Problem injecting a VB parameter into a stored procedure (FireBird) - vb.net

Question

Everyone here has always been such great help, either directly or indirectly. And it is with grand hope that this, yet again, rings true.
For clarification sakes, the Stored Procedure is running under FireBird and the VB is of the .NET variety
I have a stored procedure (excerpt below, important bit is the WHERE)
select pn, pnm.description, si_number, entry_date, cmp_auto_key,
parts_flat_price, labor_flat_price, misc_flat_price, woo_auto_key,
wwt_auto_key
from parts_master pnm, wo_operation woo
where pn like :i_pn || '%'
and pnm.pnm_auto_key = woo.pnm_auto_key
into :pn, :description, :work_order, :entry_date, :cmp, :parts_price,
:labor_price, :misc_price, :woo, :wwt
I am trying to pass a parameter from a vb app, that uses the parameter I_PN, the code of which follows below (The variables for MyServer and MyPassword are determined form an earlier part of the code.)
Try
Dim FBConn As New FirebirdSql.Data.FirebirdClient.FbConnection()
Dim FBCmd As FirebirdSql.Data.FirebirdClient.FbCommand
Dim MyConnectionString As String
MyConnectionString = _
"datasource=" & MyServer & ";database=" & TextBox4.Text & "; & _
user id=SYSDBA;password=" & MyPassword & ";initial catalog=;"
FBConn = New FirebirdSql.Data.FirebirdClient. & _
FbConnection(MyConnectionString)
FBConn.Open()
FBConn.CreateCommand.CommandType = CommandType.StoredProcedure
FBCmd = New FirebirdSql.Data.FirebirdClient. & _
FbCommand("WIP_COSTS", FBConn)
FBCmd.CommandText = "WIP_COSTS"
FBConn.CreateCommand.Parameters. & _
Add("#I_PN", FirebirdSql.Data.FirebirdClient.FbDbType.Text). & _
Value = TextBox1.Text
Dim I_PN As Object = New Object()
Me.WIP_COSTSTableAdapter.Fill(Me.WOCostDataSet.WIP_COSTS, #I_PN)
FBConn.Close()
Catch ex As System.Exception
System.Windows.Forms.MessageBox.Show(ex.Message)
End Try
When I execute the VB.App and try to run the program, I get the following Error:
Dynamic SQL Error
SQL Error Code = -206
Column Unknown
I_PN
At Line 1, column 29
And I can't quite put my finger on what the actual problem is. Meaning, I don't know if my logic is incorrect on the VB side, or, on the Stored Procedure.
Any coding that is included is kludged together from examples I have found with various bits of code found during long sojourns of GoogleFu.
As anyone with more than a month or two of experience (unlike me) with VB can attest with merely a glance - my code is probably pretty crappy and not well formed - certainly not elegant and most assuredly in operational. I am certainly entertaining all flavors of advice with open arms.
As usual, if you have further questions, I will answer them to the best of my ability.
Thanks again.
Jasoomian

Answer 1

After a little rethinking and a bit more research, I finally got my code working..
Try
' Code for checking server location and required credentials
Dim FBConn As FbConnection
' Dim FBAdapter As FbDataAdapter
Dim MyConnectionString As String
MyConnectionString = "datasource=" _
& MyServer & ";database=" _
& TextBox4.Text & ";user id=SYSDBA;password=" _
& MyPassword & ";initial catalog=;Charset=NONE"
FBConn = New FbConnection(MyConnectionString)
Dim FBCmd As New FbCommand("WIP_COSTS", FBConn)
FBCmd.CommandType = CommandType.StoredProcedure
FBCmd.Parameters.Add("#I_PN", FbDbType.VarChar, 40)
FBCmd.Parameters("#I_PN").Value = TextBox1.Text.ToUpper
Dim FBadapter As New FbDataAdapter(FBCmd)
Dim dsResult As New DataSet
FBadapter.Fill(dsResult)
Me.WIP_COSTSDataGridView.DataSource = dsResult.Tables(0)
Dim RecordCount As Integer
RecordCount = Me.WIP_COSTSDataGridView.RowCount
Label4.Text = RecordCount
Catch ex As System.Exception
System.Windows.Forms.MessageBox.Show _
("There was an error in generating the DataStream, " & _
"please check the system credentials and try again. " &_
"If the problem persists please contact your friendly " &_
"local IT department.")
End Try
' // end of line
I had also thought that I would need to make changes to the actual stored procedure, but, this turned out to be incorrect.
The code may not be pretty, and I need to do more work in my TRY block for better error handling; but, it works.
Thanks to all who chimed in and helped me get on track.

Answer 2

Try changing this:
FBConn.CreateCommand.Parameters. & _
Add("#I_PN", FirebirdSql.Data.FirebirdClient.FbDbType.Text). & _
Value = TextBox1.Text
... to this:
FBCmd.Parameters.AddWithValue("#I_PN", TextBox1.Text)
Basically, you want to add stored procedure parameters to the Command object, not the Connection object.

Answer 3

Andreik,
Here is the entire stored Procedure. And our Firebird is Version 1.5.3, written with IbExpert version 2006.12.13, Dialect 3
Begin
For
select pn, pnm.description, si_number, entry_date, cmp_auto_key, parts_flat_price,
labor_flat_price, misc_flat_price, woo_auto_key, wwt_auto_key
from parts_master pnm, wo_operation woo
where pn like :i_pn || '%'
and pnm.pnm_auto_key = woo.pnm_auto_key
into :pn, :description, :work_order, :entry_date, :cmp, :parts_price,
:labor_price, :misc_price, :woo, :wwt
Do begin
labor_hours = null;
work_type = null;
parts_cost = null;
labor_cost = null;
ro_cost = null;
customer = null;
select company_name
from companies
where cmp_auto_key = :cmp
into :customer;
select work_type
from wo_work_type
where wwt_auto_key = :wwt
into :work_type;
select sum(sti.qty*stm.unit_cost)
from stock_ti sti, stock stm, wo_bom wob
where sti.wob_auto_key = wob.wob_auto_key
and sti.stm_auto_key = stm.stm_auto_key
and wob.woo_auto_key = :woo
and sti.ti_type = 'I'
and wob.activity <> 'Work Order'
and wob.activity <> 'Repair'
into :parts_cost;
select sum(sti.qty*stm.unit_cost)
from stock_ti sti, stock stm, wo_bom wob
where sti.wob_auto_key = wob.wob_auto_key
and sti.stm_auto_key = stm.stm_auto_key
and wob.woo_auto_key = :woo
and sti.ti_type = 'I'
and wob.activity = 'Repair'
into :ro_cost;
select sum(wtl.hours*(wtl.fixed_overhead+wtl.variable_overhead+wtl.burden_rate)),
sum(wtl.hours)
from wo_task_labor wtl, wo_task wot
where wtl.wot_auto_key = wot.wot_auto_key
and wot.woo_auto_key = :woo
into :labor_cost, :labor_hours;
suspend;
end
End
Hardcode - I responded in the comments to your suggestion.