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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
// Description: StyleSelector allows the app writer to provide custom style selection logic.
//
// Specs: Data Styling.mht
//
using System.Windows.Shapes;
using System.Windows.Media;
using System.Windows.Data;
using System.ComponentModel;
using System;
namespace System.Windows.Controls
{
/// <summary>
/// <p>
/// StyleSelector allows the app writer to provide custom style selection logic.
/// For example, with a class Bug as the Content,
/// use a particular style for Pri1 bugs and a different style for Pri2 bugs.
/// </p>
/// <p>
/// An application writer can override the SelectStyle method in a derived
/// selector class and assign an instance of this class to the StyleSelector property on
/// <seealso cref="ContentPresenter"/> class.
/// </p>
/// </summary>
public class StyleSelector
{
/// <summary>
/// Override this method to return an app specific <seealso cref="Style"/>.
/// </summary>
/// <param name="item">The data content</param>
/// <param name="container">The element to which the style will be applied</param>
/// <returns>an app-specific style to apply, or null.</returns>
public virtual Style SelectStyle(object item, DependencyObject container)
{
return null;
}
}
}
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