A document can have one or more pages. It is probably easy to add a header for all pages of the document. If you want to add the header only for the first page of the document, Spire.Doc for .NET component can provide you an easy and flexible solution to handle it. The following steps will guide how to add a header into the first page of a document using Spire.Doc for .NET component in C#. In the example, the header is got from an existing document.

Step 1: Load a word document, documen1.docx.

Document document1 = new Document();
document1.LoadFromFile("D:\\document1.docx");

Step 2: Get the header of document1.docx.

HeaderFooter header = document1.Sections[0].HeadersFooters.Header;

Step 3: Load another word document which will be added the header, document2.docx.

Document document2 = new Document();
document2.LoadFromFile("D:\\document2.docx");

Step 4: Get the first page header of document2.docx.

HeaderFooter firstPageHeader = document2.Sections[0].HeadersFooters.FirstPageHeader;

Step 5: Specify that the current section has a different header/footer for the first page.

foreach (Section section in document2.Sections)
{
section.PageSetup.DifferentFirstPageHeaderFooter = true;
}

Step 6: Removes all child objects in firstPageHeader.

firstPageHeader.Paragraphs.Clear();

Step 7: Add all child objects of the header to firstPageHeader.

foreach (DocumentObject obj in header.ChildObjects)
{
firstPageHeader.ChildObjects.Add(obj.Clone());
}

Step 8: Save document2.docx to a new document, header.docx.

document2.SaveToFile("D:\\Header.docx"", FileFormat.Docx);

Full code:

Document document1 = new Document();
document1.LoadFromFile(@"..\..\document1.docx");
Document document2 = new Document();
document2.LoadFromFile(@"..\..\document2.docx");
HeaderFooter header = document1.Sections[0].HeadersFooters.Header;
HeaderFooter firstPageHeader = document2.Sections[0].HeadersFooters.FirstPageHeader;

foreach (Section section in document2.Sections)
{
section.PageSetup.DifferentFirstPageHeaderFooter = true;
}

firstPageHeader.Paragraphs.Clear();
foreach (DocumentObject obj in header.ChildObjects)
{
firstPageHeader.ChildObjects.Add(obj.Clone());
}

document2.SaveToFile("Header.docx", FileFormat.Docx);

Screenshots:

document1.docx:

document2.docx:

Header.docx:

Textboxes in Microsoft Word are versatile tools that enhance document layout and design. They allow users to position text independently of the main text flow, making it easier to create visually appealing documents. In some cases, you may need to extract text from textboxes for repurposing, or update the text inside a textbox to ensure clarity and relevance.

In this article, you will learn how to extract or update text in a textbox in a Word document using C# with Spire.Doc for .NET.

• Extract Text from Textbox in a Word Document
• Update a Textbox in a Word Document

Install Spire.Doc for .NET

To begin with, you need to add the DLL files included in the Spire.Doc for .NET package as references in your .NET project. The DLL files can be either downloaded from this link or installed via NuGet.

PM> Install-Package Spire.Doc

Extract Text from Textbox in a Word Document

Using Spire.Doc for .NET, you can access a specific text box in a document with the Document.TextBoxes[index] property. Iterate through the text box's child objects to check if each one is a paragraph or a table. For paragraphs, retrieve the text using the Paragraph.Text property. For tables, loop through the cells to extract text from each cell.

The steps to extract text from a textbox in a Word document are as follows:

• Create a Document object.
• Load a Word file using Document.LoadFromFile() method.
• Get a specific textbox using Document.TextBoxes[index] property
• Iterate through the child objects of the textbox.
• Determine if a child object if a paragraph. If yes, get the text from the paragraph using Paragraph.Text property.
• Determine if a child object if a table. If yes, get the text from the table using ExtractTextFromTable() method.

using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;

namespace ExtractTextFromTextbox
{
    class Program
    {
        static void Main(string[] args)
        {
            // Create a Document object
            Document document = new Document();

            // Load a Word file
            document.LoadFromFile("C:\\Users\\Administrator\\Desktop\\Input.docx");

            // Get a specific textbox
            TextBox textBox = document.TextBoxes[0];

            // Create a StreamWriter to write extracted text to a txt file
            using (StreamWriter sw = File.CreateText("result.txt"))
            {
                // Iterate though child objects of the textbox
                foreach (DocumentObject objt in textBox.ChildObjects)
                {
                    // Determine if the child object is a paragraph
                    if (objt.DocumentObjectType == DocumentObjectType.Paragraph)
                    {
                        // Write paragraph text to the txt file
                        sw.Write((objt as Paragraph).Text);
                    }

                    // Determine if the child object is a table
                    if (objt.DocumentObjectType == DocumentObjectType.Table)
                    {
                        // Extract text from table to the txt file
                        ExtractTextFromTable(objt as Table, sw);
                    }
                }

            }
 
        }

        // Extract text from a table
        static void ExtractTextFromTable(Table table, StreamWriter sw)
        {
            for (int i = 0; i < table.Rows.Count; i++)
            {
                TableRow row = table.Rows[i];
                for (int j = 0; j < row.Cells.Count; j++)
                {
                    TableCell cell = row.Cells[j];
                    foreach (Paragraph paragraph in cell.Paragraphs)
                    {
                        sw.Write(paragraph.Text);
                    }
                }
            }
        }
    }
}

Update a Textbox in a Word Document

To update a text box, first clear its existing content using the TextBox.ChildObjects.Clear() method. Then, add a new paragraph and set its text.

The steps to update a textbox in a Word document are as follows:

• Create a Document object.
• Load a Word file using Document.LoadFromFile() method.
• Get a specific textbox using Document.TextBoxes[index] property
• Remove existing content of the textbox using TextBox.ChildObjects.Clear() method.
• Add a paragraph to the textbox using TextBox.Body.AddParagraph() method.
• Add text to the paragraph using Paragraph.AppendText() method.
• Save the document to a different Word file.

using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;

namespace UpdateTextbox
{
    class Program
    {
        static void Main(string[] args)
        {
            // Create a Document object
            Document document = new Document();

            // Load a Word file
            document.LoadFromFile("C:\\Users\\Administrator\\Desktop\\Input.docx");

            // Get a specific textbox
            TextBox textBox = document.TextBoxes[0];

            // Remove child objects of the textbox
            textBox.ChildObjects.Clear();

            // Add a new paragraph to the textbox
            Paragraph paragraph = textBox.Body.AddParagraph();

            // Set line spacing
            paragraph.Format.LineSpacing = 15f;

            // Add text to the paragraph
            TextRange textRange = paragraph.AppendText("The text in this textbox has been updated.");

            // Set font size
            textRange.CharacterFormat.FontSize = 15f;

            // Save the document to a different Word file
            document.SaveToFile("UpdateTextbox.docx", FileFormat.Docx2019);

            // Dispose resources
            document.Dispose();
        }

    }

}

Apply for a Temporary License

If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.

Shading is a powerful feature in MS Word that adds a background color to specified text or paragraphs in a document. This not only enhances the visual appeal of the document, but also helps to differentiate between different sections and makes the content more readable. In this article, you will learn how to apply shading to a paragraph or text in Word in C# using Spire.Doc for .NET.

• Apply Paragraph Shading in Word in C#
• Apply Shading to Specified Text in Word in C#

Install Spire.Doc for .NET

To begin with, you need to add the DLL files included in the Spire.Doc for.NET package as references in your .NET project. The DLL files can be either downloaded from this link or installed via NuGet.

PM> Install-Package Spire.Doc

Apply Paragraph Shading in Word in C#

Spire.Doc for .NET provides developers with the Paragraph.Format.BackColor property to apply a background color to a specified paragraph in Word. The following are the detailed steps:

• Create a Document instance.
• Load a Word document using Document.LoadFromFile() method.
• Get a specified section using Document.Sections[] property.
• Get a specified paragraph using Section.Paragraphs[] property.
• Set a background color for the paragraph using Paragraph.Format.BackColor property.
• Save the result document using Document.SaveToFile() method.

using Spire.Doc;
using Spire.Doc.Documents;
using System.Drawing;

namespace WordParagrahShade
{
    class Program
    {
        static void Main(string[] args)
        {
            // Create a Document instance
            Document document = new Document();

            // Load a Word document 
            document.LoadFromFile("Sample.docx");

            // Get the first section
            Section section = document.Sections[0];

            // Get the second paragraph
            Paragraph paragaph = section.Paragraphs[1];

            // Set a background color for the paragraph
            paragaph.Format.BackColor = Color.Yellow;

            // Save the result document
            document.SaveToFile("ParagraphBackground.docx", FileFormat.Docx);
        }
    }
}

Apply Shading to Specified Text in Word in C#

If you only need to apply shading to specified text, you can first find the specific text through the Paragraph.Find() method, get its text range and then set a background color for the text range through the TextRange.CharacterFormat.TextBackgroundColor property. The following are the detailed steps:

• Create a Document instance.
• Load a Word document using Document.LoadFromFile() method.
• Get a specified section using Document.Sections[] property.
• Get a specified paragraph using Section.Paragraphs[] property.
• Find a specified text in the paragraph Paragraph.Find() method.
• Get the text range of the found text using TextSelection.GetAsOneRange() method.
• Set a background color for the text range using TextRange.CharacterFormat.TextBackgroundColor property.
• Save the document using Document.SaveToFile() method.

using Spire.Doc;
using Spire.Doc.Documents;
using Spire.Doc.Fields;
using System.Drawing;

namespace ShadeText
{
    class Program
    {
        static void Main(string[] args)
        {
            // Create a Document instance
            Document document = new Document();

            // Load a Word document
            document.LoadFromFile("Sample.docx");

            // Get the first section
            Section section = document.Sections[0];

            // Get the first paragraph
            Paragraph paragaph = section.Paragraphs[0];

            // Find a specified text in the paragraph
            TextSelection selection = paragaph.Find("Spire.Doc for .NET", true, false);

            // Get the text range of the found text 
            TextRange range = selection.GetAsOneRange();

            // Set a background color for the text range
            range.CharacterFormat.TextBackgroundColor = Color.Red;

            // Save the result document
            document.SaveToFile("TextBackground.docx", FileFormat.Docx);
        }
    }
}

Apply for a Temporary License

If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.