数据库操作用的是LINQ，想用DataList进行分页，不知道该怎么写，还有，顺带问一下，泛型IList<>能直接用(DataTable)强制转换的嘛？求教
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linq分页本来就很简单啊 里面有个wake和skip的方法可以解决你分页的问题
还有想用datatable来转换其实是可以了，要你相应的数据库的实体类
，具体转换可以看
- C# code
#region DataTable To List/Model /// <summary> /// DataTable To List /// </summary> /// <typeparam name="TType">object type</typeparam> /// <param name="dt">DataTable</param> /// <returns>return a List Model type</returns> public static List<T> DataTableToObjectList<T>(DataTable dt) where T : new() { DataRowCollection drc = dt.Rows; int columncount = drc.Count; List<T> result = new List<T>(); //declare the generic type of return Type type = typeof(T); PropertyInfo[] propertys = type.GetProperties(BindingFlags.IgnoreCase|BindingFlags.Instance|BindingFlags.Public|BindingFlags.SetProperty); //get the collections of the model foreach (DataRow r in drc) { result.Add(DataRowToObjectModel<T>(r, propertys)); } return result; } /// <summary> /// DataRow To a Model /// </summary> /// <typeparam name="T">the type of Model</typeparam> /// <param name="r">DataRow</param> /// <param name="propertys">the object to Model</param> /// <returns>return a Model Type</returns> private static T DataRowToObjectModel<T>(DataRow r, PropertyInfo[] propertys) where T : new() { T t = new T(); for (int i = 0; i < propertys.Length; i++) { object obj = r[propertys[i].Name]; if (obj != null) { if (propertys[i].PropertyType == typeof(int)) propertys[i].SetValue(t, PublicMethod.GetInt(obj), null); if (propertys[i].PropertyType == typeof(string)) propertys[i].SetValue(t, obj.ToString(), null); if (propertys[i].PropertyType == typeof(DateTime)) propertys[i].SetValue(t, PublicMethod.GetDateTime(obj), null); } } return t; } #endregion
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泛型IList<>不能直接用(DataTable)强制转换、IList<>是以键值对的形式存在的。
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int pageCount;
int currentPage = 1;
DataView objView = dt.DefaultView; //表示自定义视图
PagedDataSource pds = new PagedDataSource();//表示实例化 分页
pds.DataSource =objView;
pds.AllowPaging = true;允许分页
pds.PageSize = 4;
pageCount = pds.PageCount;//获取页总数
this.Label4.Text = Convert.ToString(pageCount);
pds.CurrentPageIndex = currentPage - 1;
this.Label2.Text = Convert.ToString(currentPage);
this.DataList1.DataSource = pds;
this.DataList1.DataBind();
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private void bind(int n, int m)//举个例子：用linq读取数据库中第n页的前m条记录
{
if (n < 0 || n > count)
return;
DataClassesDataContext dc = new DataClassesDataContext("server=.; integrated security=true;database=url");
var source = (from temp in dc.Class1
orderby temp.id
select new
{