c# - 将 Google Chart Interactive 与 ASP.NET 和 C# 集成

Question

我想通过 ASP.NET 和 C# 使用 Google Chart Interactive 创建图表 我发现了这个例子 http://code.google.com/apis/visualization/documentation/using_overview.html但我发现问题是如何将它与 c# 集成以及如何将数据从 c# 集成到 javascript.. 有人可以提示我应该做什么吗？

Answer 1

您需要做的是将命令发送到 google charts api 并将响应转换为如下所示的图像，然后您可以获取图像对象并将其写入文件或执行您想要的任何操作:

 string ChartURL = "http://chart.apis.google.com/chart?";
            ChartURL += "chxr=0,0," + MaxX + "";
            ChartURL += "&chxt=y";
            ChartURL += "&chbh=a";
            ChartURL += "&chs=" + ChartWidth + "x" + ChartHeight + "";
            ChartURL += "&cht=bvg";
            ChartURL += "&chco=" + ChartColors + "";
            ChartURL += "&chds=" + ChartDataRange + "";
            ChartURL += "&chd=t:" + ChartValues + "";
            ChartURL += "&chdl=" + ChartLegend + "";
            ChartURL += "&chtt=" + ChartTitle + "";

            HttpWebRequest myRequest = WebRequest.Create(ChartURL) as HttpWebRequest;
            HttpWebResponse ServerResponse = myRequest.GetResponse() as HttpWebResponse;
            Stream ResponseStream = myRequest.GetResponse().GetResponseStream();
            return System.Drawing.Image.FromStream(ResponseStream);