response.cookies problem

[yaniv]

I"m trying to read a cookie from the clinet machine using the code:

 

If not Request.Cookies("shoresh")("newmasinblogs") is nothing Then

If Request.Cookies("shoresh")("newmasinblogs") = "כן" Then

massagenum.Text = dataset.Tables("massages").Rows.Count

CheckBox1.Checked = True

End If

End If

 

the problem is that i get error massege:

"Object reference not set to an instance of an object."

 

i just can't solve the problem,

 

i tried to rewrite the cookies, i tried to set it to nothing and then to rewrite it... nothing working.

 

do somebody knows what the problem is?

[bob01900]

Try changing the first line to the following:

 

If Not Request.Cookies("shoresh") Is Nothing AndAlso Request.Cookies("shoresh")("newmasinblogs") Is Nothing Then

 

Not sure if this helps.

[PlausiblyDamp]

Does the dataset and the Table "massages" exist? IF so what is the value of dataset.Tables("massages").Rows.Count if you step through the code in the debugger?

[yaniv]

it is more then 0,

 

it's 3 or 4.

 

i get the error massage even in the first checking of the cookies... (if request.cookies... is nothing....)

[yaniv]

may be when i set the cookies to nothing i caused a problem?

 

i tried to import "server.web.httpcookies",

 

it is just not working!!!

[PlausiblyDamp]

How about if you did

If (not Request.Cookies("shoresh") is nothing) andalso (not Request.Cookies("shoresh")("newmasinblogs") is nothing) Then
   If Request.Cookies("shoresh")("newmasinblogs") = "כן" Then
       massagenum.Text = dataset.Tables("massages").Rows.Count
       CheckBox1.Checked = True
   End If
End If

[yaniv]

that did it!!!

 

thanks a lot, both.

 

just can't understand the different.... oh, that machines. :)

[PlausiblyDamp]

in your original code

If not Request.Cookies("shoresh")("newmasinblogs") is nothing

it will try to evaluate Cookies("shoresh")("newmasinblogs") but if Cookies("shoresh") is nothing then it will fail, doing it in two stages makes sure both parts aren't nothing.