问题
*****EDITED
So I have a form titled "NewInvoice". This form edits a table "Invoice" which contains the following; Invoice Number, Customer, Order Date. In this form I have a button which opens a subform titled "InvoiceItem". This edits a table with the same name that contains Invoice Number, Item Code, Dimensions, Etc.
Now currently, my button has an event procedure as follows.
Private Sub CreateInvoiceItem_Click()
DoCmd.OpenForm "InvoiceItem", OpenArgs:="InvoiceNumber"
End Sub
(The reason I am using a button and opening the form in a separate window is because I have cascading combo boxes in the sub form that become broken when I insert the sub form into the parent form)
Now where I am having trouble is setting the Form Load command. What I would like to occur is that the InvoiceNumber which is filled out in the Parent form auto fills in the sub form when the button is clicked.
Private Sub Form_Load()
**** NEEDED CODE****
End Sub
回答1:
So try fixing the comboboxes as described in comment under question. Also, recommend code to requery the dependent combobox be in its GotFocus event. Keep in mind, cascading combobox with lookup alias will not work nice in continuous or datasheet form.
If you really want to pass value to independent form, the OpenArgs is a good approach.
Probably need to open the form to a new record row.
DoCmd.OpenForm "InvoiceItem", , , , acFormAdd, acDialog, Me!InvoiceNumber
Need code that makes sure the form is on a new record.
Private Sub Form_Load()
If Me.NewRecord Then Me!InvoiceNumber = Me.OpenArgs
End Sub
回答2:
I find that the best way to do this is to add a Public sub to the form that you're opening and then pass whatever parameters you need to this function when you open the form. So to do what you're looking to do add a function like this to the form that you're opening;
Public Sub SetUpForm(InvoiceNumber as Long)
txtInvoiceNumber.Value = InvoiceNumber
End Sub
Where txtInvoiceNumber is the control on the form that you want to put the value into.
Then from your button;
DoCmd.OpenForm "InvoiceItem"
Forms!InvoiceItem.SetUpForm InvoiceNumber
This will pass your value for the invoice number to the control on the form that you're opening. This also gives you a lot more flexibility to control the process because you can pass more than one parameter to the sub and in the sub you can perform any number of tasks.
来源：https://stackoverflow.com/questions/43600653/passing-values-between-forms-using-openargs