cache问题,头痛!向高手请教
我在一个类里写cache
using System;
using System.Web.UI;
using System.Web.Caching;
using System.Collections;
using System.Data;
public class test{
private Cache cache1;
public test()
{
cache1=new Cache();
}
…………
try
{
CacheDependency c1=new System.Web.Caching.CacheDependency("d:\ab.txt");
cache1.Insert("xyz",DataSet1,c1);//把dataset保存,结果就这句出错,检查发现DataSet1好像没有问题呀,难道c1有问题?
}
catch( Exception e)//e说:Object reference not set to an instance of an object.
{
}
}
请高手指点!!