Devexpress系列一 之 ChartControl 柱形图BarSideBySideSeries2D

这一篇是讲的是简单的柱形图，

柱形图运行效果如下图：

新建WPF窗体应用程序后（WPF用户控件也可以），工程引用DevExpress.Xpf.Charts.v17.1.dll，

在XAML头部引用名称  xmlns:dxc="http://schemas.devexpress.com/winfx/2008/xaml/charts"

XAML代码如下：

<Window x:Class="DashBoardNavigationDemo.BarChartWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:dxc="http://schemas.devexpress.com/winfx/2008/xaml/charts"
        xmlns:local="clr-namespace:DashBoardNavigationDemo"
        mc:Ignorable="d"
        Title="BarChartWindow"  Loaded="Window_Loaded">

    <Grid Name="barChartGrid" Background="#262A4D" >
        <Grid.RowDefinitions>
            <RowDefinition Height="25"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <Grid Background="#2B3059">
            <TextBlock Text="工序投入产出柱形图" FontSize="15" Foreground="White" HorizontalAlignment="Left"
                       VerticalAlignment="Center" Margin="15,0,0,0"/>
        </Grid>
        <Grid Grid.Row="1">
            <dxc:ChartControl Name="barChart" AnimationMode="OnLoad"   BorderBrush="#262A4D"
                              Background="#262A4D" Margin="-4,10,10,-2" Padding="0,0,0,0">
                <dxc:ChartControl.Legend>
                    <dxc:Legend Background="#262A4D" Visible="True" HorizontalPosition="Right" VerticalPosition="TopOutside"
                                 Orientation="Horizontal" FontSize="12" Margin="0"
                                 Padding="0" BorderThickness="0" >
                    </dxc:Legend>
                </dxc:ChartControl.Legend>
                <dxc:ChartControl.Diagram>
                    <dxc:XYDiagram2D EnableAxisXNavigation="False" BarDistance="0">
                        <dxc:XYDiagram2D.Series>
                            <dxc:BarSideBySideSeries2D Name="BarSideSerie" Brush="#FFFF00" DisplayName="投入"
                                                      LabelsVisibility="True" AnimationAutoStartMode="SetStartState">
                                <dxc:BarSideBySideSeries2D.Model>
                                    <dxc:BorderlessSimpleBar2DModel/>
                                </dxc:BarSideBySideSeries2D.Model>
                                <dxc:BarSideBySideSeries2D.Label>
                                    <dxc:SeriesLabel Foreground="Red" dxc:BarSideBySideSeries2D.LabelPosition="Outside"
                                                     HorizontalAlignment="Center" VerticalAlignment="Center"/>
                                </dxc:BarSideBySideSeries2D.Label>
                            </dxc:BarSideBySideSeries2D>
                            <dxc:BarSideBySideSeries2D Name="BarSideSerie2" Brush="#0909F7" DisplayName="产出"  Foreground="WhiteSmoke"
                                                       LabelsVisibility="True" AnimationAutoStartMode="SetStartState">
                                <dxc:BarSideBySideSeries2D.Model>
                                    <dxc:BorderlessSimpleBar2DModel/>
                                </dxc:BarSideBySideSeries2D.Model>
                                <dxc:BarSideBySideSeries2D.Label>
                                    <dxc:SeriesLabel
                                        dxc:BarSideBySideSeries2D.LabelPosition="Outside"
                                        ConnectorVisible="False"
                                        ResolveOverlappingMode="Default"
                                        Indent="20"
                                        dxc:MarkerSeries2D.Angle="90"
                                        Visible="True">
                                        <dxc:SeriesLabel.ElementTemplate>
                                            <DataTemplate>
                                                <Border Background="Transparent" Opacity="0.75" CornerRadius="2">
                                                    <StackPanel>
                                                        <TextBlock Text="{Binding Path=Text}" Foreground="Red"/>
                                                    </StackPanel>
                                                </Border>
                                            </DataTemplate>
                                        </dxc:SeriesLabel.ElementTemplate>
                                    </dxc:SeriesLabel>
                                </dxc:BarSideBySideSeries2D.Label>
                            </dxc:BarSideBySideSeries2D>
                        </dxc:XYDiagram2D.Series>
                        <dxc:XYDiagram2D.AxisX>
                            <dxc:AxisX2D x:Name="_AxisX"  Visible="True" Brush="#3c3e71" TickmarksMinorVisible="False"
                                         GridLinesMinorVisible="False" GridLinesVisible="False">
                                <dxc:AxisX2D.CrosshairAxisLabelOptions>
                                    <dxc:CrosshairAxisLabelOptions />
                                </dxc:AxisX2D.CrosshairAxisLabelOptions>
                                <dxc:AxisX2D.Label>
                                    <dxc:AxisLabel  Foreground="WhiteSmoke" Padding="0,1" FontSize="12"/>
                                </dxc:AxisX2D.Label>
                            </dxc:AxisX2D>
                        </dxc:XYDiagram2D.AxisX>
                        <dxc:XYDiagram2D.AxisY >
                            <dxc:AxisY2D x:Name="_AxisY" GridLinesMinorVisible="True">
                                <dxc:AxisY2D.Label>
                                    <dxc:AxisLabel Foreground="WhiteSmoke" FontSize="12"/>
                                </dxc:AxisY2D.Label>
                                <dxc:AxisY2D.Title>
                                    <dxc:AxisTitle Visible="True"   Content="产量, 万片"/>
                                </dxc:AxisY2D.Title>
                            </dxc:AxisY2D>
                        </dxc:XYDiagram2D.AxisY>
                        <dxc:XYDiagram2D.DefaultPane>
                            <dxc:Pane Name="DefaultPaneBackground" DomainBorderBrush="#262A4D"
                                      DomainBrush="#262A4D"/>
                        </dxc:XYDiagram2D.DefaultPane>
                    </dxc:XYDiagram2D>
                </dxc:ChartControl.Diagram>
            </dxc:ChartControl>
        </Grid>
    </Grid>
</Window>

C#代码如下：

using DevExpress.Xpf.Charts;
using System;
using System.Collections.Generic;
using System.Windows;

namespace DashBoardNavigationDemo
{
    /// <summary>
    /// BarChartWindow.xaml 的交互逻辑
    /// </summary>
    public partial class BarChartWindow : Window
    {
        private List<SeriesPoint> lsBarPoint = new List<SeriesPoint>();  //投入柱形图数据源
        private List<SeriesPoint> lsBarPoint2 = new List<SeriesPoint>(); //产出柱形图数据源

        public BarChartWindow()
        {
            InitializeComponent();
        }

        /// <summary>
        /// 绑定数据
        /// </summary>
        private void BindData()
        {
            GetData();
            BarSideSerie.Points.Clear();
            BarSideSerie.Points.AddRange(lsBarPoint);
            BarSideSerie2.Points.Clear();
            BarSideSerie2.Points.AddRange(lsBarPoint2);
            BarSideSerie.Animate();
            BarSideSerie2.Animate();
            barChart.UpdateData();
        }

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
           BindData();
        }

        /// <summary>
        /// 获取数据并加工转化
        /// </summary>
        private void GetData()
        {
            List<string> list = new List<string>() { "工序1", "工序2", "工序3", "工序4" };
            Dictionary<string, int> dic1Value = new Dictionary<string, int>();
            Dictionary<string, int> dic2Value = new Dictionary<string, int>();

            Random rd = new Random();
            foreach (var processName in list)
            {
                int num = ;
                num = rd.Next(, );
                if (dic1Value.ContainsKey(processName))
                {
                    dic1Value[processName] = num;
                }
                else
                {
                    dic1Value.Add(processName, num);
                }
            }

            foreach (var processName in list)
            {
                int num = ;
                num = rd.Next(, );
                if (dic2Value.ContainsKey(processName))
                {
                    dic2Value[processName] = num;
                }
                else
                {
                    dic2Value.Add(processName, num);
                }
            }

            lsBarPoint.Clear();
            lsBarPoint2.Clear();
            foreach (var item in dic1Value)
            {
                lsBarPoint.Add(new SeriesPoint() { Argument = item.Key, Value = item.Value });
            }

            foreach (var item in dic2Value)
            {
                lsBarPoint2.Add(new SeriesPoint() { Argument = item.Key, Value = item.Value });
            }
        }
    }
}

ChartControl柱形图相关属性总结：

1.AnimationMode 属性设置柱形图控件的动画效果：OnLoad是加载时动画触发动画效果；OnDataChanged 是图表数据改变时；Disabled是禁用动画效果。

2.Legend：图例

<dxc:ChartControl.Legend>
                    <dxc:Legend Background="#262A4D" Visible="True" HorizontalPosition="Right" VerticalPosition="TopOutside"
                                 Orientation="Horizontal" FontSize="12" Margin="0"
                                 Padding="0" BorderThickness="0" >
                    </dxc:Legend>
                </dxc:ChartControl.Legend>

3.X或Y轴属性

<dxc:XYDiagram2D.AxisY >
    <dxc:AxisY2D x:Name="_AxisY" GridLinesMinorVisible="True">
        <dxc:AxisY2D.Label>
           <dxc:AxisLabel Foreground="WhiteSmoke" FontSize="12"/>
        </dxc:AxisY2D.Label>

        <dxc:AxisY2D.Title>
          <dxc:AxisTitle Visible="True"   Content="产量, 万片"/>
       </dxc:AxisY2D.Title>
     </dxc:AxisY2D>
  </dxc:XYDiagram2D.AxisY> 　　　　　　　　　　　　　　

dxc:AxisY2D.Label 表示Y轴坐标刻度值标签，X轴同理。

dxc:AxisY2D.Title 表示Y轴标题，X轴同理。

4.柱形图中间主体显示区域设置：

 <dxc:XYDiagram2D.DefaultPane>
      <dxc:Pane Name="DefaultPaneBackground" DomainBorderBrush="#262A4D"
                DomainBrush="#262A4D"/>
 </dxc:XYDiagram2D.DefaultPane>

上面代码设置了柱形图主体区域的背景色。

5.dxc:XYDiagram2D.Series 设置 ChartControl有哪些系列的图表（柱形图，折线图，饼图，雷达图等），

在此例中，我在 dxc:XYDiagram2D.Series中添加了两个BarSideBySideSeries2D系列。

6.dxc:BarSideBySideSeries2D.Model设置柱形图的外观

 <dxc:BarSideBySideSeries2D.Model>
    <dxc:BorderlessSimpleBar2DModel/>
 </dxc:BarSideBySideSeries2D.Model>

7.dxc:BarSideBySideSeries2D.Label 设置柱形图上的的标签显示的风格

<dxc:BarSideBySideSeries2D.Label>
    <dxc:SeriesLabel Foreground="Red" dxc:BarSideBySideSeries2D.LabelPosition="Outside"
                     HorizontalAlignment="Center" VerticalAlignment="Center"/>
</dxc:BarSideBySideSeries2D.Label>

上面代码设置了柱形图显示值的前景色是红色 ：Foreground="Red"

标签的位置在柱形图外面顶上：dxc:BarSideBySideSeries2D.LabelPosition="Outside"

水平方向居中对齐，垂直方向居中对象。

上面那种写法，标签会被一个矩形框包住，如果不想要矩形框，可以自定义标签，如下代码：

<dxc:BarSideBySideSeries2D.Label>
   <dxc:SeriesLabel
         dxc:BarSideBySideSeries2D.LabelPosition="Outside"
         ConnectorVisible="False"
         ResolveOverlappingMode="Default"
         Indent="20"
         dxc:MarkerSeries2D.Angle="90"
         Visible="True">
       <dxc:SeriesLabel.ElementTemplate>
           <DataTemplate>
              <Border Background="Transparent" Opacity="0.75" CornerRadius="2">
                  <StackPanel>
                       <TextBlock Text="{Binding Path=Text}" Foreground="Red"/>
                   </StackPanel>
               </Border>
         </DataTemplate>
      </dxc:SeriesLabel.ElementTemplate>
    </dxc:SeriesLabel>
 </dxc:BarSideBySideSeries2D.Label>

其中：

dxc:BarSideBySideSeries2D.LabelPosition="Outside" 为 设置 柱子数值标签显示的位置在顶上

ConnectorVisible="False" 为：不显示连接柱子和标签之间的线

Indent="20"   为标签到柱子顶端的距离（如果ConnectorVisible="True"）