chart绘图控件histogram引用HistogramChartHelper类的问题
为什么我在引用这个类时候会出错// Create a histogram series
HistogramChartHelper histogramHelper = new HistogramChartHelper();
我按照微软所给例子引用:
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using System.Web.UI.DataVisualization.Charting;
using System.Web.UI.DataVisualization.Charting.Utilities;
而且我写的代码如果放到微软所给例子的project里就能顺利通过,放到自己的project里提示HistogramChartHelper 没有正确引用
求解? --------------------编程问答-------------------- ??? --------------------编程问答-------------------- 没人用过吗?
System.Web.UI.DataVisualization.Charting.Utilities.HistogramChartHelper histogramHelper = new HistogramChartHelper();
我这用还是报错 --------------------编程问答-------------------- 谁来顶 我给分 晕 竟然没人用过
补充:.NET技术 , ASP.NET