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ExecuteReader: Connection property has not been initialized.

Using vb.net 2005 - I just need to run a quick query...and return the results.
I have the query defined in Access (2003), so if it works to just execute that, I'm okay with that route as well...
Here's my code:

Dim strSQL As String = "SELECT EntryDate, UserName, IIf(Decision=True,'gratned','denied') AS Permitted, Amount FROM tblHistory WHERE ShareName=[@ShareName];"
Dim sConStr As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=\\*****\*****\tsset.mdb;" 'server data masked

Dim con As OleDbConnection = New OleDbConnection(sConStr)
con.Open()
Dim ShareParm As New OleDbParameter
With ShareParm  'I've not used parameters before, so maybe I didn't set this up correctly?
  .ParameterName = "@ShareName"
  .OleDbType = OleDbType.VarChar
  .Size = 50
  .Value = txtShare.Text
End With

Dim cmd As OleDbCommand = New OleDbCommand(strSQL)
cmd.Parameters.Add(ShareParm)

Dim dr As OleDbDataReader = cmd.ExecuteReader  ' <<<  This is where it bombs with the error in the title

While dr.Read
   ....
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sirbounty
Asked:
sirbounty
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1 Solution
 
SanclerCommented:
Add

cmd.Connection = con

after

Dim cmd As OleDbCommand = New OleDbCommand(strSQL)

Roger
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sirbountyAuthor Commented:
Yay!  It's Roger (aka, Mr. Patience)  :^)
Let me give that a shot...thanx.
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sirbountyAuthor Commented:
I got a ContextSwitchDeadlock (oh my! )
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sirbountyAuthor Commented:
Hmm - worked that time (I was stepping before)...but when it gets to the dr.read section, it skips right over, as if it's not 'read' anything...any idea (or does this take us outside of the scope of the original question?)
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SanclerCommented:
Turn this

"SELECT EntryDate, UserName, IIf(Decision=True,'gratned','denied') AS Permitted, Amount FROM tblHistory WHERE ShareName=[@ShareName];"

into this

"SELECT EntryDate, UserName, IIf(Decision=True,'gratned','denied') AS Permitted, Amount FROM tblHistory WHERE ShareName = ?;"

or even this

"SELECT EntryDate, UserName, IIf(Decision=True,'gratned','denied') AS Permitted, Amount FROM tblHistory WHERE ShareName = ?"

OleDb uses ? rather than names as placeholders and then applies the parameters in the ORDER in which they are referred to rather than using their NAMES.

Roger
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SanclerCommented:
And is 'gratned' intended to be 'granted'?  Not that that should affect operation ;-)

Roger
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sirbountyAuthor Commented:
No it doesn't - and I've flipflopped that numerous times (because in the Access query, it's misspelled...I keep copying from that and then updating it in my code...haha) - but thanx for noticing...
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sirbountyAuthor Commented:
Hmm - nope, neither work.
Since you've obviously solved the question as stated, I'll open this in a new one...(hoping that you'll help me there as well! :^)
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sirbountyAuthor Commented:
http://www.experts-exchange.com/Q_22468189.html if you're interested.
Thanx Roger. :^)
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sirbountyAuthor Commented:
<smack> - I was testing this in my form_load...so my txtShare was empty! lol...
Thanx Roger
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