/// <summary>
/// 前台类型获取
/// </summary>
/// <typeparam name="T"></typeparam>
/// <typeparam name="V"></typeparam>
/// <param name="sourse"></param>
/// <param name="selectAdd">优先赋值项目</param>
/// <returns></returns>
public static IQueryable <V> SelectTo <T, V>(this IQueryable <T> sourse, System.Linq.Expressions.Expression <Func <T, V> > selectAdd = null)
where V : class, new()
where T : class, new()
{
System.Linq.Expressions.Expression <Func <T, V> > select = SearchClass <T, T, V> .GetSelectLambda(selectAdd);
return(sourse.Select(select));
}
/// <summary>
/// 查询条件
/// </summary>
/// <typeparam name="T">数据源</typeparam>
/// <typeparam name="S">查询实体</typeparam>
/// <param name="sourse"></param>
/// <param name="s1"></param>
/// <returns></returns>
public static IQueryable <T> WhereFrom <T, S>(this IQueryable <T> sourse, S s1, System.Linq.Expressions.Expression <Func <T, bool> > whereAdd = null)
where T : class, new()
where S : class
{
System.Linq.Expressions.Expression <Func <T, bool> > where = SearchClass <T, S, T> .GetWhereLambda(s1, whereAdd);
return(sourse.Where(where));
}
public static IQueryable <V> Search_Query <T, S, V>(this IQueryable <T> sourse, System.Linq.Expressions.Expression <Func <T, V> > selectAdd, S s1)
where V : class, new()
where S : class
where T : class, new()
{
IQueryable <T> whereQuery = null;
if (s1 != null)
{
System.Linq.Expressions.Expression <Func <T, bool> > where = SearchClass <T, S, V> .GetWhereLambda(s1);
whereQuery = whereQuery.Where(where);
}
System.Linq.Expressions.Expression <Func <T, V> > select = SearchClass <T, S, V> .GetSelectLambda(selectAdd);
return(sourse.Select(select));
}
