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//------------------------------------------------------------------------------
// <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
}
}
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