libxmltv/Core/DataSourceBindable.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using libxmltv.Interfaces;
using System.Collections;
using Enterprise.Logging;

namespace libxmltv.Core
{
    public class ChannelList : List<IXMLTVChannel>, IDataSourceBindable//, IDataConverter<IChannelDefintionList>
    {
        private class ChannelDefintionList : List<IChannelDefintion>, IDataSourceSortable, IDataSourceFilterable, IChannelDefintionList   
        {
            public ChannelDefintionList() { }
            public ChannelDefintionList(List<IChannelDefintion> collection) { collection.ForEach(s => this.Add(s)); }
            #region IDataSourceSortable members
            public void Sort(ref object source, bool descending, params string[] args)
            {
            }
            #endregion
            #region IDataSourceFilterable members
            public void Filter(ref object source, params string[] args)
            {
            }
            #endregion
        }
        private class ChannelDefintion : IChannelDefintion
        {
            public ChannelDefintion()
            {
                ChannelId = string.Empty;
                ChannelName = string.Empty;
            }
            public string ChannelId { get; internal set; }
            public string ChannelName { get; internal set; }

            
        }
        //static private List<string> known_columns;
        //static ChannelList()
        //{
        //    known_columns = new List<string>();
        //    known_columns.Add("Id");
        //    known_columns.Add("Name");
        //}
        public ChannelList() { }

        //public object ConvertObjectData(object source) { return this.ConvertData(source); }
        //public IChannelDefintionList ConvertData(object source)
        //{
        //    //object t = source;
        //    if (source.GetType() != typeof(ChannelDefintionList)) { throw new InvalidCastException(string.Format("Cannot cast: '{0}' to '{1}'", source.GetType().Name, typeof(ChannelDefintionList).Name)); }
        //    //if (type != typeof(IChannelDefintionList)) { throw new InvalidCastException(string.Format("Cannot cast: '{0}' to '{1}'", type.Name, typeof(IChannelDefintionList).Name)); }
        //    IChannelDefintionList t = (source as IChannelDefintionList);
        //    return t;
        //}
        /// <summary>
        /// 
        /// </summary>
        /// <param name="type"></param>
        /// <returns></returns>
        public object CreateBindableDataSource(out Type type)
        {
            type = typeof(IChannelDefintionList);
            object bindable = new object();
            ChannelDefintionList list = new ChannelDefintionList();
            
            foreach (var t in this)
            {
                try
                {
                    ChannelDefintion definition = new ChannelDefintion();
                    definition.ChannelId = t.Id;
                    definition.ChannelName = t.MetaData[XMLTVConstants.Channels.ChannelDisplayName].FirstOrDefault().Value.ToString();                    
                    list.Add(definition);
                }
                catch (Exception ex) { throw ex; }
            }
            list = new ChannelDefintionList(list.OrderBy(s => s.ChannelName).ToList());
            bindable = list;
            return bindable;
        }
      
    }
    public class ProgramList : List<IXMLTVProgram>, IDataSourceBindable//, IDataConverter<IProgramDefinitionList>
    {
        private class ProgramDefinitionList : List<IProgramDefinition>, IDataSourceSortable, IDataSourceFilterable, IProgramDefinitionList  
        {
            public ProgramDefinitionList() { }
            public ProgramDefinitionList(List<IProgramDefinition> collection) { collection.ForEach(s => this.Add(s)); }
            #region IDataSourceSortable members
            public void Sort(ref object source, bool descending, params string[] args)
            {
                IProgramDefinitionList list = null;
                IOrderedEnumerable<IProgramDefinition> ordered = null;
                try
                {
                    list = (ProgramDefinitionList)source;
                    var col = args.First().ToString().ToLower();
                    switch (col)
                    {
                        case "channelnumber": ordered = descending ? list.OrderByDescending(s => s.ChannelNumber) : list.OrderBy(s => s.ChannelNumber); break;
                        case "channelname": ordered = descending ? list.OrderByDescending(s => s.ChannelName) : list.OrderBy(s => s.ChannelName); break;
                        case "start": ordered = descending ? list.OrderByDescending(s => s.Start) : list.OrderBy(s => s.Start); break;
                        case "stop": ordered = descending ? list.OrderByDescending(s => s.Stop) : list.OrderBy(s => s.Stop); break;
                        case "description": ordered = descending ? list.OrderByDescending(s => s.Description) : list.OrderBy(s => s.Description); break;
                        case "title": ordered = descending ? list.OrderByDescending(s => s.Title) : list.OrderBy(s => s.Title); break;
                        case "subtitle": ordered = descending ? list.OrderByDescending(s => s.SubTitle) : list.OrderBy(s => s.SubTitle); break;
                    }
                    //bool first = true;
                    foreach (var arg in args.Skip(1))
                    {
                        col = arg.ToLower();
                        switch (col)
                        {
                            case "channelnumber": ordered = descending ? ordered.ThenByDescending(s => s.ChannelNumber) : ordered.ThenBy(s => s.ChannelNumber); break;
                            case "channelname": ordered = descending ? list.OrderByDescending(s => s.ChannelName) : list.OrderBy(s => s.ChannelName); break;
                            case "start": ordered = descending ? ordered.ThenByDescending(s => s.Start) : ordered.ThenBy(s => s.Start); break;
                            case "stop": ordered = descending ? ordered.ThenByDescending(s => s.Stop) : ordered.ThenBy(s => s.Stop); break;
                            case "description": ordered = descending ? ordered.ThenByDescending(s => s.Description) : ordered.ThenBy(s => s.Description); break;
                            case "title": ordered = descending ? ordered.ThenByDescending(s => s.Title) : ordered.ThenBy(s => s.Title); break;
                            case "subtitle": ordered = descending ? ordered.ThenByDescending(s => s.SubTitle) : ordered.ThenBy(s => s.SubTitle); break;
                        }
                    }
                    list = new ProgramDefinitionList(ordered.ToList());
                }
                catch (Exception ex) { throw ex; }
                if (list != null) { source = list; }
            }
            #endregion
            #region IDataSourceFilterable members
            public void Filter(ref object source, params string[] args)
            {
                IProgramDefinitionList list = null;
                List<IProgramDefinition> ordered = null;
                try
                {
                    list = (ProgramDefinitionList)source;
                    //var col = args.First().ToString().ToLower();
                    //var data = args.().ToString().ToLower();

                    if (args.Count() != 2) { throw new ArgumentOutOfRangeException("args", "Excpected 2 aguments: columnname and filtertext"); }

                    string columnname = args[0].ToLower();
                    string filtertext = args[1].ToLower();

                    switch (columnname)
                    {
                        case "channelnumber": ordered = list.ToList().FindAll(s => s.ChannelNumber.ToString().ToLower().Contains(filtertext)); break;
                        case "channelname": ordered = list.ToList().FindAll(s => s.ChannelName.ToLower().Contains(filtertext)); break;
                        case "start":
                        case "stop":
                            throw new ArgumentException("columnname", string.Format("Filtering for column: '{0}' has not been implemented", columnname));
                        case "description": ordered = list.ToList().FindAll(s => s.Description.ToLower().Contains(filtertext)); break;
                        case "title": ordered = list.ToList().FindAll(s => s.Title.ToLower().Contains(filtertext)); break;
                        case "subtitle": ordered = list.ToList().FindAll(s => s.SubTitle.ToLower().Contains(filtertext)); break;
                    }                   
                    list = new ProgramDefinitionList(ordered.ToList());
                    if (list.Count == 0)
                    {
                        list = (ProgramDefinitionList)source;
                        gLog.Warn.WriteLine("Filering by: column='{0}' with filer='{1}' returned no data",columnname, filtertext);
                    }
                }
                catch (Exception ex) { throw ex; }
                if (list != null) { source = list; }
            }
            #endregion
        }
        private class ProgramDefintion : IProgramDefinition
        {
            public ProgramDefintion()
            {
                //ChannelId = string.Empty;
                ChannelNumber = 0;
                ChannelName = string.Empty;
                Start = new DateTime();
                Stop = new DateTime();
                Description = string.Empty;
                Title = string.Empty;
                SubTitle = string.Empty;
            }
            //public string ChannelId { get; internal set; }
            public int ChannelNumber { get; internal set; }
            public string ChannelName { get; internal set; }
            public DateTime Start { get; internal set; }
            public DateTime Stop { get; internal set; }
            public string Title { get; internal set; }
            public string SubTitle { get; internal set; }
            public string Description { get; internal set; }

          
        }
        public ProgramList() { }
        //public object ConvertObjectData(object source) { return this.ConvertData(source); }
        //public IProgramDefinitionList ConvertData(object source)
        //{
        //    if (source.GetType() != typeof(ProgramDefinitionList)) { throw new InvalidCastException(string.Format("Cannot cast: '{0}' to '{1}'", source.GetType().Name, typeof(ProgramDefinitionList).Name)); }
        //    //if (type != typeof(IProgramDefinitionList)) { throw new InvalidCastException(string.Format("Cannot cast: '{0}' to '{1}'", type.Name, typeof(IProgramDefinitionList).Name)); }
        //    IProgramDefinitionList t = (source as IProgramDefinitionList);
        //    return t;
        //}
        /// <summary>
        /// 
        /// </summary>
        /// <param name="type"></param>
        /// <returns></returns>
        public object CreateBindableDataSource(out Type type)
        {
            type = typeof(IProgramDefinitionList);
            object bindable = new object();
            ProgramDefinitionList list = new ProgramDefinitionList();

            foreach (var t in this)
            {
                try
                {
                    ProgramDefintion definition = new ProgramDefintion();
                    string ChannelId = t.MetaData[XMLTVConstants.Programs.ProgramChannelId].ToString();
                    //definition.ChannelId = ChannelId;

                    var channels = XMLTV.GetChannels();
                    if (channels != null)
                    {
                        var channel = channels.Find(p => p.Id == ChannelId);
                        if (channel != null)
                        {
                            var channelname = channel.MetaData[XMLTVConstants.Channels.ChannelDisplayName].FirstOrDefault().Value.ToString();
                            var split = channelname.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
                            definition.ChannelNumber = Convert.ToInt32(split.First());
                            definition.ChannelName = string.IsNullOrEmpty(split.Last()) ? string.Empty : split.Last().ToString();

                        }
                        else
                        {
                            definition.ChannelNumber = 0;
                        }
                    }
                    else
                    {
                        definition.ChannelNumber = 0;
                    }
                    definition.Start = (DateTime)t.MetaData[XMLTVConstants.Programs.ProgramStart];
                    definition.Stop = (DateTime)t.MetaData[XMLTVConstants.Programs.ProgramStop];
                    definition.Description = t.MetaData[XMLTVConstants.Programs.ProgramDescription].ToString();
                    definition.Title = t.MetaData[XMLTVConstants.Programs.ProgramTitle].ToString();
                    definition.SubTitle = t.MetaData[XMLTVConstants.Programs.ProgramSubTitle].ToString();
                    list.Add(definition);
                }
                catch (Exception ex) { throw ex; }
            }

            list = new ProgramDefinitionList(list.OrderBy(s => s.Start).ToList());

            bindable = list;
            return bindable;
        }
    }
    public class ExtraList : List<IExtraMetaData>, IDataSourceBindable
    {

        public ExtraList() { }
        /// <summary>
        /// 
        /// </summary>
        /// <param name="type"></param>
        /// <returns></returns>
        public object CreateBindableDataSource(out Type type)
        {
            type = typeof(object);
            throw new NotImplementedException("Conversion of Extra MetaData to a bindable datasource has not been implemented.");
            //object bindable = new object();
            //return bindable;
        }
        //public object ConvertObjectData(object source) { return source; }
        //public object Convert(object source)
        //{
        //    throw new NotImplementedException("Conversion of Extra MetaData to a bindable datasource has not been implemented.");
        //}
    }
}
1	william	120	using System;
2			using System.Collections.Generic;
3			using System.Linq;
4			using System.Text;
5			using libxmltv.Interfaces;
6	william	126	using System.Collections;
7	william	134	using Enterprise.Logging;
8	william	120
9			namespace libxmltv.Core
10			{
11	william	128	public class ChannelList : List<IXMLTVChannel>, IDataSourceBindable//, IDataConverter<IChannelDefintionList>
12	william	120	{
13	william	128	private class ChannelDefintionList : List<IChannelDefintion>, IDataSourceSortable, IDataSourceFilterable, IChannelDefintionList
14	william	121	{
15	william	126	public ChannelDefintionList() { }
16	william	128	public ChannelDefintionList(List<IChannelDefintion> collection) { collection.ForEach(s => this.Add(s)); }
17	william	125	#region IDataSourceSortable members
18	william	131	public void Sort(ref object source, bool descending, params string[] args)
19	william	125	{
20			}
21			#endregion
22			#region IDataSourceFilterable members
23	william	126	public void Filter(ref object source, params string[] args)
24	william	125	{
25			}
26			#endregion
27	william	121	}
28	william	128	private class ChannelDefintion : IChannelDefintion
29	william	126	{
30			public ChannelDefintion()
31			{
32			ChannelId = string.Empty;
33			ChannelName = string.Empty;
34			}
35			public string ChannelId { get; internal set; }
36			public string ChannelName { get; internal set; }
37
38
39			}
40	william	122	//static private List<string> known_columns;
41			//static ChannelList()
42			//{
43			// known_columns = new List<string>();
44			// known_columns.Add("Id");
45			// known_columns.Add("Name");
46			//}
47	william	120	public ChannelList() { }
48
49	william	128	//public object ConvertObjectData(object source) { return this.ConvertData(source); }
50			//public IChannelDefintionList ConvertData(object source)
51			//{
52			// //object t = source;
53			// if (source.GetType() != typeof(ChannelDefintionList)) { throw new InvalidCastException(string.Format("Cannot cast: '{0}' to '{1}'", source.GetType().Name, typeof(ChannelDefintionList).Name)); }
54			// //if (type != typeof(IChannelDefintionList)) { throw new InvalidCastException(string.Format("Cannot cast: '{0}' to '{1}'", type.Name, typeof(IChannelDefintionList).Name)); }
55			// IChannelDefintionList t = (source as IChannelDefintionList);
56			// return t;
57			//}
58			/// <summary>
59			///
60			/// </summary>
61			/// <param name="type"></param>
62			/// <returns></returns>
63			public object CreateBindableDataSource(out Type type)
64	william	120	{
65	william	128	type = typeof(IChannelDefintionList);
66	william	120	object bindable = new object();
67	william	126	ChannelDefintionList list = new ChannelDefintionList();
68	william	122
69			foreach (var t in this)
70			{
71			try
72			{
73			ChannelDefintion definition = new ChannelDefintion();
74			definition.ChannelId = t.Id;
75	william	123	definition.ChannelName = t.MetaData[XMLTVConstants.Channels.ChannelDisplayName].FirstOrDefault().Value.ToString();
76	william	122	list.Add(definition);
77			}
78			catch (Exception ex) { throw ex; }
79			}
80	william	126	list = new ChannelDefintionList(list.OrderBy(s => s.ChannelName).ToList());
81	william	122	bindable = list;
82	william	120	return bindable;
83			}
84	william	128
85	william	120	}
86	william	128	public class ProgramList : List<IXMLTVProgram>, IDataSourceBindable//, IDataConverter<IProgramDefinitionList>
87	william	120	{
88	william	128	private class ProgramDefinitionList : List<IProgramDefinition>, IDataSourceSortable, IDataSourceFilterable, IProgramDefinitionList
89	william	121	{
90	william	126	public ProgramDefinitionList() { }
91	william	128	public ProgramDefinitionList(List<IProgramDefinition> collection) { collection.ForEach(s => this.Add(s)); }
92	william	126	#region IDataSourceSortable members
93	william	131	public void Sort(ref object source, bool descending, params string[] args)
94	william	126	{
95	william	131	IProgramDefinitionList list = null;
96	william	130	IOrderedEnumerable<IProgramDefinition> ordered = null;
97	william	126	try
98			{
99			list = (ProgramDefinitionList)source;
100	william	131	var col = args.First().ToString().ToLower();
101			switch (col)
102	william	126	{
103	william	137	case "channelnumber": ordered = descending ? list.OrderByDescending(s => s.ChannelNumber) : list.OrderBy(s => s.ChannelNumber); break;
104	william	131	case "channelname": ordered = descending ? list.OrderByDescending(s => s.ChannelName) : list.OrderBy(s => s.ChannelName); break;
105			case "start": ordered = descending ? list.OrderByDescending(s => s.Start) : list.OrderBy(s => s.Start); break;
106			case "stop": ordered = descending ? list.OrderByDescending(s => s.Stop) : list.OrderBy(s => s.Stop); break;
107			case "description": ordered = descending ? list.OrderByDescending(s => s.Description) : list.OrderBy(s => s.Description); break;
108			case "title": ordered = descending ? list.OrderByDescending(s => s.Title) : list.OrderBy(s => s.Title); break;
109			case "subtitle": ordered = descending ? list.OrderByDescending(s => s.SubTitle) : list.OrderBy(s => s.SubTitle); break;
110			}
111			//bool first = true;
112			foreach (var arg in args.Skip(1))
113			{
114			col = arg.ToLower();
115	william	130	switch (col)
116			{
117	william	137	case "channelnumber": ordered = descending ? ordered.ThenByDescending(s => s.ChannelNumber) : ordered.ThenBy(s => s.ChannelNumber); break;
118			case "channelname": ordered = descending ? list.OrderByDescending(s => s.ChannelName) : list.OrderBy(s => s.ChannelName); break;
119	william	131	case "start": ordered = descending ? ordered.ThenByDescending(s => s.Start) : ordered.ThenBy(s => s.Start); break;
120			case "stop": ordered = descending ? ordered.ThenByDescending(s => s.Stop) : ordered.ThenBy(s => s.Stop); break;
121			case "description": ordered = descending ? ordered.ThenByDescending(s => s.Description) : ordered.ThenBy(s => s.Description); break;
122			case "title": ordered = descending ? ordered.ThenByDescending(s => s.Title) : ordered.ThenBy(s => s.Title); break;
123			case "subtitle": ordered = descending ? ordered.ThenByDescending(s => s.SubTitle) : ordered.ThenBy(s => s.SubTitle); break;
124	william	130	}
125	william	126	}
126	william	131	list = new ProgramDefinitionList(ordered.ToList());
127	william	126	}
128			catch (Exception ex) { throw ex; }
129			if (list != null) { source = list; }
130			}
131			#endregion
132			#region IDataSourceFilterable members
133			public void Filter(ref object source, params string[] args)
134			{
135	william	132	IProgramDefinitionList list = null;
136			List<IProgramDefinition> ordered = null;
137			try
138			{
139			list = (ProgramDefinitionList)source;
140			//var col = args.First().ToString().ToLower();
141			//var data = args.().ToString().ToLower();
142
143			if (args.Count() != 2) { throw new ArgumentOutOfRangeException("args", "Excpected 2 aguments: columnname and filtertext"); }
144
145			string columnname = args[0].ToLower();
146			string filtertext = args[1].ToLower();
147
148			switch (columnname)
149			{
150	william	137	case "channelnumber": ordered = list.ToList().FindAll(s => s.ChannelNumber.ToString().ToLower().Contains(filtertext)); break;
151	william	132	case "channelname": ordered = list.ToList().FindAll(s => s.ChannelName.ToLower().Contains(filtertext)); break;
152			case "start":
153			case "stop":
154			throw new ArgumentException("columnname", string.Format("Filtering for column: '{0}' has not been implemented", columnname));
155			case "description": ordered = list.ToList().FindAll(s => s.Description.ToLower().Contains(filtertext)); break;
156			case "title": ordered = list.ToList().FindAll(s => s.Title.ToLower().Contains(filtertext)); break;
157			case "subtitle": ordered = list.ToList().FindAll(s => s.SubTitle.ToLower().Contains(filtertext)); break;
158			}
159			list = new ProgramDefinitionList(ordered.ToList());
160	william	134	if (list.Count == 0)
161			{
162			list = (ProgramDefinitionList)source;
163			gLog.Warn.WriteLine("Filering by: column='{0}' with filer='{1}' returned no data",columnname, filtertext);
164			}
165	william	132	}
166			catch (Exception ex) { throw ex; }
167			if (list != null) { source = list; }
168	william	126	}
169			#endregion
170			}
171	william	128	private class ProgramDefintion : IProgramDefinition
172	william	126	{
173	william	122	public ProgramDefintion()
174			{
175	william	123	//ChannelId = string.Empty;
176	william	137	ChannelNumber = 0;
177	william	122	ChannelName = string.Empty;
178			Start = new DateTime();
179			Stop = new DateTime();
180			Description = string.Empty;
181			Title = string.Empty;
182			SubTitle = string.Empty;
183			}
184	william	123	//public string ChannelId { get; internal set; }
185	william	137	public int ChannelNumber { get; internal set; }
186	william	122	public string ChannelName { get; internal set; }
187			public DateTime Start { get; internal set; }
188			public DateTime Stop { get; internal set; }
189			public string Title { get; internal set; }
190			public string SubTitle { get; internal set; }
191	william	125	public string Description { get; internal set; }
192
193	william	126
194	william	121	}
195	william	120	public ProgramList() { }
196	william	128	//public object ConvertObjectData(object source) { return this.ConvertData(source); }
197			//public IProgramDefinitionList ConvertData(object source)
198			//{
199			// if (source.GetType() != typeof(ProgramDefinitionList)) { throw new InvalidCastException(string.Format("Cannot cast: '{0}' to '{1}'", source.GetType().Name, typeof(ProgramDefinitionList).Name)); }
200			// //if (type != typeof(IProgramDefinitionList)) { throw new InvalidCastException(string.Format("Cannot cast: '{0}' to '{1}'", type.Name, typeof(IProgramDefinitionList).Name)); }
201			// IProgramDefinitionList t = (source as IProgramDefinitionList);
202			// return t;
203			//}
204			/// <summary>
205			///
206			/// </summary>
207			/// <param name="type"></param>
208			/// <returns></returns>
209			public object CreateBindableDataSource(out Type type)
210	william	120	{
211	william	128	type = typeof(IProgramDefinitionList);
212	william	120	object bindable = new object();
213	william	126	ProgramDefinitionList list = new ProgramDefinitionList();
214	william	121
215	william	122	foreach (var t in this)
216			{
217			try
218			{
219			ProgramDefintion definition = new ProgramDefintion();
220	william	123	string ChannelId = t.MetaData[XMLTVConstants.Programs.ProgramChannelId].ToString();
221			//definition.ChannelId = ChannelId;
222	william	121
223	william	122	var channels = XMLTV.GetChannels();
224			if (channels != null)
225			{
226	william	123	var channel = channels.Find(p => p.Id == ChannelId);
227	william	122	if (channel != null)
228			{
229	william	137	var channelname = channel.MetaData[XMLTVConstants.Channels.ChannelDisplayName].FirstOrDefault().Value.ToString();
230			var split = channelname.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
231			definition.ChannelNumber = Convert.ToInt32(split.First());
232			definition.ChannelName = string.IsNullOrEmpty(split.Last()) ? string.Empty : split.Last().ToString();
233
234	william	122	}
235			else
236			{
237	william	137	definition.ChannelNumber = 0;
238	william	122	}
239			}
240			else
241			{
242	william	137	definition.ChannelNumber = 0;
243	william	122	}
244			definition.Start = (DateTime)t.MetaData[XMLTVConstants.Programs.ProgramStart];
245			definition.Stop = (DateTime)t.MetaData[XMLTVConstants.Programs.ProgramStop];
246			definition.Description = t.MetaData[XMLTVConstants.Programs.ProgramDescription].ToString();
247			definition.Title = t.MetaData[XMLTVConstants.Programs.ProgramTitle].ToString();
248			definition.SubTitle = t.MetaData[XMLTVConstants.Programs.ProgramSubTitle].ToString();
249			list.Add(definition);
250			}
251			catch (Exception ex) { throw ex; }
252			}
253	william	123
254	william	126	list = new ProgramDefinitionList(list.OrderBy(s => s.Start).ToList());
255	william	123
256	william	122	bindable = list;
257	william	120	return bindable;
258			}
259			}
260			public class ExtraList : List<IExtraMetaData>, IDataSourceBindable
261			{
262	william	121
263	william	120	public ExtraList() { }
264	william	128	/// <summary>
265			///
266			/// </summary>
267			/// <param name="type"></param>
268			/// <returns></returns>
269			public object CreateBindableDataSource(out Type type)
270	william	120	{
271	william	128	type = typeof(object);
272	william	124	throw new NotImplementedException("Conversion of Extra MetaData to a bindable datasource has not been implemented.");
273			//object bindable = new object();
274			//return bindable;
275	william	120	}
276	william	128	//public object ConvertObjectData(object source) { return source; }
277			//public object Convert(object source)
278			//{
279			// throw new NotImplementedException("Conversion of Extra MetaData to a bindable datasource has not been implemented.");
280			//}
281	william	120	}
282			}