C#實(shí)現(xiàn)圖表中鼠標(biāo)移動(dòng)并顯示數(shù)據(jù)

第C#實(shí)現(xiàn)圖表中鼠標(biāo)移動(dòng)并顯示數(shù)據(jù)本文實(shí)例為大家分享了C#實(shí)現(xiàn)圖表中鼠標(biāo)移動(dòng)并顯示數(shù)據(jù)的具體代碼，供大家參考，具體內(nèi)容如下

效果圖：

1.首先在頁(yè)面上添加一個(gè)label控件并默認(rèn)隱藏：

2.給該圖表添加MouseMove鼠標(biāo)移動(dòng)事件：

///summary

///鼠標(biāo)經(jīng)過(guò)時(shí)發(fā)生

////summary

///paramname="sender"/param

///paramname="e"/param

privatevoidchart1_MouseMove(objectsender,MouseEventArgse)

try

HitTestResultResult=newHitTestResult();

Result=chart1.HitTest(e.X,e.Y);

if(Result.Series!=nullResult.Object!=null)

{

//獲取當(dāng)前焦點(diǎn)x軸的值

stringxValue=ObjectUtil.GetPropertyValue(Result.Object,"AxisLabel").ToString();

//獲取當(dāng)前焦點(diǎn)所屬區(qū)域名稱

stringareaName=ObjectUtil.GetPropertyValue(Result.Object,"LegendText").ToString();

//獲取當(dāng)前焦點(diǎn)y軸的值

doubleyValue=Result.Series.Points[Result.PointIndex].YValues[0];

//鼠標(biāo)經(jīng)過(guò)時(shí)label顯示

skinLabel4.Visible=true;

skinLabel4.Text="時(shí)間："+xValue+"\n"+areaName+"："+yValue+"ug/m^3";

skinLabel4.Location=newPoint(e.X,e.Y-20);

}

else

{

//鼠標(biāo)離開(kāi)時(shí)label隱藏

skinLabel4.Visible=false;

}

catch(Exceptionse)

//鼠標(biāo)離開(kāi)時(shí)label隱藏

skinLabel4.Visible=false;

}

3.其中GetPropertyValue()獲取對(duì)象中的某個(gè)屬性方法如下：

publicclassObjectUtil

///summary

///獲取某個(gè)對(duì)象中的屬性值

////summary

///paramname="info"/param

///paramname="field"/param

///returns/returns

publicstaticobjectGetPropertyValue(objectinfo,stringfield)

if(info==null)returnnull;

Typet=info.GetType();

IEnumerableSystem.Reflection.PropertyInfoproperty=frompiint.GetProperties()wherepi.Name.ToLower()==field.ToLower()selectpi;

returnproperty.First().GetValue(info,null);

}

另外（以下與上述無(wú)關(guān)）圖表添加數(shù)據(jù)后綁定提示：

///summary

///揚(yáng)塵監(jiān)測(cè)、噪音監(jiān)測(cè)、溫度檢測(cè)、濕度監(jiān)測(cè)

////summary

///paramname="_Chart"/param

privatevoidChartTemperatureMethod(Chart_Chart)

ListstringxData=newListstring(){"0","4:00","8:00","12:00","16:00","20:00","24:00"};

ListintyData=newListint(){0,21,35,48,40,27,7};

ListintyData1=newListint(){0,5,18,25,68,50,30};

stringiss="#VALX";

//需要提示的信息

chart1.Series["Series1"].ToolTip="時(shí)間：#VALX\nPM2.5：#VALYug/m^3\tPM10："+yData1[xData.IndexOf("#VALX")+1]+"ug/m^3";

//標(biāo)簽顯示Inside：內(nèi)部，Outside：外部，Disabled：禁用

chart1.Series["Series1"]["PieLabelStyle"]="Outside";

chart1.Series["Series1"].Points.DataBindXY(xData,yData);

//需要提示的信息

chart1.Series["Series2"].ToolTip="時(shí)間：#VALX\nPM2.5："+yData[xData.IndexOf("#VALX")+1]+"ug/m^3\tPM10：#VALYug/m^3";

//標(biāo)簽顯示Inside：內(nèi)部，Outside：外部，Disabled：禁用

chart1.Series["