Guidelines for zero-border tables

    Keep an invisible-border table easy to edit without adding an authoring outline to saved HTML. Guidelines are a Design presentation aid.

    The table structure and its authored border styles remain part of the document.

    Actual rectangular table selection in the Avalonia document editor.
    Actual rectangular table selection in the Avalonia document editor.

    Use it in your application

    Enable guidelines for layout tables whose borders are zero. Configure the guideline style through the supported safe outline setting.

    Inspect the exported HTML when a table must remain borderless. Guidelines are not the same as table border properties.

    Use the table dialog or table authoring service to change actual cell or table styling.

    editor.Options.ShowZeroBorderGuideline = true;
    editor.Options.ZeroBorderTableGuidelineCss = "border: 1px dashed #64748b";
    string savedHtml = await editor.GetBodyHtmlAsync();

    Continue with

    Last updated on Oct 18, 2026

    Put this into practice.

    Start with the C# Avalonia sample. Restore this edition's package and install the native browser prerequisites before running it.

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