Question

当我在网页上停留超过15分钟后，我收到此错误消息。

我不知道原因。我想也许会议时间不够。我改变了会话时间，但它仍然无法正常工作。

有人帮我这个吗？

谢谢

Server Error in '/' Application.

Object reference not set to an instance of an object.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Source Error: 

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace: 


[NullReferenceException: Object reference not set to an instance of an object.]
   Aydan_Kayserili_Tez_Anket_Calismasi._default.ileri_Click(Object sender, EventArgs e) +1159
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +9692746
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +108
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +12
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +15
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +35
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +3562

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.6.1087.0

你调用的对象是空的。我该如何解决？

0 个答案: