How to Generate a Word Document Using a Word Template in C#

In modern-day applications, it is crucial to generate Word documents on the fly for various purposes like billing, invoices, letters, etc. The Microsoft Word template document feature offers a powerful way to ensure consistency and efficiency. However, manually populating these templates can be time-consuming and prone to errors. That’s where IronWord from IronSoftware comes in—a robust .NET library designed to automate the process of filling Word templates programmatically. In this article, we’ll walk through how to use IronWord to fill a Word document template and provide a practical example to illustrate the process.

How to Generate a Word Document Using a Word Template in C#

1. Create a new project in Microsoft Visual Studio.
2. Install IronWord through NuGet package manager.
3. Create a Word Template document.
4. Inserting data into a Word document and saving it as a new file.
5. Add text effects to the generated Word document.

What is IronWord?

IronWord is a .NET library from IronSoftware designed to facilitate the creation, manipulation, and management of Microsoft Word documents programmatically. It allows developers to automate the process of generating Word documents, making it easier to dynamically create reports, invoices, letters, and other types of documents within their applications.

Key Features of IronWord

1. C# Fill Word Template and Handling

IronWord enables the use of Word templates to define placeholders in a template document and replace them with actual data at runtime.

2. Text Manipulation

You can easily insert, replace, or delete text within a Word document.

3. Formatting

The library supports various formatting options, including font styles, sizes, colors, and paragraph alignment.

4. Tables and Images

IronWord allows you to insert and manipulate tables and images within your documents.

5. Compatibility

It works seamlessly with different versions of Microsoft Word, ensuring compatibility and ease of use.

Use Cases

• Report Generation: Automatically generate detailed reports with dynamic data.
• Invoice Creation: Create professional invoices by filling in customer and transaction details.
• Contract Management: Automate the creation of contracts with personalized information.
• Letters and Notices: Generate personalized letters and notices for clients or employees.

IronWord simplifies working with Word documents in .NET applications, making it a valuable tool for developers who want to automate document generation and management tasks.

Prerequisites

A quick reminder to make sure you have the following before we get started:

• Visual Studio is installed on your machine.
• The latest .NET Framework is installed.

Step 1: Create a new project in Microsoft Visual Studio.

Now, let us begin by creating a new Visual Studio project.

Select the console application template on the screen below.

Provide the project name and location.

Select the .NET Version, preferably the latest one with support, and click Create.

Step 2: Install IronWord NuGet Package manager.

Install IronWord NuGet package from NuGet package manager as below in Visual Studio.

Alternatively, please install it using CLI directly using the command below.

dotnet add package IronWord --version 2024.9.1

dotnet add package IronWord --version 2024.9.1

'INSTANT VB TODO TASK: The following line uses invalid syntax:
'dotnet add package IronWord --version 2024.9.1

Step 3: Create a Word Template document.

Now, generate a Word template document with one or two pages to be used during the Word document generation process.

Dear {Name},
Thanks for Purchasing {product}, happy to serve you always. Your application dated {Date} has been approved. The product comes with an expiry date of {expiryDate}. Renew the product on or before expiry date.
Fell Free to contact {phone} or {email} for further queries.
Address: {Address}
Thank you,
{Sender}

Dear {Name},
Thanks for Purchasing {product}, happy to serve you always. Your application dated {Date} has been approved. The product comes with an expiry date of {expiryDate}. Renew the product on or before expiry date.
Fell Free to contact {phone} or {email} for further queries.
Address: {Address}
Thank you,
{Sender}

Dear
If True Then
	Name
End If
'INSTANT VB TODO TASK: Local functions are not converted by Instant VB:
', Thanks for Purchasing
'{
'	product
'}
'INSTANT VB TODO TASK: Local functions are not converted by Instant VB:
', happy @to serve you always.Your application dated
'{
'	@Date
'}
'INSTANT VB TODO TASK: Local functions are not converted by Instant VB:
'has been approved.The product comes @with an expiry @date @of
'{
'	expiryDate
'}
'INSTANT VB TODO TASK: Local functions are not converted by Instant VB:
'.Renew the product on @or before expiry @date.Fell Free @to contact
'{
'	phone
'}
'INSTANT VB TODO TASK: Local functions are not converted by Instant VB:
'@or {email} for further queries.Address:
'{
'	Address
'}
Thank you,
If True Then
'INSTANT VB TODO TASK: The following line uses invalid syntax:
'	Sender}

Now save the document above as Template.docx.

Step 4: Inserting data into a Word document and saving as a new file.

using IronWord;
class Program
{
    static void Main()
    {
        License.LicenseKey = "your key";
        // Define the path to the template and the output file object sender
        string templatePath = "Template.docx";
        string outputPath = "FilledDocument.docx";
        // Create a new instance of the WordDocument class
        WordDocument doc = new WordDocument(templatePath);
            // Define a dictionary/ first table of placeholders and their replacements
            var replacements = new Dictionary<string, string>
            {
                { "{Name}", "John Doe" },
                { "{Date}", DateTime.Now.ToString("MMMM d, yyyy") },
                { "{Address}", "123 Iron Street, IronSoftware" },
                { "{product}", "IronWord" },
                { "{Sender}", "IronSoftware" },
                { "{phone}", "+123 456789" },
                { "{email}", "sale@ironsoftware.com" },
                { "{expiryDate}", DateTime.Now.AddYears(1).ToString("MMMM d, yyyy") },
            };
            // Replace placeholders with actual data
            foreach (var replacement in replacements)
            {
                doc.Texts.ForEach(x=>x.Replace(replacement.Key, replacement.Value));
            }
            // Save the filled document
           doc.Save(outputPath);
        Console.WriteLine("Document filled and saved successfully.");
    }
}

using IronWord;
class Program
{
    static void Main()
    {
        License.LicenseKey = "your key";
        // Define the path to the template and the output file object sender
        string templatePath = "Template.docx";
        string outputPath = "FilledDocument.docx";
        // Create a new instance of the WordDocument class
        WordDocument doc = new WordDocument(templatePath);
            // Define a dictionary/ first table of placeholders and their replacements
            var replacements = new Dictionary<string, string>
            {
                { "{Name}", "John Doe" },
                { "{Date}", DateTime.Now.ToString("MMMM d, yyyy") },
                { "{Address}", "123 Iron Street, IronSoftware" },
                { "{product}", "IronWord" },
                { "{Sender}", "IronSoftware" },
                { "{phone}", "+123 456789" },
                { "{email}", "sale@ironsoftware.com" },
                { "{expiryDate}", DateTime.Now.AddYears(1).ToString("MMMM d, yyyy") },
            };
            // Replace placeholders with actual data
            foreach (var replacement in replacements)
            {
                doc.Texts.ForEach(x=>x.Replace(replacement.Key, replacement.Value));
            }
            // Save the filled document
           doc.Save(outputPath);
        Console.WriteLine("Document filled and saved successfully.");
    }
}

Imports IronWord
Friend Class Program
	Shared Sub Main()
		License.LicenseKey = "your key"
		' Define the path to the template and the output file object sender
		Dim templatePath As String = "Template.docx"
		Dim outputPath As String = "FilledDocument.docx"
		' Create a new instance of the WordDocument class
		Dim doc As New WordDocument(templatePath)
			' Define a dictionary/ first table of placeholders and their replacements
			Dim replacements = New Dictionary(Of String, String) From {
				{"{Name}", "John Doe"},
				{"{Date}", DateTime.Now.ToString("MMMM d, yyyy")},
				{"{Address}", "123 Iron Street, IronSoftware"},
				{"{product}", "IronWord"},
				{"{Sender}", "IronSoftware"},
				{"{phone}", "+123 456789"},
				{"{email}", "sale@ironsoftware.com"},
				{"{expiryDate}", DateTime.Now.AddYears(1).ToString("MMMM d, yyyy")}
			}
			' Replace placeholders with actual data
			For Each replacement In replacements
				doc.Texts.ForEach(Function(x) x.Replace(replacement.Key, replacement.Value))
			Next replacement
			' Save the filled document
		   doc.Save(outputPath)
		Console.WriteLine("Document filled and saved successfully.")
	End Sub
End Class

Explanation

The provided code demonstrates using the IronWord library to fill a Word document template with specific data. Here’s a concise explanation:

1. License Setup: The code begins by setting the license key for IronWord to activate its functionality.
2. File Paths: It specifies the paths for the Word template (`Template.docx`) and the output file (`FilledDocument.docx`).3. Create Document Instance: An instance of `WordDocument` is created using the template path reference.
3. Define Replacements: A dictionary is created where keys represent placeholders in the template and values represent the data to insert.5. Replace Placeholders: It iterates through the dictionary, replacing each placeholder in the document with the corresponding data.
4. Save Document: Finally, the updated document is saved to the specified output path with the save method and passing parameters.7. Completion Message: A message is printed to confirm that the document has been successfully filled and saved.

Output

Step 5: Add text effects to generated Word document.

IronWord also allows adding various text effects, as shown in the table below.

In the following example, we add text effects to the Word IronSoftware.

using IronWord;
using IronWord.Models;
class Program
{
    static void Main()
    {
        License.LicenseKey = "your key";
        // Define the path to the template and the output file
        string templatePath = "Template.docx";
        string outputPath = "FilledDocument.docx";
        // Create a new instance of the WordDocument class
        WordDocument doc = new WordDocument(templatePath);
            // Define a dictionary of placeholders and their replacements
            var replacements = new Dictionary<string, string>
            {
                { "{Name}", "John Doe" },
                { "{Date}", DateTime.Now.ToString("MMMM d, yyyy") },
                { "{Address}", "123 Iron Street, IronSoftware" },
                { "{product}", "IronWord" },
                { "{Sender}", "Sale," },
                { "{phone}", "+123 456789" },
                { "{email}", "sale@ironsoftware.com" },
                { "{expiryDate}", DateTime.Now.AddYears(1).ToString("MMMM d, yyyy") },
            };
            // Replace placeholders with actual data
            foreach (var replacement in replacements)
            {
                doc.Texts.ForEach(x=>x.Replace(replacement.Key, replacement.Value));
            }
        // Save the filled document
        //doc.Save(outputPath);
        //Console.WriteLine("Document filled and saved successfully.");
        // Create and configure text style methods
        TextStyle textStyle = new TextStyle();
        textStyle.TextEffect = new TextEffect()
        {
            GlowEffect = new Glow()
            {
                GlowColor = IronWord.Models.Color.Aqua,
                GlowRadius = 10,
            },
        };
        // Add text with style or image
        doc.AddText(" IronSoftware").Style = textStyle;
        // Export new Word document
        doc.SaveAs("glowEffect.docx");
    }
}

using IronWord;
using IronWord.Models;
class Program
{
    static void Main()
    {
        License.LicenseKey = "your key";
        // Define the path to the template and the output file
        string templatePath = "Template.docx";
        string outputPath = "FilledDocument.docx";
        // Create a new instance of the WordDocument class
        WordDocument doc = new WordDocument(templatePath);
            // Define a dictionary of placeholders and their replacements
            var replacements = new Dictionary<string, string>
            {
                { "{Name}", "John Doe" },
                { "{Date}", DateTime.Now.ToString("MMMM d, yyyy") },
                { "{Address}", "123 Iron Street, IronSoftware" },
                { "{product}", "IronWord" },
                { "{Sender}", "Sale," },
                { "{phone}", "+123 456789" },
                { "{email}", "sale@ironsoftware.com" },
                { "{expiryDate}", DateTime.Now.AddYears(1).ToString("MMMM d, yyyy") },
            };
            // Replace placeholders with actual data
            foreach (var replacement in replacements)
            {
                doc.Texts.ForEach(x=>x.Replace(replacement.Key, replacement.Value));
            }
        // Save the filled document
        //doc.Save(outputPath);
        //Console.WriteLine("Document filled and saved successfully.");
        // Create and configure text style methods
        TextStyle textStyle = new TextStyle();
        textStyle.TextEffect = new TextEffect()
        {
            GlowEffect = new Glow()
            {
                GlowColor = IronWord.Models.Color.Aqua,
                GlowRadius = 10,
            },
        };
        // Add text with style or image
        doc.AddText(" IronSoftware").Style = textStyle;
        // Export new Word document
        doc.SaveAs("glowEffect.docx");
    }
}

Imports IronWord
Imports IronWord.Models
Friend Class Program
	Shared Sub Main()
		License.LicenseKey = "your key"
		' Define the path to the template and the output file
		Dim templatePath As String = "Template.docx"
		Dim outputPath As String = "FilledDocument.docx"
		' Create a new instance of the WordDocument class
		Dim doc As New WordDocument(templatePath)
			' Define a dictionary of placeholders and their replacements
			Dim replacements = New Dictionary(Of String, String) From {
				{"{Name}", "John Doe"},
				{"{Date}", DateTime.Now.ToString("MMMM d, yyyy")},
				{"{Address}", "123 Iron Street, IronSoftware"},
				{"{product}", "IronWord"},
				{"{Sender}", "Sale,"},
				{"{phone}", "+123 456789"},
				{"{email}", "sale@ironsoftware.com"},
				{"{expiryDate}", DateTime.Now.AddYears(1).ToString("MMMM d, yyyy")}
			}
			' Replace placeholders with actual data
			For Each replacement In replacements
				doc.Texts.ForEach(Function(x) x.Replace(replacement.Key, replacement.Value))
			Next replacement
		' Save the filled document
		'doc.Save(outputPath);
		'Console.WriteLine("Document filled and saved successfully.");
		' Create and configure text style methods
		Dim textStyle As New TextStyle()
		textStyle.TextEffect = New TextEffect() With {
			.GlowEffect = New Glow() With {
				.GlowColor = IronWord.Models.Color.Aqua,
				.GlowRadius = 10
			}
		}
		' Add text with style or image
		doc.AddText(" IronSoftware").Style = textStyle
		' Export new Word document
		doc.SaveAs("glowEffect.docx")
	End Sub
End Class

Explanation

The revised code illustrates using the IronWord library to fill out a Word document template, style text, and save the modified document. Here's a concise explanation:

1. License Setup: Sets the IronWord license key to enable functionality.
2. File Paths: Specifies the paths for the template (Template.docx) and the output file (glowEffect.docx).
3. Create Document Instance: Initializes a WordDocument instance using the provided template path.
4. Define Replacements: Creates a dictionary of placeholders and their corresponding replacement values.
5. Replace Placeholders: Iterates through the dictionary, replacing placeholders in the document with actual data.
6. Configure Text Style: Defines a text style with a glow effect, specifying color and radius.
7. Add Styled Text: Adds text with the configured style to the document.
8. Save Document: Saves the updated document with a new name (glowEffect.docx), reflecting the applied text style.
9. Console Output: The previous console output statement is commented out, and the save operation has been updated to reflect the new document name.

This code demonstrates IronWord's document automation and customization features, including text replacement and styling.

Output

IronWord Licensing

IronWord. Once the data is entered, the license is delivered to the email ID provided. This license needs to be placed at the beginning of the code, before using the IronWord library, as below.

License.LicenseKey = "your Key Here"

License.LicenseKey = "your Key Here"

'INSTANT VB TODO TASK: The following line uses invalid syntax:
'License.LicenseKey = "your Key Here"

Conclusion

IronWord offers several advantages for generating Word documents using templates. It simplifies document creation automation by allowing developers to programmatically fill out templates with specific data, reducing the need for manual input. This increases efficiency and accuracy, as the risk of human error is minimized. Additionally, IronWord helps maintain consistency across documents, ensuring that each generated file adheres to the same format and structure. Automating repetitive tasks saves time and resources, making it ideal for quickly producing large volumes of documents. IronWord enhances productivity and streamlines workflows in scenarios requiring frequent or complex document generation.

By following the steps outlined in this article and leveraging the provided example with IronWord, you can efficiently manage your document generation needs and streamline your workflow.