Easily Change the Microsoft Access Edge Browser Control Background Color

Learn how to customize the background color of the Microsoft Access Edge Browser Control by using VBA to generate a local HTML file with CSS.

If you are upgrading your Microsoft Access forms to use the modern Edge Browser Control, you might be frustrated to discover that basic formatting properties are missing. Do not worry—because the new control is built on modern web standards, you can easily regain control over your design using a simple combination of VBA, HTML, and CSS.

Problem Description: Missing Access Edge Control Styling

The new Microsoft Access Edge Browser Control is a massive upgrade over the deprecated WebBrowser (Internet Explorer) control. However, it does not provide a native background-color or BackColor property in the Access Property Sheet. If you attempt to style it like a standard text box or rectangle within the form design view, the control will simply ignore your formatting, leaving you with a default white background that may clash with dark mode or custom-themed database interfaces.

Quick Answer for Customizing Edge Control Backgrounds

To change the background color, you must use VBA to dynamically create an HTML file containing your desired CSS background properties. Save this file to a temporary or known local folder, and then set the Edge Browser Control's source URL to point to that newly created local file path.

Likely Causes Behind Native Formatting Limitations

• Chromium Wrapper Architecture: The Edge Browser Control relies on the WebView2 runtime. It is essentially a separate window rendering web content over your Access form, meaning it does not inherit standard MS Access form properties.
• Web Standards Over VBA: The control expects formatting to be handled by web technologies (HTML/CSS) rather than Access-specific VBA properties.
• Security Sandboxing: Directly injecting styles without loading a structured document is restricted by the browser's security model, requiring a valid HTML source (like a local file or data URI).

Recommended Solution: Set Backgrounds via VBA and Local HTML

You can automate the creation of a styled HTML document every time your form loads. Follow these steps to implement the fix:

1. Open your Access Form in Design View: Ensure your Edge Browser Control is placed on the form and take note of its name (e.g., EdgeBrowser0).
2. Access the VBA Editor: Press ALT + F11 to open the VBA editor and navigate to the code module for your form.
3. Create the File Generation Script: Use the Form_Load event to write a string of HTML and CSS to a text file in your Windows Temp folder. Your HTML string should include the tag (replace the hex code with your preferred color).
4. Use the FileSystemObject: Utilize VBA's FileSystemObject to create and save the .html file locally (e.g., C:\Temp\edge_bg.html).
5. Set the Control Source: Finally, instruct the Edge Browser Control to navigate to this file by setting its property: Me.EdgeBrowser0.Object.Navigate "file:///C:/Temp/edge_bg.html".

Alternative Solutions for Dynamic HTML Rendering

If you prefer not to save temporary files to the user's hard drive, you can use a Data URI to inject the HTML directly into the browser control:

1. Construct a Data URI String: In VBA, format your HTML as a URL-encoded string. For example: "data:text/html;charset=utf-8,".
2. Navigate to the URI: Pass this string directly to the control's navigate method: Me.EdgeBrowser0.Object.Navigate myDataUriString.
3. Note: Data URIs are excellent for simple background colors, but can become difficult to manage in VBA if you are passing complex layouts, large base64 images, or heavy CSS.

Working with WPS Office: Access Alternatives and Compatibility

While Microsoft Access is used for complex desktop database development, it is worth noting that WPS Office does not include a direct relational database equivalent to MS Access. Therefore, WPS Office cannot directly resolve database-specific VBA or Edge WebView2 issues.

However, if your goal is simply to generate, manage, or share data reports, WPS Office serves as an excellent, lightweight alternative. WPS Spreadsheet is highly compatible with exported Access data (CSV/XLSX), allowing you to format, style, and visualize your data beautifully without needing to write custom HTML/CSS wrappers. WPS Office is highly recommended as a fast, free alternative for standard document, presentation, and spreadsheet workflows.

Prevention Tips for Local HTML File Management

• Manage Temp Files: If your VBA script generates a new HTML file every time a record loads, ensure your code overwrites the same file or deletes old ones to prevent cluttering the user's temporary folder.
• Use Relative Paths for Images: If your HTML includes an image element over the custom background, ensure the image paths are either base64 encoded or rely on absolute local paths (e.g., file:///C:/...) so the Edge control can find them.
• Wait for Initialization: The Edge Browser Control requires a moment to initialize. Ensure you do not call the Navigate method before the control is fully ready, or use the OnNavigationCompleted event to trigger secondary actions.

FAQs About Access Edge Browser Customization

Can I make the Edge Browser Control background transparent?

No, the WebView2/Edge Browser Control does not natively support true transparency over Microsoft Access forms. The best workaround is to set the HTML background color to exactly match the hex code of your Access form's background color so it blends seamlessly.

How do I resize an image inside the Edge control?

Because you are generating a local HTML file, you can control image sizes using standard CSS. In the HTML string you create via VBA, apply styles like max-width: 100%; height: auto; object-fit: contain; to your tags to ensure they fit perfectly within the control boundaries.

Will this HTML workaround work offline?

Yes. Because the VBA script generates a local .html file on the user's hard drive and navigates to a local file:/// path, no internet connection is required to render the custom background color or local images.