mr_medhat
Posts: 16
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| Posted: 08/24/2006, 3:11 PM |
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Gentlemen ,
There is something wrong in the Codecharge documentation code about creating custom Session Variables :
It is :
VB.NET
'Button Button_DoLogin Event OnClick. Action Custom Code
Session("User_Name") = Settings.Connection1DataAccessObject.ExecuteScalar("SELECT User_Name FROM Users WHERE User_ID=" &
Settings.Connection1DataAccessObject.ToSql(DBUtility.UserId.ToString(), FieldType._Integer))
The part of ( ToSql ) Doesn’t return a value , and the browser gives the error :
(Exception Details: System.NullReferenceException: Object reference not set to an instance of an object)
If I replace the (ToSql) section with a specific value ( Ex. 1 ) I get the correct User_Name of the user with an ID of 1 .
I appreciate your help.
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mr_medhat
Posts: 16
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| Posted: 08/26/2006, 5:43 AM |
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After all the testing I made ,
1 ) If I put the Custom Code OnClick event before the login OnClick Event , Then , The problem lies in the fact that UserId is not already known before the actual login occur , so , DBUtility.UserId doesn’t return a thing !!!!
2) If I Put the Login event first , The redirecting to the referenced page occur before the Session Variable is initiated !!!!
Any Suggestions ?
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mr_medhat
Posts: 16
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| Posted: 08/26/2006, 6:17 AM |
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I Finally solved it  I just moved the custom code from the OnClike Event of the logon Button to the After Unload event of the page ) it’s working fine .
Here is the custom code in case anyone needs it :
Session("Variable_Name") = Settings.Connection1DataAccessObject.ExecuteScalar("SELECT Column_Name FROM Users WHERE User_ID ="& Settings.Connection1DataAccessObject.ToSql(DBUtility.UserId, FieldType._Integer))
All the best for everyone .
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