private int DeleteMemberByDispID(int dispid)
{
var member = ReflectMembers.Concat(expandoMembers).FirstOrDefault(testMember => testMember.DispID == dispid);
if (!member.IsDefault && RemoveMember(member.Name))
{
return(HResult.S_OK);
}
// IDispatchEx specifies S_FALSE, but DISP_E_UNKNOWNNAME provides parity with .NET Framework CCWs
return(HResult.DISP_E_UNKNOWNNAME);
}
private int GetNextDispID(int dispidCurrent, out int dispidNext)
{
var member = ReflectMembers.Concat(expandoMembers).OrderBy(testMember => testMember.DispID).FirstOrDefault(testMember => testMember.DispID > dispidCurrent);
if (!member.IsDefault)
{
dispidNext = member.DispID;
return(HResult.S_OK);
}
dispidNext = SpecialDispIDs.Default;
return(HResult.S_FALSE);
}
private int GetMemberName(int dispid, out string name)
{
var member = ReflectMembers.Concat(expandoMembers).OrderBy(testMember => testMember.DispID).FirstOrDefault(testMember => testMember.DispID == dispid);
if (!member.IsDefault)
{
name = member.Name;
return(HResult.S_OK);
}
name = null;
return(HResult.S_FALSE);
}
private int DeleteMemberByName(string name, DispatchNameFlags nameFlags)
{
var nameComparison = nameFlags.HasFlag(DispatchNameFlags.CaseInsensitive) ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal;
var member = ReflectMembers.Concat(expandoMembers).FirstOrDefault(testMember => string.Equals(testMember.Name, name, nameComparison));
if (!member.IsDefault && RemoveMember(member.Name))
{
return(HResult.S_OK);
}
// IDispatchEx specifies S_FALSE, but DISP_E_UNKNOWNNAME provides parity with .NET Framework CCWs
return(HResult.DISP_E_UNKNOWNNAME);
}
protected override void AddExpandoMemberName(string name)
{
var dispid = 1;
var dispids = ReflectMembers.Concat(expandoMembers).Select(member => member.DispID).ToArray();
for (; dispids.Contains(dispid); dispid++)
{
if (dispid >= int.MaxValue)
{
throw new NotSupportedException("The object cannot support additional dynamic members");
}
}
base.AddExpandoMemberName(name);
expandoMembers.Add(new Member {
Name = name, DispID = dispid, DispIDName = MiscHelpers.GetDispIDName(dispid)
});
}
private int GetDispID(string name, DispatchNameFlags nameFlags, out int dispid)
{
var nameComparison = nameFlags.HasFlag(DispatchNameFlags.CaseInsensitive) ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal;
var member = ReflectMembers.Concat(expandoMembers).FirstOrDefault(testMember => string.Equals(testMember.Name, name, nameComparison));
if (!member.IsDefault)
{
dispid = member.DispID;
return(HResult.S_OK);
}
if (nameFlags.HasFlag(DispatchNameFlags.Ensure))
{
ThisExpando.AddProperty(name);
return(GetDispID(name, nameFlags & ~DispatchNameFlags.Ensure, out dispid));
}
dispid = SpecialDispIDs.Unknown;
return(HResult.DISP_E_UNKNOWNNAME);
}
