C# 在PPT幻燈片中創建圖表

本文轉載自查看原文 2018-09-19 15:17 1074 C#/ Spire.Presentation/ 圖表/ PPT/ 環形圖/ 混合圖表/ .NET/ .NET PPT/ 柱狀圖

圖表能夠很直觀的表現數據在某個時間段的變化趨勢，或者呈現數據的整體和局部之間的相互關系，相較於大篇幅的文本數據，圖表更增加了我們分析數據時選擇的多樣性，是我們挖掘數據背后潛在價值的一種更為有效地方式。在做數據匯報時，常用到PPT幻燈片來輔助工作，下面的示例中將演示如何通過C#編程在PPT幻燈片中創建圖表。示例中主要介紹了三種圖表的創建方法，如下:

1. 創建柱形圖表

2. 創建餅狀圖表

3. 創建混合型圖表（柱形圖、折線圖）

使用工具：Spire.Presentation for .NET

PS：下載安裝后，注意添加引用Spire.Presentation.dll到程序，dll文件可在安裝路徑下的Bin文件夾中獲取。

【示例 1 】創建柱形圖表

步驟 1 ：添加using指令

using Spire.Presentation;
using Spire.Presentation.Charts;
using System;
using System.Drawing;

步驟 2 ：創建一個PowerPoint文檔

Presentation presentation = new Presentation();

步驟 3 ：在幻燈片指定位置繪入指定大小和類型的圖表

RectangleF rect = new RectangleF(40, 50, 680, 500);
IChart chart = presentation.Slides[0].Shapes.AppendChart(ChartType.Column3DClustered, rect);

步驟 4 ：添加圖表數據

//添加圖表名
chart.ChartTitle.TextProperties.Text = "2018年上半年銷量";
chart.ChartTitle.TextProperties.IsCentered = true;
chart.ChartTitle.Height = 30;
chart.HasTitle = true;

//定義一個sting[,]數組
string[,] data = new string[,]
 {
  {"產品大類","1月","2月","3月","4月","5月","6月" },
  {"DW10","1542","1057","1223","1302","1145","1336"},
  {"ZQ13","4587","3658","2515","3154","2984","3890" },
  {"YI73","558","458","369","576","334","482" },
  {"TR11","2011","2485" ,"3010" ,"2785" ,"2225" ,"2476" }
 };

//將數據寫入圖表后台數據表
for (int i = 0; i < data.GetLength(0); i++)
{
    for (int j = 0; j < data.GetLength(1); j++)
    {
        //將數字類型的字符串轉換為整數
        int number;
        bool result = Int32.TryParse(data[i, j], out number);
        if (result)
        {
            chart.ChartData[i, j].Value = number;
        }
        else
        {
            chart.ChartData[i, j].Value = data[i, j];
        }
    }
}

//設置系列標簽
chart.Series.SeriesLabel = chart.ChartData["B1", "G1"];

//設置類別標簽
chart.Categories.CategoryLabels = chart.ChartData["A2", "A5"];

//為各個系列賦值
chart.Series[0].Values = chart.ChartData["B2", "B5"];
chart.Series[1].Values = chart.ChartData["C2", "C5"];
chart.Series[2].Values = chart.ChartData["D2", "D5"];
chart.Series[3].Values = chart.ChartData["E2", "E5"];
chart.Series[4].Values = chart.ChartData["F2", "F5"];
chart.Series[5].Values = chart.ChartData["G2", "G5"];

步驟 5 ：應用圖表樣式

//應用內置圖標樣式
chart.ChartStyle = ChartStyle.Style12;
//設置系列重疊
chart.OverLap = -50;
//設置類別間距
chart.GapWidth = 200;

步驟 6 ：保存文檔

presentation.SaveToFile("柱形圖.pptx", FileFormat.Pptx2010);
System.Diagnostics.Process.Start("柱形圖.pptx");

調試運行程序后，生成圖表，如下圖：

全部代碼：

using Spire.Presentation;
using Spire.Presentation.Charts;
using System;
using System.Drawing;

namespace ColumnChart
{
    class Program
    {
        static void Main(string[] args)
        {
            //創建一個PowerPoint文檔
            Presentation presentation = new Presentation();

            //插入柱形圖
            RectangleF rect = new RectangleF(40, 50, 680, 500);
            IChart chart = presentation.Slides[0].Shapes.AppendChart(ChartType.Column3DClustered, rect);

            //添加圖表名
            chart.ChartTitle.TextProperties.Text = "2018年上半年銷量";
            chart.ChartTitle.TextProperties.IsCentered = true;
            chart.ChartTitle.Height = 30;
            chart.HasTitle = true;

            //定義一個sting[,]數組
            string[,] data = new string[,]
             {
              {"產品大類","1月","2月","3月","4月","5月","6月" },
              {"DW10","1542","1057","1223","1302","1145","1336"},
              {"ZQ13","4587","3658","2515","3154","2984","3890" },
              {"YI73","558","458","369","576","334","482" },
              {"TR11","2011","2485" ,"3010" ,"2785" ,"2225" ,"2476" }
             };

            //將數據寫入圖表后台數據表
            for (int i = 0; i < data.GetLength(0); i++)
            {
                for (int j = 0; j < data.GetLength(1); j++)
                {
                    //將數字類型的字符串轉換為整數
                    int number;
                    bool result = Int32.TryParse(data[i, j], out number);
                    if (result)
                    {
                        chart.ChartData[i, j].Value = number;
                    }
                    else
                    {
                        chart.ChartData[i, j].Value = data[i, j];
                    }
                }
            }

            //設置系列標簽
            chart.Series.SeriesLabel = chart.ChartData["B1", "G1"];

            //設置類別標簽
            chart.Categories.CategoryLabels = chart.ChartData["A2", "A5"];

            //為各個系列賦值
            chart.Series[0].Values = chart.ChartData["B2", "B5"];
            chart.Series[1].Values = chart.ChartData["C2", "C5"];
            chart.Series[2].Values = chart.ChartData["D2", "D5"];
            chart.Series[3].Values = chart.ChartData["E2", "E5"];
            chart.Series[4].Values = chart.ChartData["F2", "F5"];
            chart.Series[5].Values = chart.ChartData["G2", "G5"];

            //應用內置圖標樣式
            chart.ChartStyle = ChartStyle.Style12;

            //設置系列重疊
            chart.OverLap = -50;

            //設置類別間距
            chart.GapWidth = 200;

            //保存並打開文檔
            presentation.SaveToFile("柱形圖.pptx", FileFormat.Pptx2010);
            System.Diagnostics.Process.Start("柱形圖.pptx");
        }
    }
}

View Code

【示例 2 】創建環形圖表

步驟 1 ：添加using指令

using Spire.Presentation;
using Spire.Presentation.Charts;
using Spire.Presentation.Drawing;
using System.Drawing;

步驟 2 ：新建一個PPT文件

Presentation presentation = new Presentation();

步驟 3 ：插入圓環形圖表

RectangleF rect = new RectangleF(40, 100, 550, 320);
IChart chart = presentation.Slides[0].Shapes.AppendChart(ChartType.Doughnut, rect, false);

步驟 4 ：添加圖表數據內容

//設置圖表名
chart.ChartTitle.TextProperties.Text = "市場份額";
chart.ChartTitle.TextProperties.IsCentered = true;
chart.ChartTitle.Height = 30;
chart.HasTitle = true;

//定義數據
string[] countries = new string[] { "古巴", "墨西哥", "法國", "德國" };
int[] sales = new int[] { 1800, 3000, 5100, 6200 };

//將數據寫入圖表后台數據表
chart.ChartData[0, 0].Text = "國家";
chart.ChartData[0, 1].Text = "銷售額";
for (int i = 0; i < countries.Length; ++i)
{
    chart.ChartData[i + 1, 0].Value = countries[i];
    chart.ChartData[i + 1, 1].Value = sales[i];
}

步驟 5 ：應用圖表標簽

//設置系列標簽
chart.Series.SeriesLabel = chart.ChartData["B1", "B1"];

//設置分類標簽
chart.Categories.CategoryLabels = chart.ChartData["A2", "A5"];

//為系列賦值
chart.Series[0].Values = chart.ChartData["B2", "B5"];

//添加點到系列
for (int i = 0; i < chart.Series[0].Values.Count; i++)
{
    ChartDataPoint cdp = new ChartDataPoint(chart.Series[0]);
    cdp.Index = i;
    chart.Series[0].DataPoints.Add(cdp);
}

//為系列里的個點添加背景顏色
chart.Series[0].DataPoints[0].Fill.FillType = FillFormatType.Solid;
chart.Series[0].DataPoints[0].Fill.SolidColor.Color = Color.LightBlue;
chart.Series[0].DataPoints[1].Fill.FillType = FillFormatType.Solid;
chart.Series[0].DataPoints[1].Fill.SolidColor.Color = Color.MediumPurple;
chart.Series[0].DataPoints[2].Fill.FillType = FillFormatType.Solid;
chart.Series[0].DataPoints[2].Fill.SolidColor.Color = Color.DarkGray;
chart.Series[0].DataPoints[3].Fill.FillType = FillFormatType.Solid;
chart.Series[0].DataPoints[3].Fill.SolidColor.Color = Color.DarkOrange;

//設置標簽顯示數值
chart.Series[0].DataLabels.LabelValueVisible = true;

//設置標簽顯示百分比
chart.Series[0].DataLabels.PercentValueVisible = true;

//設置圓環內徑大小
chart.Series[0].DoughnutHoleSize = 60;

步驟 6 ：保存文檔

presentation.SaveToFile("環形圖.pptx", FileFormat.Pptx2013);
System.Diagnostics.Process.Start("環形圖.pptx");

圓環圖表創建效果：

全部代碼：

using Spire.Presentation;
using Spire.Presentation.Charts;
using Spire.Presentation.Drawing;
using System.Drawing;

namespace DoughnutChart
{
    class Program
    {
        static void Main(string[] args)
        {
            //創建一個PowerPoint文件
            Presentation presentation = new Presentation();

            //插入圓環圖
            RectangleF rect = new RectangleF(40, 100, 550, 320);
            IChart chart = presentation.Slides[0].Shapes.AppendChart(ChartType.Doughnut, rect, false);

            //設置圖表名
            chart.ChartTitle.TextProperties.Text = "市場份額";
            chart.ChartTitle.TextProperties.IsCentered = true;
            chart.ChartTitle.Height = 30;
            chart.HasTitle = true;

            //定義數據
            string[] countries = new string[] { "古巴", "墨西哥", "法國", "德國" };
            int[] sales = new int[] { 1800, 3000, 5100, 6200 };

            //將數據寫入圖表后台數據表
            chart.ChartData[0, 0].Text = "國家";
            chart.ChartData[0, 1].Text = "銷售額";
            for (int i = 0; i < countries.Length; ++i)
            {
                chart.ChartData[i + 1, 0].Value = countries[i];
                chart.ChartData[i + 1, 1].Value = sales[i];
            }

            //設置系列標簽
            chart.Series.SeriesLabel = chart.ChartData["B1", "B1"];

            //設置分類標簽
            chart.Categories.CategoryLabels = chart.ChartData["A2", "A5"];

            //為系列賦值
            chart.Series[0].Values = chart.ChartData["B2", "B5"];

            //添加點到系列
            for (int i = 0; i < chart.Series[0].Values.Count; i++)
            {
                ChartDataPoint cdp = new ChartDataPoint(chart.Series[0]);
                cdp.Index = i;
                chart.Series[0].DataPoints.Add(cdp);
            }

            //為系列里的個點添加背景顏色
            chart.Series[0].DataPoints[0].Fill.FillType = FillFormatType.Solid;
            chart.Series[0].DataPoints[0].Fill.SolidColor.Color = Color.LightBlue;
            chart.Series[0].DataPoints[1].Fill.FillType = FillFormatType.Solid;
            chart.Series[0].DataPoints[1].Fill.SolidColor.Color = Color.MediumPurple;
            chart.Series[0].DataPoints[2].Fill.FillType = FillFormatType.Solid;
            chart.Series[0].DataPoints[2].Fill.SolidColor.Color = Color.DarkGray;
            chart.Series[0].DataPoints[3].Fill.FillType = FillFormatType.Solid;
            chart.Series[0].DataPoints[3].Fill.SolidColor.Color = Color.DarkOrange;

            //設置標簽顯示數值
            chart.Series[0].DataLabels.LabelValueVisible = true;

            //設置標簽顯示百分比
            chart.Series[0].DataLabels.PercentValueVisible = true;

            //設置圓環內徑大小
            chart.Series[0].DoughnutHoleSize = 60;

            //保存文檔
            presentation.SaveToFile("環形圖.pptx", FileFormat.Pptx2013);
            System.Diagnostics.Process.Start("環形圖.pptx");
        }
    }
}

View Code

【示例 3 】創建混合型圖表

步驟 1 ：添加using指令

using Spire.Presentation;
using Spire.Presentation.Charts;
using Spire.Presentation.Drawing;
using System;
using System.Data;
using System.Drawing;

步驟 2 ：新建文檔

Presentation presentation = new Presentation();

步驟 3 ：創建圖表1：柱形圖表

//插入柱形圖
RectangleF rect = new RectangleF(40, 100, 650, 320);
IChart chart = presentation.Slides[0].Shapes.AppendChart(ChartType.ColumnClustered, rec

//添加表名
chart.ChartTitle.TextProperties.Text = "2017季度銷售情況";
chart.ChartTitle.TextProperties.IsCentered = true;
chart.ChartTitle.Height = 30;
chart.HasTitle = true;

//創建一個DataTable
DataTable dataTable = new DataTable();
dataTable.Columns.Add(new DataColumn("季度", Type.GetType("System.String")));
dataTable.Columns.Add(new DataColumn("銷售額", Type.GetType("System.Int32")));
dataTable.Columns.Add(new DataColumn("同比增長率", Type.GetType("System.Decimal")));
dataTable.Rows.Add("1季度", 200, 0.6);
dataTable.Rows.Add("2季度", 250, 0.8);
dataTable.Rows.Add("3季度", 300, 0.6);
dataTable.Rows.Add("4季度", 150, 0.2);            

//將DataTable數據導入圖表后台數據表
for (int c = 0; c < dataTable.Columns.Count; c++)
{
    chart.ChartData[0, c].Text = dataTable.Columns[c].Caption;
}
for (int r = 0; r < dataTable.Rows.Count; r++)
{
    object[] datas = dataTable.Rows[r].ItemArray;
    for (int c = 0; c < datas.Length; c++)
    {
        chart.ChartData[r + 1, c].Value = datas[c];

    }
}

//設置系列標簽
chart.Series.SeriesLabel = chart.ChartData["B1", "C1"];

//設置類別標簽      
chart.Categories.CategoryLabels = chart.ChartData["A2", "A5"];

//為系列賦值
chart.Series[0].Values = chart.ChartData["B2", "B5"];
chart.Series[1].Values = chart.ChartData["C2", "C5"];

步驟 4 ：添加折線圖

//將系列2的圖表類型改為折線圖
chart.Series[1].Type = ChartType.LineMarkers;

//將系列2顯示到第二根軸
chart.Series[1].UseSecondAxis = true;

//顯示百分比數據
chart.SecondaryValueAxis.NumberFormat = "0%";

//不顯示第二根軸的網格線
chart.SecondaryValueAxis.MajorGridTextLines.FillType = FillFormatType.None;

//設置系列重疊
chart.OverLap = -50;

//設置類別間距
chart.GapWidth = 200;

步驟 5 ：保存文件

presentation.SaveToFile("混合圖表.pptx", FileFormat.Pptx2010);
System.Diagnostics.Process.Start("混合圖表.pptx");

混合型圖表生成效果：

全部代碼：

using Spire.Presentation;
using Spire.Presentation.Charts;
using Spire.Presentation.Drawing;
using System;
using System.Data;
using System.Drawing;

namespace 混合圖表
{
    class Program
    {
        static void Main(string[] args)
        {
            //新建一個PowerPoint文檔
            Presentation presentation = new Presentation();

            //插入柱形圖
            RectangleF rect = new RectangleF(40, 100, 650, 320);
            IChart chart = presentation.Slides[0].Shapes.AppendChart(ChartType.ColumnClustered, rect);

            //添加表名
            chart.ChartTitle.TextProperties.Text = "2017季度銷售情況";
            chart.ChartTitle.TextProperties.IsCentered = true;
            chart.ChartTitle.Height = 30;
            chart.HasTitle = true;

            //創建一個DataTable
            DataTable dataTable = new DataTable();
            dataTable.Columns.Add(new DataColumn("季度", Type.GetType("System.String")));
            dataTable.Columns.Add(new DataColumn("銷售額", Type.GetType("System.Int32")));
            dataTable.Columns.Add(new DataColumn("同比增長率", Type.GetType("System.Decimal")));
            dataTable.Rows.Add("1季度", 200, 0.6);
            dataTable.Rows.Add("2季度", 250, 0.8);
            dataTable.Rows.Add("3季度", 300, 0.6);
            dataTable.Rows.Add("4季度", 150, 0.2);            

            //將DataTable數據導入圖表后台數據表
            for (int c = 0; c < dataTable.Columns.Count; c++)
            {
                chart.ChartData[0, c].Text = dataTable.Columns[c].Caption;
            }
            for (int r = 0; r < dataTable.Rows.Count; r++)
            {
                object[] datas = dataTable.Rows[r].ItemArray;
                for (int c = 0; c < datas.Length; c++)
                {
                    chart.ChartData[r + 1, c].Value = datas[c];

                }
            }

            //設置系列標簽
            chart.Series.SeriesLabel = chart.ChartData["B1", "C1"];

            //設置類別標簽      
            chart.Categories.CategoryLabels = chart.ChartData["A2", "A5"];

            //為系列賦值
            chart.Series[0].Values = chart.ChartData["B2", "B5"];
            chart.Series[1].Values = chart.ChartData["C2", "C5"];

            //將系列2的圖表類型改為折線圖
            chart.Series[1].Type = ChartType.LineMarkers;

            //將系列2顯示到第二根軸
            chart.Series[1].UseSecondAxis = true;

            //顯示百分比數據
            chart.SecondaryValueAxis.NumberFormat = "0%";

            //不顯示第二根軸的網格線
            chart.SecondaryValueAxis.MajorGridTextLines.FillType = FillFormatType.None;

            //設置系列重疊
            chart.OverLap = -50;

            //設置類別間距
            chart.GapWidth = 200;

            //保存打開文檔
            presentation.SaveToFile("混合圖表.pptx", FileFormat.Pptx2010);
            System.Diagnostics.Process.Start("混合圖表.pptx");
        }
    }
}

View Code

注：Spire.Presentation 支持創建73種不同的圖表樣式，如下圖

以上是本次關於“C# 創建PPT圖表”的全部內容。

如需轉載，請注明出處。

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