public unsafe override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
IntPtr parentHandle = (IntPtr)User32.GetFocus();
IUIService uiSvc = (IUIService)provider.GetService(typeof(IUIService));
if (uiSvc != null)
{
IWin32Window parent = uiSvc.GetDialogOwnerWindow();
if (parent != null)
{
parentHandle = parent.Handle;
}
}
BOOL useValue = BOOL.FALSE;
object pValue = value;
try
{
object obj = propDesc.TargetObject;
if (obj is ICustomTypeDescriptor)
{
obj = ((ICustomTypeDescriptor)obj).GetPropertyOwner(propDesc);
}
Debug.Assert(obj is VSSDK.IProvidePropertyBuilder, "object is not IProvidePropertyBuilder");
VSSDK.IProvidePropertyBuilder propBuilder = (VSSDK.IProvidePropertyBuilder)obj;
if (!propBuilder.ExecuteBuilder(
propDesc.DISPID,
guidString,
null,
parentHandle,
ref pValue,
&useValue).Succeeded())
{
useValue = BOOL.FALSE;
}
}
catch (ExternalException ex)
{
Debug.Fail("Failed to show property frame: " + ex.ErrorCode.ToString(CultureInfo.InvariantCulture));
}
if (useValue.IsTrue() && (bldrType & VSSDK.CTLBLDTYPE.FEDITSOBJIDRECTLY) == 0)
{
return(pValue);
}
return(value);
}
private unsafe bool GetBuilderGuidString(VSSDK.IProvidePropertyBuilder target, Ole32.DispatchID dispid, ref string strGuidBldr, VSSDK.CTLBLDTYPE *bldrType)
{
BOOL valid = BOOL.FALSE;
var pGuidBldr = new string[1];
if (!target.MapPropertyToBuilder(dispid, bldrType, pGuidBldr, &valid).Succeeded())
{
return(false);
}
if (valid.IsTrue() && (*bldrType & VSSDK.CTLBLDTYPE.FINTERNALBUILDER) == 0)
{
Debug.Fail("Property Browser doesn't support standard builders -- NYI");
return(false);
}
strGuidBldr = pGuidBldr[0] ?? Guid.Empty.ToString();
return(true);
}
