Code:
/ DotNET / DotNET / 8.0 / 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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