public class ClientQuery : Page
{
private void Page_Load(object sender, System.EventArgs e)
{
if (!IsPostBack){
StructClientQry struClientQry = AppPublicLib.getStructClientQry(Cache);
}
}
} public class AppPublicLib {
public static StructClientQry getStructClientQry(Cache cch) {
StructClientQry struClientQry = (StructClientQry) cch[KEY_STRUCLIENTQRY];//出错,取不到值
}异常详细信息: System.NullReferenceException: 未将对象引用设置到对象的实例。为什么?
{
private void Page_Load(object sender, System.EventArgs e)
{
if (!IsPostBack){
StructClientQry struClientQry = AppPublicLib.getStructClientQry(Cache);
}
}
} public class AppPublicLib {
public static StructClientQry getStructClientQry(Cache cch) {
StructClientQry struClientQry = (StructClientQry) cch[KEY_STRUCLIENTQRY];//出错,取不到值
}异常详细信息: System.NullReferenceException: 未将对象引用设置到对象的实例。为什么?
{
String pwd="User Id="+m_User+";Password="+m_Pwd+";";
HttpContext context = HttpContext.Current;
string connectionString = (string)context.Cache["ConnectionString"];
if (connectionString== null)
{
connectionString=ConfigurationSettings.AppSettings["ConnectionString"] + pwd;
context.Cache["ConnectionString"] = connectionString;
}
return connectionString;
}