Remove Duplicates From Dgv?

Jun 20, 2012

i use csv file to populate my dgv. now i wanna eliminate duplicates from my dgv. i knew it could be done using unique datatable. but i wanna eliminate it from dgv not from the dataset or datatable.to understand it in better way- i wanna check column1 if the vales in column 1 are repeated then the entire row must be deleted i.e the duplicate row must be deleted( if column 1 has 2 duplicate values then 1 row must be deleted)

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Remove Duplicates And Originals?

Apr 28, 2012

I have a String which contains the following[code]...

give me a VB.NET code for this?

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Feb 23, 2010

I fail to remove duplicates from my List. What am I doing wrong?

Dim Contacts As New List(Of Person)
...
' remove duplicates '

[code].....

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May 31, 2011

[Code]...

I build up the ItemList array with the above code. How do i remove any duplicates in this array?

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Sep 1, 2009

I want to remove duplicate values from a string using VB.NET. If values = "3,40,15,109,15" then I need the end result to be "3,40,15,109". I'm using the code below but receiving the error message 'Value of type 'String' cannot be converted to '1-dimensional array of String' and I'm not sure how to proceed.
 
Dim values As String
values = lblIDList.Text
'Remove duplicates
values = RemoveDuplicates(values)

[code]....

Value of type 'String' cannot be converted to '1-dimensional array of String'.

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Oct 2, 2011

2.0 28 Blue (2 14.00 63.0) [2 12.43 54.3] 42111 9275 55111 -1725
2.0 28 Blue (2 14.00 64.0) [2 13.50 55.3] 40611 9275 53611 5775
2.0 28 Blue (2 14.00 58.0) [2 12.21 54.3] 49611 9275 55111 -3225

[code]....

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Sep 3, 2010

just to finalise this, how can i remove duplicates? i have tried this:

[Code]....

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Apr 6, 2012

I have the following coding in place which basically edits my text file, however with the information that is shown in the text file I want to remove all duplicates, is this possible?

Dim path As String = "c: est1.txt"
Dim sb As New StringBuilder
Dim sr As New StreamReader(path)

[Code]....

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Feb 10, 2012

Depending on the data being used, I can have up 10,000 items in each of the 2 ListBoxs. I need to find and remove any Duplicates between the 2.I am currently using the method of select and Item from Listbox1 and search in Listbox2. If I find a match, then remove both items. This goes back and forth until all the duplicates have been removed. This take some time.Currently have the code in Old VB6 and VB2008 Express.

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Jan 16, 2009

I have my code it is able to read a text file and do checks each line if there are 7W and 5L in that particular line, if no matches it will remove that line... 1 problem i face now is that, there are duplicates in my textfile..Im not sure how am i going to remove the duplicate in the text file. I want to know if there is a way to integrate an additional function inside my code to check if that particular line is a duplicate so i can accomplish 2 tasks at 1 time... Since there are about close to 1million records in my text file.

[Code]....

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Remove All Duplicates In A Data Table In .net?

Oct 7, 2011

Consider my data table

ID Name
1 AAA
2 BBB

[code]....

Final Output is

2 BBB
3 CCC
4 DDD

How can i remove the rows in the data table using Vb.Net

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Apr 23, 2010

This seems like a simple question, How do i remove duplicates from a string collection?

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Mar 1, 2012

I have a dropdownlist with some duplicate items on it. I intended to remove them by using LINQ, but do not know how to do it.

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Feb 26, 2010

I know how to remove duplicates in an array (have a simple function for that) but now I was trying to do the same in a matches collection and I can't get anything to work somehow.

In this case the matches collection has a few duplicates that I want to remove.

Dim matches As MatchCollection
matches = Regex.Matches(sExtractedText, "word=""[dw]{8,30}""")
For Each match As Match In matches

[Code]....

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Sep 8, 2009

I have a semicolon delimited string (e.g. an EMail Address List returned from a database or a textbox). How do I separate the string into an array, sort, and remove duplicates? The code below works to separate the string and sort the results, but doesn't remove the duplicates. I could probably then loop through the array and copy to a new array to eliminate the duplicates, but there must be a better way to do this using the VB.Net Array, String, and Collections handling classes.

Dim s As
String =
"Test; Test8;Test1;Test2;Test3; Test8;Test4;Test5; Test6"

[code]....

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VS 2008 Remove Duplicates From A Listbox?

Dec 15, 2009

i have a listbox and i need to remove duplicates (that can be more than 2)
i try this way but doesn't work...

For i = 0 To ListBox2.Items.Count - 1
For j = 0 To ListBox2.Items.Count - 1
If ListBox2.Items.Item(j) = ListBox2.Items.Item(i) Then

[Code]....

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VS 2008 Remove Duplicates Of 2 Listboxes

Oct 22, 2010

the question states im looking to remove duplicates from a textbox in the sense that i have two textboxes like this

[Code]...

My goal here is to remove item 1 and 3 from the first listbox if it exists on the 2nd listbox, ive searched for 30 minutes to no avail, found a similar question on how to do it in vb but still didnt give me a idea on how to do it relating to vb.net also this is more then one instance,

[Code]...

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VS 2010 - How To Remove Duplicates In ListView

Jun 7, 2011

Ok, I found some code online on how to do this, but they only compare the Listview.item.text, and they don't care what is in the entire ListViewItem. Is there any code to remove duplicates in a ListView that checks to see if all the subitems are the same as well and THEN removes the entry? [Code]

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VS 2010 Remove Duplicates From Listbox?

Sep 27, 2010

I started programming Visual Basic .NET a few weeks ago. I wanted to make a tool to remove duplicate lines from a listbox. I have the following

Dim strItems As New List(Of String) 'Make a list with originals
Dim strDup As New List(Of String) 'This list contains the duplicated lines

For i As Integer = 0 To ListBox1.Items.Count - 1

LabelChecking.Text = "Checking for duplicates: " & i & "/" & ListBox1.Items.Count - 1
Application.DoEvents()
If strItems.Contains(ListBox1.Items(i).ToString) Then

[Code].....

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Nov 17, 2010

I'm trying to make a snippet that will remove duplicate lines from text files. However, I seem to be mixing my for loops up.. does anyone know a simple way that I could do this?

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Dec 13, 2011

How can I add my duplicates to a combobox[code]....

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Apr 15, 2010

I have a database running on SQL server primary key is all set, my question is i dont want to allow duplicates in the primary key, i want everything to be uniqure. The database already has information in it, is there a away to set it so when i add a new row through the table adapter that it will recognise the last primary key value and increment it by +1?

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Jun 6, 2011

i has create system registration that use vb.net 2008 & accessdatabase (oledb connection).i set ID

as primary key,when i insert new ID but if ID already in database i will get error cz data

duplicates..so anyone know any code that will promp mesej like this "Data already in data base,

insert ID corectly" if data already in accessdatabase.

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Feb 20, 2010

I have a problem with ensuring no duplicates. I have an Appointments form (frmAppointments) and within it exits 4 date time pickers. The first 2 date time pickers are dedicated to creating an appointment date whilst the other 2 are for the purpose of changing an existing appointment date. When the date and time is entered into either one of the pairs (of date time pickers), the values inside get transferred to 2 corresponding textboxes. The user then clicks Save (btnSave) and the values are saved to sql.

How can I ensure no duplicates (of the date and time) can be created?

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Apr 18, 2010

I have a problem with ensuring no duplicates. I have an Appointments form (frmAppointments) and within it exits 4 date time pickers. The first 2 date time pickers are dedicated to creating an appointment date whilst the other 2 are for the purpose of changing an existing appointment date. When the date and time is entered into either one of the pairs (of date time pickers), the values inside get transferred to 2 corresponding textboxes. The user then clicks Save (btnSave) and the values are saved to sql.

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W/ Duplicates In Xml File?

May 5, 2011

I'm reading and writing to an xml file and am looking for a way to identify and delete certain nodes.  Below is an example depicting the data as rows with each row sequenced in "Sortorder".  As you may note, "Sortorder=1" data is there twice.one row containing data... the other not.   I'd like to keep the row containing data and delete the one that has blank data elements.

[Code]...

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Way To Delete Duplicates

Feb 6, 2009

I have 2 files one is located at ("C:DNSREDIRlocked.txt") the other is ("C:DNSREDIRcustomb.txt"). What i'm trying to do is that i need to add the text found in customb.txt file to the last line in blocked.txt and remove any duplicates found in blocked.txt. [code]...

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Sep 23, 2011

LINQ drives me crazy. Why does following query not return the duplicates, whereas it works with only one identifier? Where is my error?

[Code]...

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May 6, 2011

I need to go through a list of strings and count the number of duplicates and then print the string with the number of occurrences in one line to a file. Here is what I have but I need to only print the string once and its count.

[Code]...

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Jan 19, 2009

Im adding listviewitems and want to avoid duplication. Now currently, I have resorted to looping through the listview and comparing each items text property against what Im adding. But for a big table this is very slow. The ListView has a .Contains Method but this does not seem to do what I would have assumed; for example [code]Is there a way of doing this so I dont have to loop through all the items?

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C# - Find Duplicates In ArrayList?

Jul 27, 2010

I have to check duplicate records in ArrayList. In ArrayList each item should have atleast 2 times before insert new Item. Per example

Example 1:

AL(0) = '1'
AL(1) = '1'
AL(2) = '2'

[Code]....

Method has to return = 'false', because '2' has 1 time in the list. So I dont
want insert '3' in ArrayList and return false.

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Oct 15, 2011

I want to track orders for my small furniture factory. I want to create a tracking number based on the OrderNumber+ProductID+SeriesNumber.It should look like this:
10085-88-01

[Code]...

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Sep 4, 2009

I have a web site where users enter company names to use in the rest of the app. However, recently I've noticed that similar duplicates are appearing, e.g. someone will enter EastTec Solicitors another will enter EastTec Solicitors Ltd someone else will enter EastTec Solictors (missed the i out in Solicitors), when there should only be one entry of EastTec Solicitors. What is the best way of checking the database for entries similar to what they have entered? How would you about checking for spelling mistakes as well like the Solicitors one?

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Jan 16, 2012

Im confused on how to write a code on checking duplicates before insertion on vb.net. I know the sequence on how to do it but its kinda confusing when writing a code. 

1.) Create a query that will check if the mobile number already exists on the database

2.) If not, insert the new data

3.) Else, a message will prompt that "You are already registered".

writing this in PHP is kinda easy for me but in vb.net.. , unfortunately, not easy.. Im still a beginner on vb.net.

[Code]...

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Mar 23, 2012

I have a huge unsorted array of strings like

vector = {"2421024141", "325216182","2463112099","2416997168","11114721047","4116940195","1191138134","231244164123 ",..........}

[code].....

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Oct 28, 2011

I have searched high and low for a solution yet still no luck, I have two arraylists populate with FileInfo and I want to compare the two and write the duplicate (matching files) to a listbox.Here is how I have populated the arraylists but in terms of the comparison I have not found anything that works:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim arraylist1 As ArrayList
Dim arraylist2 As ArrayList

[code]....

What can I do next to compare the two and write the duplicates to ListBox1.

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Feb 25, 2010

I have a set of labels (16 to be exact) that I need to avoiding duplicates with. The 3 dropdowns get conceited to create the string at the end in the label. Two options I have are to wait until they click the "Generate Names" button to find all the duplicates, or to find the duplicate as soon as the 3rd dropdown box index changes (preferable).

All the labels have a similar name: cAname (where A = a number 1 through 16)
c1name, c2name, c3name etc.
I just need to loop through them, edit the border property of the labels that are the same.

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Oct 15, 2011

i have a list of record that already populated but my problems is How to find out if there are any duplicates? VB.NET

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Mar 25, 2012

I am trying to find duplicates in a string. The code works more than I would. The purpose is to create a jagged array with values and positions like this one:

myString = "1123464263948465475965069068547363532627281901"
jagged= {{{1},{0,1,42,45}},{{2},{2,7,36,38,40}},{{3},{3,9,31,33,35}},{{4},{4,6,11,13,16,29}},.........}

Value Positions
1 0,1,42,45
2 2,7,36,38,40
3 3,9,31,33,35
4   4,6,11,13,16,29 ......... and so on with unique keys and multiple or not values.

My code do this, but looping all over the string there a moment when it repeats values and positions, because already found them earlier. How do I make to keep just the UNIQUES? How do I skip the loop when the value is already in?

My code below
Public Class Form1
Public myString As String = " "
Public jagged()() As Integer
Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
myString = "1123464263948465475965069068547363532627281901"
jagged = New Integer(myString.Length - 1)() {}
[Code] .....

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Aug 21, 2009

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Oct 8, 2011

i am currently having two problems with this assignment. The program allows the user to add new students to a listbox with a unique Id, lastname and test average. When adding a new student to the listbox, part of the assignment is to not have duplicate students added. I am currently stuck at trying to figure that out. I have figured out how not to have duplicate courses under the course information form but when trying similar code for adding a student i cant get anything i try to work. the next problem is when searching for a student from the list and clicking on the Course Information button, the course information added for that student needs to be displayed. My problem is getting the student searched information to show up right, but if i add three students and search for the first one i added and click on course information button it only shows the last student i added. this is my code for the whole program

Public Class Form1
Private allStudent As New List(Of Student)
Private currStudent As Student

[Code].....

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Jan 27, 2011

I'm trying to create a "LOTTO" number picker, but I don't want to have more than one TextBox. And I also don't want duplicates in that single textbox. The program randomly picks six numbers from 1 to 30 (Sorry I don't have the code at the moment).

My code runs fine, but I keep getting duplicates in the textbox. (I'll update as soon I have the code.)

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Jan 16, 2011

i have a datagrid which i add values with this code

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What i want to do is to prevent duplicate entries of values in a column.I am using this code but it is not working.

If Me.dgAppraisal.Rows.Count > 0 AndAlso Me.dgAppraisal.Rows.Contains(Me.cmbAssementArea.Text) Then
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[Code].....

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May 5, 2009

I am passing in an xml document to a function that takes the data and parses into a datatable.

Based on the xml file below, how would I capture text from multiple nodes with the same name, example 'Industry' below?

Is there a easier way to import an xml file into an object and read it?

HTML

<?xml version="1.0" encoding="utf-8"?>
<Resume xmlns="http://hj.yahooapis.com/v1/schema.rng" xmlns:yahoo="http://www.yahooapis.com/v1/base.rng"

[Code]....

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Mar 31, 2009

okay i have have a textbox full of names say textbox1 =

austin
austin
john

[code].....

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