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读取数据库数据并在HighCharts上显示

时间:2021-07-01 10:21:17 帮助过:5人阅读

 

Y轴:

     yAxis: {                     title:<%=Ytitle %> ,  //Y轴坐标标题                 }

 

主标题:

     title: <%=title %> , //图表主标题

副标题:

     subtitle: <%=subtitle %> , //图表副标题

 

Y轴数据:

     series:<%= seriesData.ToString() %>

 

下面给出获取X轴、Y轴、标题的方法:

 

    public string XAxisCategories = ""; //X轴     public StringBuilder seriesData = new StringBuilder(); //Y轴     public string title = ""; // 图表标题

    ...

  标题获取

 

  title = "{text: ‘" + "<font color=red>"+site_name +"</font>"+"‘}";  //红色标记的部分是从数据库动态获取的,怎么获取,该获取什么,根据你需要,你应该懂的

 

X轴获取:

 

StringBuilder xAxisCategories = new StringBuilder();

xAxisCategories.Append("[");

...

foreach (DataRowView drv in ds.Tables[0].DefaultView)

{      xAxisCategories.Append("‘");      xAxisCategories.Append(drv["周数"] == null ? "0" : drv["周数"].ToString());      xAxisCategories.Append("‘,");

}

XAxisCategories = xAxisCategories.Replace(",", "", xAxisCategories.Length - 1, 1).Append("]").ToString(); //这里是去掉最后一个多余的逗号(,)

 

Y轴获取:

 

StringBuilder yAxisCategories = new StringBuilder();

...

foreach (DataRowView drv in ds.Tables[0].DefaultView)

{      yAxisCategories.Append(drv["人数"] == null ? "0" : drv["人数"].ToString());      yAxisCategories.Append(",");

}

seriesData.Append("[{name: ‘人数‘,type: ‘spline‘,data: ["); seriesData.Append(yAxisCategories.Replace(",", "", yAxisCategories.Length - 1, 1)); //去除最后一个逗号(,) seriesData.Append("]}]");

 

读取数据库数据并在HighCharts上显示

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