ControlPropertyNameConverter.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / xsp / System / Web / UI / ControlPropertyNameConverter.cs / 1 / ControlPropertyNameConverter.cs
                        

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

namespace System.Web.UI.WebControls { 
 
    using System.Collections;
    using System.ComponentModel; 
    using System.ComponentModel.Design;
    using System.Globalization;
    using System.Reflection;
    using System.Web.Util; 
    using System.Security.Permissions;
 
 
    /// 
    /// TypeConverter for ControlParameter's PropertyName property. 
    /// 
    [AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    [AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
    public class ControlPropertyNameConverter : StringConverter { 

        ///  
        /// Returns a list of all the propery names for a given control. 
        /// 
        private string[] GetPropertyNames(Control control) { 

            ArrayList array = new ArrayList();

            PropertyDescriptorCollection pdc = TypeDescriptor.GetProperties(control.GetType()); 

            foreach (PropertyDescriptor desc in pdc) { 
                array.Add(desc.Name); 
            }
 
            array.Sort(Comparer.Default);

            return (string[])array.ToArray(typeof(string));
        } 

 
        ///  
        /// Returns a collection of standard values retrieved from the context specified
        /// by the specified type descriptor. 
        /// 
        public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context) {
            if (context == null) {
                return null; 
            }
 
            // Get ControlID 
            ControlParameter param = (ControlParameter)context.Instance;
            string controlID = param.ControlID; 

            // Check that we actually have a control ID
            if (String.IsNullOrEmpty(controlID))
                return null; 

            // Get designer host 
            IDesignerHost host = (IDesignerHost)context.GetService(typeof(IDesignerHost)); 
            Debug.Assert(host != null, "Unable to get IDesignerHost in ControlPropertyNameConverter");
 
            if (host == null)
                return null;

            // Get control 
            ComponentCollection allComponents = host.Container.Components;
 
            Control control = allComponents[controlID] as Control; 

            if (control == null) 
                return null;

            string[] propertyNames = GetPropertyNames(control);
 
            return new StandardValuesCollection(propertyNames);
        } 
 

        ///  
        /// Gets whether or not the context specified contains exclusive standard values.
        /// 
        public override bool GetStandardValuesExclusive(ITypeDescriptorContext context) {
            return false; 
        }
 
 
        /// 
        /// Gets whether or not the specified context contains supported standard values. 
        /// 
        public override bool GetStandardValuesSupported(ITypeDescriptorContext context) {
            return (context != null);
        } 
    }
}

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