COM2IProvidePropertyBuilderHandler.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / WinForms / Managed / System / WinForms / ComponentModel / COM2Interop / COM2IProvidePropertyBuilderHandler.cs / 1305376 / COM2IProvidePropertyBuilderHandler.cs
                        

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

 
namespace System.Windows.Forms.ComponentModel.Com2Interop { 
    using System.ComponentModel;
    using System.Diagnostics; 
    using System;
    using System.Collections;
    using Microsoft.Win32;
    using System.Drawing.Design; 

    [System.Security.SuppressUnmanagedCodeSecurityAttribute()] 
    internal class Com2IProvidePropertyBuilderHandler : Com2ExtendedBrowsingHandler { 

        public override Type Interface { 
            get {
                return typeof(NativeMethods.IProvidePropertyBuilder);
            }
        } 

        private bool GetBuilderGuidString(NativeMethods.IProvidePropertyBuilder target, int dispid, ref string strGuidBldr, int[] bldrType) { 
            bool valid = false; 
            string[] pGuidBldr = new string[1];
            if (NativeMethods.Failed(target.MapPropertyToBuilder(dispid, bldrType, pGuidBldr, ref valid))) { 
                valid = false;
            }

            if (valid && (bldrType[0] & _CTLBLDTYPE.CTLBLDTYPE_FINTERNALBUILDER) == 0) { 
                valid = false;
                Debug.Fail("Property Browser doesn't support standard builders -- NYI"); 
            } 

            if (!valid) { 
                return false;
            }

            if (pGuidBldr[0] == null) { 
                strGuidBldr = Guid.Empty.ToString();
            } 
            else { 
                strGuidBldr = pGuidBldr[0];
            } 
            return true;
        }

        public override void SetupPropertyHandlers(Com2PropertyDescriptor[] propDesc) { 
            if (propDesc == null) {
                return; 
            } 
            for (int i = 0; i < propDesc.Length; i++) {
                propDesc[i].QueryGetBaseAttributes += new GetAttributesEventHandler(this.OnGetBaseAttributes); 

                propDesc[i].QueryGetTypeConverterAndTypeEditor += new GetTypeConverterAndTypeEditorEventHandler(this.OnGetTypeConverterAndTypeEditor);

            } 
        }
 
 
        /// 
        ///  
        /// Here is where we handle IVsPerPropertyBrowsing.GetLocalizedPropertyInfo and IVsPerPropertyBrowsing.   HideProperty
        /// such as IPerPropertyBrowsing, IProvidePropertyBuilder, etc.
        /// 
        private void OnGetBaseAttributes(Com2PropertyDescriptor sender, GetAttributesEvent attrEvent) { 
            NativeMethods.IProvidePropertyBuilder target = sender.TargetObject as NativeMethods.IProvidePropertyBuilder;
 
            if (target != null ) { 
                string s = null;
                bool builderValid = GetBuilderGuidString(target, sender.DISPID, ref s, new int[1]); 
                // we hide IDispatch props by default, we we need to force showing them here
                if (sender.CanShow && builderValid) {
                    if (typeof(UnsafeNativeMethods.IDispatch).IsAssignableFrom(sender.PropertyType)) {
                        attrEvent.Add(BrowsableAttribute.Yes); 
                    }
                } 
            } 
        }
 
        private void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent) {
            object target = sender.TargetObject;

            if (target is NativeMethods.IProvidePropertyBuilder) { 
                NativeMethods.IProvidePropertyBuilder propBuilder = (NativeMethods.IProvidePropertyBuilder)target;
                int[] pctlBldType = new int[1]; 
                string guidString = null; 

                if (GetBuilderGuidString(propBuilder, sender.DISPID, ref guidString, pctlBldType)) { 
                    gveevent.TypeEditor = new Com2PropertyBuilderUITypeEditor(sender, guidString, pctlBldType[0], (UITypeEditor)gveevent.TypeEditor);
                }
            }
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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