Telerik XML 数据源绑定的问题

Telerik GridView 默认的 XElement 数据源的直接绑定,会导致内置的sort, filter ,group等功能无法使用.

原因在于Telerik GridView的那些功能是根据数据类型实现的,而XElement绑定在数据源本身是无法区分类型的。

一个解决方案是绑定的属性转换为具体的 一个个属性,也就是Telerik 官网所谓的various datasource当中XML的绑定方式

另外一个比较适合实际项目的解决方案是 讲数据源转变为Dynamic数据源,然后将ItemSource绑定到这个Dynamic数据源当中。
别的方式或许也有,我没试验出来.

代码如下:

 public void LoadXmlData(XElement data)

        {

            if (data != null)

            {

                this.Items = new ObservableCollection<dynamic>(from element in data.Elements() select new DataRow(ToDictionary(element), element));

            }

        }

   private IDictionary<string, object> ToDictionary(XElement element)

        {

            var dict = new Dictionary<string, object>();

            foreach (var e in element.Elements())

            {

                dict.Add(e.Name.LocalName, e.Value);

            }



            return dict;

        }  

添加一个转换Dynamic的类:

 public class DataRow : DynamicObject, INotifyPropertyChanged

    {

        readonly IDictionary<string, object> data;



        //public XElement ItemXml { get; set; }



        public DataRow(IDictionary<string, object> source,XElement item)

        {

            data = source;

            //Item = item;

        }



        public override IEnumerable<string> GetDynamicMemberNames()

        {

            return data.Keys;

        }



        public override bool TryGetMember(GetMemberBinder binder, out object result)

        {

            result = this[binder.Name];



            return true;

        }



        public override bool TrySetMember(SetMemberBinder binder, object value)

        {

            this[binder.Name] = value;



            return true;

        }



        public object this[string columnName]

        {

            get

            {

                if (data.ContainsKey(columnName))

                {

                    return data[columnName];

                }



                return null;

            }

            set

            {

                if (!data.ContainsKey(columnName))

                {

                    data.Add(columnName, value);



                    OnPropertyChanged(columnName);

                }

                else

                {

                    if (data[columnName] != value)

                    {

                        data[columnName] = value;



                        OnPropertyChanged(columnName);

                    }

                }

            }

        }



        private void OnPropertyChanged(string propertyName)

        {

            if (PropertyChanged != null)

            {

                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));

            }

        }



        #region INotifyPropertyChanged Members



        public event PropertyChangedEventHandler PropertyChanged;



        #endregion

    }

  

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