/// <summary>
/// Ctor
/// </summary>
/// <param name="source">source</param>
/// <param name="pageIndex">Page index</param>
/// <param name="pageSize">Page size</param>
public PagedList(IQueryable <T> source, GridPageModel pager)
{
if (!string.IsNullOrWhiteSpace(pager.sidx) && pager.sidx.Trim().Length > 0)
{
string sortingDir = string.Empty;
if (pager.sord.ToUpper().Trim() == "ASC")
{
sortingDir = "OrderBy";
}
else if (pager.sord.ToUpper().Trim() == "DESC")
{
sortingDir = "OrderByDescending";
}
//ParameterExpression param = Expression.Parameter(typeof(T), sortExpression);
//PropertyInfo pi = typeof(T).GetProperty(sortExpression);
//Type[] types = new Type[2];
//types[0] = typeof(T);
//types[1] = pi.PropertyType;
//Expression expr = Expression.Call(typeof(Queryable), sortingDir, types, source.Expression, Expression.Lambda(Expression.Property(param, sortExpression), param));
//source = source.AsQueryable().Provider.CreateQuery<T>(expr);
source = source.OrderBy(pager.sidx + " " + pager.sord);
}
int total = source.Count();
this.TotalCount = total;
this.TotalPages = total / pager.rows;
if (total % pager.rows > 0)
{
TotalPages++;
}
this.PageSize = pager.rows;
this.PageIndex = pager.page;
this.AddRange(source.Skip((pager.page - 1) * pager.rows).Take(pager.rows).ToList());
}
/// <summary>
/// Ctor
/// </summary>
/// <param name="source">source</param>
/// <param name="pageIndex">Page index</param>
/// <param name="pageSize">Page size</param>
public PagedList(List <T> source, GridPageModel pager)
{
var query = source.AsQueryable();
if (pager.sidx.Trim().Length > 0)
{
string sortingDir = string.Empty;
if (pager.sord.ToUpper().Trim() == "ASC")
{
sortingDir = "OrderBy";
}
else if (pager.sord.ToUpper().Trim() == "DESC")
{
sortingDir = "OrderByDescending";
}
ParameterExpression param = Expression.Parameter(typeof(T), pager.sidx);
PropertyInfo pi = typeof(T).GetProperty(pager.sidx);
Type[] types = new Type[2];
types[0] = typeof(T);
types[1] = pi.PropertyType;
Expression expr = Expression.Call(typeof(Queryable), sortingDir, types, query.Expression, Expression.Lambda(Expression.Property(param, pager.sidx), param));
query = query.AsQueryable().Provider.CreateQuery <T>(expr);
}
TotalCount = query.Count();
TotalPages = TotalCount / pager.rows;
if (TotalCount % pager.rows > 0)
{
TotalPages++;
}
this.PageSize = pager.rows;
this.PageIndex = pager.page;
this.AddRange(query.Skip((pager.page - 1) * pager.rows).Take(pager.rows).ToList());
}
