abstractrecord.cs

一种.net实现ajax方法的类库

            {
                PropertyInfo pi = this.GetType().GetProperty(Name);
                if (pi == null)
                {
                    return null;
                }
                return pi.GetValue(this, null);
            }
            set
            {
                PropertyInfo pi = this.GetType().GetProperty(Name);
                if (pi == null)
                {
                    return;
                }

                pi.SetValue(this, PropertyConverter.Convert(value, pi.PropertyType), null);
                if (NotifyPropertyChangedHandlers.ContainsKey(Name))
                {
                    NotifyPropertyChangedHandlers[Name]();
                }
                FireChangeEvents();
            }
        }

        protected void FireChangeEvents()
        {
            if (OnChange != null)
                OnChange(this);
            if (changedRecordListeners.ContainsKey(this.GetType()))
                changedRecordListeners[this.GetType()](this);
        }

        public virtual int ComputeRecordWeight()
        {
            return 1;
        }

        virtual public ColumnInfo[] Fields
        {
            get
            {
                if (!ColumnInfoManager.TypeIsRegistered(this.GetType()))
                {
                    List<PropertyInfo> props = DiscoverDerivedProperties(this.GetType());
                    List<ColumnInfo> fs = new List<ColumnInfo>();
                    foreach (PropertyInfo pi in props)
                    {
                        ColumnInfo fi = new ColumnInfo();
                        fi.Name = pi.Name;
                        fi.Type = pi.PropertyType;
                        PropertyTypeAttribute pta = getPropertyTypeAttribute(pi);
                        if (pta != null)
                            fi.DataType = pta.Type;
                        else
                        {
                            fi.DataType = DataType.None;
                            if (TypeIsRecordList(fi.Type))
                                fi.DataType = DataType.RecordList;
                            else
                                fi.DataType = DataType.None;
                        }
                        fs.Add(fi);
                    }
                    ColumnInfoManager.RegisterColumns(this.GetType(), fs.ToArray());
                }
                return ColumnInfoManager.RequestColumns(this.GetType());
            }
			set
			{
				throw new System.NotImplementedException("That feature is not implemented.");
			}
        }

        public virtual Type GetFieldTypeFromName(string name)
        {
            return GetFieldInfoFromName(name).Type;
        }

        public ColumnInfo GetFieldInfoFromName(string name)
        {
            foreach (ColumnInfo fi in Fields)
                if (fi.Name == name)
                    return fi;
            return null;
        }

        virtual public string toJSON(JSON.Type transportType, List<DataGridColumn> columns)
        {
            string open = "[", close = "]";

            if (transportType == JSON.Type.Object)
            {
                open = "{";
                close = "}";
            }

            List<string> props = new List<string>();
            foreach (DataGridColumn col in columns)
            {
                string val;
                if (this[col.Name] != null)
                {
                    val = JSON.PrepareValueForJSON(this[col.Name]);
                }
                else
                {
                    val = "null";
                }

                switch (transportType)
                {
                    case JSON.Type.Object: