إنشاء وتضمين مخطط Excel ككائن OLE
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المثالان البرمجيان أدناه طويلان ومفصّلان لأن المهمة التي يصفانها معقدة. تقوم بإنشاء مصنف Microsoft Excel، ثم إنشاء مخطط، ثم إنشاء عرض تقديمي Microsoft PowerPoint ستضمّن المخطط فيه. كائنات OLE تحتوي على روابط إلى المستند الأصلي، لذلك عندما ينقر المستخدم مرتين على الملف المضمّن سيفتح الملف وتطبيقه.
VSTO
باستخدام VSTO، يتم تنفيذ الخطوات التالية:
- إنشاء نسخة من كائن Microsoft Excel ApplicationClass.
- إنشاء مصنف جديد يحتوي على ورقة واحدة.
- إضافة مخطط إلى الورقة.
- حفظ المصنف.
- فتح مصنف Excel الذي يحتوي على ورقة العمل التي تتضمن بيانات المخطط.
- الحصول على مجموعة ChartObjects للورقة.
- الحصول على المخطط للنسخ.
- إنشاء عرض تقديمي Microsoft PowerPoint.
- إضافة شريحة فارغة إلى العرض التقديمي.
- نسخ المخطط من ورقة عمل Excel إلى الحافظة.
- لصق المخطط داخل عرض PowerPoint التقديمي.
- تحديد موضع المخطط على الشريحة.
- حفظ العرض التقديمي.
public void SetCellValue(xlNS.Worksheet targetSheet, string Cell, object Value)
{
targetSheet.get_Range(Cell, Cell).set_Value(xlNS.XlRangeValueDataType.xlRangeValueDefault, Value);
}
public void CreateNewChartInExcel()
{
// Declare a variable for the Excel ApplicationClass instance.
Microsoft.Office.Interop.Excel.Application excelApplication = new xlNS.Application() ;//new Microsoft.Office.Interop.Excel.ApplicationClass();
// Declare variables for the Workbooks.Open method parameters.
string paramWorkbookPath = System.Windows.Forms.Application.StartupPath+@"\ChartData.xlsx";
object paramMissing = Type.Missing;
// Declare variables for the Chart.ChartWizard method.
object paramChartFormat = 1;
object paramCategoryLabels = 0;
object paramSeriesLabels = 0;
bool paramHasLegend = true;
object paramTitle = "Sales by Quarter";
object paramCategoryTitle = "Fiscal Quarter";
object paramValueTitle = "Billions";
try
{
// Create an instance of the Excel ApplicationClass object.
// excelApplication = new Microsoft.Office.Interop.Excel.ApplicationClass();
// Create a new workbook with 1 sheet in it.
xlNS.Workbook newWorkbook = excelApplication.Workbooks.Add(xlNS.XlWBATemplate.xlWBATWorksheet);
// Change the name of the sheet.
xlNS.Worksheet targetSheet = (xlNS.Worksheet)(newWorkbook.Worksheets[1]);
targetSheet.Name = "Quarterly Sales";
// Insert some data for the chart into the sheet.
// A B C D E
// 1 Q1 Q2 Q3 Q4
// 2 N. America 1.5 2 1.5 2.5
// 3 S. America 2 1.75 2 2
// 4 Europe 2.25 2 2.5 2
// 5 Asia 2.5 2.5 2 2.75
SetCellValue(targetSheet, "A2", "N. America");
SetCellValue(targetSheet, "A3", "S. America");
SetCellValue(targetSheet, "A4", "Europe");
SetCellValue(targetSheet, "A5", "Asia");
SetCellValue(targetSheet, "B1", "Q1");
SetCellValue(targetSheet, "B2", 1.5);
SetCellValue(targetSheet, "B3", 2);
SetCellValue(targetSheet, "B4", 2.25);
SetCellValue(targetSheet, "B5", 2.5);
SetCellValue(targetSheet, "C1", "Q2");
SetCellValue(targetSheet, "C2", 2);
SetCellValue(targetSheet, "C3", 1.75);
SetCellValue(targetSheet, "C4", 2);
SetCellValue(targetSheet, "C5", 2.5);
SetCellValue(targetSheet, "D1", "Q3");
SetCellValue(targetSheet, "D2", 1.5);
SetCellValue(targetSheet, "D3", 2);
SetCellValue(targetSheet, "D4", 2.5);
SetCellValue(targetSheet, "D5", 2);
SetCellValue(targetSheet, "E1", "Q4");
SetCellValue(targetSheet, "E2", 2.5);
SetCellValue(targetSheet, "E3", 2);
SetCellValue(targetSheet, "E4", 2);
SetCellValue(targetSheet, "E5", 2.75);
// Get the range holding the chart data.
xlNS.Range dataRange = targetSheet.get_Range("A1", "E5");
// Get the ChartObjects collection for the sheet.
xlNS.ChartObjects chartObjects = (xlNS.ChartObjects)(targetSheet.ChartObjects(paramMissing));
// Add a Chart to the collection.
xlNS.ChartObject newChartObject = chartObjects.Add(0, 100, 600, 300);
newChartObject.Name = "Sales Chart";
// Create a new chart of the data.
newChartObject.Chart.ChartWizard(dataRange, xlNS.XlChartType.xl3DColumn, paramChartFormat, xlNS.XlRowCol.xlRows,
paramCategoryLabels, paramSeriesLabels, paramHasLegend, paramTitle, paramCategoryTitle, paramValueTitle, paramMissing);
// Save the workbook.
newWorkbook.SaveAs(paramWorkbookPath, paramMissing, paramMissing, paramMissing, paramMissing,
paramMissing, xlNS.XlSaveAsAccessMode.xlNoChange, paramMissing, paramMissing, paramMissing, paramMissing, paramMissing);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
if (excelApplication != null)
{
// Close Excel.
excelApplication.Quit();
}
}
}
public void UseCopyPaste()
{
// Declare variables to hold references to PowerPoint objects.
pptNS.Application powerpointApplication = null;
pptNS.Presentation pptPresentation = null;
pptNS.Slide pptSlide = null;
pptNS.ShapeRange shapeRange = null;
// Declare variables to hold references to Excel objects.
xlNS.Application excelApplication = null;
xlNS.Workbook excelWorkBook = null;
xlNS.Worksheet targetSheet = null;
xlNS.ChartObjects chartObjects = null;
xlNS.ChartObject existingChartObject = null;
string paramPresentationPath = System.Windows.Forms.Application.StartupPath + @"\ChartTest.pptx";
string paramWorkbookPath = System.Windows.Forms.Application.StartupPath + @"\ChartData.xlsx";
object paramMissing = Type.Missing;
try
{
// Create an instance of PowerPoint.
powerpointApplication =new pptNS.Application();
// Create an instance Excel.
excelApplication = new xlNS.Application();
// Open the Excel workbook containing the worksheet with the chart data.
excelWorkBook = excelApplication.Workbooks.Open(paramWorkbookPath,
paramMissing, paramMissing, paramMissing, paramMissing, paramMissing,
paramMissing, paramMissing, paramMissing, paramMissing, paramMissing,
paramMissing, paramMissing, paramMissing, paramMissing);
// Get the worksheet that contains the chart.
targetSheet =
(xlNS.Worksheet)(excelWorkBook.Worksheets["Quarterly Sales"]);
// Get the ChartObjects collection for the sheet.
chartObjects =
(xlNS.ChartObjects)(targetSheet.ChartObjects(paramMissing));
// Get the chart to copy.
existingChartObject =
(xlNS.ChartObject)(chartObjects.Item("Sales Chart"));
// Create a PowerPoint presentation.
pptPresentation =
powerpointApplication.Presentations.Add(
Microsoft.Office.Core.MsoTriState.msoTrue);
// Add a blank slide to the presentation.
pptSlide =
pptPresentation.Slides.Add(1, pptNS.PpSlideLayout.ppLayoutBlank);
// Copy the chart from the Excel worksheet to the clipboard.
existingChartObject.Copy();
// Paste the chart into the PowerPoint presentation.
shapeRange = pptSlide.Shapes.Paste();
// Position the chart on the slide.
shapeRange.Left = 60;
shapeRange.Top = 100;
// Save the presentation.
pptPresentation.SaveAs(paramPresentationPath, pptNS.PpSaveAsFileType.ppSaveAsOpenXMLPresentation, Microsoft.Office.Core.MsoTriState.msoTrue);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
// Release the PowerPoint slide object.
shapeRange = null;
pptSlide = null;
// Close and release the Presentation object.
if (pptPresentation != null)
{
pptPresentation.Close();
pptPresentation = null;
}
// Quit PowerPoint and release the ApplicationClass object.
if (powerpointApplication != null)
{
powerpointApplication.Quit();
powerpointApplication = null;
}
// Release the Excel objects.
targetSheet = null;
chartObjects = null;
existingChartObject = null;
// Close and release the Excel Workbook object.
if (excelWorkBook != null)
{
excelWorkBook.Close(false, paramMissing, paramMissing);
excelWorkBook = null;
}
// Quit Excel and release the ApplicationClass object.
if (excelApplication != null)
{
excelApplication.Quit();
excelApplication = null;
}
GC.Collect();
GC.WaitForPendingFinalizers();
GC.Collect();
GC.WaitForPendingFinalizers();
}
}
private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
CreateNewChartInExcel();
UseCopyPaste();
}
Aspose.Slides
باستخدام Aspose.Slides for .NET، يتم تنفيذ الخطوات التالية:
- إنشاء مصنف باستخدام Aspose.Cells for .NET.
- إنشاء مخطط Microsoft Excel.
- تحديد حجم OLE لمخطط Excel.
- الحصول على صورة للمخطط.
- تضمين مخطط Excel ككائن OLE داخل عرض PPTX باستخدام Aspose.Slides for .NET.
- استبدال صورة الكائن المتغيّر بالصورة التي تم الحصول عليها في الخطوة 3 لمعالجة مشكلة تغيير الكائن.
- كتابة العرض التقديمي الناتج إلى القرص بصيغة PPTX.
static void Main(string[] args)
{
//Create a workbook
Workbook wb = new Workbook();
//Add an excel chart
int chartSheetIndex = AddExcelChartInWorkbook(wb);
wb.Worksheets.SetOleSize(0, 5, 0, 5);
Bitmap imgChart = wb.Worksheets[chartSheetIndex].Charts[0].ToImage();
//Save the workbook to stream
MemoryStream wbStream = wb.SaveToStream();
//Create a presentation
PresentationEx pres = new PresentationEx();
SlideEx sld = pres.Slides[0];
//Add the workbook on slide
AddExcelChartInPresentation(pres, sld, wbStream, imgChart);
//Write the output presentation on disk
pres.Write("chart.pptx");
}
static int AddExcelChartInWorkbook(Workbook wb)
{
//Add a new worksheet to populate cells with data
int dataSheetIdx = wb.Worksheets.Add();
Worksheet dataSheet = wb.Worksheets[dataSheetIdx];
string sheetName = "DataSheet";
dataSheet.Name = sheetName;
//Populate DataSheet with data
dataSheet.Cells["A2"].PutValue("N. America");
dataSheet.Cells["A3"].PutValue("S. America");
dataSheet.Cells["A4"].PutValue("Europe");
dataSheet.Cells["A5"].PutValue("Asia");
dataSheet.Cells["B1"].PutValue("Q1");
dataSheet.Cells["B2"].PutValue(1.5);
dataSheet.Cells["B3"].PutValue(2);
dataSheet.Cells["B4"].PutValue(2.25);
dataSheet.Cells["B5"].PutValue(2.5);
dataSheet.Cells["C1"].PutValue("Q2");
dataSheet.Cells["C2"].PutValue(2);
dataSheet.Cells["C3"].PutValue(1.75);
dataSheet.Cells["C4"].PutValue(2);
dataSheet.Cells["C5"].PutValue(2.5);
dataSheet.Cells["D1"].PutValue("Q3");
dataSheet.Cells["D2"].PutValue(1.5);
dataSheet.Cells["D3"].PutValue(2);
dataSheet.Cells["D4"].PutValue(2.5);
dataSheet.Cells["D5"].PutValue(2);
dataSheet.Cells["E1"].PutValue("Q4");
dataSheet.Cells["E2"].PutValue(2.5);
dataSheet.Cells["E3"].PutValue(2);
dataSheet.Cells["E4"].PutValue(2);
dataSheet.Cells["E5"].PutValue(2.75);
//Add a chart sheet
int chartSheetIdx = wb.Worksheets.Add(SheetType.Chart);
Worksheet chartSheet = wb.Worksheets[chartSheetIdx];
chartSheet.Name = "ChartSheet";
//Add a chart in ChartSheet with data series from DataSheet
int chartIdx = chartSheet.Charts.Add(ChartType.Column3DClustered, 0, 5, 0, 5);
Aspose.Cells.Charts.Chart chart = chartSheet.Charts[chartIdx];
chart.NSeries.Add(sheetName + "!A1:E5", false);
//Setting Chart's Title
chart.Title.Text = "Sales by Quarter";
//Setting the foreground color of the plot area
chart.PlotArea.Area.ForegroundColor = Color.White;
//Setting the background color of the plot area
chart.PlotArea.Area.BackgroundColor = Color.White;
//Setting the foreground color of the chart area
chart.ChartArea.Area.BackgroundColor = Color.White;
chart.Title.TextFont.Size = 16;
//Setting the title of category axis of the chart
chart.CategoryAxis.Title.Text = "Fiscal Quarter";
//Setting the title of value axis of the chart
chart.ValueAxis.Title.Text = "Billions";
//Set ChartSheet an active sheet
wb.Worksheets.ActiveSheetIndex = chartSheetIdx;
return chartSheetIdx;
}
private static void AddExcelChartInPresentation(PresentationEx pres, SlideEx sld, Stream wbStream, Bitmap imgChart)
{
float oleWidth = pres.SlideSize.Size.Width;
float oleHeight = pres.SlideSize.Size.Height;
int x = 0;
byte[] chartOleData = new byte[wbStream.Length];
wbStream.Position = 0;
wbStream.Read(chartOleData, 0, chartOleData.Length);
OleObjectFrameEx oof = null;
oof = sld.Shapes.AddOleObjectFrame(x, 0, oleWidth, oleHeight, "Excel.Sheet.8", chartOleData);
using (MemoryStream imageStream = new MemoryStream())
{
imgChart.Save(imageStream, System.Drawing.Imaging.ImageFormat.Png);
imageStream.Position = 0;
IPPImage ppImage = pres.Images.AddImage(imageStream);
oof.SubstitutePictureFormat.Picture.Image = ppImage;
}
}