考虑一个构建ASP.NET图表图像的ASP.NET MVC控制器方法。
图像呈现方式不够美观: 难看的图像 http://www.imagechicken.com/uploads/1253830647005451400.png 问题:如何在程序中设置以下内容的字体:
- X轴和Y轴标签,例如Y轴的0到35以及X轴上的日期 - 数据,例如12、0、0、3、6?
public FileStreamResult MakeImg(IEnumerable<MyObj> stats)
{
Chart barchart = BarChart(400, 300);
Series series1 = new Series("Series1");
series1.ChartArea = "ca1";
series1.ChartType = SeriesChartType.Column;
series1.IsValueShownAsLabel = true;
series1.Font = new Font("Verdana", 9f, FontStyle.Regular);
barchart.Series.Add(series1);
// Set chart data source
barchart.DataSource = stats;
// Set series members names for the X and Y values
barchart.Series["Series1"].XValueMember = "FriendlyDate";
barchart.Series["Series1"].YValueMembers = "NumRecords";
// Data bind to the selected data source
barchart.DataBind();
MemoryStream ms = new MemoryStream();
barchart.SaveImage(ms, ChartImageFormat.Png);
ms.Seek(0, SeekOrigin.Begin);
return new FileStreamResult(ms, "image/png");
}
图像呈现方式不够美观: 难看的图像 http://www.imagechicken.com/uploads/1253830647005451400.png 问题:如何在程序中设置以下内容的字体:
- X轴和Y轴标签,例如Y轴的0到35以及X轴上的日期 - 数据,例如12、0、0、3、6?