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Dec 12th, 2000, 02:30 PM
#3
Lively Member
Here's some sample code for a project I was toying with. It shows opening the access database, doing both a query and a seek in a recordset. Hope it answers more questions than it creates...
' create a form with 6 controls: list1, text1, text2, text3, text4 and text5
' this is in general declarations...
Public db1 As Database, rs1 As Recordset, qry1 As String, rs2 As Recordset
Const dbname = "\commissions\zcs.mdb"
Private Sub Form_Load()
List1.Clear ' clear out a list box to load information into...
x = Space(90)
Set db1 = OpenDatabase(dbname) ' open the database
qry1 = "Select * From PcLoc Order By location_number" ' create a query; PcLoc is a table
' the above query will find all records in the PcLoc table and sort them by the field location_number
Set rs1 = db1.OpenRecordset(qry1, dbOpenDynaset) ' this executes the query
Set rs2 = db1.OpenRecordset("PcLoc", dbOpenTable) ' this opens another recordset to read in detail
' pcloc has 5 fields
' location_number <- primary key...
' customer_number
' customer_name
' location_name
' route_number
rs2.Index = "PrimaryKey" ' want to use the primary key to access this recordset
If rs1.BOF Then GoTo no_records ' if no records - skip the loop...
rs1.MoveFirst ' goto the first record in the selected list
Do Until rs1.EOF ' keep looping until end of file...
Mid(x, 1, 4) = rs1![location_number] ' i'm building a string to stick in the list box
Mid(x, 7, 4) = rs1![customer_number]
If IsNull(rs1![customer_name]) Then
Mid(x, 13, 30) = ""
Else
Mid(x, 13, 30) = rs1![customer_name]
End If
If IsNull(rs1![location_name]) Then
Mid(x, 45, 30) = ""
Else
Mid(x, 45, 30) = rs1![location_name]
End If
List1.AddItem x
x = Space(90)
rs1.MoveNext ' go get another record if any...
Loop
no_records:
'rs1.close ' close the recordset
'db1.close ' close the database
End Sub
Private Sub List1_Click()
' if you click on a line in the list box, this will look for the matching record in the rs2 recordset...
rs2.Seek "=", Mid(List1.Text, 1, 4)
'Stop
Text1.Text = rs2![location_number]
Text2.Text = rs2![customer_number]
If IsNull(rs2![customer_name]) Then
Text3.Text = ""
Else
Text3.Text = rs2![customer_name]
End If
If IsNull(rs2![location_name]) Then
Text4.Text = ""
Else
Text4.Text = rs2![location_name]
End If
If IsNull(rs2![route_number]) Then
Text5.Text = ""
Else
Text5.Text = rs2![route_number]
End If
End Sub
************
steve hanzek
vb6 sp3
[email protected]
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