Validate InputBox For Negative Even Numbers

Oct 5, 2006

I need to create an input box that will only allow Negative Even Integers to be entered. Also, after a Negative even integer has been entered, I need it to Sum all of the EVEN numbers between the number entered and 0. The below is what I have, but a person could easily enter in a number that is NOT a negative even integer.


Dim Sum As Double, NumberEntry As Integer, i As Double
NumberEntry = InputBox("Please enter a negative even integer.")
Sum = 0
For i = NumberEntry + 1 To 0 Step 2
Sum = Sum + i
Next
MsgBox ("The sum is " & Sum)

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Validate InputBox Entry

Feb 11, 2008

validation up to the point that the user can click cancel and exit, also when nothing is entered a msgbox appears and for the 3rd inputbox a value greater than 0 must be entered.

Sub Trajectory() 'Trajectory macro
t0 = InputBox("Enter a value for the initial time(t0)")
'If t0 = "" Then MsgBox ("You must enter a value for t0!")
'Exit Sub
tf = InputBox("Enter a value for the final time(tf)")
'If tf = "" Then MsgBox ("You must enter a value for tf!")
'Exit Sub
Dt = InputBox("Enter a value for the time increment(Dt)")
'If Dt = "" Then MsgBox ("You must enter a value for Dt!")
'Exit Sub
'If Dt = 0 Then MsgBox ("You must have a valid increment")
x0 = Val( Range("F4"))
v0 = Val(Range("F5"))
g = Val(Range("F6"))
y0 = Val(Range("F7"))
q0 = Val(Range(" F8"))
Selection.Formula = FILL_TABLE
End Sub

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May 12, 2009

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Aug 1, 2007

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I was trying if(right(A1,1)="-",TBD,A1)

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Apr 24, 2007

I have a VBA user form that asks for user's input. The form has 3 textbox. I would like to check for the entry & make sure that it's numeric & not null. If it's not numeric or null, I'd like to display a warning message & highlight the textbox & ask for entry again.

Here's what I have but it's not really working. The warning message will come up but the next textbox is highlighted:

Private Sub TextBox1_Exit(ByVal Cancel As MSForms.ReturnBoolean)

If Not IsNumeric(Me.TextBox1.Value) Then
MsgBox "Please Enter Only Numeric Values"
TextBox1.SetFocus
End If

End Sub

Private Sub TextBox2_Exit(ByVal Cancel As MSForms.ReturnBoolean)

If Not IsNumeric(Me.TextBox2.Value) Then
MsgBox "Please Enter Only Numeric Values"
TextBox2.SetFocus
End If

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Feb 1, 2007

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Mar 19, 2008

I would like to " Validate Data In A Vertical Column To Not Allow Non Consecutive Numbers Less Than 100"

756415
10
456132
7
456123
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The above is a valid list. Below would be an invalid list:

756415
10
13
456132
7
7
456123
12
13

This part of a larger scope, but I have a macro that will crash if the data entered is entered by way of the invalid list, it works perfectly with the valid list. I am limited to one column user's will input the data via a Barcode scanner that after it recieves input it enter's a "Hard" return. This is a warehouse pickticket program, user's scan their ticket id's (numbers greater than 100000) and then the number of lines on the ticket (usually not greater than 15)

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Usually this question is asked the other way around, but I have a somewhat unique problem. A certain website gives out tables filled with numbers. Positive numbers show in black font and negative numbers show in red font, but unfortunately, negative numbers do not include the minus sign -- the font is red and that's it!

I need a macro (or any other solution) that will turn the red font numbers to negative ones and would possibly format the cell to show negative numbers in red (I guess the last part is easier). The main problem is searching for the red font numbers and turning them negative.

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Apr 2, 2007

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I'm using Excel 2000

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Aug 7, 2006

I have been working on an excel sheet:

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Feb 4, 2012

I would like to see that I am continually saving on a per-day basis (as well as overtime). I allowance myself an allowance each day, but some days, I need to spend more money than that. The best solution I have to is keep a running total for myself, so that each day is affected by the preceding days. Therefore, if I spend too much, I now have a small defecit that needs to be corrected. This method keep me on track as far as saving and spending.

Question (and I copied the actual data from my spreadsheet):

Without having to manual enter the final calculations (because this is just a simple part of an overall larger, more complex spreadsheet), can I generate the values in my Value Change row, based on the information from my Running Total row?

For example, Day 1 to Day 2, I was able to incease my running total from 233 to 354 (meaning that I had saved +121 that day). Of course, this is an easy subtraction problem (Day 2 - Day 1 = Value Change). From Day 2 to Day 3, I spent way too much. The running total fell to -1198, meaning that I spent 1552 too much (that day's value change is -1552). Again, this an easy subtraction (Day 3 - Day 2 = Value Change, just like the first example). From Day 3 to Day 4, I was able to reduce my running total -1063, meaning that I was able to save 135 that day. This is my problem. Day 4 - Day 3 does not equal the value change of + 135. To get this value, the preceding formula now has to change to ABS(Day 3) - ABS(Day 4).

This is the issue. I need a formula that can work normally when the numbers are postive or when the second value is larger (in terms of absolute value). On the other hand, it needs to recognize the special cases like Day 3 - Day 4. Is this some form of a conditional function?

Running Total 233354-1198-1063-878-658-933-807-657
Percentage Change51.93%-438.42%11.27%17.40%25.06%-41.79%13.50%18.59%
Value Change121-1552135185220-275126150

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I want to modify the format such that it is able to display decimals where ever applicable.

For example

1,000 display as 1,000
0 display as a dash "-"
1.265 display as 1.265
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I tried changing it to:

_(* #,###,###.###_);_(* (#,###,###.###);_(* "-"_);@

However it added a "." to all positive and negative numbers regardless of whether there were decimals after it.

e.g.

10 displayed as 10.
-30 displayed as (30.)

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