ToolboxItemAttribute.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / whidbey / REDBITS / ndp / fx / src / CompMod / System / ComponentModel / Design / ToolboxItemAttribute.cs / 1 / ToolboxItemAttribute.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

// SECREVIEW: remove this attribute once bug#411883 is fixed. 
[assembly: System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Security", "CA2113:SecureLateBindingMethods", Scope="member", Target="System.ComponentModel.ToolboxItemAttribute.get_ToolboxItemType():System.Type")] 

namespace System.ComponentModel { 

    using System;
    using System.Diagnostics;
    using System.Globalization; 
    using System.Security.Permissions;
 
    ///  
    ///    
    ///       Specifies attributes for a toolbox item. 
    ///    
    /// 
    [AttributeUsage(AttributeTargets.All)]
    public class ToolboxItemAttribute : Attribute { 

        private Type toolboxItemType; 
        private string toolboxItemTypeName; 

        ///  
        ///    
        ///    Initializes a new instance of ToolboxItemAttribute and sets the type to
        ///    IComponent.
        ///     
        /// 
        public static readonly ToolboxItemAttribute Default = new ToolboxItemAttribute("System.Drawing.Design.ToolboxItem, " + AssemblyRef.SystemDrawing); 
 
        /// 
        ///     
        ///       Initializes a new instance of ToolboxItemAttribute and sets the type to
        ///    .
        ///    
        ///  
        public static readonly ToolboxItemAttribute None = new ToolboxItemAttribute(false);
 
        ///  
        ///    
        ///       Gets whether the attribute is the default attribute. 
        ///    
        /// 
        public override bool IsDefaultAttribute() {
            return this.Equals(Default); 
        }
 
        ///  
        ///    
        ///       Initializes a new instance of ToolboxItemAttribute and 
        ///       specifies if default values should be used.
        ///    
        /// 
        public ToolboxItemAttribute(bool defaultType) { 
            if (defaultType) {
                toolboxItemTypeName = "System.Drawing.Design.ToolboxItem, " + AssemblyRef.SystemDrawing; 
            } 
        }
 
        /// 
        ///    
        ///       Initializes a new instance of ToolboxItemAttribute and
        ///       specifies the name of the type. 
        ///    
        ///  
        public ToolboxItemAttribute(string toolboxItemTypeName) { 
            string temp = toolboxItemTypeName.ToUpper(CultureInfo.InvariantCulture);
            Debug.Assert(temp.IndexOf(".DLL") == -1, "Came across: " + toolboxItemTypeName + " . Please remove the .dll extension"); 
            this.toolboxItemTypeName = toolboxItemTypeName;
        }

        ///  
        ///    
        ///       Initializes a new instance of ToolboxItemAttribute and 
        ///       specifies the type of the toolbox item. 
        ///    
        ///  
        public ToolboxItemAttribute(Type toolboxItemType) {
            this.toolboxItemType = toolboxItemType;
            this.toolboxItemTypeName = toolboxItemType.AssemblyQualifiedName;
        } 

        ///  
        ///     
        ///       Gets the toolbox item's type.
        ///     
        /// 
        public Type ToolboxItemType {
            get{
                if (toolboxItemType == null) { 
                    if (toolboxItemTypeName != null) {
                        try { 
                            toolboxItemType = Type.GetType(toolboxItemTypeName, true); 
                        }
                        catch (Exception ex) { 
                            throw new ArgumentException(SR.GetString(SR.ToolboxItemAttributeFailedGetType, toolboxItemTypeName), ex);
                        }
                    }
                } 
                return toolboxItemType;
            } 
        } 

        public string ToolboxItemTypeName { 
            get {
                if (toolboxItemTypeName == null) {
                    return String.Empty;
                } 
                return toolboxItemTypeName;
            } 
        } 

        public override bool Equals(object obj) { 
            if (obj == this) {
                return true;
            }
 
            ToolboxItemAttribute other = obj as ToolboxItemAttribute;
            return (other != null) && (other.ToolboxItemTypeName == ToolboxItemTypeName); 
        } 

        public override int GetHashCode() { 
            if (toolboxItemTypeName != null) {
                return toolboxItemTypeName.GetHashCode();
            }
            return base.GetHashCode(); 
        }
    } 
}

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