Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/UI/WebParts/Part.cs

@@ -0,0 +1,137 @@
+//------------------------------------------------------------------------------
+// <copyright file="Part.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI.WebControls.WebParts {
+
+    using System;
+    using System.ComponentModel;
+    using System.Drawing.Design;
+    using System.Web.UI.WebControls;
+
+    /// <devdoc>
+    /// Base class for all Part classes in the WebPart framework.  Common to all Part controls are properties that
+    /// allow the control to be rendered in a modular fashion.
+    /// </devdoc>
+    [
+    Designer("System.Web.UI.Design.WebControls.WebParts.PartDesigner, " + AssemblyRef.SystemDesign),
+    ParseChildren(true),
+    PersistChildren(false),
+    ]
+    public abstract class Part : Panel, INamingContainer, ICompositeControlDesignerAccessor {
+
+        // Prevent class from being subclassed outside of our assembly
+        internal Part() {
+        }
+
+        /// <devdoc>
+        /// The UI state of the part
+        /// </devdoc>
+        [
+        DefaultValue(PartChromeState.Normal),
+        WebCategory("WebPartAppearance"),
+        WebSysDescription(SR.Part_ChromeState),
+        ]
+        public virtual PartChromeState ChromeState {
+            get {
+                object o = ViewState["ChromeState"];
+                return (o != null) ? (PartChromeState)o : PartChromeState.Normal;
+            }
+            set {
+                if ((value < PartChromeState.Normal) || (value > PartChromeState.Minimized)) {
+                    throw new ArgumentOutOfRangeException("value");
+                }
+
+                ViewState["ChromeState"] = value;
+            }
+        }
+
+        /// <devdoc>
+        /// The type of frame/border for the part.
+        /// </devdoc>
+        [
+        DefaultValue(PartChromeType.Default),
+        WebCategory("WebPartAppearance"),
+        WebSysDescription(SR.Part_ChromeType),
+        ]
+        public virtual PartChromeType ChromeType {
+            get {
+                object o = ViewState["ChromeType"];
+                return (o != null) ? (PartChromeType)(int)o : PartChromeType.Default;
+            }
+            set {
+                if ((value < PartChromeType.Default) || (value > PartChromeType.BorderOnly)) {
+                    throw new ArgumentOutOfRangeException("value");
+                }
+                ViewState["ChromeType"] = (int)value;
+            }
+        }
+
+        // Copied from CompositeControl
+        /// <internalonly/>
+        /// <devdoc>
+        /// </devdoc>
+        public override ControlCollection Controls {
+            get {
+                EnsureChildControls();
+                return base.Controls;
+            }
+        }
+
+        /// <devdoc>
+        /// Short descriptive text used in tooltips and web part catalog descriptions
+        /// </devdoc>
+        [
+        DefaultValue(""),
+        Localizable(true),
+        WebCategory("WebPartAppearance"),
+        WebSysDescription(SR.Part_Description),
+        ]
+        public virtual string Description {
+            get {
+                string s = (string)ViewState["Description"];
+                return (s != null) ? s : String.Empty;
+            }
+            set {
+                ViewState["Description"] = value;
+            }
+        }
+
+        [
+        // Must use WebSysDefaultValue instead of DefaultValue, since it is overridden in extending classes
+        Localizable(true),
+        WebSysDefaultValue(""),
+        WebCategory("WebPartAppearance"),
+        WebSysDescription(SR.Part_Title),
+        ]
+        public virtual string Title {
+            get {
+                string s = (string)ViewState["Title"];
+                return (s != null) ? s : String.Empty;
+            }
+            set {
+                ViewState["Title"] = value;
+            }
+        }
+
+        // Copied from CompositeControl
+        /// <devdoc>
+        /// Perform our own databinding, then perform our child controls' databinding.
+        /// </devdoc>
+        public override void DataBind() {
+            OnDataBinding(EventArgs.Empty);
+            EnsureChildControls();
+            DataBindChildren();
+        }
+
+        // Copied from CompositeControl
+        #region ICompositeControlDesignerAccessor implementation
+        void ICompositeControlDesignerAccessor.RecreateChildControls() {
+            ChildControlsCreated = false;
+            EnsureChildControls();
+        }
+        #endregion
+    }
+}