If textbox value is less than 0, then display 0 problem

WombatTrax

New Member
Joined
Jul 10, 2012
Messages
10
Hey everyone,
Having an issue with a calculation displaying "0" in a text box on a userform if the value is less than "0".
I have two textboxes that do calculations and show the result in a third textbox. I want the third textbox to show a value of "0" if the the calculated value is less than "0". Any help would be great. I've tried a few different If Then statements, but have had no luck. I just can't seem to figure this out even though it seems like it should be relatively simple. Here is the code for the textboxes so far:

Private Sub TextBox3_Change()
If TextBox3.Value = "" Then Exit Sub
TextBox7.Value = CDbl((TextBox3.Value) - 100) / 20
End Sub

Private Sub TextBox4_Change()
If TextBox4.Value = "" Then Exit Sub
TextBox7.Value = CDbl((TextBox4.Value) / 6 + TextBox7.Value)
End Sub

Private Sub TextBox6_Change()
TextBox6.Value = Format(TextBox6.Value, "###")
End Sub

Private Sub TextBox7_Change()
TextBox7.Value = Format(TextBox7.Value, "##")
End Sub

Thanks for any help you can give me.
 

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Jerry Sullivan

MrExcel MVP
Joined
Mar 18, 2010
Messages
8,787
You could use Application.Max to make sure that if the result of the calculation is less than zero, then TextBox7.Value is set to 0.

Code:
Private Sub TextBox3_Change()
    With TextBox3
        If .Value = "" Or Not IsNumeric(.Value) Then Exit Sub
        TextBox7.Value = Application.Max(0, (.Value - 100) / 20)
    End With
End Sub

 
Private Sub TextBox4_Change()
    With TextBox4
        If .Value = "" Or Not IsNumeric(.Value) Then Exit Sub
        TextBox7.Value = Application.Max(0, .Value / 6 + TextBox7.Value)
    End With
End Sub

In order to display the zero value, you'll need to change the Format statement to this.

Code:
Private Sub TextBox7_Change()
    TextBox7.Value = Format(TextBox7.Value, "0")
End Sub

What are you trying to do with this statement?
TextBox6.Value = Format(TextBox6.Value, "###")
 

memar_one

Board Regular
Joined
Jul 20, 2012
Messages
161
Perhaps run a check to see if the text is numeric, then run the if-statement using TextBox3.Text instead of TextBox3.Value

To be honest, I've never used "TextBox3.Value" unless I'm setting it to "" in order to clear it. Instead, I always use "TextBox3.Text"
 

WombatTrax

New Member
Joined
Jul 10, 2012
Messages
10
Jerry-
Thanks for the code. It works just as I wanted it to. I figured it would be something simple; my brain just wasn't grasping it. Thanks again.
 

WombatTrax

New Member
Joined
Jul 10, 2012
Messages
10
Thanks Memar-
Jerrys' code does exactly as I wanted it to. I'll keep the ".Text" in mind though for future projects.
 

Jerry Sullivan

MrExcel MVP
Joined
Mar 18, 2010
Messages
8,787
FYI, For Textbox Form Objects, .Text and .Value are always the same. So you'll get the same result reading either property.
 

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