如何检查会话变量中的值存储 [英] How can i check value store in session varible or not

问题描述

有人告诉我如何检查会话是否在存储值吗?

实际上，我正在使用第一次会话变量来存储数据表gridview，但是当用户插入第一行条目时，我不知道那是在我的网格中保存值或不是有效地，然后单击新行"按钮然后生成新行，但是上一步是可以的行值丢失.

建议如何检查?

谢谢

Hi,

anybody tell me how can i check session is storing value or not?

actully i am using first time session variable to store datatable gridview but do''t know that is saving value or not actully in my grid when user inser first row entry then it is ok when click on new row button then new row generate but previous row value lost.

Suggest how can i check it??

Thanks

推荐答案

如果您想检查变量是否存储在会话中，只需测试它是否为null(如先前发布的那样).尝试检查以下链接:
http://msdn.microsoft.com/en-us/library/ms972429.aspx [ ^ ]

Hi,

if you want to check whether variable is stored in session, just test it for null as was posted earlyer. try to check following link:
http://msdn.microsoft.com/en-us/library/ms972429.aspx[^]

in this article is session explained.

Abdul已经为您提供了简单的摘录，无论如何都要通过这个

从Session中存储和检索值 [

Already Abdul gave you easy snippet for you anyway go through this

Storing and Retrieving values from Session[^]

C#

if (Session["YourSessionName"] !=null)
{
}

VB.NET

VB.NET

If Not Session("YourSessionName") Is Nothing Then
End IF

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