how to assign QueryString value to a variable

[hurrem]

Hi I have a question: how to assign QueryString value to a variable, that should return unique ID of a user from ASPDBNET table. I used wrote this way: string id=Request.QueryString["UserID"]; but it doesn't assigns any value... :( Thank u

[Imran Khan Pathan]

string id=Request.QueryString["UserID"].ToString(); Best Regard Pathan

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[hurrem]

I'm sorry, but now it gives me this kind of exception: System.NullReferenceException was unhandled by user code Message="Object reference not set to an instance of an object." Source="App_Web_p-lbdwwh" Thank you

[enjoycrack]

what is the url? is this something like yourwebpage.aspx?Userid=??? << >>

8x Solutions Ltd

[hurrem]

yes

[enjoycrack]

Can you put the break point there and debug the code..to see if there is any element in querystring collection or not? << >>

8x Solutions Ltd

[hurrem]

Yes, it shows the value of UserID, but doesn't assign it

[Piyush Vardhan Singh]

use this one man Dim strcom As String strcom = Request.QueryString.GetValues("CID")(0)

Piyush Vardhan Singh Programmer TAS NewDelhi India

[hurrem]

Oh, Could you write it in C#, please, couse I'm not familiar with VB at all. Thanx

[Piyush Vardhan Singh]

string strcom = Request.QueryString.GetValues("CID")();

Piyush Vardhan Singh Programmer TAS NewDelhi India

[hurrem]

It shows me the error: Method name expected

[hurrem]

Oh my God, I'm sorry, I've found the error, Thank you guys!

[N a v a n e e t h]

Piyush Vardhan Singh wrote:

string strcom = Request.QueryString.GetValues("CID")();

:confused::confused:

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[Imran Khan Pathan]

It gives error becoz ur quiry string is null. check condition first if(Request.QueryString["id"]!=null) { code here } Best Regard Pathan

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