C# 在PPT幻燈片中建立圖表

摘要： 圖表能夠很直觀的表現資料在某個時間段的變化趨勢，或者呈現資料的整體和區域性之間的相互關係，相較於大篇幅的文字資料，圖表更增加了我們分析資料時選擇的多樣性，是我們挖掘資料背後潛在價值的一種更為有效地方式。在做資料彙報時，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#程式設計在PPT...

圖表能夠很直觀的表現資料在某個時間段的變化趨勢，或者呈現資料的整體和區域性之間的相互關係，相較於大篇幅的文字資料，圖表更增加了我們分析資料時選擇的多樣性，是我們挖掘資料背後潛在價值的一種更為有效地方式。在做資料彙報時，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#程式設計在PPT幻燈片中建立圖表。示例中主要介紹了三種圖表的建立方法，如下:

1. 建立柱形圖表

2. 建立餅狀圖表

3. 建立混合型圖表（柱形圖、折線圖）

使用工具： ofollow,noindex" target="_blank">Spire.Presentation for .NET

PS：下載安裝後，注意新增引用Spire.Presentation.dll到程式，dll檔案可在安裝路徑下的Bin資料夾中獲取。

【示例1】建立柱形圖表

步驟 1 ：新增using指令

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

步驟 2 ：建立一個 PowerPoint文件

Presentation presentation = new Presentation();

步驟 3 ：在幻燈片指定位置繪入指定大小和型別的圖表

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

步驟 4 ：新增圖表資料

//新增圖表名
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[,]陣列
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" }
 };

//將資料寫入圖表後臺資料表
for (int i = 0; i < data.GetLength(0); i++)
{
for (int j = 0; j < data.GetLength(1); j++)
{
//將數字型別的字串轉換為整數
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];
}
}
}

//設定系列標籤
chart.Series.SeriesLabel = chart.ChartData["B1", "G1"];

//設定類別標籤
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

//應用內建圖示樣式
chart.ChartStyle = ChartStyle.Style12;
//設定系列重疊
chart.OverLap = -50;
//設定類別間距
chart.GapWidth = 200;

步驟 6 ：儲存文件

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

除錯執行程式後，生成圖表，如下圖：

全部程式碼：

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

namespace ColumnChart
{
class Program
{
static void Main(string[] args)
{
//建立一個PowerPoint文件
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);

//新增圖表名
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[,]陣列
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" }
};

//將資料寫入圖表後臺資料表
for (int i = 0; i < data.GetLength(0); i++)
{
for (int j = 0; j < data.GetLength(1); j++)
{
//將數字型別的字串轉換為整數
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];
}
}
}

//設定系列標籤
chart.Series.SeriesLabel = chart.ChartData["B1", "G1"];

//設定類別標籤
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"];

//應用內建圖示樣式
chart.ChartStyle = ChartStyle.Style12;

//設定系列重疊
chart.OverLap = -50;

//設定類別間距
chart.GapWidth = 200;

//儲存並開啟文件
presentation.SaveToFile("柱形圖.pptx", FileFormat.Pptx2010);
System.Diagnostics.Process.Start("柱形圖.pptx");
}
}
}

View Code

【示例2】建立環形圖表

步驟 1 ：新增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檔案

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 ：新增圖表資料內容

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

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

//將資料寫入圖表後臺資料表
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 ：應用圖表標籤

//設定系列標籤
chart.Series.SeriesLabel = chart.ChartData["B1", "B1"];

//設定分類標籤
chart.Categories.CategoryLabels = chart.ChartData["A2", "A5"];

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

//新增點到系列
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);
}

//為系列裡的個點新增背景顏色
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;

//設定標籤顯示數值
chart.Series[0].DataLabels.LabelValueVisible = true;

//設定標籤顯示百分比
chart.Series[0].DataLabels.PercentValueVisible = true;

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

步驟 6 ：儲存文件

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

圓環圖表建立效果：

全部程式碼：

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

namespace DoughnutChart
{
class Program
{
static void Main(string[] args)
{
//建立一個PowerPoint檔案
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);

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

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

//將資料寫入圖表後臺資料表
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];
}

//設定系列標籤
chart.Series.SeriesLabel = chart.ChartData["B1", "B1"];

//設定分類標籤
chart.Categories.CategoryLabels = chart.ChartData["A2", "A5"];

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

//新增點到系列
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);
}

//為系列裡的個點新增背景顏色
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;

//設定標籤顯示數值
chart.Series[0].DataLabels.LabelValueVisible = true;

//設定標籤顯示百分比
chart.Series[0].DataLabels.PercentValueVisible = true;

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

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

View Code

【示例3】建立混合型圖表

步驟 1 ：新增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 ：新建文件

Presentation presentation = new Presentation();

步驟 3 ：建立圖表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

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

//建立一個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資料匯入圖表後臺資料表
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];

}
}

//設定系列標籤
chart.Series.SeriesLabel = chart.ChartData["B1", "C1"];

//設定類別標籤
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 ：新增折線圖

//將系列2的圖表型別改為折線圖
chart.Series[1].Type = ChartType.LineMarkers;

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

//顯示百分比資料
chart.SecondaryValueAxis.NumberFormat = "0%";

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

//設定系列重疊
chart.OverLap = -50;

//設定類別間距
chart.GapWidth = 200;

步驟 5 ：儲存檔案

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：

全部程式碼：

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文件
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);

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

//建立一個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資料匯入圖表後臺資料表
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];

}
}

//設定系列標籤
chart.Series.SeriesLabel = chart.ChartData["B1", "C1"];

//設定類別標籤
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的圖表型別改為折線圖
chart.Series[1].Type = ChartType.LineMarkers;

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

//顯示百分比資料
chart.SecondaryValueAxis.NumberFormat = "0%";

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

//設定系列重疊
chart.OverLap = -50;

//設定類別間距
chart.GapWidth = 200;

//儲存開啟文件
presentation.SaveToFile("混合圖表.pptx", FileFormat.Pptx2010);
System.Diagnostics.Process.Start("混合圖表.pptx");
}
}
}

View Code

注：Spire.Presentation 支援建立多大73種不同的圖表樣式，如下圖

以上是本次關於“C# 建立PPT圖表”的全部內容。

如需轉載，請註明出處。