Knowledgebase (2311)
Children categories
Spire.XLS supports to convert the whole excel workbook into Image, PDF, HTML and other files formats; it also supports to hide or show the worksheet in C#. When we have hidden worksheet in the excel files, developers can also use Spire.XLS to only convert the visible or hidden excel worksheets to other file formats by judge the property of WorksheetVisibility. This article will show you how to only convert visible or hidden worksheet to image in C#.
Here comes to the steps:
Step 1: Create a new document and load from file.
Workbook book = new Workbook();
book.LoadFromFile("sample.xlsx", ExcelVersion.Version2010);
Step 2: Traverse every worksheet in the excel file.
foreach (Spire.Xls.Worksheet ws2 in book.Worksheets)
Step 3: Call the property of WorksheetVisibility to judge visible or hidden excel worksheet.
//only converts the visible sheet if (ws2.Visibility == WorksheetVisibility.Visible) //only converts the hidden sheet if (ws2.Visibility == WorksheetVisibility.Hidden)
Step 4: Use SaveToImage to convert Excel worksheet to Image.
ws2.SaveToImage("result.jpg");
Effective screenshots:
Only convert the visible worksheet to Image in .jpg format.
Only convert the hidden worksheet to Image in .png format.
Full codes:
using Spire.Xls;
namespace Convert
{
class Program
{
static void Main(string[] args)
{
Workbook book = new Workbook();
book.LoadFromFile("sample.xlsx", ExcelVersion.Version2010);
foreach (Spire.Xls.Worksheet ws2 in book.Worksheets)
{
//only convert the visible sheet
if (ws2.Visibility == WorksheetVisibility.Visible)
////only convert the hidden sheet
//if (ws2.Visibility == WorksheetVisibility.Hidden)
ws2.SaveToImage("result.jpg");
}
}
}
}
In the MS Word Header & Footer Tools options, we could choose "Different First Page" and "Different odd and even pages". The article "How to create different headers/footers for odd and even pages" introduces the method to set different odd and even pages using Spire.Doc. Spire.DOC also provides an easy and quick method to add different first page header & footer. This article is going to introduce the method to add different first page header & footer.
FYI, if you only need the first page header and footer, please just set the first page header & footer and leave the rest alone. In this way, your Word document will only have header & footer in the first page, which provides a simpler way to add a header only into the first page of a document than the method mentioned in the article "How to add a header only into the first page of a document".
Note: before start, please download the latest version of Spire.Doc and add Spire.Doc .dll in the bin folder as the reference of Visual Studio.
Step 1: Load the sample document that only contains text.
Document document = new Document();
document.LoadFromFile("T.docx");
Step 2: Get the section and set the property true.
Section section = document.Sections[0]; section.PageSetup.DifferentFirstPageHeaderFooter = true;
Step 3: Set the first page header. Here we append a picture as the header.
Paragraph paragraph1 = section.HeadersFooters.FirstPageHeader.AddParagraph();
paragraph1.Format.HorizontalAlignment = HorizontalAlignment.Right;
DocPicture headerimage = paragraph1.AppendPicture(Image.FromFile("2.bmp"));
Step 4: Set the first page footer.
Paragraph paragraph2 = section.HeadersFooters.FirstPageFooter.AddParagraph();
paragraph2.Format.HorizontalAlignment = HorizontalAlignment.Center;
TextRange FF = paragraph2.AppendText("First Page Footer");
FF.CharacterFormat.FontSize = 20;
Step 5: Set the other header & footer. If you only need the first page header & footer, don't set this.
Paragraph paragraph3 = section.HeadersFooters.Header.AddParagraph();
paragraph3.Format.HorizontalAlignment = HorizontalAlignment.Center;
TextRange NH = paragraph3.AppendText("If you only need first page header, don't set this.");
NH.CharacterFormat.FontSize = 20;
Paragraph paragraph4 = section.HeadersFooters.Footer.AddParagraph();
paragraph4.Format.HorizontalAlignment = HorizontalAlignment.Center;
TextRange NF = paragraph4.AppendText("If you only need first page footer, don't set this.");
NF.CharacterFormat.FontSize = 20;
Step 6: save the document and launch to see effects.
document.SaveToFile("R.docx", FileFormat.Docx2010);
System.Diagnostics.Process.Start("R.docx");
Effects:
Full codes:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;
using System.Drawing;
namespace Mirror_Margin
{
class Program
{
static void Main(string[] args)
{
Document document = new Document();
document.LoadFromFile("T.docx");
Section section = document.Sections[0];
section.PageSetup.DifferentFirstPageHeaderFooter = true;
Paragraph paragraph1 = section.HeadersFooters.FirstPageHeader.AddParagraph();
paragraph1.Format.HorizontalAlignment = HorizontalAlignment.Right;
DocPicture headerimage = paragraph1.AppendPicture(Image.FromFile("2.bmp"));
Paragraph paragraph2 = section.HeadersFooters.FirstPageFooter.AddParagraph();
paragraph2.Format.HorizontalAlignment = HorizontalAlignment.Center;
TextRange FF = paragraph2.AppendText("First Page Footer");
FF.CharacterFormat.FontSize = 20;
Paragraph paragraph3 = section.HeadersFooters.Header.AddParagraph();
paragraph3.Format.HorizontalAlignment = HorizontalAlignment.Center;
TextRange NH = paragraph3.AppendText("If you only need first page header, don't set this.");
NH.CharacterFormat.FontSize = 20;
Paragraph paragraph4 = section.HeadersFooters.Footer.AddParagraph();
paragraph4.Format.HorizontalAlignment = HorizontalAlignment.Center;
TextRange NF = paragraph4.AppendText("If you only need first page footer, don't set this.");
NF.CharacterFormat.FontSize = 20;
document.SaveToFile("R.docx", FileFormat.Docx2010);
System.Diagnostics.Process.Start("R.docx");
}
}
}
OLE object is used to make content created in one program available in another program, for instance, we can insert Word as OLE object in Excel sheet.
As a robust component, Spire.XLS supports to insert Word and PowerPoint slide as linked object or embedded object into Excel. In this article, we make an example to explain how to insert Word as OLE object into Excel using Spire.XLS and Spire.Doc. Before coding, you need to download Spire.Office and reference related the Dlls in your VS project.
Code Snippet:
Step 1: Define a GetDocImage(string doxcFile) method to get olePicture. Actually, the olePicture is an image of data information in original Word document. The image generated from the specified page will be shown in Excel sheet after inserting OLE object into it.
private static Image GetDocImage(string docxFile)
{
Document document = new Document();
document.LoadFromFile(docxFile);
return document.SaveToImages(0, Spire.Doc.Documents.ImageType.Bitmap);
}
Step 2: Insert OLE object in Excel. After getting the worksheet from Excel file, we call GetDocImage(string doxcFile) method which is defined in the first step to get image source and then use the ws.OleObjects.Add(string FileName, Image image, OleLinkType linkType) method to insert the new OLE object to worksheet.
static void Main(string[] args)
{
//load Excel file
Workbook workbook = new Workbook();
workbook.LoadFromFile("d:\\sample.xlsx");
Worksheet ws = workbook.Worksheets[0];
//insert OLE object
string docx = "d:\\sample.docx";
Image image = GetDocImage(docx);
IOleObject oleObject = ws.OleObjects.Add(docx,image,OleLinkType.Embed);
oleObject.Location=ws.Range["B4"];
oleObject.ObjectType = OleObjectType.WordDocument;
//save the file
workbook.SaveToFile("result.xlsx",ExcelVersion.Version2010);
System.Diagnostics.Process.Start("result.xlsx");
}
Result:
Full Code:
using Spire.Doc;
using Spire.Xls;
using Spire.Xls.Core;
using System.Drawing;
namespace InsertOLEObject
{
class Program
{
private static Image GetDocImage(string docxFile)
{
Document document = new Document();
document.LoadFromFile(docxFile);
return document.SaveToImages(0, Spire.Doc.Documents.ImageType.Bitmap);
}
static void Main(string[] args)
{
//load Excel file
Workbook workbook = new Workbook();
workbook.LoadFromFile("d:\\sample.xlsx");
Worksheet ws = workbook.Worksheets[0];
//insert OLE object
string docx = "d:\\sample.docx";
Image image = GetDocImage(docx);
IOleObject oleObject = ws.OleObjects.Add(docx, image, OleLinkType.Embed);
oleObject.Location = ws.Range["B4"];
oleObject.ObjectType = OleObjectType.WordDocument;
//save the file
workbook.SaveToFile("result.xlsx", ExcelVersion.Version2010);
System.Diagnostics.Process.Start("result.xlsx");
}
}
}
Imports Spire.Doc
Imports Spire.Xls
Imports Spire.Xls.Core
Imports System.Drawing
Namespace InsertOLEObject
Class Program
Private Shared Function GetDocImage(docxFile As String) As Image
Dim document As New Document()
document.LoadFromFile(docxFile)
Return document.SaveToImages(0, Spire.Doc.Documents.ImageType.Bitmap)
End Function
Private Shared Sub Main(args As String())
'load Excel file
Dim workbook As New Workbook()
workbook.LoadFromFile("d:\sample.xlsx")
Dim ws As Worksheet = workbook.Worksheets(0)
'insert OLE object
Dim docx As String = "d:\sample.docx"
Dim image As Image = GetDocImage(docx)
Dim oleObject As IOleObject = ws.OleObjects.Add(docx, image, OleLinkType.Embed)
oleObject.Location = ws.Range("B4")
oleObject.ObjectType = OleObjectType.WordDocument
'save the file
workbook.SaveToFile("result.xlsx", ExcelVersion.Version2010)
System.Diagnostics.Process.Start("result.xlsx")
End Sub
End Class
End Namespace
