Error connecting to DB from VB to Access - vb.net

I have an Access project where I want a label to be showed when a form is opened only if a query returns a result.
I have the following code:
Private Sub Form_Load()
Dim stSQL As String
Dim db As DAO.Database
Dim rs As DAO.Recordset
Set db = DBEngine.Workspaces(0).Databases(0)
Dim cn As DAO.Connection
Set cn = DAO.Connection
cn.Provider = "Microsoft.Jet.OLEDB.4.0"
cn.Open stdbName
stSQL1 = "SELECT * FROM tbl_lessons"
Set rs = db.OpenRecordset(stSQL1, dbOpenDynaset)
If (rs Is Not Nothing) Then
If (rs.GetRows() > 0) Then
lbl_alert.Visible = True
Else
lbl_alert.Visible = False
End If
End If
When I try to open the form I'm getting the following error:
Compile error:
Method or data member not found
I'm using Access 2007 with VB7
Can someone please help?

Note - when compile errors happen in VBA, a line of code is always highlighted. Looking carefully at the highlighted line will help you figure out what you did wrong. Also note that you should always compile your code before attempting to run the form. (open the "Debug" menu > click "Compile VBAProject" or the like.)
There appears to be a bunch of problems, and you'll probably have to address them one at a time. just keep fixing issues and re-compiling your code.
1cn.Open stdbName1
--> stdbname is not defined anywhere in the code you showed us.
Dim stSQL As String
--> You defined your connection string as stSQL but in your code you used: stSQL1 = "...". Fix your variable name.

Related

Setting field 'InputMask' properties programmatically

I have an Access database divided into front and back ends.
I need to modify the value of a property associated to one of the fields in a table programmatically. I do remember achieving something similar years ago, but that was for forms.
It seems that the properties of a table can only be set at design time; any attempt to modify the values using code (myField.Properties("InputMask").Value = "000000") causes an error.
All in all, there are about 40 or 50 tables in a batch of roughly 80 that have a particular type of field that has to be changed, so I'd rather do this using code than manually. Could anyone suggest a method for doing this using VBA, please?
Presently I've looked at dropping and recreating the field using CurrentDb.Execute sqlString, but I'd like to retain the InputMask property if at all possible.
The original database is a 2002/3 format, but I'm editing this in Access 2010.
I got the following code to work. It will change the InputMask of the specified Table and Field....
Option Compare Database
Option Explicit
Sub Test_It()
Dim WGD
WGD = Resize_And_AddInputMask("Table3", "SomeNbr")
End Sub
' Modified version of code found at: http://www.tek-tips.com/viewthread.cfm?qid=1708626
Public Function Resize_And_AddInputMask(ByVal someTableName As String, ByVal someZCField As String)
Dim db As DAO.Database
Dim td As DAO.TableDef
Dim fd As DAO.Field
Dim prp As DAO.Property
Set db = CurrentDb
Set td = db.TableDefs(someTableName)
Set fd = td.Fields(someZCField)
fd.Properties("InputMask") = "000099"
fd.Properties.Refresh
db.TableDefs.Refresh
Set prp = Nothing
Set fd = Nothing
Set td = Nothing
Set db = Nothing
End Function

Too few parameters in OpenRecordset code

I have two sets of code, that are the same I just change variables to another set that exist and now with the ones I changed I get an error saying "Run-time error '3061': Too few parameters. Expected 6."
This is the changed code:
Dim rec As Recordset
Dim db As Database
Dim X As Variant
Set db = CurrentDb
Set rec = db.OpenRecordset("UnitMoreInfoQ")
Const msgTitle As String = "Open Explorer"
Const cExplorerPath As String = "C:\WINDOWS\EXPLORER.EXE"
Const cExplorerSwitches As String = " /n,/e"
cFilePath = rec("ProjFilePath")
It highlights this line:
Set rec = db.OpenRecordset("UnitMoreInfoQ")
This is the first code:
Dim rec As Recordset
Dim db As Database
Dim X As Variant
Set db = CurrentDb
Set rec = db.OpenRecordset("ProjectMoreInfoQ")
Const msgTitle As String = "Open Explorer"
Const cExplorerPath As String = "C:\WINDOWS\EXPLORER.EXE"
Const cExplorerSwitches As String = " /n,/e"
cFilePath = rec("ProjFilePath")
As you can see, the line has the same amount of parameters:
Set rec = db.OpenRecordset("ProjectMoreInfoQ")
This has gotten me quite confused for awhile because of this. How do I fix this error?
I didn't get the same result as you when testing your db, and I still don't understand the difference. However, maybe we can still get you something which works in spite of my confusion.
The query contains 6 references to form controls, such as [Forms]![WorkOrderDatabaseF]![Text71]. Although you're certain that form is open in Form View when you hit the "too few parameters" error at db.OpenRecordset("UnitMoreInfoQ"), Access doesn't retrieve the values and expects you to supply them.
So revise the code to supply those parameter values.
Dim rec As DAO.Recordset
Dim db As DAO.database
Dim prm As DAO.Parameter
Dim qdf As DAO.QueryDef
Dim X As Variant
Set db = CurrentDb
'Set rec = db.OpenRecordset("UnitMoreInfoQ")
Set qdf = db.QueryDefs("UnitMoreInfoQ")
For Each prm In qdf.Parameters
prm.value = Eval(prm.Name)
Next
Set rec = qdf.OpenRecordset(dbOpenDynaset) ' adjust options as needed
I'm leaving the remainder of this original answer below in case it may be useful for anyone else trying to work through a similar problem. But my best guess is this code change will get you what you want, and it should work if that form is open in Form View.
Run this statement in the Immediate window. (You can use Ctrl+g to open the Immediate window.)
DoCmd.OpenQuery "UnitMoreInfoQ"
When Access opens the query, it will ask you to supply a value for the first parameter it identifies. The name of that parameter is included in the parameter input dialog. It will ask for values for each of the parameters.
Compare those "parameter names" to your query's SQL. Generally something is misspelled.
Using the copy of your db, DoCmd.OpenQuery("UnitMoreInfoQ") asks me for 6 parameters.
Here is what I see in the Immediate window:
? CurrentDb.QueryDefs("UnitMoreInfoQ").Parameters.Count
6
for each prm in CurrentDb.QueryDefs("UnitMoreInfoQ").Parameters : _
? prm.name : next
[Forms]![WorkOrderDatabaseF]![Text71]
[Forms]![WorkOrderDatabaseF]![ClientNameTxt]
[Forms]![WorkOrderDatabaseF]![WorkOrderNumberTxt]
[Forms]![WorkOrderDatabaseF]![TrakwareNumberTxt]
[Forms]![WorkOrderDatabaseF]![WorkOrderCompleteChkBx]
[Forms]![WorkOrderDatabaseF]![WorkOrderDueDateTxt]
Make sure there is a form named WorkOrderDatabaseF open in Form View when you run this code:
Set rec = db.OpenRecordset("UnitMoreInfoQ")
Does the [UnitMoreInfoQ] query execute properly on its own? If you mistype a field in access it will treat that field as a parameter.
ProjectMoreInfoQ and UnitMoreInfoQ are different queries... it sounds like one takes 6 parameters and the other doesn't. Look at the queries in Access and see if either have parameters defined.

Excel drop down values from a SQL Server source

I am trying to get a cell drop-down values in Excel from a SQL Server. I don't want to use the method of putting all the data to another sheet and the use data validation to control the drop down values. That always give my a bunch of empty lines towards the end since I want to make sure I have room for any addition in the DB.
Is there a way to retrieve the drop-down values directly from SQL Server? Using a statement something like:
Select name from employees
Thanks for your help...
Use ADODB to retrieve the values you want, and use the retrieved values to populate a dropdown shape in Excel which you can create dynamically.
In a similar situation, since the source data was basically static, I populated a global array from an ADODB recordset when the application started and used that array when populating the items in the dropdown. Here's a snippet of that code:
Dim InstrumentIDs() As String
Dim InstrumentIDReader As Integer
Dim InstrumentIDCount As Integer
Public PositionRange As String
Public Sub GetInstrumentIDs()
'
'Populate InstrumentIDs array from current contents of Instrument table in EMS database
'
Dim conn As New ADODB.Connection
Dim rs As New ADODB.Recordset
Dim sql As String
Dim loader As Integer, sn As String
InstrumentIDReader = 0
On Error GoTo GetInstrumentError
conn.ConnectionString = "Provider=sqloledb; Data Source=myServer; Initial Catalog=myDatabase; User ID=myUser;Password=myPassword"
conn.Open
sql = "Select Count([SerialNo]) As [Number] From [Instrument]"
rs.Open sql, conn, adOpenStatic
InstrumentIDCount = CInt(rs![Number])
ReDim InstrumentIDs(InstrumentIDCount - 1)
rs.Close
sql = "Select [SerialNo] From [Instrument] Order By [SerialNo]"
rs.Open sql, conn, adOpenForwardOnly
loader = 0
rs.MoveFirst
Do While Not rs.EOF
sn = CStr(rs![SerialNo])
InstrumentIDs(loader) = sn
loader = loader + 1
rs.MoveNext
Loop
rs.Close
conn.Close
Set rs = Nothing
Set conn = Nothing
Exit Sub
GetInstrumentError:
MsgBox "Error loading instruments: " & Err.Description
End Sub
You must set a reference to Microsoft ActiveX Data Objects m.n Library (latest version on my computer is 2.8) from Tools > References in VBA editor.
See article
http://www.thespreadsheetguru.com/blog/2014/5/14/vba-for-excels-form-control-combo-boxes for tips on how to manage dropdown boxes in Excel.
You can use the MS Query Wizard in Excel to store a query and use it's data any time.
This this link for details http://www.techrepublic.com/article/use-excels-ms-query-wizard-to-query-access-databases/

Runtime Error 3061 Help (ms access)

I've been wracking my brain trying to find what is wrong with this query and I just don't see it. I'm trying to open a record set and I keep getting runtime error 3061: "Too few parameters: Expected 1."
Here's my code...
Dim ansRs As Recordset
Dim qRs As Recordset
Dim ansQuery As String
Dim qQuery As String
Dim i As Integer
qQuery = "Select * From TrainingQuizQuestions Where TrainingQuizID = (Select TrainingQuiz.TrainingQuizID From TrainingQuiz Where QuizName = Forms!MainMenu!txtVidName);"
ansQuery = "Select * From TrainingQuizQuestAns"
Set qRs = CurrentDb().OpenRecordset(qQuery)
Set ansRs = CurrentDb().OpenRecordset(ansQuery)
I'm getting the error from the line "Set qRs = CurrentDb().OpenRecordset(qQuery)". I copied and pasted that query into access and ran it and it returned exactly what I want to get in my record set, yet when I run it in VBA I get the error. Am I missing something really simple? Any help would be greatly appreciated.
First ensured that your form is open, then put the form reference outside your quotes.
qQuery = "Select * From TrainingQuizQuestions Where TrainingQuizID = " _
& "(Select TrainingQuiz.TrainingQuizID From TrainingQuiz Where QuizName = '" _
& Forms!MainMenu!txtVidName) & "';"
The form value is not available to a recordset used in VBA.

Invalid Use of Property?

I am working with an Access database and it has a form and VBA behind it. It has been quite a while since I dabbled in VBA and my google-fu is failing me right now so bear with me.
I created a simple class, and I am getting a compile error:
Dim oRecordSet As ADODB.RecordSet
Public Property Get RecordSet() As ADODB.RecordSet
RecordSet = oRecordSet '' error here
End Property
Public Property Let RecordSet(ByVal val As ADODB.RecordSet)
RecordSet = val
End Property
I have a couple other identical properties (different names/variables, obviously) that compile just fine; their types are String and Integer.
What am I missing? Thanks!
Also a side note, when I am coding the intellisense shows ADODB.Recordset, but on autoformat (carriage return, compile, etc) it changes it to ADODB.RecordSet. Need I be worried?
It should be:
Public Property Get RecordSet() As ADODB.RecordSet
Set RecordSet = oRecordSet '' error here
End Property