AdvancedBindingPropertyDescriptor.cs source code in C# .NET

                        Code:
                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / WinForms / System / WinForms / Design / AdvancedBindingPropertyDescriptor.cs / 1 / AdvancedBindingPropertyDescriptor.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Windows.Forms.Design { 
 
    using System.Design;
    using System; 
    using System.ComponentModel;

    /// 
    ///  
    ///    Provides a property description of an advanced binding object.
    ///  
    internal class AdvancedBindingPropertyDescriptor : PropertyDescriptor { 

        internal static AdvancedBindingEditor advancedBindingEditor = new AdvancedBindingEditor(); 
        internal static AdvancedBindingTypeConverter advancedBindingTypeConverter = new AdvancedBindingTypeConverter();
        internal AdvancedBindingPropertyDescriptor() : base(SR.GetString(SR.AdvancedBindingPropertyDescName), null) {
        }
 
        /// 
        ///  
        ///    Gets the type of component this property is bound to. 
        /// 
        public override Type ComponentType { 
            get {
                return typeof(ControlBindingsCollection);
            }
        } 

        public override AttributeCollection Attributes { 
            get { 
                return new AttributeCollection(new Attribute[]{new SRDescriptionAttribute(SR.AdvancedBindingPropertyDescriptorDesc),
                                                               NotifyParentPropertyAttribute.Yes, 
                                                               new MergablePropertyAttribute(false)});
            }
        }
 
        /// 
        ///  
        ///    Indicates whether this property is read-only. 
        /// 
        public override bool IsReadOnly { 
            get {
                return false;
            }
        } 

        ///  
        ///  
        ///    Gets the type of the property.
        ///  
        public override Type PropertyType {
            get {
                return typeof(object);
            } 
        }
 
        ///  
        /// 
        ///    Gets the type converter. 
        /// 
        public override TypeConverter Converter {
            get {
                if (advancedBindingTypeConverter == null) { 
                    advancedBindingTypeConverter = new AdvancedBindingTypeConverter();
                } 
 
                return advancedBindingTypeConverter;
            } 
        }

        /// 
        ///  
        ///    Gets an editor of the specified type.
        ///  
        public override object GetEditor(Type type) { 
            if (type == typeof(System.Drawing.Design.UITypeEditor)) {
                return advancedBindingEditor; 
            }
            return base.GetEditor(type);
        }
 
        /// 
        ///  
        ///    Indicates whether resetting the component will change the value of the 
        ///       component.
        ///  
        public override bool CanResetValue(object component) {
            return false;
        }
 
        /// 
        ///  
        ///    In an derived class, adds the attributes of the inherited class to the 
        ///       specified list of attributes in the parent class.
        ///  
        protected override void FillAttributes(System.Collections.IList attributeList) {
            attributeList.Add(RefreshPropertiesAttribute.All);
            base.FillAttributes(attributeList);
        } 

 
        ///  
        /// 
        ///    Gets the current value of the property on the specified 
        ///       component.
        /// 
        public override object GetValue(object component) {
            System.Diagnostics.Debug.Assert(component is ControlBindingsCollection, "we only deal w/ bindings collection"); 
            return component;
        } 
 
        /// 
        ///  
        ///    Resets the value of the property on the specified component.
        /// 
        public override void ResetValue(object component) {
        } 

        ///  
        ///  
        ///    Sets the value of the property on the specified component to the specified
        ///       value. 
        /// 
        public override void SetValue(object component, object value) {
        }
 
        /// 
        ///  
        ///    Indicates whether the value of this property should be persisted. 
        /// 
        public override bool ShouldSerializeValue(object component) { 
            return false;
        }

 
        internal class AdvancedBindingTypeConverter : TypeConverter {
            public override object ConvertTo(ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType) { 
                System.Diagnostics.Debug.Assert(value is ControlBindingsCollection, "we only deal w/ bindings collection"); 
                if (destinationType == typeof(String)) {
                    return String.Empty; 
                } else {
                    return base.ConvertTo(context, culture, value, destinationType);
                }
            } 
        }
    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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AdvancedBindingPropertyDescriptor.cs source code in C# .NET

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