Evaluating Textbox For Null Values

Jan 31, 2005

I am having problems getting Access to evaluate whether a textbox is empty using VBA behind my form. I'm currently using Access 2000 on a Windows98 machine, but I also tested this in Access 2003 on an XP machine and got identical results.

The way I’d like the code to operate is if the “Product1” field is empty, the value taken from another form would be pasted there, and if it isn’t empty, go to the “Product2” field and if that field is empty, paste it there, otherwise go to the “Product3” field, etc.

I have tried using If IsNull(“Product1”) Then… but Access seems to think that the unbound textbox with no default value isn’t empty.

I tried using If ("Product1" <> "*") Then… but Access again seems to think that there is something in that unbound/no-default value textbox.

My code looks like this:
If ("Product1" <> "*") Then
DoCmd.GoToControl "Product1"
DoCmd.RunCommand acCmdPaste
DoCmd.OpenForm "ActiveProduct", acNormal, "", "", , acNormal
DoCmd.GoToControl "Description"
DoCmd.RunCommand acCmdCopy
DoCmd.OpenForm "Order Form", acNormal, "", "", , acNormal
DoCmd.GoToControl "ProdDescr1"
DoCmd.RunCommand acCmdPaste
DoCmd.Close acForm, "ActiveProduct", acSaveNo
DoCmd.GoToControl "ProdQty1"
DoCmd.Close acForm, "Product Lookup form", acSaveNo

ElseIf ("Product2" <> "*") Then
DoCmd.GoToControl "Product2"
DoCmd.RunCommand acCmdPaste …

End If

I admit that my VBA skills are limited, but after having scoured these forums as well as Access help and examining the logic of my code, I am completely stumped. Any suggestions you can offer would be greatly appreciated!

Thanks!

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