chart1.Series[seriesName].ChartType = SeriesChartType.Line;
Chart1.Series[seriesName].BorderWidth = 2;
for(int colIndex = 1; colIndex <myDataSet.Tables["Query"].Columns.Count; colIndex++)
{
// For each column (column 1 and onward) add the value as apoint
string columnName =myDataSet.Tables["Query"].Columns[colIndex].ColumnName;
int YVal = (int) row[columnName];
Chart1.Series[seriesName].Points.AddXY(columnName, YVal);
}
}
DataGrid.DataSource = myDataSet;
DataGrid.DataBind();
// Closesthe connection to the data source. This is the preferred
// method ofclosing any open connection.
myCommand.Connection.Close();
使用xml数据
// resolve the address to the XML document
stringfileNameString = this.MapPath(".");
stringfileNameSchema = this.MapPath(".");
fileNameString += "..\..\..\data\data.xml";
fileNameSchema += "..\..\..\data\data.xsd";
//Initializes a new instance of the DataSet class
DataSetcustDS = new DataSet();
// Read XMLschema into the DataSet.
custDS.ReadXmlSchema( fileNameSchema );
// ReadXML schema and data into the DataSet.
custDS.ReadXml( fileNameString );
//Initializes a new instance of the DataView class
DataViewfirstView = new DataView(custDS.Tables[0]);
// Sincethe DataView implements and IEnumerable, pass the reader directlyinto
// theDataBindTable method with the name of the column used for the Xvalue.
Chart1.DataBindTable(firstView, "Name");
使用excel数据
// resolve the address to the Excel file
stringfileNameString = this.MapPath(".");
fileNameString += "..\..\..\data\ExcelData.xls";
// Createconnection object by using the preceding connection string.
string sConn= "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" +
fileNameString + ";Extended Properties="Excel8.0;HDR=YES"";
OleDbConnection myConnection = new OleDbConnection( sConn );
myConnection.Open();
// Thecode to follow uses a SQL SELECT command to display the data fromthe worksheet.
// Createnew OleDbCommand to return data from worksheet.
OleDbCommandmyCommand = new OleDbCommand( "Select * From [data1$A1:E25]",myConnection );
// createa databasereader
OleDbDataReader myReader =myCommand.ExecuteReader(CommandBehavior.CloseConnection);
//Populate the chart with data in the file
Chart1.DataBindTable(myReader, "HOUR");
// closethe reader and the connection
myReader.Close();
myConnection.Close();
使用csv数据
// Filename of the CSV file
string file= "DataFile.csv";
// Getthe path of the CSV file
string path= this.MapPath(".");
path +="..\..\..\data";
// Createa select statement and a connection string.
stringmySelectQuery = "Select * from " + file;
stringConStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+
path+ ";Extended Properties="Text;HDR=No;FMT=Delimited"";
OleDbConnection myConnection = new OleDbConnection(ConStr);
// Createa database command on the connection using query
OleDbCommandmyCommand = new OleDbCommand(mySelectQuery, myConnection);
// Openthe connection and create the reader
myCommand.Connection.Open();
OleDbDataReader myReader =myCommand.ExecuteReader(CommandBehavior.CloseConnection);
// Column1 is a time value, column 2 is a double
// Databindthe reader to the chart using the DataBindXY method
Chart1.Series[0].Points.DataBindXY(myReader, "1", myReader,"2");
// Closeconnection and data reader
myReader.Close();
myConnection.Close();
数组绘图
// Initialize an array of doubles
double[] yval = { 2, 6, 4, 5, 3 };
// Initialize an array of strings
string[] xval = { "Peter", "Andrew", "Julie", "Mary", "Dave" };
// Bind the double array to the Y axis points of the Default dataseries
Chart1.Series["Series1"].Points.DataBindXY(xval, yval);
数据库9，dataview// Resolve the address to the Access database
stringfileNameString = this.MapPath(".");
fileNameString += "..\..\..\data\chartdata.mdb";
//Initialize a connectionstring
stringmyConnectionString = "PROVIDER=Microsoft.Jet.OLEDB.4.0;DataSource=" + fileNameString;
// Definethe databasequery
stringmySelectQuery="SELECT * FROM REPS;";
// Createa database connection object using the connectionstring
OleDbConnection myConnection = newOleDbConnection(myConnectionString);
// Create adatabase command on the connection usingquery
OleDbCommandmyCommand = new OleDbCommand(mySelectQuery, myConnection);
// Open theconnection
myCommand.Connection.Open();
//Initializes a new instance of the OleDbDataAdapter class
OleDbDataAdapter custDA = new OleDbDataAdapter();
custDA.SelectCommand = myCommand;
//Initializes a new instance of the DataSet class
DataSetcustDS = new DataSet();
// Addsrows in the DataSet
custDA.Fill(custDS, "Customers");
//Initializes a new instance of the DataView class
DataViewfirstView = new DataView(custDS.Tables[0]);
// Sincethe DataView implements IEnumerable, pass the dataview directlyinto
// the DataBind method with thename of the Columns selected in thequery
Chart1.Series["Default"].Points.DataBindXY(firstView,"Name",firstView, "Sales");
// Closesthe connection to the data source. This is the preferred
// method of closing any openconnection.
myCommand.Connection.Close();
指定坐标轴的数据显示范围
// Create a new random number generator
Random rnd = new Random();
// Add points to the stock chart series
for (int index = 0; index < 10; index++)
{
Chart1.Series["Series1"].Points.AddXY(
rnd.Next(10,90), // X value is a date
rnd.Next(40,50)); //Close Y value
}
Chart1.ChartAreas[0].AxisY.Minimum = 40;
Chart1.ChartAreas[0].AxisY.Maximum = 50;
数据排序// Use point index for drawing the chart
Chart1.Series["Series1"].IsXValueIndexed = true;
// Sortseries points by second Y value
Chart1.DataManipulator.Sort(PointSortOrder.Ascending, "Y2","Series1");
查找数据最大值和最小值
// Find point with maximum Y value and change color
DataPointmaxValuePoint =Chart1.Series["Series1"].Points.FindMaxValue();
maxValuePoint.Color = Color.FromArgb(255, 128, 128);
// Findpoint with minimum Y value and change color
DataPointminValuePoint =Chart1.Series["Series1"].Points.FindMinValue();
minValuePoint.Color = Color.FromArgb(128, 128, 255);
pie显示交互
private void Page_Load(object sender, System.EventArgs e)
{
// Addseries to the chart
Seriesseries = Chart1.Series.Add("My series");
// Setseries and legend tooltips
series.ToolTip = "#VALX: #VAL{C} million";
series.LegendToolTip = "#PERCENT";
series.PostBackValue = "#INDEX";
series.LegendPostBackValue = "#INDEX";
// Populateseries data
double[] yValues = {65.62, 75.54, 60.45, 34.73, 85.42, 32.12, 55.18, 67.15,56.24, 23.65};
string[] xValues = {"France", "Canada", "Germany", "USA", "Italy", "Russia","China", "Japan", "Sweden", "Spain" };
series.Points.DataBindXY(xValues, yValues);
// Setseries visual attributes
series.Type= SeriesChartType.Pie;
series.ShadowOffset = 2;
series.BorderColor = Color.DarkGray;
series.CustomAttributes = "LabelStyle=Outside";
}
protected void Chart1_Click(object sender, ImageMapEventArgse)
{
intpointIndex = int.Parse(e.PostBackValue);
Seriesseries = Chart1.Series["My series"];
if(pointIndex >= 0 &&pointIndex < series.Points.Count)
{
series.Points[pointIndex].CustomProperties +="Exploded=true";
}
}
chart点击事件/// <summary>
/// Page Load event handler.
/// </summary>
protected void Page_Load(object sender, System.EventArgs e)
{
this.Chart1.Click += new ImageMapEventHandler(Chart1_Click);
// directusing of PostBackValue
foreach(Series series in this.Chart1.Series)
{
series.PostBackValue = "series:" + series.Name + ",#INDEX";
}
// transferof click coordinates. getCoordinates is a javascriptfunction.
stringpostbackScript =ClientScript.GetPostBackEventReference(this.Chart1,"chart:@");
this.Chart1.Attributes["onclick"] = postbackScript.Replace("@'", "'+ getCoordinates(event)");
}
/// <summary>
/// Handles the Click event of the Chart1 control.
/// </summary>
/// <param name="sender">The sourceof the event.</param>
/// <param name="e">The<seecref="System.Web.UI.WebControls.ImageMapEventArgs"/>instance containing the eventdata.</param>
protected void Chart1_Click(object sender, ImageMapEventArgse)
{
this.Chart1.Titles["ClickedElement"].Text = "Nothing";
string[]input = e.PostBackValue.Split(':');
if(input.Length == 2)
{
string[] seriesData = input[1].Split(',');
if (input[0].Equals("series"))
{
this.Chart1.Titles["ClickedElement"].Text = "Last Clicked Element:" + seriesData[0] + " - Data Point #" + seriesData[1];
}
else if (input[0].Equals("chart"))
{
// hit test of X and Y click point
HitTestResult hitTestResult =this.Chart1.HitTest(Int32.Parse(seriesData[0]),Int32.Parse(seriesData[1]));
if (hitTestResult != null)
{
this.Chart1.Titles["ClickedElement"].Text = "Last Clicked Element:" + hitTestResult.ChartElementType.ToString();
}
}
}
}