Implementing PropertyGrid

Guide for implementing Syncfusion® WPF PropertyGrid control — a powerful property inspector for browsing and editing object properties with support for custom editors, category editors, collection editing, grouping, sorting, filtering, and nested properties.

When to Use This Skill

Use this skill when you need to:

• Display object properties for browsing and editing
• Create property inspectors similar to Visual Studio's Properties window
• Implement custom value editors for specific property types
• Group and categorize properties for better organization
• Edit collection properties with add/remove/edit capabilities
• Filter and search properties dynamically
• Support nested properties with expandable property items
• Customize property display with descriptions, display names, and tooltips
• Implement design-time editors for visual configuration tools
• Build configuration panels for application settings

This skill covers the complete PropertyGrid implementation including basic setup, property binding, editors, organization, and advanced customization.

Component Overview

Required assemblies:

• Syncfusion.PropertyGrid.WPF
• Syncfusion.SfInput.WPF
• Syncfusion.SfShared.WPF
• Syncfusion.Shared.WPF
• Syncfusion.Tools.WPF

XAML namespace:

xmlns:syncfusion="http://schemas.syncfusion.com/wpf"

The PropertyGrid control provides an interface for browsing and editing properties of any object with:

• Automatic Property Discovery - Reflects properties from any object automatically
• Custom Value Editors - Assign custom controls for editing specific properties
• Category Editors - Group related properties with custom editing UI
• Collection Editor - Built-in dialog for editing collection properties (List, ObservableCollection)
• Grouping & Sorting - Organize properties by category with multiple sort options
• Filtering - Hide properties and search with built-in SearchBox
• Nested Properties - Expand complex objects to show nested properties
• Blendability - Design-time support in Blend and Visual Studio
• Theming - Built-in theme support for consistent styling
• MVVM Support - Full data binding and property change notification

Control Structure

PropertyGrid
├── SearchBox (optional) - Filter properties by name
├── Sort/Group Buttons - Toggle between sorted and categorized views
├── Property List
│   ├── Property Name Column
│   └── Value Editor Column (context-sensitive editors)
└── Description Panel (optional) - Shows property description

Documentation and Navigation Guide

Getting Started

📄 Read: references/getting-started.md

• Installation and assembly deployment
• Adding PropertyGrid via designer, XAML, and C#
• Binding with SelectedObject
• Populating properties automatically
• Basic configuration and setup
• Theme support

📄 Read: references/overview.md

• Control structure and architecture
• Feature overview and capabilities
• Use cases and scenarios
• When to use PropertyGrid

📄 Read: references/property-binding.md

• SelectedObject binding
• Data context configuration
• INotifyPropertyChanged implementation
• ObservableCollection usage
• Dynamic property updates
• Binding multiple objects

Editors and Customization

📄 Read: references/custom-editors.md

• Creating custom editors (ITypeEditor interface)
• Assigning editors via Editor attribute
• CustomEditorCollection usage
• Assigning by property name vs property type
• EditorType vs Editor property
• Constructor with parameters
• Attach/Create/Detach methods
• Custom editor controls

📄 Read: references/category-editors.md

• CategoryEditor concept
• Grouping related properties
• EditorTemplate customization
• Multiple property categorization
• Visibility converters
• Custom category layouts

📄 Read: references/collection-editor.md

• Editing collection properties (List, ObservableCollection)
• Add/remove items dialog
• Editing collection as SelectedObject
• Nested collection editing
• Readonly mode configuration
• CollectionEditorOpening event
• IList type requirements

📄 Read: references/custom-property-definition.md

• Manual PropertyItem definition
• PropertyGridItem configuration
• AutoGenerateItems property
• Add/remove items at runtime
• Custom DisplayName, Description, CategoryName
• Custom editors and nested properties
• Description panel templates

Organization Features

📄 Read: references/grouping.md

• EnableGrouping property
• Grouping by Category attribute
• Group appearance customization
• Expand/collapse behavior
• Group button visibility

📄 Read: references/sorting.md

• SortDirection property (Ascending, Descending, Null)
• Sorting properties by name
• Sorting categories
• Order attribute for custom ordering
• ButtonPanelVisibility for sort buttons
• Disabling sort

📄 Read: references/filtering.md

• HidePropertiesCollection for hiding properties
• Browsable attribute (hide with false)
• Bindable attribute (hide with false)
• Display.AutoGenerateField attribute
• AutoGeneratingPropertyGridItem event
• SearchBox for filtering by name
• SearchBoxVisibility property

📄 Read: references/nested-properties.md

• PropertyExpandMode (FlatMode vs NestedMode)
• NestedPropertyDisplayMode property
• Expanding complex object properties
• Update value on lost focus
• Manual nested property definition

Appearance and Behavior

📄 Read: references/appearance.md

• Visual styling and themes
• Property name/value appearance
• Description panel customization
• DescriptionPanelVisibility property
• Grid lines and spacing
• Color customization

📄 Read: references/attached-properties.md

• Using WPF attached properties
• PropertyGrid-specific attached properties
• Configuration examples

📄 Read: references/keyboard-navigation.md

• Keyboard shortcuts
• Tab navigation between properties
• Enter/Escape behavior
• Focus management

📄 Read: references/localization.md

• Localization support
• Resource file configuration
• Culture-specific strings
• Customizing built-in text

📄 Read: references/virtualization.md

• VirtualizingMode property
• Performance optimization for large property sets
• Memory management
• Scrolling behavior

Quick Start Example

Basic PropertyGrid Setup

<Window x:Class="PropertyGridSample.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:syncfusion="http://schemas.syncfusion.com/wpf">
    <Grid>
        <syncfusion:PropertyGrid Name="propertyGrid1" 
                                 SelectedObject="{Binding SelectedEmployee}"
                                 Width="400" Height="500">
            <syncfusion:PropertyGrid.DataContext>
                <local:ViewModel/>
            </syncfusion:PropertyGrid.DataContext>
        </syncfusion:PropertyGrid>
    </Grid>
</Window>

// Employee class to be explored in PropertyGrid
public class Employee : INotifyPropertyChanged
{
    private string name;
    public string Name 
    { 
        get => name; 
        set { name = value; OnPropertyChanged(nameof(Name)); } 
    }
    
    [Display(Name = "Employee ID")]
    [Description("Unique identifier for the employee")]
    public string ID { get; set; }
    
    [Category("Personal Info")]
    [DisplayName("Date of Birth")]
    public DateTime DOB { get; set; }
    
    [Category("Personal Info")]
    [Range(18, 65)]
    public int Age { get; set; }
    
    [Browsable(false)] // Hide this property
    public string InternalCode { get; set; }
    
    public event PropertyChangedEventHandler PropertyChanged;
    protected void OnPropertyChanged(string propertyName) =>
        PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}

// ViewModel
public class ViewModel
{
    public object SelectedEmployee { get; set; }
    
    public ViewModel()
    {
        SelectedEmployee = new Employee
        {
            Name = "Johnson",
            Age = 25,
            ID = "EMP001",
            DOB = new DateTime(1999, 5, 15)
        };
    }
}

Common Patterns

Pattern 1: Custom Editor for Email Property

// Custom Editor with email validation mask
public class EmailEditor : ITypeEditor
{
    SfMaskedEdit maskedEdit;
    
    public object Create(PropertyInfo propertyInfo)
    {
        maskedEdit = new SfMaskedEdit
        {
            MaskType = MaskType.RegEx,
            Mask = "[A-Za-z0-9._%-]+@[A-Za-z0-9]+.[A-Za-z]{2,3}"
        };
        return maskedEdit;
    }
    
    public void Attach(PropertyViewItem property, PropertyItem info)
    {
        var binding = new Binding("Value")
        {
            Mode = BindingMode.TwoWay,
            Source = info,
            ValidatesOnExceptions = true,
            ValidatesOnDataErrors = true
        };
        BindingOperations.SetBinding(maskedEdit, SfMaskedEdit.ValueProperty, binding);
    }
    
    public void Detach(PropertyViewItem property) { }
}

// Apply to property
public class Employee
{
    [Editor("EmailID", typeof(EmailEditor))]
    public string EmailID { get; set; }
}

Pattern 2: Grouping Properties by Category

public class Employee
{
    [Category("Basic Info")]
    public string Name { get; set; }
    
    [Category("Basic Info")]
    public string ID { get; set; }
    
    [Category("Contact Details")]
    public string Email { get; set; }
    
    [Category("Contact Details")]
    public string Phone { get; set; }
}

<syncfusion:PropertyGrid SelectedObject="{Binding Employee}"
                         EnableGrouping="True"/>

Pattern 3: Editing Collection Properties

public class Product
{
    public string ProductName { get; set; }
    
    // Collection property - automatically gets collection editor
    public ObservableCollection<Customer> Customers { get; set; }
    
    public Product()
    {
        Customers = new ObservableCollection<Customer>
        {
            new Customer { ID = 1, Name = "John" },
            new Customer { ID = 2, Name = "Jane" }
        };
    }
}

public class Customer
{
    public int ID { get; set; }
    public string Name { get; set; }
}

Pattern 4: Override Property Items at Runtime

private void PropertyGrid_AutoGeneratingPropertyGridItem(
    object sender, AutoGeneratingPropertyGridItemEventArgs e)
{
    // Hide specific properties
    if (e.DisplayName == "InternalCode")
    {
        e.Cancel = true;
    }
    
    // Make property readonly
    if (e.DisplayName == "ID")
    {
        e.ReadOnly = true;
    }
    
    // Change display name
    if (e.DisplayName == "DOB")
    {
        e.DisplayName = "Date of Birth";
    }
    
    // Change category
    if (e.DisplayName == "Age")
    {
        e.Category = "Personal Information";
    }
}

Pattern 5: Property Value Changed Notification

private void PropertyGrid_ValueChanged(object sender, ValueChangedEventArgs e)
{
    var changedProperty = e.Property;
    var oldValue = e.OldValue;
    var newValue = e.NewValue;
    
    // Log the change
    Console.WriteLine($"{changedProperty.Name} changed from {oldValue} to {newValue}");
    
    // React to specific property changes
    if (changedProperty.Name == "Age")
    {
        // Validate or update related properties
    }
}

Key Properties

Core Properties

Property	Type	Description
SelectedObject	object	The object whose properties are displayed
SelectedObjects	object[]	Multiple objects for common property editing
EnableGrouping	bool	Groups properties by category
SortDirection	ListSortDirection?	Sorts properties (Ascending, Descending, null)
PropertyExpandMode	PropertyExpandModes	FlatMode or NestedMode for complex objects
AutoGenerateItems	bool	Auto-generates property items (default: true)

UI Configuration

Property	Type	Description
SearchBoxVisibility	Visibility	Shows/hides the search box
ButtonPanelVisibility	Visibility	Shows/hides sort/group buttons
DescriptionPanelVisibility	Visibility	Shows/hides description panel
EnableToolTip	bool	Enables tooltips on property items
DisableAnimationOnObjectSelection	bool	Disables loading animation

Collections

Property	Type	Description
HidePropertiesCollection	ObservableCollection	Property names to hide
CustomEditorCollection	CustomEditorCollection	Custom editors for properties
Items	PropertyGridItemCollection	Manually defined property items

Events

Event	Description
AutoGeneratingPropertyGridItem	Fired when a property item is being created (can cancel or modify)
ValueChanged	Fired when a property value changes
SelectedPropertyItemChanged	Fired when the selected property changes
CollectionEditorOpening	Fired before collection editor opens (can cancel or set readonly)

Common Use Cases

1. Application Settings Editor

Display and edit application configuration with grouped categories (Appearance, Behavior, Performance).

2. Design-Time Property Inspector

Create visual designers for custom controls or components with property editing.

3. Object Inspector in Development Tools

Build debugging or inspection tools to view and modify object properties at runtime.

4. Dynamic Configuration Panels

Generate configuration UI automatically from data model classes without manual form design.

5. Data Entry Forms with Complex Objects

Display nested object properties with collections, allowing users to edit hierarchical data.

6. Report Parameter Configuration

Allow users to configure report parameters with appropriate editors for each data type.

7. Game/Application Asset Editor

Edit properties of game objects, scenes, or assets with custom editors for vectors, colors, resources.

8. Business Rule Configuration

Define and edit business rules with property-based configuration and validation.

Related Components

• PropertyGridItem - Individual property item representation
• CustomEditor - Custom value editor configuration
• CategoryEditor - Category-based property grouping
• Collection Editor - Built-in collection editing dialog

Best Practices

1. Use Attributes for Metadata

   • Apply [Category], [Description], [DisplayName] attributes to properties
   • Use [Browsable(false)] to hide properties instead of code-based filtering

2. Implement INotifyPropertyChanged

   • Ensure your data objects implement property change notification
   • Use ObservableCollection for collection properties

3. Custom Editors for Complex Types

   • Create custom editors for types that don't have suitable default editors
   • Consider user experience when designing custom editor UI

4. Performance with Large Objects

   • Use virtualization for objects with many properties
   • Consider lazy loading for nested properties
   • Filter unnecessary properties early

5. Validation

   • Use data annotations for validation ([Required], [Range], etc.)
   • Handle validation errors gracefully in custom editors

6. Accessibility

   • Ensure custom editors support keyboard navigation
   • Provide meaningful descriptions for screen readers
   • Test with high contrast themes

Troubleshooting

Properties Not Showing

• Verify [Browsable] attribute is not false
• Check if property is in HidePropertiesCollection
• Ensure property has public getter
• Verify AutoGenerateItems is true

Custom Editor Not Applied

• Check editor is properly registered in CustomEditorCollection
• Verify property name/type matches
• Ensure editor implements ITypeEditor correctly
• Check Create method returns valid control

Collection Editor Not Opening

• Verify collection type derives from IList
• Ensure collection property has setter
• Check collection type has parameterless constructor
• Verify CollectionEditorOpening event doesn't cancel

Performance Issues

• Enable virtualization for large property sets
• Reduce nested property depth
• Filter unnecessary properties
• Consider manual property definition instead of auto-generation

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Next Steps: Navigate to specific reference documents above based on your implementation needs. Start with getting-started.md for initial setup, then explore editors and organization features as needed.