Use a text box to calculate and show results in a user form

[Guest]

I think this is a simple operation but I can not find the way to do it.
I have a excel user form with 3 text boxes, tb1, tb2 and tb3. I want to use
tb3 to show the results of the enteries made in tb1 & 2. For example
tb1 = Maximum
tb2 = Minimum
tb3 = Maximum - Minimum
After the entry is made in tb2 then tb3 will automatically show the
calculated result as the user will not be allowed to move onto that textbox.
At this point the record wil is part of a larger form and not updated to the
worksheet.

Regards

 

[Mangesh Yadav]

In the change event for the first two textboxes, put the formula:

tb3 = tb2 - tb1

Mangesh

 

[Guest]

sorry to be a pain but where do I find this to enter the text ? - thanks for
the quick reply

 

[Mangesh Yadav]

In your user_form, double click on the textbox tb1, this will open the VBE
with the following:

Private Sub tb1_Change()
tb3 = tb2 - tb1
End Sub

Repeat for the second textbox.

Mangesh

 

[Guest]

thanks for that Mangesh but I now get a runtime error 13 type mismatch, I
dint suppose you can help with that, I am using numbers I guess it is looking
for a text or something. Any advice would be great - Thanks

 

[Guest]

can not get this to work can anybody help with some code or a working example

 

[Mangesh Yadav]

can you post your entire code you are using...?

Mangesh