RE LINK DATASOURCE AT RUN TIME

S

Souris

I need to refresh my form when user click my dropdown box.
Because the query is very complex, it need be done a my SQL server stored
procedure.
Are there any way to link to SQL server stored procedure through Access
query every time when user click drodown box?

Any informaiton is great appreciated,
 
S

sparker

Souris,

here is the answer posted by another user for this same question. I am
feeling lazy so I copied it for you. It should contain what you are needing
or at least set you in the correct direction:

You can use ADO objects to run the stored procedure. Here's an example:

'---- start of code snippet ----

Dim cnn As ADODB.Connection
Dim cmd As ADODB.Command
Dim strConnect As String
Dim lngReturnCode As Long

' Open a connection to the back-end database and set up a
' command object to work with it.

Set cnn = New ADODB.Connection

cnn.Open fncGetConnectString()
' The above function, fncGetConnectString(), returns the connect
' string needed to access the SQL Server back-end database,
' extracting it from a linked table's Cronnect property. You
' can hard-code your connect string if you want.

Set cmd = New ADODB.Command

Set cmd = New ADODB.Command
Set cmd.ActiveConnection = cnn

' Set up and execute a call to the server to execute the
' stored procedure and get the result.

cmd.CommandText = "spInactivatePosition"
cmd.CommandType = adCmdStoredProc
cmd.Parameters.Refresh
cmd.Parameters("@PositionID") = m_lngOriginalPositionID
cmd.Parameters("@EndDate") = Me!txtEndDate
cmd.Parameters("@User") = CurrentUser()

cmd.Execute , , adExecuteNoRecords

' Get the proc's return code from the Command object.
lngReturnCode = cmd.Parameters("@return_value")

'---- end of code snippet ----

Note that I chose to Refresh the command object's Parameters collection,
rather than creating my own Parameter objects and adding them to the
collection. The method I used does require another round trip to the
server, so you may choose not to do that.
 
Top