解决方法的实现 以上分析过了之后，我们来看如何实现他： class DataInfo：这个类用于保存数据状态，一般而言，也就是每个DataGrid对应一个：[Serializable()] public class DataInfo { private string dataName; private Hashtable searchParams; private Hashtable otherParams; private int currentPage; private string sortExpression; private string itemID; public DataInfo(string dataName) { this.dataName = dataName; } /// <summary> /// 数据名 /// </summary> public string DataName { get { return dataName; } } /// <summary> /// 查询参数 /// </summary> public Hashtable SearchParams { get { return searchParams; } set { searchParams = value; } } /// <summary> /// 获取其他参数 /// </summary> public Hashtable OtherParams { get { return otherParams; } set { otherParams = value; } } /// <summary> /// 获取当前页 /// </summary> public int CurrentPage { get { return currentPage; } set { currentPage = value; } } /// <summary> ///获取排序方式 /// </summary> public string SortExpression { get { return sortExpression ;} set { sortExpression = value; } } /// <summary> /// 获取要显示在当前页的项的ID /// </summary> public string ItemID { get { return itemID; } set { itemID = value; } } } class DataInfoList：这个类包装承载DataInfo的动态数组，限定数组输入输出的数据类型[Serializable()] public class DataInfoList { private ArrayList dataInfoList = new ArrayList(); public DataInfo this[int index] { get { return (DataInfo)dataInfoList[index]; } set { if (((DataInfo)dataInfoList[index]).DataName == value.DataName || this[value.DataName] == null) { dataInfoList[index] = value; } else { throw new Exception("There have a DataInfo used this Name yet!"); } } } public DataInfo this[string dataName] { get { for (int i = 0; i < dataInfoList.Count; i++) { if (this[i].DataName == dataName) { return this[i]; } } return null; } set { for (int i = 0; i < dataInfoList.Count; i++) { if (this[i].DataName == dataName) { this[i] = value; return; } } this.Add(value); } } public void Remove(DataInfo value) { dataInfoList.Remove(value); } public void Remove(string dataName) { DataInfo dataInfo = this[dataName]; if (dataInfo != null) { dataInfoList.Remove(dataInfo); } } public bool Contains(DataInfo value) { return dataInfoList.Contains(value); } public bool Contains(string dataName) { DataInfo datainfo = this[dataName]; if (datainfo != null) { return true; } return false; } public void Clear() { dataInfoList.Clear(); } public int Add(DataInfo value) { if (this[value.DataName] == null) { return dataInfoList.Add(value); } else { throw new Exception("There have a DataInfo used this Name yet!"); } } public int Count { get { return dataInfoList.Count; } } } interface IPageInfo：这个接口用在页面中，以实现页面间的数据通信。public interface IPageInfo { /// <summary> /// 页面名 /// </summary> string PageName { get; } /// <summary> /// 获取数据信息 /// </summary> DataInfoList DataInfos { get; } /// <summary> /// 获取其他参数 /// </summary> Hashtable OtherParams { get; } }
（未完待续）