Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System/compmod/system/componentmodel/design/ISelectionService.cs

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+//------------------------------------------------------------------------------
+// <copyright file="ISelectionService.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+/*
+ */
+namespace System.ComponentModel.Design {
+    using System.Diagnostics;
+    using System;
+    using System.Collections;
+    using System.ComponentModel;
+    using Microsoft.Win32;
+
+    /// <devdoc>
+    ///    <para>
+    ///       Provides an interface for a designer to select components.
+    ///    </para>
+    /// </devdoc>
+    [System.Runtime.InteropServices.ComVisible(true)]
+    public interface ISelectionService {
+
+        /// <devdoc>
+        ///    <para>
+        ///       Gets the object that is currently the primary selection.
+        ///    </para>
+        /// </devdoc>
+        object PrimarySelection { get; }
+        
+        /// <devdoc>
+        ///    <para>
+        ///       Gets the count of selected objects.
+        ///    </para>
+        /// </devdoc>
+        int SelectionCount { get; }
+
+        /// <devdoc>
+        ///    <para>
+        ///       Adds a <see cref='System.ComponentModel.Design.ISelectionService.SelectionChanged'/> event handler to the selection service.
+        ///    </para>
+        /// </devdoc>
+        event EventHandler SelectionChanged;
+
+        /// <devdoc>
+        ///    <para>
+        ///       Adds an event handler to the selection service.
+        ///    </para>
+        /// </devdoc>
+        event EventHandler SelectionChanging;
+
+        /// <devdoc>
+        ///    <para>Gets a value indicating whether the component is currently selected.</para>
+        /// </devdoc>
+
+        bool GetComponentSelected(object component);
+
+        /// <devdoc>
+        ///    <para>
+        ///       Gets a collection of components that are currently part of the user's selection.
+        ///    </para>
+        /// </devdoc>
+        ICollection GetSelectedComponents();
+
+        /// <devdoc>
+        ///    <para>
+        ///       Sets the currently selected set of components.
+        ///    </para>
+        /// </devdoc>
+        void SetSelectedComponents(ICollection components);
+
+        /// <devdoc>
+        ///    <para>
+        ///       Sets the currently selected set of components to those with the specified selection type within the specified array of components.
+        ///    </para>
+        /// </devdoc>
+        void SetSelectedComponents(ICollection components, SelectionTypes selectionType);
+    }
+}
+