Using Frequency In A Data Validation Formula To Ensure Unique Entries

Mar 11, 2014

Using frequency in a data validation formula for ensuring unique entries.

Currently I use COUNTIF($B$2:$B$244,B2)

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Ensure TextBox Entries Add To 100%

Dec 10, 2007

I have five text boxes on a user form. I would like the 5th box to always equal 100 - the Sum of the other boxes, and never go below 0.

In other words, the text boxes are representing percentage breakdowns - so to validate the percentage entry in each box i want the last box to 'count down' from 100 as the percentages are distributed amoungst the other boxes. This box will also be a percentage figure, so is crucial it has its own box (rather than just saying these four boxes have to total 100) i hope this makes sense!

I have tried a code along these lines (see below) - (adapted from this forum but couldnt get it to work) I also found a version where one poster used a command to change the 'value' from string to numbers - but have been unable to find that again.

Private Sub txtbox1.change()
txtbox5 = 100 - (CCur(txtbox1) + CCur(txtbox2) + CCur(txtbox3) + CCur(txtbox4))
End Sub

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Identifying Unique Entries Based On Unique Entries In Another Column?

May 29, 2014

I have a list of data and I want to identify the unique entries for both columns but the second column has to unique to the unique values in the first column.

Example List

Fruit
Color
Apple

[Code]....

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Data Validation To Ensure Like Numbers In Cell A Has Same Date In Cell B

Jan 10, 2008

I am trying to set up a data validation to ensure that when a user enters a number in column A that matches a previously entered number in column A, the user is only allowed to enter the same date for the number it matches in column B.

For example, if:

Row 3 column A = 1320

and

Row 3 column B = 16-Dec-07

and

Row 15 column A = 1320

then:

Row 15 column B must be 16-Dec-07

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Unique Entries Formula From 2 Lists?

Aug 12, 2014

I have two lists and I would like a formula which only returns unique values - similar to an advanced formula. Is this possible?

In the attached example my data is in columns C and D and I would like a formula in column E if possible. I need it to ignore the capitals. E.g. BLACKBURN and Blackburn appears in each list but I would only want one instance pulled through in column E.

Currently in column E I have the desired result.

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Formula To Return Unique Entries Only

Nov 6, 2008

I am seeking to pull names from a list on one worksheet in to particular cells on another worksheet using each name only once. I need a function or series of them that can accomplish this. I have been trying to figure this out for a couple of months with no luck as I always get into some form of circular reference....

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Ensure Value Added From Userform Is Unique

Oct 13, 2007

I have created a userform to add a new user and his/her password to a list of usernames and passwords (which i use for login procedure). Now, as the login name must be unique, I would like the userform to disallow existent usernames from being added. How do I go about doing this?

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Custom Validation Formula To Prevent Duplicate Entries?

Aug 15, 2012

How do I set up a custom validation formula to prevent duplicate enties?

For example I I've already enter the song name 19 and Paul Hardcastle (BandName), how do I set it up where I can not enter that combination again on a row?

I was wanting to use a custom CountIF function but I could not get it to work.

A
B

Song
BandName

19
Paul Hardcastle

[Code] ....

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How To Ensure Cell Entry In A Range Is Always Unique

Jun 18, 2013

I have a range B1:B20. These cells are populated by the user and I want to ensure that no two entries are the same. Is there a way of presenting a dialog box that prompts the user to enter a different value if the value they are trying to enter is already entered somewhere in the range?

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Ensure Value Entered Into Textbox - Validation Not Working Properly

Jul 1, 2014

I'm using the following code to try to ensure a value is entered into a text box, but when I click over to the next text box skipping the first one entirely, I don't receive any message indicating the previous box is empty. I'm trying to make it so certain fields are required and others are optional. Here's the code I'm currently using:

[Code] .....

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Data Validation And Non-Repeating Entries

Apr 18, 2014

I'm trying to create a questionnaire and in each question you got to rank the answers 1, 2, 3 and 4 according to your preferences.

So I'm trying to use data validation to allow ranges between 1 and 4 and at the same time I'm trying to use =countif($B$20:$H$20,B20)=1 to prevent repeating selections but my problem is that with the data validation tool I can only select one of those options either allowing whole numbers between 1 - 4 or allowing custom and using =countif($B$20:$H$20,B20)=1.

Is there a way to do both?

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Multiple Data Validation Entries Into One Cell

Jun 2, 2014

Is it possible to create a formula using a Data Validation List where it will add a new entry to the existing entries in a cell?
For example: I have a data validation list with the names of Pete, Chris, Bruce, Carly, Megan, and Becky. With the normal data validation set I can select one entry and it will be output into the designated cell. If I select Bruce then Bruce with be placed in the cell. Is it possible to set it up so that each time I click on data validation it will add an entry to the already existing entry? E.g. I have already selected Bruce then I decide to add Becky, I want the output cell to show both Bruce and Becky.

I know I can do this with a formula that will place all the results from different cells into a single cell, but I would then have to create multiple data validation entries of which I would rather avoid if possible. Not to mention I don't remember how to do this formula anyway......

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Data Validation List & No Duplicate Entries

May 23, 2007

I have a spreadsheet that needs to have a validation drop down list in three cells in every row (D, E, F). There are three items in the list, say, "One", "Two" and "Three".

My only problem is that there can only be one entry of "One" in each row.

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Finding Unique Entries Among Two Columns Of Alphanumeric Data

Jun 16, 2006

Columns A & B contain several thousand Project Numbers (e.g., P1052, PA844, etc.). Many of the Project Numbers in column B are the same as in column A, but column B also has additional (i.e., newer) Project Numbers scattered throughout. Ideally, I would like to use a built-in function (versus a custom function if possible) that compares all the Project Numbers in both columns and then separately lists those that are unique to column B.

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Set Maximum Number Of Entries In A Range - Data Validation?

Dec 8, 2012

Basically in cells b12:b26 (15 cells) I need to enter the type of item (which is limited to 2 items). I made a drop down list for that range which works perfectly, therefore the user can choose either item 1 or item 2 or blank. However, I need to figure out a way so that item 1 can be chosen a maximum of 10 times in the range, and item 2 can only be chosen 5 times in that same range..

I am assuming that you can't add that condition to the drop down list... So I was thinking of adding an extra column duplicating b12:b26 (c12:=b12 etc...)- and entering a data validation there.

I was going to enter the following:

if item 1 is chose : =NOT(COUNT($c$12:$c$26)>10) &
if item 2 is chosen: =NOT(COUNT($c$6:$c$6)>5).

However, for some reason it doesn't work - it doesn't block the entry if I try to enter 11 item 1s or 6 item 2s.

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Unique Count Number Of Users In Month Regardless Their Frequency

May 29, 2014

I have a signup record that expected to grow up to row 400. On the top, there's a monthly tally for reports. Column B to count the number of boxes taken and Column C for the users picked up the boxes.

Users should be accounted as one appearence in a month, regardless re-appearance in the same month or different month.

I haven't found the generic formula to uniquely count the number of users regardless their frequency in a month.

NOTE: Timings, box numbering format and usenames are randomly generated. Any similarities with real subjects will be coincidence only.

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Calculating Frequency Of Unique Texts Within Month Under Certain Criteria

Feb 25, 2013

I need to get a general formula which if possible, automatically calculates the frequency of unique texts (no duplicates) under a particular month (January) without manually inserting the cells which is under january. If possible, the formula will also check to see if the company is either Cash or Cheque.

I have three columns; Date, Company name and Payment mode.

Date ranges from 1 jan 2010 to 31 dec 2012. Cell A2 to A234

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Data Validation - How To Get Only Unique Values

May 27, 2013

I have defined name in excel like:

Named: My_CARS
Refers to = My_Cars!$C$2:$C$100

Now in sheet2, I I'm doing in field A2 data validation and set up to Validatation Criteria as:
- Allow = List
- Source: = My_CARS.

But I have all values - with duplicates. How can I get only unique values?

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Count The Number Of Entries In A Data Validation Dropdown List And Display A Result.

Nov 7, 2007

I am trying to do 2 things involving data validation. 1) Count the number of entries in a data validation dropdown list and display a result. 2) Use an If statement to pull the formatting from a cell into another cell.

An example would be if Cell A1="A", then show the drop down list associated with cell or sheet "!ryanB2". Alternatively, I would like to also display the number of entries in the drop down list.

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Unique List Would Grab All Unique Entries

Jul 30, 2009

I have a data table that repeats as follows:

CITI
SCB
SCB
SCB
SCB
SCB
SCB
SCB
RBC
RBC
RBC
RBC

From the data above I need to make a new unqie list that would grab all unique entries.
CITI
SCB
RBC

I am trying to use the following guide:

http://blogs.techrepublic.com.com/howdoi/?p=111

Get stuck on "Listing A:

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Two Cells Data Validation List Should Be Populated In Third Cell With Unique Values?

Apr 21, 2014

In cell H5 there is list of dates and in H7 there is codex, based on these two conditions in H11 a data validation list should be populated from the code_sheet using column B. The populated list should be unique entries, as the column B in code_sheet has duplicates.

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Setting Up A Validation Of Data Listbox To Provide The Unique Items Within A Range

Jul 23, 2006

I am trying to insert a listbox by the way of data validation and would
like
to only have unique data displayed in it. I was wondering if anybody
has done this before or if it is possible. I would like it to remove
any and all records that are blank.

This is what I have got so far.................

VBA Function UniqueItems(ArrayIn, Optional Count As Variant) As Variant
' Accepts an array or range as input
' If Count = True or is missing, the function returns the number
' of unique elements
' If Count = False, the function returns a variant array of unique
' elements

Next i

AddItem:
' If not in list, add the item to unique list
If Not FoundMatch Then
NumUnique = NumUnique + 1
ReDim Preserve Unique(NumUnique)
Unique(NumUnique) = Element
End If

Next Element

' Assign a value to the function
If Count Then UniqueItems = NumUnique Else UniqueItems = Unique
End Function

Then I input an array with a few duplicate Item and us the function to
determine the list. So far I found that it worked for the following
function:
{=TRANSPOSE(UniqueItems(A4:A27))}
but this only gives me the number of unique items in the array. The
problem is when I try to use the following function:
{=TRANSPOSE(UniqueItems(A3:A26,FALSE))}
This now only returns a zero and if I fill down they all are zero.

I would like to get a list of unique items from this formula. Example
list would be:
{Array = Lorem, Lorem, foo, bar, bar} {Formula_returns = Lorem, foo,
bar}
I haven't a clue how to display this in a regular excel cell box so I
thought that using a validation list box would inherently work.

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Create Unique List From Matrix & List Frequency Of Each Occurrence

May 23, 2009

I've searched the forum and believe this thread to be the closest to what im looking for, but its doesnt completely apply: matrix to list conversion. I have an attachment to support my questions (see attached). I have a matrix of words (strings) that contain repeating and non-repeating contents. The matrix also has spaces which are of no value. Essentially, the VBA needs to ' analyze' this matrix and create a consolidated frequency list (as shown in the file).

The matrices are HUGE and therefore some of the clumsy VBA i am using is turning out to be a bit inefficient. The file also contains formulas and such that I cannot use AutoFilter nor can I use Insert or Delete rows...so the VBA shouldnt use those either.

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How To Ensure Formula Will Not Change If Shift Cell Down

Mar 8, 2014

I have the formula but it will always change when i shift my cell down

=MAX($G$21:G35)

When I shift my cell G21 down, it will change to below

=MAX($G$22:G35)

The problem is that I do not want the formula to change. How can I do it ?

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Formula For Sum Frequency

Apr 14, 2014

I have ID in column A and amounts in column B. ID's are duplicated, and I need to add amounts based on ID, so for example total of ID 156 should be $13,851.14 or 156 should be 7,290.63.

In the following example ID are in order, I need a formula that adds up the amounts in column C.

152
(14,542.81)

152
(199.25)

153
(37,554.98)

153
(19.92)

[Code ...........

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Sum Unique Entries

Apr 23, 2007

I have attached a sample workbook to try and explain what I'm after.

Basically I want to sum the amount of occasions a person has had checks and each occasion could have 1,2 or 3 individual checks.

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Ensure Data Integrity

Jul 15, 2006

I am trying to ensure that only alpha numeric data (one letter then 4 digits) is entered in a cell.

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How To Get Unique List From A Column To Data Validation Dropdown List

Oct 28, 2011

I'm looking for a way to get a unique list from a column to a data validation drop down list. Any fancy formula or vba script to create a UDF which. Does this?

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Counting Unique Entries ...

Nov 2, 2009

Couting Unique Entries

I've included a sample worksheet ...

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Extract Unique Entries

Oct 4, 2006

I have a list with many names, several of them appearing more than once. I would like to extract the unique entries an then make the list of them.

I can do that using the filter. But can I do it with formulas ? (In order to, whaterever change is made to the first list, get the extracted one immediately updated).

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