/**////<summary>
///Thismethodiswhereyougenerateyourgraph.
///</summary>
///<paramname="masterPane">YouareprovidedwithaMasterPaneinstancethat
///containsoneGraphPanebydefault(accessibleviamasterPane[0]).</param>
///<paramname="g">AgraphicsinstancesoyoucaneasilymakethecalltoAxisChange()</param>
privatevoidOnRenderGraph(ZedGraphWebzgw,Graphicsg,MasterPanemasterPane)
{
//GettheGraphPanesowecanworkwithit
GraphPanemyPane=masterPane[0];

//Setthetitlesandaxislabels
myPane.Title.Text="访问统计折线图";
myPane.XAxis.Title.Text="日期";
myPane.YAxis.Title.Text="访问量";

//CreateanewDataSourcePointListtohandlethedatabaseconnection
DataSourcePointListdspl=newDataSourcePointList();


//Specifythetableasthedatasource
dspl.DataSource=GetData().Tables[0];
//TheXdatawillcomefromthe"Period"column
dspl.XDataMember="datere";
//TheYdatawillcomefromthe"Forecast"column
dspl.YDataMember="countre";
//TheZdataarenotused
dspl.ZDataMember=null;

//dspl.TagDataMember="DJAHolt'sforecasting";

//Generateabluecurvewithcirclesymbols,and"MyCurve2"inthelegend
LineItemmyCurve2=myPane.AddCurve("MyCurve2",dspl,Color.Blue,
SymbolType.Circle);
//Filltheareaunderthecurvewithawhite-redgradientat45degrees
myCurve2.Line.Fill=newFill(Color.White,Color.Red,45F);
//Makethesymbolsopaquebyfillingthemwithwhite
myCurve2.Symbol.Fill=newFill(Color.White);

//SettheXAxistodatetype
myPane.XAxis.Type=AxisType.Date;
myPane.XAxis.CrossAuto=true;

//Filltheaxisbackgroundwithacolorgradient
myPane.Chart.Fill=newFill(Color.White,Color.LightGoldenrodYellow,45F);

masterPane.AxisChange(g);
}


protectedDataSetGetData()
{
SqlConnectionconn=newSqlConnection("server=.;database=hodovoddb;uid=sa;pwd=sa");
SqlDataAdapterda=newSqlDataAdapter("selectcountre,daterefromt_BRowseRecord",conn);
DataSetds=newDataSet();
da.Fill(ds);
returnds;
}
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