VBA refresh current record/control only

I have 2 combo boxes in a sub form (datasheet view).
1.) Category
2.) Question
When a user selects a category, I can get it to filter the question. However, the previous values in the question field disappear. I only want it to filter the current row/record.
Is this possible?
I did attempt doing something like the below, using methods such as re-query and refresh to no avail:
Private Sub Category_AfterUpdate()
Dim recordnum As Integer
recordnum = Me.CurrentRecord
DoCmd.GoToRecord , , acGoTo, (recordnum)
End Sub

Any help would be greatly appreciated.

Kindest regards

melinhomesAsked: 2018-03-22

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LVL 41

ste5anSenior DeveloperCommented: 2018-03-22

You need to set in the On Enter event the filtered data source and On Exit event reset it to show all.

When a user selects a category, I can get it to filter the question. However, the previous values in the question field disappear. I only want it to filter the current row/record.

So the question is, what are you doing exactly?

LVL 61

mbizupCommented: 2018-03-22

It sounds like your form is in Continuous Forms View. Despite *appearing* as though there are separate combo boxes in each record, it is actually only a single control. When you limit the row source of your combo box, any rows in which the value for that field does not appear in the row source will 'go blank' for that field.

A solution is to overlay a textbox on top of the combo box, bound to the underlying field, carefully positioned so that the user can sill click the drop down arrow. With this setup, the textbox will display the stored value regardless of how the drop down list is limited/filtered.

If the underlying field is a numeric ID field, you may need to modify your form's query or use a DLookup in the textbox control source to display the related text.

melinhomesAuthor Commented: 2018-03-22

Hi mbizup
Its a subform, in datasheet view unfortunately, not continuous forms view. Is the only method to change to form view and overlap?
Thanks

LVL 61

mbizupCommented: 2018-03-22

Yes. Datasheet View does not offer you that kind of flexibility.

Continuous forms give you a lot more control over what is displayed.

(And in Single Form View, this would not be a problem)

LVL 51

Dale FyeOwner, Developing Solutions LLCCommented: 2018-03-22

Agree with Miriam.

Here is a sample database I prepared for someone with a similar question not too long ago.
20180317-Continuous_and_Datasheet-.accdb

LVL 43

PatHartmanCommented: 2018-03-22

I found an old example. I'm not sure who built it and I haven't used it. Possibly Roger Carlson. If anyone knows, please tell me.

I also uploaded the sample I built years ago which uses the field overlay method for continuous forms.
CascadingComboInSubform2k.zip
FixCascadingCombos130128.zip

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LVL 51

Dale FyeOwner, Developing Solutions LLCCommented: 2018-03-22

here is the thread I referred to in my previous post.