agentic-net-examples / working-with-headers-and-footers

---
category: working-with-headers-and-footers
display_name: Working With Headers And Footers
language: csharp
framework: net8.0
package: Aspose.Diagram
version: 26.9.0
examples: 30
pass_rate: 100.0
generated: 2026-09-24
parent: https://github.com/aspose-diagram/agentic-net-examples/blob/main/agents.md
---

# Working With Headers And Footers

> AI-generated, compiler-validated C# examples for the [Aspose.Diagram for .NET](https://products.aspose.com/diagram/net/) API — **Working With Headers And Footers** category.

## Statistics

| Metric | Value |
|--------|-------|
| Examples | 30 |
| Pass Rate | 100.0% |
| Aspose.Diagram Version | 26.9.0 |
| Target Framework | net8.0 |
| Last Updated | 2026-09-24 |

## Persona

You are a C# developer specializing in Visio diagram processing using Aspose.Diagram for .NET. You are working in the **Working With Headers And Footers** category.
Your task is to write clean, compilable C# console examples that demonstrate Aspose.Diagram API usage for working with headers and footers operations.
You always use explicit types (never `var`), include all required `using` directives, and follow the patterns established in this category.

## Boundaries

### Always

- Use explicit types — `Diagram diagram = new Diagram(...)` not `var diagram = ...`
- Include `using Aspose.Diagram;` and `using Aspose.Diagram.Saving;` in every file
- Use `SaveFileFormat` enum in PascalCase: `SaveFileFormat.Vsdx`, `SaveFileFormat.Pdf`
- Use `BOOL.True` / `BOOL.False` for Aspose BOOL properties — never plain `true`/`false`
- Wrap entry point in `static void Main()` inside `class Program`
- Handle `FileNotFoundException` with try/catch when loading files

### Ask First

- Multi-file projects or solutions
- External dependencies beyond Aspose.Diagram and Aspose.Drawing
- Platform-specific code (Windows Forms, WPF, ASP.NET)

### Never

- Use `var` for any variable declaration
- Use `using (Diagram diagram = ...)` — Diagram does not implement IDisposable
- Use `SaveFileFormat.VSDX` or other ALL_CAPS enum values
- Use `System.Windows.Forms` — not available in net8.0 console project
- Use NUnit `Assert` — not available, use `Console.WriteLine` and manual checks
- Use PowerShell syntax inside C# files

## Required Namespaces

| Namespace | Files | Purpose |
|-----------|-------|---------|
| `Aspose.Diagram` | 30 | Core diagram API |
| `System` | 30 | Console, Math, DateTime, Exception |
| `System.IO` | 29 | File, Stream, Path, Directory operations |
| `Aspose.Diagram.Saving` | 10 | Save options (PDF, PNG, HTML, SVG, XPS) |
| `Aspose.Drawing` | 5 | Supporting utilities |
| `System.Xml.Linq` | 1 | Supporting utilities |
| `System.Text.Json` | 1 | JSON serialization |
| `System.Linq` | 1 | LINQ queries on collections |
| `System.Globalization` | 1 | Supporting utilities |
| `System.Text.RegularExpressions` | 1 | Supporting utilities |

## Common Code Pattern

The dominant workflow in this category is: **Load → Modify → Save**

```csharp
using System;
using Aspose.Diagram;
using Aspose.Diagram.Saving;

class Program
{
    static void Main()
    {
        // 1. Load or create diagram
        Diagram diagram = new Diagram("input.vsdx");

        // 2. Perform category-specific operations
        // ...

        // 3. Save result
        diagram.Save("output.vsdx", SaveFileFormat.Vsdx);
    }
}
```

## Examples

| File | Key APIs | Task |
|------|----------|------|
| [adjust-the-footer-margin-dynamically-based-on-the-number-of-shapes-on-the-page-to-avoid-overlap.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/adjust-the-footer-margin-dynamically-based-on-the-number-of-shapes-on-the-page-to-avoid-overlap.cs) | `Diagram`, `Pages`, `Save` | Adjust the footer margin dynamically based on the number of shapes on the page to avoid overlap |
| [apply-a-uniform-header-margin-of-0-25-inches-to-all-diagrams-in-a-batch-and-log-failures.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/apply-a-uniform-header-margin-of-0-25-inches-to-all-diagrams-in-a-batch-and-log-failures.cs) | `Diagram`, `Save`, `diagram` | Apply a uniform header margin of 0 25 inches to all diagrams in a batch and log failures |
| [apply-identical-header-and-footer-font-settings-across-all-diagrams-in-a-specified-folder-using-batch-processing.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/apply-identical-header-and-footer-font-settings-across-all-diagrams-in-a-specified-folder-using-batch-processing.cs) | `Diagram`, `Save`, `diagram` | Apply identical header and footer font settings across all diagrams in a specified folder using batch processing |
| [apply-italic-style-to-the-right-footer-text-only-when-the-document-contains-more-than-ten-pages.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/apply-italic-style-to-the-right-footer-text-only-when-the-document-contains-more-than-ten-pages.cs) | `Diagram`, `Pages`, `Save` | Apply italic style to the right footer text only when the document contains more than ten pages |
| [assign-a-new-string-to-the-right-footer-text-and-save-the-diagram-as-a-vdx-file.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/assign-a-new-string-to-the-right-footer-text-and-save-the-diagram-as-a-vdx-file.cs) | `Diagram`, `Save`, `diagram` | Assign a new string to the right footer text and save the diagram as a vdx file |
| [automate-the-process-of-adding-a-page-number-placeholder-to-the-right-footer-of-each-diagram-in-a-collection.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/automate-the-process-of-adding-a-page-number-placeholder-to-the-right-footer-of-each-diagram-in-a-collection.cs) | `Diagram`, `Save`, `diagram` | Automate the process of adding a page number placeholder to the right footer of each diagram in a collection |
| [compare-left-header-text-between-two-diagrams-and-output-the-differences-to-a-log-file.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/compare-left-header-text-between-two-diagrams-and-output-the-differences-to-a-log-file.cs) | `Diagram` | Compare left header text between two diagrams and output the differences to a log file |
| [configure-the-footer-margin-to-0-3-centimeters-and-verify-the-change-using-print-preview.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/configure-the-footer-margin-to-0-3-centimeters-and-verify-the-change-using-print-preview.cs) | `Diagram`, `ImageSaveOptions`, `Save` | Configure the footer margin to 0 3 centimeters and verify the change using print preview |
| [create-a-command-line-tool-that-accepts-a-directory-path-and-applies-a-predefined-header-footer-template-to-all-visio-fi.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/create-a-command-line-tool-that-accepts-a-directory-path-and-applies-a-predefined-header-footer-template-to-all-visio-fi.cs) | `Diagram`, `Save`, `diagram` | Create a command line tool that accepts a directory path and applies a predefined header footer template to all visio fi |
| [create-a-script-that-reads-header-and-footer-configurations-from-an-xml-file-and-applies-them-to-a-diagram.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/create-a-script-that-reads-header-and-footer-configurations-from-an-xml-file-and-applies-them-to-a-diagram.cs) | `Diagram`, `Save`, `diagram` | Create a script that reads header and footer configurations from an xml file and applies them to a diagram |
| [create-a-utility-method-that-accepts-a-diagram-path-and-header-settings-applies-them-and-saves-the-file.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/create-a-utility-method-that-accepts-a-diagram-path-and-header-settings-applies-them-and-saves-the-file.cs) | `Diagram`, `Save`, `diagram` | Create a utility method that accepts a diagram path and header settings applies them and saves the file |
| [define-header-font-name-as-arial-size-10-points-and-apply-bold-style-to-the-left-header.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/define-header-font-name-as-arial-size-10-points-and-apply-bold-style-to-the-left-header.cs) | `Diagram`, `Save`, `diagram` | Define header font name as arial size 10 points and apply bold style to the left header |
| [ensure-that-after-modifying-header-text-the-diagram-s-print-preview-reflects-the-updated-content-accurately.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/ensure-that-after-modifying-header-text-the-diagram-s-print-preview-reflects-the-updated-content-accurately.cs) | `Diagram`, `Save`, `diagram` | Ensure that after modifying header text the diagram s print preview reflects the updated content accurately |
| [extract-current-header-and-footer-text-values-from-a-diagram-and-write-them-to-a-json-configuration-file.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/extract-current-header-and-footer-text-values-from-a-diagram-and-write-them-to-a-json-configuration-file.cs) | `Diagram` | Extract current header and footer text values from a diagram and write them to a json configuration file |
| [generate-a-report-listing-each-diagram-s-left-center-and-right-header-texts-after-batch-modifications.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/generate-a-report-listing-each-diagram-s-left-center-and-right-header-texts-after-batch-modifications.cs) | `Diagram`, `Save`, `diagram` | Generate a report listing each diagram s left center and right header texts after batch modifications |
| [generate-a-summary-csv-file-listing-each-diagram-s-file-name-header-margins-and-footer-font-sizes-after-processing.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/generate-a-summary-csv-file-listing-each-diagram-s-file-name-header-margins-and-footer-font-sizes-after-processing.cs) | `Diagram` | Generate a summary csv file listing each diagram s file name header margins and footer font sizes after processing |
| [implement-a-function-to-copy-header-and-footer-settings-from-one-diagram-to-another-without-altering-page-content.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/implement-a-function-to-copy-header-and-footer-settings-from-one-diagram-to-another-without-altering-page-content.cs) | `Diagram` | Implement a function to copy header and footer settings from one diagram to another without altering page content |
| [load-a-diagram-clear-all-existing-footer-texts-then-assign-a-standardized-disclaimer-to-each-footer-region.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/load-a-diagram-clear-all-existing-footer-texts-then-assign-a-standardized-disclaimer-to-each-footer-region.cs) | `Diagram`, `Save`, `diagram` | Load a diagram clear all existing footer texts then assign a standardized disclaimer to each footer region |
| [load-a-visio-file-into-a-diagram-object-and-retrieve-the-left-header-text-value.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/load-a-visio-file-into-a-diagram-object-and-retrieve-the-left-header-text-value.cs) | `Diagram` | Load a visio file into a diagram object and retrieve the left header text value |
| [load-multiple-visio-files-set-left-header-text-to-document-title-and-save-each-file-with-updated-headers.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/load-multiple-visio-files-set-left-header-text-to-document-title-and-save-each-file-with-updated-headers.cs) | `Diagram`, `Save`, `diagram` | Load multiple visio files set left header text to document title and save each file with updated headers |
| [read-the-center-header-text-replace-any-occurrence-of-the-word-draft-with-final-and-save-changes.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/read-the-center-header-text-replace-any-occurrence-of-the-word-draft-with-final-and-save-changes.cs) | `Diagram`, `Save`, `diagram` | Read the center header text replace any occurrence of the word draft with final and save changes |
| [retrieve-current-footer-margin-value-from-a-diagram-and-log-it-to-the-console-for-debugging.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/retrieve-current-footer-margin-value-from-a-diagram-and-log-it-to-the-console-for-debugging.cs) | `Diagram` | Retrieve current footer margin value from a diagram and log it to the console for debugging |
| [retrieve-the-current-header-font-style-change-it-to-italic-and-verify-the-change-by-reading-back-the-property.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/retrieve-the-current-header-font-style-change-it-to-italic-and-verify-the-change-by-reading-back-the-property.cs) | `Diagram`, `Save`, `diagram` | Retrieve the current header font style change it to italic and verify the change by reading back the property |
| [set-footer-font-to-times-new-roman-size-9-points-italic-style-for-the-center-footer-text.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/set-footer-font-to-times-new-roman-size-9-points-italic-style-for-the-center-footer-text.cs) | `Diagram`, `Save`, `diagram` | Set footer font to times new roman size 9 points italic style for the center footer text |
| [set-header-font-style-to-bold-and-underline-for-the-center-header-preserving-existing-font-name-and-size.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/set-header-font-style-to-bold-and-underline-for-the-center-header-preserving-existing-font-name-and-size.cs) | `Diagram`, `Save`, `diagram` | Set header font style to bold and underline for the center header preserving existing font name and size |
| [set-header-margin-based-on-page-size-0-2-inches-for-a4-and-0-3-inches-for-letter-formats.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/set-header-margin-based-on-page-size-0-2-inches-for-a4-and-0-3-inches-for-letter-formats.cs) | `Diagram`, `Pages`, `Save` | Set header margin based on page size 0 2 inches for a4 and 0 3 inches for letter formats |
| [set-the-header-margin-to-0-5-inches-for-a-diagram-before-exporting-to-pdf-format.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/set-the-header-margin-to-0-5-inches-for-a-diagram-before-exporting-to-pdf-format.cs) | `Diagram`, `PdfSaveOptions`, `Save` | Set the header margin to 0 5 inches for a diagram before exporting to pdf format |
| [update-the-center-header-text-of-a-loaded-diagram-with-a-custom-company-name-string.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/update-the-center-header-text-of-a-loaded-diagram-with-a-custom-company-name-string.cs) | `Diagram`, `Save`, `diagram` | Update the center header text of a loaded diagram with a custom company name string |
| [use-conditional-logic-to-set-different-footer-fonts-for-diagrams-based-on-their-file-extensions-vsdx-vs-vdx.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/use-conditional-logic-to-set-different-footer-fonts-for-diagrams-based-on-their-file-extensions-vsdx-vs-vdx.cs) | `Diagram`, `Save`, `diagram` | Use conditional logic to set different footer fonts for diagrams based on their file extensions vsdx vs vdx |
| [validate-that-the-right-footer-text-matches-a-predefined-pattern-after-modification-and-raise-an-exception-if-not.cs](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-headers-and-footers/validate-that-the-right-footer-text-matches-a-predefined-pattern-after-modification-and-raise-an-exception-if-not.cs) | `Diagram`, `Save`, `diagram` | Validate that the right footer text matches a predefined pattern after modification and raise an exception if not |

## Command Reference

```bash
# Build the warmup project
cd compiler/CSharpRunner/_warmup
dotnet build

# Run a specific example (copy .cs content to Program.cs first)
dotnet run

# Build with verbose output
dotnet build --verbosity detailed
```

### .csproj Template

```xml
<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <TargetFramework>net8.0</TargetFramework>
    <Nullable>enable</Nullable>
    <ImplicitUsings>disable</ImplicitUsings>
    <NoWarn>MSB3277</NoWarn>
  </PropertyGroup>
  <ItemGroup>
    <Reference Include="Aspose.Diagram">
      <HintPath>..\..\libs\Aspose.Diagram.dll</HintPath>
    </Reference>
  </ItemGroup>
</Project>
```

## Testing Guide

### Build Verification

```bash
dotnet build  # Must exit with rc=0, zero compiler errors
```

### Run Verification

```bash
dotnet run    # rc=0 = pass, rc!=0 with unhandled exception = fail
```

### Expected Output Patterns

| Pattern | Meaning |
|---------|---------|
| `rc=0` | ✅ Pass — example compiled and ran successfully |
| `rc=1` compiler errors | ❌ Fail — CS error codes indicate API misuse |
| `rc!=0` runtime | ⚠️ Check — may be acceptable (missing input file) |
| TIMEOUT | ✅ Pass — Console.ReadLine() treated as successful completion |

### Common CS Error Codes

| Code | Meaning | Fix |
|------|---------|-----|
| CS1061 | Member does not exist | Check correct property/method name |
| CS0200 | Property is read-only | Access via .Value instead of assignment |
| CS0029 | Cannot convert type | Use correct enum type (BOOL not bool) |
| CS0117 | Name does not exist in type | Check enum member name casing |
| CS0234 | Namespace not found | Add correct using directive |

## Pipeline

| Attempt | Strategy | Trigger |
|---------|----------|---------|
| 1 | MCP direct retrieval + code assembly | Always |
| 2 | MCP retrieval with injected rules | Attempt 1 fails |
| 3 | LLM repair with compiler errors + rules | Attempt 2 fails |

Only examples that pass both `dotnet build` and `dotnet run` are committed.

## General Tips

- See [root agents.md](https://github.com/aspose-diagram/agentic-net-examples/blob/main/agents.md) for repository-wide boundaries, anti-patterns, domain knowledge, and testing guidelines
- Always check `rules/rules.json` for the latest API correction rules
- SaveFileFormat enum must always be PascalCase: `Vsdx`, `Pdf`, `Png`, `Jpeg`, `Svg`, `Html` — never ALL_CAPS
- Diagram class does NOT implement IDisposable — never use `using (Diagram ...)`

## Key API Surface

- `Diagram`
- `ImageSaveOptions`
- `Pages`
- `PdfSaveOptions`
- `Save`
- `Shapes`
- `diagram`
- `page`

## Real-World Use Cases

Common scenarios where **Aspose.Diagram for .NET** working with headers and footers capabilities are applied in production applications:

- Adding page numbers and dates to printed Visio diagrams
- Inserting corporate headers with logo paths into report diagrams
- Standardizing header/footer content across all pages in a document

## Developer Q&A

Frequently asked questions about **Working With Headers And Footers** in **Aspose.Diagram for .NET**:

**Q: How do I get started with Working With Headers And Footers in Aspose.Diagram for .NET?**

A: Add a reference to `Aspose.Diagram.dll` (v26.9.0), include `using Aspose.Diagram;` and `using Aspose.Diagram.Saving;`, then use `Diagram diagram = new Diagram("input.vsdx");` to load a file. All examples in this category target `net8.0`.

**Q: Why do I get CS1674 when using `using (Diagram diagram = ...)`?**

A: `Diagram` does not implement `IDisposable` in Aspose.Diagram for .NET. Remove the `using` statement and declare the variable normally: `Diagram diagram = new Diagram("input.vsdx");`

**Q: Why does my code fail with CS0117 on `SaveFileFormat.VSDX`?**

A: `SaveFileFormat` enum members use PascalCase in Aspose.Diagram for .NET. Use `SaveFileFormat.Vsdx` (not `VSDX`). The same applies to all formats: `SaveFileFormat.Pdf`, `SaveFileFormat.Png`, `SaveFileFormat.Svg`.

**Q: Why do I get CS0029 when assigning `true` to a BOOL property?**

A: Aspose.Diagram uses its own `BOOL` enumeration type, not C# `bool`. Use `BOOL.True` and `BOOL.False` instead of plain `true`/`false` for all Aspose.Diagram BOOL properties.

## Related Categories

- [Page Setup Features](https://github.com/aspose-diagram/agentic-net-examples/tree/main/page-setup-features) — page size, margins, and orientation
- [Working With Pages](https://github.com/aspose-diagram/agentic-net-examples/tree/main/working-with-pages) — page management and navigation
- [Document Properties](https://github.com/aspose-diagram/agentic-net-examples/tree/main/document-properties) — document metadata and properties

## Category Statistics

- Total examples: 30
- Failed: 0
- Pass rate: 100.0%

## Failed Tasks

All tasks passed ✅

---

Updated: 2026-09-24 | Examples: 30 | Pass Rate: 100.0% | [↑ Root agents.md](https://github.com/aspose-diagram/agentic-net-examples/blob/main/agents.md) | [Aspose.Diagram for .NET](https://products.aspose.com/diagram/net/)