如下:
DataView str;
str=(DataView)Cache["mycache"];
if(str == null)
{
SqlConnection sql=new SqlConnection(ConfigurationSettings.AppSettings["connectionString"]);
SqlDataAdapter com=new SqlDataAdapter(ConfigurationSettings.AppSettings["Employee"],sql);
DataSet ds=new DataSet();
com.Fill(ds,"Employee");
str=new DataView(ds.Tables["Employee"]);
Cache["mycache"]=str;
Response.Write("从表");
}
else
{
Response.Write("从缓存");
}
DataGrid1.DataSource=str;
DataGrid1.DataBind();
我想添加一段设置缓存的持续时间的代码,请问在这段代码的什么地方添加????
代码应怎么写????