Modules & VBA :: Function - Can A String Be Optional Variable?
Aug 26, 2014
I am amending some Code I found online for an audit table, I need to store additional information in the table that is associated with some forms but not others.
I have researched about putting optional variables in, but I read this only works with the type VARIANT.
Is there a way to make a string optional as my fields contain text?
here is my code so far:
Sub AuditChanges(IDField As String, UserAction As String, Optional UserID As String, Optional DeviceID As String, Optional SimID As String)
On Error GoTo AuditChanges_Err
Dim cnn As ADODB.Connection
Dim rst As ADODB.Recordset
Dim ctl As Control
Dim datTimeCheck As Date
I am using a public function to feed a variable string to a query. So far I have got:
Code: Public Function ClientStreetModule(firstLVar As Variant, streetVar As Variant, newFL As Variant) As String Dim cslStr1 As String, newStreet As String newStreet = Right(streetVar, Len(streetVar) - Len(newFL))
[code]....
However, I only need to use newStreet as the true part of iif, in which instance all are longer. At least I think this is the problem. I realise I might need to use NZ but am not sure how. Why it is evaluating and giving errors for all records and not just when the iif criteria is true as I want it to?
I am trying to set the following variable that will be used to create a PDF file in an already existing folder and name the file WorkorderIDddmmyyyy-hhnnss.pdf
The following variable setting creates the filenameddmmyyyy-hhnnssWorkorderID.pdf.
I just can't figure out how to construct it correctly.
Also, is there a way to dynamically create a folder if the folder doesn't already exist? I currently hard code the folder name but would really like to create the folder name based upon some other variable.
I am currently trying to create an update query (building a SQL String in VBA for a command button click event) to update a variable's value into a table.
Basically, there are 2 tables, displayed in 2 sub froms within the same main form. (OldTable and NewTable for arguments sake)
The basic method I want to implement is that a user highlights a record in the subform of "NewTable". (This value is stored as a variable "NewJPNUM" This value is then to be inserted into the highlighted row (or rows) of table OldTable on command button click.
So the basic idea is a user highlights a row in one table and this value is stored as a variable "NewJPNUM" . The user then highlights a row or rows in "OldTable" and the value from variable "NewJPNUM" is then written to field "NewJPNUM" in "NewTable" on command button click.
I am not experienced with Access but have decent experience in Excel / VBA so not really sure of best practice methods etc.
I am trying to write vba code to enter a form. A am using an SQL statement in vba to enter the form with it.
I want to include a string variable in the WHERE clause of the SQL statement. The string variable is introduced in the DIM statement before coming up to the SQL statement.
The following is the SQL statement. numrukarta is the string variable I want to introduce. I need to know the exact punctuation to be able to insert it into this statement.
StrSq1 = " SELECT Employees.NName, Employees.SSurname, WorkItems.IDcardNo, WorkItems.DDate, WorkItems.EntryTime, WorkItems.FinishTime, WorkItems.Roster" _ & " FROM Employees INNER JOIN WorkItems ON Employees.IDcardNo = WorkItems.IDcardNo" _ & " WHERE (((WorkItems.IDcardNo)= numrukarta) AND ((WorkItems.DDate)=Date()) AND ((WorkItems.FinishTime) Is Null);" AND (Not (WorkItems.Roster) Is Null))
I defined a public variable and then for being able to filter a query results, assigned it to a public function. The problem is that function doesn't get the variable's value.
I'd like to expand me tree view automatically when a node matches a string variable from a table. In other words, when a node in a tree matches the given name (variable), the tree will expand all the way down to that name. I guess I need to use "For each node" and when the node and variable match, the tree structure will show up.
I have come up with something like this:
Code: For Each nd In Me.tree.Nodes If nd = level1 Then nd.Child.EnsureVisible Exit For End If Next nd Me.tree.SetFocus
But this only shows the first level of my tree ( btw. I have a 3 level tree). I get lost inside the FOR when I want to make use of another two variables - level2 and level 3
I have some code in a form that calls for a public function and passes on some values. the function makes some calculations and assigns a value to the variable "percent" in the function itself.
How can I get the value of this variable back in the form so I can use it?
Form:
Code: Private Sub Form_Open(Cancel As Integer) Dim Table As String, TotalFields As Single Table = "tblAdmission"
Question for Documentation purpose: Should the Public Type be declared in its own module?
Or should it be declared in a standard module where non-public functions use it? It is not for a Form module use.
For a Rule Engine, a function is calling one record on 4 different SQL Views (as linked tables) that have the same field format.
For speed, the recordset should only be opened once. However, there are multiple values that must be returned to the result table multiple fields.
One way to return multiple values is an Array. That has over head too.
Another way is to create multiple public variables. Not my choice for documentation. Another is to create a string.
This is a pure code module with several non public functions / subs. What is the documentation preference? List a Public Type close to the function, or place it in the Global module?
Background: A function can only have one return value.
By creating a public Type, multiple values can be returned.
Code: Public Type Income Wages As Currency Dividends As Currency Other As Currency Total As Currency End Type
Use this structure as the return type for a function. In a real situation, the function would look up your database tables to get the values, but the return values would be assigned like this:
Code: Function GetIncome() As Income GetIncome.Wages = 950 GetIncome.Dividends = 570 GetIncome.Other = 52 GetIncome.Total = GetIncome.Wages + GetIncome.Dividends + GetIncome.Other End Function
To use the function, you could type into the Immediate Window:
GetIncome().Wages
(Note: the use of "Public" in the Type declaration gives it sufficient scope.)
Important Notice The way this function is called will work, but is wrong from the aspect it re-calls the recordset over and over.
I can't figure out how to replace a period that is in the middle of a string and end up with 10 digits. For example 55.5555 would be 5500005555. I can use replace() but the tricky part is I have to end up with 10 digits.
Ultimately what I'm trying to do is - when a user enters 55.5555, 555.5, 5.5 or any variation they will be able to find the corresponding record. So a wildcard for the search or the replacement of the "." with enough zeros for 10 digits.
Here is what I'm using now - i making them enter the full 10 digit number but would like to give them the ability to use the period in place of the zeros.
Function Search() Dim lssql As String Dim lsSn As Recordset Dim db As Database Dim lsMessage As String Dim sMsg As String Dim vRetVal As Variant Set db = CurrentDb()
Need to use CAST to return integer value of string (digits as data type string).
Where clause looks like this:
... Where Cast([Price File] as int) > 0
works fine in SQL Server but not sure what syntax is in VBA . Using Paul Baldy's suggestion to set Select statement as string and do the debug.print to verify that SQL has no goofs ... looks good but not to Access. What is proper syntax?
The code has fixed path information on a lot of places in different SQLs (DoCmd.RunSqL command). I want to replace fixed path info with variable path info. Variable path info is stored in the table.
I managed to achieve that in the following manner:
Code: Dim db As Database Dim dbName as String Set db = CurrentDb Set rs = db.OpenRecordset ("TableName", dbOpendynaset) rs.FindFirst ("ID = " & 2)
[Code] ....
where I would use as variable Function name instead of dbName.
How to make module that will enable to use Function name as variable path information for SQL queries?
I currently have a bound form that adds a new student, however, I've decided I don't like bound forms as weird stuff can happen (like when the user exits in another way than I anticipated) so I'm making an unbound form which will add the student when a button is clicked. I already have this working on some other places so this should be no problem anymore.
However in my database a lot of student information is optional and only a first and last name are required (and ofcourse an autogenerated PK). So my question is how do I deal with these fields that might or might not be empty?
I could make a fairly big If ... ElseIf... construction where I slowly fill a String with all the optional fields but I was wondering if maybe there are some better ways to approach this?
Can anyone tell me how I use a variable I have defined within a SQL string.
e.g.
***code start ***
Dim ComputerName as string Dim Sqlstr as string
ComputerName = Environ("ComputerName") Sqlstr = "INSERT INTO ComputerName ("ComputerName") SELECT ***This is where I need help including the variable ComputerName I defined above ****
Hey all, hope this question isn't too newbiefied :D .
I have a database where I must run 10 tests depending on which product I have selected (from a drop box). Each product requires different tests (of the 10) and I am hiding the tests that I do not need after the product is selected. The way I have it set up right now is I have 10 different If statements...one for each test on the "On Change" event.
I have been trying to reduce this down to one If statement nested inside a while loop, but my visual basic isn't very good. I have named the Test buttons Test3- Test13, and want to increment just the number of the test. However, when I try to plug in my concatenated string, I have problems. My code is as follows:
Dim testcount As Integer Dim testcheck as Boolean Dim testnumber as String
testcount = 3
While (testcount < 14)
testnumber = "Test" & testcount If Me.selectedproduct.Column(testcount) = True Me.testnumber.Visible = True Else: Me.testnumber.visible = False End If
testcount = testcount + 1 WEnd
Me.testnumber is obviously not an object on the Form...so I guess my real question is, how do I get visual basic to plugin the variable testnumber so that the code reads Me.Test3.Visible.
Error 91 - Object variable or With block variable not set
I am getting this error telling me that an object variable is not set.
I know which variable it is but when I step through the debugger it sets the variable and all is fine? Issue is that public variable of a class is not getting set when the VBA Editor is not open?
This code runs fine the FIRST time, however trows up a message the SECOND time it is run.
The error is on the line ".Range"
I am trying to sort records which have been exported to Excel.
Dim LR As Integer LR = 5 Set xlApp = CreateObject("Excel.Application") xlApp.Visible = True Set wbRef = xlApp.Workbooks.Add With wbRef
wbRef.Activate .Worksheets("Sheet1").Activate With ActiveSheet .Range("A2", .Cells(LR, "O").End(xlUp)).Sort Key1:=.Range("C2"), Order1:=xlAscending, Header:=xlYes End With end With
I have a form (Datasheet). I need to define some variable in form as string, which can work with any event. E.G in column "A"on event after update, in column "B" on event after update...
I will try to explain with a simple example : form (datasheet) columns: "A", "B"
on event after update in coulmn "A", I could have some like this: (variable what I need to define) = 3
on event after update in coulmn "B", I could have some like this: If (variable what I need to define) = 3 then msgbox "ok" end if
Now I try to work around the problem and use another column "c" to keep the value from after update A - but I know that, it's bad solution -Right?
Dim var1 As Variant, var2 As Variant, var3 As Variant, var4 As Variant DIm var5 As Variant, var6 As Variant, var7 As Variant, var8 As Variant Dim var9 As Variant, var10 As Variant Dim i1 As Long i1 = 1 Do Until i1 > 10 var & i1 ??? = "0" & i1 & "." & txt1 & "." & txt2 i1 = i1 + 1 Loop
How to make concatenate var + i1 to make loop function?
I want to build a combo box with several different RunForm variations as follows:
RunForm("frmProviderLookup", "", "Edit", "", "", "Normal", "Normal") RunForm("frmCustomerLookup", "", "Edit", "", "", "Normal", "Normal") RunForm("frmVendorLookup", "", "Edit", "", "", "Normal", "Normal") etc, there are many of these
When I select one the variations from the combo box the RunForm statement is stored in strAction varaible..How do I code the Call strAction line? (I want only one call statement).In other words how to call a Function from a variable...The start of my module Function works OK and looks like this:
Public Function RunForm(FormName As String, _ Optional WhereCondition As String = "", _ Optional xMode As String = "", _ Optional filterName As String = "", _ Optional Args As String = "", _ Optional WindowMode As String = "", _ Optional View As String = "")
' Parameters (all optional except parameter 1) ' 1 - Form Name ' 2 - Where condition ' 3 - Mode [Add, Edit, View(Read Only), ""(PropertySettings), DS(Datasheet Edit)] ' 4 - Filter Name ' 5 - Opening Arguments ' 6 - Window Mode ' 7 - Form View
I have an Access database in which one of the queries has following fields:
Reference1:Getstring([Reference],1) and the second is
Reference2:Getstring([Reference],2)
I cant find any reference to Getstring function's use or functionality. Microsoft's website only says "Obsolete" indicating this is no longer used. (i am using access 2003)
