我正在尝试从视图状态中获取字典。但是我收到一个错误,说它没有被标记为序列化。
var groupByCountDictionary = from supplier in supplierDirectoryList
group supplier by supplier.ProductCategory into grp
select new
{
groupName = grp.Key,
count = grp.Select(x => x.ProductCategory).Count()
};
ViewState["GroupbyCount"] = groupByCountDictionary;
Dictionary<string,int> groupByDictionary = (Dictionary<string,int>) ViewState["GroupbyCount"];
然后在回发后的另一种方法中,我试图从上面的视图状态中获取字典,这会导致错误。