VS 2008 Deleteing Duplicates?
Mar 31, 2009okay i have have a textbox full of names say textbox1 =
austin
austin
john
[code].....
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VS 2008 Deleteing + Adding A Limit " Labels "
Sep 21, 2010[code]...
Using The Code above how do i set a limit of labels i place in run time ALso How Do i delete The Labels at runtime
Way Of Inserting / Updating & Deleteing Data In Database
Feb 9, 2012[code]The above code does not insert data into table. Please fix this issue.Tell me the proper and most widely used way of Inserting, Updating & Deleteing Data in Database.
View 16 RepliesInserting, Updating, Deleteing Data In A MySQL Database
Dec 8, 2009I'm trying to test some stuff out, like adding employees and stuff like that.
Now it used to run on an Access database, but I've made the jump to MySQL.
Now to add an employee I use this code
Private Sub btnOpslaanWerknemer_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOpslaanWerknemer.Click
Try
[Code].....
now I get the following error: "Error: MySQL.Data - You have an error in your SQL syntax; check manual that corresponds with your MySQL server version for the right syntax to use near '?,?,?,?)' at line 1.
VS 2008 : Get Values From Datagridview But Not Duplicates?
Jul 21, 2010I need to get all the different values from my dgv, but no duplicates, and add them as rows to my dataset.for example if my dgv col1 have the following values:
a
b
c
[code]....
the procedure must get the values from dgv1 and add it to a dataset if the values isnt already there.My dataset should have this:
a
b
c
d
e
VS 2008 Killing DataGridView Duplicates?
Jul 24, 2009I am trying to kill the duplicate fields in a DataGridView. I have it alphabetize all the items in the DGV and then compare each item down the DGV as long as it is either equal to or alphabetically lower than the next item in the DGV.Here is the code I'm using:
Do While X < data.Rows.Count - 1
' Compare 2 items next to eachother
compareResult = String.Compare(data.Item(0, X).Value, data.Item(0, Y).Value, True)
' Update the status
[Code]...
As I run it through more largely populated DGVs (200k items), I run into an InvalidOperationException saying that rowIndex=190000 (just some high number) is an invalid value for rowIndex.The error seems to appear more or less randomly.When tested on DGVs with 20k items, it seems to complete fine (though it may just be luck and the error isn't popping up).
VS 2008 Remove Duplicates From A Listbox?
Dec 15, 2009i 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]....
VS 2008 Remove Duplicates Of 2 Listboxes
Oct 22, 2010the 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]...
VS 2008 Removing Listview Duplicates...Again?
Mar 24, 2011I have 3 list views: (steps)
1...One column listview_AllAddresses, read from several .txt files containing email addresses (creating a list with duplicate entries)
2...One column listview_RemoveFromList, containing email addresses populated by textbox add or drag and drop from listview_AllAddresses (working)
3...One column listview_DuplicatesRemoved, where final list is to be diplayed without duplications entries and (no code yet) items from listview_RemoveFromList removed as well
4...Write to a .txt file containing adjusted list of email addresses
Private Sub Button_ImportSource_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button_ImportSource.Click
Try
OpenFileDialog1.Reset()
OpenFileDialog1.Filter = "txt|*.txt"
[code]....
Results are that I get is an exact list moved from ListView_AllAddresses to ListView_DuplicatesRemoved.
VS 2008 Image From Class Into ImageList - No Duplicates
Jun 26, 2009I have a Class that has an Image as property. A (possibly very high) number of instances of this class are added to a List(Of thisClass).
In a For Each loop, a new ListViewItem is created for every instance of the class in that List. The Image property of the class should now be the Image of that ListViewItem.
Now, a ListViewItem does not take an Image directly. Instead, I need to assign an ImageList to the SmallImageList property of the ListView, with a specified Key, and assign an ImageKey property to the ListViewItem.
Of course, I could simply add the Image in the Image property of the class to the ImageList, generate a random Key string, and assign that string to the ImageKey property of the created ListViewItem.
That does work, and gives me the correct image for every ListViewItem. However, it is not a very good solution I think, because, in total, there might not be more than like 5 different images! But there may be a LOT of ListViewItems, so there are a lot of duplicate images.
To prevent storing the same image 9183 times in the ImageList, I thought I could generate a Key to use based on the image. If the same image is then encountered later in the loop, I can see that this Key is already in the ImageList, and I don't need to add it a second time. Because they Key is then equal to the 'old' image, already in the imagelist, it will automatically be used for this Listviewitem.
I thought I could use the GetHashCode property of the Image, but apparently not...
Here is my
[Code]....
I thought this would work, but apparently the GetHashCode function returns a different number, even for identical images. I know the images are identical because I tried this by specifying the SAME image object as the Image property of the class, a few times. The GetHashCode is different everytime.
So is there any other property I can use, that is unique for identical images, but different for different images? Or am I going about this completely the wrong way? Or shouldn't I worry that there can be up to 10.000 duplicate images in the Imagelist?
VS 2008 Searching List(of String) For Duplicates?
Jun 28, 2010Okay so i have a very large list of string (500 000 strings) i want to check the number of duplicate strings and maybe even isolate the duplicate strings if i can.
i cant find a fast method to do so :S
i tried using a string array (slower than list) takes ~15mins
i tried using list with the code below takes ~10 mins
that wont cut it :S i need something faster.
[Code]...
[2008] Datagridview Drag Drop : No Duplicates?
Jan 18, 2009I am trying to drag & drop rows from datagridview1 to datagridview2 using the code below.My question is : how do I check for duplicates in the target datagridview before completing the drop.ie: If Jerry has already been drag dropped to datagridview2 then say, "Jerry is already in the list. Are you sure you want to add a duplicate ?"
Public Class frmDataGrid
' Some Properties that I have set for the Grid
' SelectionMode = FullRowSelect [For both the Grids]
' AllowDrop = True [For Grid DataGridView2]
[code]....
VS 2008 Nested For Loops - Going Through ArrayList And Finding Duplicates?
May 16, 2010I have an arraylist of a "Doctor" class containing Firstname, Lastname,etc. Some elements in this arraylist may be duplicates of others. I am trying to iterate through the arraylist and search for duplicates. Once i find a duplicate i want BOTH duplicates put into another array and removed from the original array.
here is my function
Public Function createArrayOfDuplicatesAndRemove(ByVal st As ArrayList)
Dim duplicates As New ArrayList()
Dim i, j As Integer
[code]....
How could something be out of range if i start at the end and work to the front?
Add My Duplicates To A Combobox?
Dec 13, 2011How can I add my duplicates to a combobox[code]....
View 3 RepliesAllow Duplicates In The Primary Key?
Apr 15, 2010I 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?
View 4 RepliesDuplicates Primary Key
Jun 6, 2011i 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.
How To Ensure No Duplicates
Feb 20, 2010I 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?
No Appointment Duplicates?
Apr 18, 2010I 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.
View 1 RepliesRemove Duplicates From Dgv?
Jun 20, 2012i 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)
View 4 RepliesW/ Duplicates In Xml File?
May 5, 2011I'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]...
Way To Delete Duplicates
Feb 6, 2009I 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]...
View 1 Replies.net - Get Duplicates For Two Columns With LINQ
Sep 23, 2011LINQ drives me crazy. Why does following query not return the duplicates, whereas it works with only one identifier? Where is my error?
[Code]...
.net - Group Duplicates With Counts?
May 6, 2011I 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]...
Avoiding ListView Duplicates
Jan 19, 2009Im 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?
View 6 RepliesC# - Find Duplicates In ArrayList?
Jul 27, 2010I 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.
Checking Datagrid For Duplicates
Oct 15, 2011I 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]...
Checking For Similar Duplicates?
Sep 4, 2009I 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?
View 7 RepliesChecks For Duplicates Before Insertion?
Jan 16, 2012Im 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]...
Find Duplicates In A Array?
Mar 23, 2012I have a huge unsorted array of strings like
vector = {"2421024141", "325216182","2463112099","2416997168","11114721047","4116940195","1191138134","231244164123 ",..........}
[code].....
Find Duplicates In Two Arraylists?
Oct 28, 2011I 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.