Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/UI/WebControls/ErrorStyle.cs

@@ -0,0 +1,88 @@
+//------------------------------------------------------------------------------
+// <copyright file="ErrorStyle.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.UI.WebControls {
+
+    using System;
+    using System.Collections;
+    using System.ComponentModel;
+    using System.ComponentModel.Design;
+    using System.Drawing;
+
+    // A derived Style class with the default ForeColor set to Color.Red instead of Color.Empty
+    internal sealed class ErrorStyle : Style, ICustomTypeDescriptor {
+
+        public ErrorStyle() : base() {
+            ForeColor = Color.Red;
+        }
+
+        #region ICustomTypeDesciptor implementation
+        AttributeCollection ICustomTypeDescriptor.GetAttributes() {
+            return TypeDescriptor.GetAttributes(this, true);
+        }
+
+        string ICustomTypeDescriptor.GetClassName() {
+            return TypeDescriptor.GetClassName(this, true);
+        }
+
+        string ICustomTypeDescriptor.GetComponentName() {
+            return TypeDescriptor.GetComponentName(this, true);
+        }
+
+        TypeConverter ICustomTypeDescriptor.GetConverter() {
+            return TypeDescriptor.GetConverter(this, true);
+        }
+
+        EventDescriptor ICustomTypeDescriptor.GetDefaultEvent() {
+            return TypeDescriptor.GetDefaultEvent(this, true);
+        }
+
+        PropertyDescriptor ICustomTypeDescriptor.GetDefaultProperty() {
+            return TypeDescriptor.GetDefaultProperty(this, true);
+        }
+
+        object ICustomTypeDescriptor.GetEditor(Type editorBaseType) {
+            return TypeDescriptor.GetEditor(this, editorBaseType, true);
+        }
+
+        EventDescriptorCollection ICustomTypeDescriptor.GetEvents() {
+            return TypeDescriptor.GetEvents(this, true);
+        }
+
+        EventDescriptorCollection ICustomTypeDescriptor.GetEvents(Attribute[] attributes) {
+            return TypeDescriptor.GetEvents(this, attributes, true);
+        }
+
+        PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties() {
+            return ((ICustomTypeDescriptor)this).GetProperties(null);
+        }
+
+        PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties(Attribute[] attributes) {
+            PropertyDescriptorCollection oldProperties = TypeDescriptor.GetProperties(GetType(), attributes);
+            PropertyDescriptor[] newProperties = new PropertyDescriptor[oldProperties.Count];
+            PropertyDescriptor foreColor = oldProperties["ForeColor"];
+
+            for (int i=0; i < oldProperties.Count; i++) {
+                PropertyDescriptor property = oldProperties[i];
+                if (property == foreColor) {
+                    newProperties[i] = TypeDescriptor.CreateProperty(
+                        GetType(), property, new DefaultValueAttribute(typeof(Color), "Red"));
+                }
+                else {
+                    newProperties[i] = property;
+                }
+            }
+
+            return new PropertyDescriptorCollection(newProperties, true);
+        }
+
+        object ICustomTypeDescriptor.GetPropertyOwner(PropertyDescriptor pd) {
+            return this;
+        }
+        #endregion //ICustomTypeDescriptor implementation
+    }
+}
+