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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Duplicate Entries Validation With 3 Columns

Feb 15, 2014

I am looking for either vba or excel method to prevent duplicate entries across multiple columns. The data validation only works when it is input manually by the user and not when it is generated by the formula

What i am trying to do ( assuming " | " are column dividers and each new line is a row)

abc | 2 | bac | 3 | cab | 4

bac | 3 | abc | 2 | cab | 4

abc | 2 | bac | 3 | cab | 4

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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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Data Validation - How To Create Dropdown List That Excludes Duplicate Data

Sep 26, 2013

I'd like to create a drop down list in data validation from a column of data that contains numerous duplicates.

For example, let's say column A contained hundreds of transactions with either North, South, East and West, how could I create a drop down list in another cell that only had four selection options?

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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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Create List That Has Duplicate Entries

Oct 18, 2007

I am trying to create a drop down list from a named range that has duplicate names listed. I cannot delete any of the duplicate rows. Is there an easy way to create the list with each name represented only once?

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Formula For Extracting Duplicate Entries In A List

Apr 4, 2008

I need a formula (I'm not sure if its possible without using VB which I have found on another thread) that I can 'drag' down to the cell Bx (where x is variable) to extract unique entries in a list of values and then display them in a shorter, more concise list - like the 'Pick From List' function does but actually display these values in seperately in a column of cells.

Hope this is making sense.

So (hopefully) to elaborate:

A1:Ax = The list of values containing duplicates
B1:Bx = The list of only unique values from column A

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Add New Entries To Drop-Down/Validation List

Sep 2, 2006

I'm trying to make a sheet that will allow users to either pick from a drop down box, or if the choice they want isn't there, to input data in the same cell. That part I have got. What I can't do is figure out how to have excel add that user input to the list of options, so that they next time the drop down box is used, that "user input" will appear as an option in the drop down. I used data validation to do all these drop downs.

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Removing Duplicate Entries From List Of Names And Addresses

Jun 12, 2006

I'm trying to remove duplicate entries from a list of names & addresses.

What I'm after is some VBA code which will examine row by row the 'post code' field and the 'Full name' field and highlight/delete duplicate entries.

Its best illustrated by an example

Full Name Address Postcode
Mr C. Verougstraete 6 somone st, Leicester HY8 9YK
Mrs R. Brazier 8 high st HY9 9LK
Mr C. Verougstraete 6 somone st, HY8 9YK

The last record is obviously a duplicate of row 2 therefore will be removed.

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Auto-Update Validation List When New Entries Added To Source

Mar 18, 2008

how to make all cells displaying an item from the list source update with new information added to list source.

Example:
Cell "A1" on worksheet 2 displays the 3rd slot of information from list source on worsheet 5. I want cell "A1" on worksheet 2 to update when the list source information in the 3rd slot on worksheet 5 is changed.

Notes:
The list is set up by naming the columns on Worksheet 5 and is set as a validation list on the other worksheets. So on Worksheet 2 column "A" has the validation

VB:
AutoLinked keywords will cause extra spaces before keywords. Extra spacing is NOT transferred when copy/pasting, but IS if the keyword uses "quotes".

List=(Coulumn A 's name on worksheet 5)

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Validation Rule Dropdown List Without Duplicate Values

Feb 9, 2012

How to get rid of duplicate values in validation dropdown menu. I am using a range for the list that has a lot of repetitive values. I want to have only unique ones in the list.

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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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Find Duplicate Data - Identify Which Entries Are In BOTH Columns

Apr 27, 2014

I have data (e.g. PPL0106AU) in columns A (Rows 2 to 104) & C (Rows 2 to 303) and need to identify which entries are in BOTH columns.

I've entered in column B: =IF(MATCH(A2,C$2:C$303),A2,"No")

This formula is resulting in a duplicate of column A in column B.

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Duplicate Entries In Rows - Add Accompanying Data To New Columns?

Jun 4, 2013

I have attached a before and after image of what I am looking to accomplish.

In the before image, you can see that there are 3 rows of data

- a header

- a repeating model number (in column F) with accompanying data (values in columns G - J are the items of interest)

In the after image, you can see that I took the 3 rows of data and turned it into simply two rows of data

- a header

- the repeating model number

What I did however in the after image, as can be seen, is I took the data that appeared on the repeating row (Row 3 from the Before image), and included the PRICE, COST, BEGIN, and END values in new columns on row 2.

The model number is the same of course, which is why I did it that way.

If the model numbers were different, I would have simply left it alone, as-is.

Is there a way to accomplish this via some functions or maybe even a VBA script?

By the way, if we have to dump all of this onto a new sheet, then so be it.

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Retrieving Latest Data From Database With Duplicate Entries

May 21, 2014

How to retrieve the latest data from dataset.

My data consist of multiple entries of same id(s) at various point of time. I need to extract the latest data of a particular ID. I was using vlookup but it extract the first entry of that ID but not the latest. and the data is entered into the database using userform and VBA macros.

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Duplicate Entries For Single Data Points Sets

Mar 6, 2007

I am using old macro code in excel written several years ago. I am trying to educate myself to update and improve the macros I am using but not making much progress. This macro is used to record data from a DDE link to a Data Acquisition System. The D-AQ system sends the data points to r5c3:r5c9 typically. The macro then records the data points in those cells to the next row in sequence on a specific time interval. However, the macro is recording duplicate entries for each set of data points. Sometimes just two, but has been as many as four duplicates. I have a remove duplicates macro to run, after the fact, but preventing them from occurring in the first place is the goal. I included the application.wait method at 10 second intervals after the application .OnTime method, but it isn't preventing the duplicates.

Dim delta_time As Date
Dim Count As Integer
Dim n_rows As Integer
Dim start_row As Integer
Dim col_mov As Integer

Sub initialize_button_set()
start_row = 7
Count = 0
n_rows = Worksheets("sheet1").Cells(1, 2).Value
delta_time = Worksheets("sheet1").Cells(2, 2).Value
Application.OnTime Now + delta_time, "get_data"
Rem Worksheets("sheet1").Buttons.Add 275, 0, 72, 36
Worksheets("sheet1").Buttons.Caption = "STOP"
Worksheets("sheet1").Buttons.OnAction = "Halt"
End Sub...........................

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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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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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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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Syncing Two Lists Of Data For One List Of Individuals - One List Has Multiple Entries

Jan 20, 2014

I need to consolidate these two lists of data into one list.

First set is just a basic list of individuals with their data.

Second set is multiple entries for those same individuals. Each entry shows a subscription to a programme. The final single sheet should have one row per individual which shows all of the programmes they are subscribed to.

See attached, example sheet.

The real list is 3000 IDs, so need some kind of formula to do this.

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Data Validation Used To Create Separate Data Validation List

Feb 15, 2014

I have 2 columns First Name & Surname. What I want to do is create a data validation list on the surname which results in the 2nd data validation list only showing the first names which link to one of the surnames.

i.e. If I selected Smith in the 1st validation list then I would only like to see 'Paul' as an option in the 2nd list

First Name
Surname

Paul
Smith

Paul
Jones

Tony
Phillips

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Data Validation To Work When A Duplicate Value Is Pasted Into A Column

Feb 10, 2009

I have to enter patient's SSN's into my database. The fastest and most error free way to do this is simply copy the SSN from the electronic chart and paste into the appropriate cell in the database. I don't want duplicates. So, I need the database to alert me when I paste in a duplicate SSN. I know you can set data validation to do prohibit duplicates by using a formula. In the attached spreadsheet the SSN is in column B, so:

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Prevent User To Enter Duplicate Using Data Validation?

Dec 27, 2013

I want to prevent user from entering duplicate text or numbers in a cell using the Data Validation.

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Duplicate - Dependent / Related / Interconnected Data Validation (Dropdown Lists)

Jun 6, 2014

I have an Excel file with two different visible sheets (dashboards), each with different types of charts, which are pulling from the same data tables on a hidden sheet. I have a data validation drop down list on one of the dashboard sheets, which lists 7 items. Once one of the 7 item is selected, both dashboards update, which is what I want. However, I'd like to be able to have duplicated, related validation drop down lists. So if someone is looking at the first dashboard sheet and they select a new item, when they go to the second dashboard and see that same item, they could on that second dashboard select a new item without having to go back to the first dashboard.

I'd provide an example if I could, but cannot. I've tried searching on the forum for something similar, but most often the topic of dependent data validation is on two different types of drop downs with the second being dependent on the first, whereas I'm looking for two drop downs that are interconnected and can update in sync.

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Data Validation List Automatically Show The First Item In The List Rather Than Showing Blank

Jun 20, 2008

I can't seem to find a way to make a data validation list automatically show the first item in the list rather than showing blank.

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Named List: Data Validation To Restrict The User To Only Selecting Values In A List

Jun 15, 2007

I'm trying to use data validation to restrict the user to only selecting values in a list which I create. Right now, the list is a named range. I'd like to get rid of the range and just use a named list. I create a name using the following as my list.

Insert > Name > Create
Name: Fruit

Refers to:
banana,apple,orange

When I try to use the name Fruit in my data validation, I get the message "The List Source must be a delimited list, or a reference to single row or column." I thought my name "fruit" was a delimited list.

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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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Excel 2007 :: Data Validation List Depend On Another DV List

Apr 29, 2012

I have a List of Different Fruits in Cells A1 to A5

Apple
Banana
Orange
Strawberry
Cherry

And I use data validation list in 5 different cells from Cells C1 to C5 then in every cell the list will show all the fruits,

But I want that if I select Any Fruit in cell C1 that should not be included in the remaining 4 cells, and the fruits selected in Cells C1 and Cell C2 should not be included in the remaining 3 cells and so on....

I Used the formula

=IF(C1=A1,OFFSET(A2,,,COUNTA($A$2:$A$5),1),0)

But this works fine if I select Apple in the Cell C1, then the List of C2 Shows all Fruits other than Apple, But if in Cell C1 I select any fruit other than Apple it does not work... (Using Excel2007 & Win XP)

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Setting Widths List Box In Data Validation List

May 12, 2004

dear....can i set width in list box data validation (width in cell i set short).thanks

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Force Choice From List: Data Validation List

Oct 18, 2006

is there a way to force so that a cell value can be only of what a validation droplist offers, hence users can not enter their own values and have to use the droplist for cell content selection.

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