public static IQueryable <T> dtSelect <T>(this IQueryable <T> source, NameValueCollection request, params Expression <Func <T, object> >[] selects)
{
string key = RequestKey <T>(request);
RequestDTSelects.Add(key, selects);
return(source);
}
public static IQueryable <T> dtSelect <T>(this IQueryable <T> source, NameValueCollection request, params string[] selects)
{
string key = RequestKey <T>(request);
var paramExpression = Expression.Parameter(typeof(T), "val");
PropertyInfo[] _properties = selects.Select(s => typeof(T).GetProperty(s)).ToArray();
Expression <Func <T, object> >[] searches = _properties.Select(p => Expression.Lambda <Func <T, object> >(Expression.Convert(Expression.Property(paramExpression, p), typeof(object)), paramExpression)).ToArray();
RequestDTSelects.Add(key, searches);
return(source);
}
