I am drawing a pie chart with some data:
我正在绘制一个包含一些数据的饼图:
private void DrawFractionChart(Excel.Worksheet activeSheet, Excel.ChartObjects xlCharts, Excel.Range xRange, Excel.Range yRange)
{
Excel.ChartObject myChart = (Excel.ChartObject)xlCharts.Add(200, 500, 200, 100);
Excel.Chart chartPage = myChart.Chart;
Excel.SeriesCollection seriesCollection = chartPage.SeriesCollection();
Excel.Series series1 = seriesCollection.NewSeries();
series1.XValues = activeSheet.Range["E1","E3"];
series1.Values = activeSheet.Range["F1","F3"];
chartPage.ApplyDataLabels(Excel.XlDataLabelsType.xlDataLabelsShowPercent, true,true,false,true,true,true,true);
chartPage.ChartType = Excel.XlChartType.xlDoughnut;
Excel.Axis axis = chartPage.Axes(Excel.XlAxisType.xlValue, Microsoft.Office.Interop.Excel.XlAxisGroup.xlPrimary) as Excel.Axis;
}
I just can't figure out how to turn on data labels. I googled everywhere for it but nothing's been helpful so far sadly.
我只是想不通如何打开数据标签。我到处搜索谷歌,但遗憾的是没有任何帮助。
3 个解决方案
#1
6
Try this (TRIED AND TESTED)
试试这个(经过试验和测试)
private void DrawFractionChart(Excel.Worksheet activeSheet, Excel.ChartObjects xlCharts, Excel.Range xRange, Excel.Range yRange)
{
Excel.ChartObject myChart = (Excel.ChartObject)xlCharts.Add(200, 500, 200, 100);
Excel.Chart chartPage = myChart.Chart;
Excel.SeriesCollection seriesCollection = chartPage.SeriesCollection();
Excel.Series series1 = seriesCollection.NewSeries();
series1.XValues = activeSheet.Range["E1", "E3"];
series1.Values = activeSheet.Range["F1", "F3"];
chartPage.ChartType = Excel.XlChartType.xlDoughnut;
Excel.Axis axis = chartPage.Axes(Excel.XlAxisType.xlValue, Microsoft.Office.Interop.Excel.XlAxisGroup.xlPrimary) as Excel.Axis;
series1.ApplyDataLabels(Excel.XlDataLabelsType.xlDataLabelsShowPercent, true, true, false, true, true, true, true);
}
One quick question though. If you are not using xRange
and yRange
then why declare it?
但是一个简单的问题。如果你没有使用xRange和yRange那么为什么要声明呢?
This is the completed code that is tried and tested.
这是经过试验和测试的完整代码。
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Excel = Microsoft.Office.Interop.Excel;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
Microsoft.Office.Interop.Excel.Application xlexcel;
Microsoft.Office.Interop.Excel.Workbook xlWorkBook;
Microsoft.Office.Interop.Excel.Worksheet xlWorkSheet;
object misValue = System.Reflection.Missing.Value;
xlexcel = new Excel.Application();
xlexcel.Visible = true;
// Add a Workbook
xlWorkBook = xlexcel.Workbooks.Add();
// Set Sheet 1 as the sheet you want to work with
xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1);
xlWorkSheet.Cells[1, 5] = "Apples";
xlWorkSheet.Cells[2, 5] = "Oranges";
xlWorkSheet.Cells[3, 5] = "Pears";
xlWorkSheet.Cells[1, 6] = "80";
xlWorkSheet.Cells[2, 6] = "65";
xlWorkSheet.Cells[3, 6] = "45";
Excel.ChartObjects myCharts = (Excel.ChartObjects)xlWorkSheet.ChartObjects(Type.Missing);
// Specified xlWorkSheet.Cells[3, 6], xlWorkSheet.Cells[3, 6] just for the heck of it.
DrawFractionChart(xlWorkSheet, myCharts, xlWorkSheet.Cells[3, 6], xlWorkSheet.Cells[3, 6]);
//Once done close and quit Excel
//xlWorkBook.Close(true, misValue, misValue);
//xlexcel.Quit();
//releaseObject(xlWorkSheet);
//releaseObject(xlWorkBook);
//releaseObject(xlexcel);
}
private void DrawFractionChart(Excel.Worksheet activeSheet, Excel.ChartObjects xlCharts, Excel.Range xRange, Excel.Range yRange)
{
Excel.ChartObject myChart = (Excel.ChartObject)xlCharts.Add(200, 500, 200, 100);
Excel.Chart chartPage = myChart.Chart;
Excel.SeriesCollection seriesCollection = chartPage.SeriesCollection();
Excel.Series series1 = seriesCollection.NewSeries();
series1.XValues = activeSheet.Range["E1", "E3"];
series1.Values = activeSheet.Range["F1", "F3"];
chartPage.ChartType = Excel.XlChartType.xlDoughnut;
Excel.Axis axis = chartPage.Axes(Excel.XlAxisType.xlValue, Microsoft.Office.Interop.Excel.XlAxisGroup.xlPrimary) as Excel.Axis;
series1.ApplyDataLabels(Excel.XlDataLabelsType.xlDataLabelsShowPercent, true, true, false, true, true, true, true);
}
//private void releaseObject(object obj)
//{
// try
// {
// System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
// obj = null;
// }
// catch (Exception ex)
// {
// obj = null;
// MessageBox.Show("Unable to release the Object " + ex.ToString());
// }
// finally
// {
// GC.Collect();
// }
//}
}
}
SNAPSHOT
快照
#2
2
#region Export Excel To Chart
Excel.Range chartRange;
Excel.ChartObjects xlCharts = (Excel.ChartObjects)xlWorkSheet.ChartObjects(Type.Missing);
Excel.ChartObject myChart = (Excel.ChartObject)xlCharts.Add(300, 50, 500, 500);
Excel.Chart chartPage = myChart.Chart;
chartRange = xlWorkSheet.get_Range("A6", "B" + (counter-1));
chartPage.SetSourceData(chartRange, misValue);
chartPage.ChartType = Excel.XlChartType.xlPie;// type of chart
chartPage.ApplyDataLabels(Excel.XlDataLabelsType.xlDataLabelsShowPercent, Excel.XlDataLabelsType.xlDataLabelsShowLabel, true, false, false, true, false, true);// set label
chartPage.Export(@"C:\excel_chart_export.bmp","BMP",misValue );
#endregion
#3
1
The solution above didn't work for me in VS 2013 and Excel 2013.
上面的解决方案在VS 2013和Excel 2013中对我不起作用。
Add the following references:
添加以下参考:
Microsoft.Office.Core
Microsoft.Office.Interop.Excel
and use the following method:
并使用以下方法:
Chart oChart = ...
oChart.SetElement(Microsoft.Office.Core.MsoChartElementType.msoElementDataLabelOutSideEnd);
Source (MSDN):
来源(MSDN):
https://msdn.microsoft.com/en-us/library/microsoft.office.tools.excel.chart.setelement.aspx https://msdn.microsoft.com/en-us/library/microsoft.office.core.msochartelementtype.aspx
https://msdn.microsoft.com/en-us/library/microsoft.office.tools.excel.chart.setelement.aspx https://msdn.microsoft.com/en-us/library/microsoft.office.core .msochartelementtype.aspx
#1
6
Try this (TRIED AND TESTED)
试试这个(经过试验和测试)
private void DrawFractionChart(Excel.Worksheet activeSheet, Excel.ChartObjects xlCharts, Excel.Range xRange, Excel.Range yRange)
{
Excel.ChartObject myChart = (Excel.ChartObject)xlCharts.Add(200, 500, 200, 100);
Excel.Chart chartPage = myChart.Chart;
Excel.SeriesCollection seriesCollection = chartPage.SeriesCollection();
Excel.Series series1 = seriesCollection.NewSeries();
series1.XValues = activeSheet.Range["E1", "E3"];
series1.Values = activeSheet.Range["F1", "F3"];
chartPage.ChartType = Excel.XlChartType.xlDoughnut;
Excel.Axis axis = chartPage.Axes(Excel.XlAxisType.xlValue, Microsoft.Office.Interop.Excel.XlAxisGroup.xlPrimary) as Excel.Axis;
series1.ApplyDataLabels(Excel.XlDataLabelsType.xlDataLabelsShowPercent, true, true, false, true, true, true, true);
}
One quick question though. If you are not using xRange
and yRange
then why declare it?
但是一个简单的问题。如果你没有使用xRange和yRange那么为什么要声明呢?
This is the completed code that is tried and tested.
这是经过试验和测试的完整代码。
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Excel = Microsoft.Office.Interop.Excel;
namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
Microsoft.Office.Interop.Excel.Application xlexcel;
Microsoft.Office.Interop.Excel.Workbook xlWorkBook;
Microsoft.Office.Interop.Excel.Worksheet xlWorkSheet;
object misValue = System.Reflection.Missing.Value;
xlexcel = new Excel.Application();
xlexcel.Visible = true;
// Add a Workbook
xlWorkBook = xlexcel.Workbooks.Add();
// Set Sheet 1 as the sheet you want to work with
xlWorkSheet = (Excel.Worksheet)xlWorkBook.Worksheets.get_Item(1);
xlWorkSheet.Cells[1, 5] = "Apples";
xlWorkSheet.Cells[2, 5] = "Oranges";
xlWorkSheet.Cells[3, 5] = "Pears";
xlWorkSheet.Cells[1, 6] = "80";
xlWorkSheet.Cells[2, 6] = "65";
xlWorkSheet.Cells[3, 6] = "45";
Excel.ChartObjects myCharts = (Excel.ChartObjects)xlWorkSheet.ChartObjects(Type.Missing);
// Specified xlWorkSheet.Cells[3, 6], xlWorkSheet.Cells[3, 6] just for the heck of it.
DrawFractionChart(xlWorkSheet, myCharts, xlWorkSheet.Cells[3, 6], xlWorkSheet.Cells[3, 6]);
//Once done close and quit Excel
//xlWorkBook.Close(true, misValue, misValue);
//xlexcel.Quit();
//releaseObject(xlWorkSheet);
//releaseObject(xlWorkBook);
//releaseObject(xlexcel);
}
private void DrawFractionChart(Excel.Worksheet activeSheet, Excel.ChartObjects xlCharts, Excel.Range xRange, Excel.Range yRange)
{
Excel.ChartObject myChart = (Excel.ChartObject)xlCharts.Add(200, 500, 200, 100);
Excel.Chart chartPage = myChart.Chart;
Excel.SeriesCollection seriesCollection = chartPage.SeriesCollection();
Excel.Series series1 = seriesCollection.NewSeries();
series1.XValues = activeSheet.Range["E1", "E3"];
series1.Values = activeSheet.Range["F1", "F3"];
chartPage.ChartType = Excel.XlChartType.xlDoughnut;
Excel.Axis axis = chartPage.Axes(Excel.XlAxisType.xlValue, Microsoft.Office.Interop.Excel.XlAxisGroup.xlPrimary) as Excel.Axis;
series1.ApplyDataLabels(Excel.XlDataLabelsType.xlDataLabelsShowPercent, true, true, false, true, true, true, true);
}
//private void releaseObject(object obj)
//{
// try
// {
// System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
// obj = null;
// }
// catch (Exception ex)
// {
// obj = null;
// MessageBox.Show("Unable to release the Object " + ex.ToString());
// }
// finally
// {
// GC.Collect();
// }
//}
}
}
SNAPSHOT
快照
#2
2
#region Export Excel To Chart
Excel.Range chartRange;
Excel.ChartObjects xlCharts = (Excel.ChartObjects)xlWorkSheet.ChartObjects(Type.Missing);
Excel.ChartObject myChart = (Excel.ChartObject)xlCharts.Add(300, 50, 500, 500);
Excel.Chart chartPage = myChart.Chart;
chartRange = xlWorkSheet.get_Range("A6", "B" + (counter-1));
chartPage.SetSourceData(chartRange, misValue);
chartPage.ChartType = Excel.XlChartType.xlPie;// type of chart
chartPage.ApplyDataLabels(Excel.XlDataLabelsType.xlDataLabelsShowPercent, Excel.XlDataLabelsType.xlDataLabelsShowLabel, true, false, false, true, false, true);// set label
chartPage.Export(@"C:\excel_chart_export.bmp","BMP",misValue );
#endregion
#3
1
The solution above didn't work for me in VS 2013 and Excel 2013.
上面的解决方案在VS 2013和Excel 2013中对我不起作用。
Add the following references:
添加以下参考:
Microsoft.Office.Core
Microsoft.Office.Interop.Excel
and use the following method:
并使用以下方法:
Chart oChart = ...
oChart.SetElement(Microsoft.Office.Core.MsoChartElementType.msoElementDataLabelOutSideEnd);
Source (MSDN):
来源(MSDN):
https://msdn.microsoft.com/en-us/library/microsoft.office.tools.excel.chart.setelement.aspx https://msdn.microsoft.com/en-us/library/microsoft.office.core.msochartelementtype.aspx
https://msdn.microsoft.com/en-us/library/microsoft.office.tools.excel.chart.setelement.aspx https://msdn.microsoft.com/en-us/library/microsoft.office.core .msochartelementtype.aspx