使用DevExpress的WebChartControl控件绘制图表(柱状图、折线图、饼图)

第一次写博，没什么经验，主要是把最近自己对Dev的一些研究贴出来大家共同探讨，有不足之处望大家帮忙斧正。

WebChartControl是DevExpress控件群下的一个Web图表控件，它使用非常的方便，生成的图表也相当的漂亮。

先贴出几张WebChartControl生成的图表：

View Code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Drawing;
using DevExpress.XtraCharts;
using System.Data;

namespace DevDemo
{
public static class ChartServices
{
/// <summary>
/// 绘制图形
/// </summary>
/// <param name="control">图表控件</param>
/// <param name="seriesName">系列名</param>
/// <param name="type">类型</param>
/// <param name="dt">数据源</param>
/// <param name="column1"></param>
/// <param name="column2"></param>
public static void DrawChart(DevExpress.XtraCharts.Web.WebChartControl control, string seriesName, ViewType type, DataTable dt, string column1, string column2)
{
Series series = new Series(seriesName, type);
DataTable table = dt;
SeriesPoint point=null;
for (int i = 0; i < table.Rows.Count; i++)
{
point= new SeriesPoint(table.Rows[i][column1].ToString(), Convert.ToDouble(table.Rows[i][column2].ToString()));
series.Points.Add(point);
}
control.Series.Add(series);
//针对饼图的特殊处理
if(type==ViewType.Pie)
{
//设置显示方式(Argument:显示图例说明，ArgumentAndValues:显示图例内容和数据)
series.Label.PointOptions.PointView = PointView.ArgumentAndValues;
//设置数据显示形式(Percent:百分比,Currency:货币类型，数据前添加￥,Scientific:科学计数法)
series.Label.PointOptions.ValueNumericOptions.Format = NumericFormat.Percent;
//数据是否保留小数(0：不保留小数位，1保留一位小数，2保留两位小数)
series.Label.PointOptions.ValueNumericOptions.Precision = 0;

//数据以百分比显示时只能是Default和None
((PieSeriesLabel)series.Label).ResolveOverlappingMode =ResolveOverlappingMode.Default;
}
}

/// <summary>
/// 设置图表标题
/// </summary>
/// <param name="control">图表控件</param>
/// /// <param name="isVisible">标题是否可见</param>
/// <param name="text">标题文本</param>
/// <param name="isWordWrop">是否换行</param>
/// <param name="maxLineCount">最大允许行数</param>
/// <param name="alignment">对齐方式</param>
/// <param name="dock">位置</param>
/// <param name="isAntialiasing">是否允许设置外观</param>
/// <param name="font">字体</param>
/// <param name="textColor">文本颜色</param>
/// <param name="indent">字体缩进值</param>
public static void SetChartTitle(DevExpress.XtraCharts.Web.WebChartControl control,bool isVisible,String text, bool isWordWrop, int maxLineCount, StringAlignment alignment, ChartTitleDockStyle dock, bool isAntialiasing, Font font, Color textColor, int indent)
{
//设置标题
ChartTitle title = new ChartTitle();
title.Visible = isVisible;
//显示文本
title.Text = text;
//是否允许换行
title.WordWrap = isWordWrop;
//最大允许行数
title.MaxLineCount = maxLineCount;
//对齐方式
title.Alignment = alignment;
//位置
title.Dock = dock;
//是否允许设置外观
title.Antialiasing = isAntialiasing;
//字体
title.Font = font;
//字体颜色
title.TextColor = textColor;
//缩进值
title.Indent = indent;
control.Titles.Add(title);
}

/// <summary>
/// 为X轴添加标题
/// </summary>
/// <param name="control">图形控件</param>
/// <param name="isVisible">标题是否可见</param>
/// <param name="aligment">对齐方式</param>
/// <param name="text">标题显示文本</param>
/// <param name="color">标题字体颜色</param>
/// <param name="isAntialiasing">是否允许设置外观</param>
/// <param name="font">字体</param>
public static void SetAxisX(DevExpress.XtraCharts.Web.WebChartControl control, bool isVisible, StringAlignment aligment, string text, Color color, bool isAntialiasing, Font font)
{
XYDiagram xydiagram = (XYDiagram)control.Diagram;
xydiagram.AxisX.Title.Visible = isVisible;
xydiagram.AxisX.Title.Alignment = aligment;
xydiagram.AxisX.Title.Text = text;
xydiagram.AxisX.Title.TextColor = color;
xydiagram.AxisX.Title.Antialiasing = isAntialiasing;
xydiagram.AxisX.Title.Font = font;
}

/// <summary>
/// 为X轴添加标题
/// </summary>
/// <param name="control">图形控件</param>
/// <param name="isVisible">标题是否可见</param>
/// <param name="aligment">对齐方式</param>
/// <param name="text">标题显示文本</param>
/// <param name="color">标题字体颜色</param>
/// <param name="isAntialiasing">是否允许设置外观</param>
/// <param name="font">字体</param>
public static void SetAxisY(DevExpress.XtraCharts.Web.WebChartControl control, bool isVisible, StringAlignment aligment, string text, Color color, bool isAntialiasing, Font font)
{
XYDiagram xydiagram = (XYDiagram)control.Diagram;
xydiagram.AxisY.Title.Visible = isVisible;
xydiagram.AxisY.Title.Alignment = aligment;
xydiagram.AxisY.Title.Text = text;
xydiagram.AxisY.Title.TextColor = color;
xydiagram.AxisY.Title.Antialiasing = isAntialiasing;
xydiagram.AxisY.Title.Font = font;
}
}
}

以上为本人的一点小小研究，如有不足之处，望不吝赐教！