VS 2008 Killing DataGridView Duplicates?
Jul 24, 2009
I 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).
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Jul 21, 2010
I 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
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Jan 18, 2009
I 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]....
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Aug 24, 2009
I want to be able to disable Alt+F4 and the X button. I was able to do that, but it disabled Close() too. I want my app to be able to terminate its own process. How would I do that?
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May 19, 2009
I am developing an application which launch an external windows app, ei called APL.exe Also, this APL.exe launch two console utils, ie. named CON1.exe and CON2.exe I would like to know if is there any way, after APL.exe has died, of killing CON1.exe and CON2.exe, because there is a small possibility that they will not died completly after APL.exe has exited.Also there is another requirement. My final app version could be executed twice in the same machine, so there could be two instances of CON1.exe and CON2.exe, and because this I need a way to kill them not by process name, but knowing which of them has been launched by my current application instance.
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Mar 7, 2010
I'm using the namespace System.Diagnostics. I need to check if there is a Windows process called "gospeakx.exe". If exist the "gospeakx.exe" process, end it. Does anyone know how I can do this?
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Jan 16, 2011
i have a datagrid which i add values with this code
Me.dgAppraisal.Rows.Add(Me.cmbAssementArea.Text, Me.NumericUpDownArea.Text, Me.txtremark.Text, Me.txtcoment.Text)
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
ErrorProvider.SetError(Me.dgAppraisal, "Employee has already been assessed on
[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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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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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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Mar 24, 2011
I 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.
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Jun 26, 2009
I 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?
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Jun 28, 2010
Okay 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]...
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Jan 22, 2010
I want to be able to kill an application (iFix) using VB 2008 express. How can this be done. I have used the following in the past with in iFix using its own VBA but I want to be able to do it with an app that I am creating.[code]...
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May 16, 2010
I 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?
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Jul 8, 2010
I am creating an updater for my program that runs in a separate process. I need it to be able to close the program it's updating before running the new setup, but I do not want to use Process.Kill() because that could cause data loss. How can I safely close another application, as if the user had clicked the "X"?
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Dec 4, 2010
New connections will be remembered. [code] keeps saying that it does not exist, and yes TextBox1.text = "winxp-base02".It clearly shows in CMD with net use that the connection does exist, anyone know Why I can't kill IPC$ or from what you see should work?
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Sep 16, 2011
In my program I have a thread in the background that runs an infinite while loop. If I want to terminate the thread, I break the while loop, and the thread runs to a stop. However, if close the form without stopping the thread, it just keeps running. I tried both aborting the thread and exiting the while loop in the closing form method, but without succes.
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Aug 6, 2009
I want to check whether a process running in remote computer or not and if it is running, kill it.I am using following code but, it gives error "Couldn't connect to remote machine". Do I need to do any security settings in the remote pc where I am connecting?
For Each myObj As Process In System.Diagnostics.Process.GetProcesses("192.168.0.138")
If myObj.ProcessName.Equals("HomeAlarm System.exe") Then
myObj.Kill()
End If
Next
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Sep 29, 2010
How is that possible? I want to check all the software a few seconds if the program has tripled works and then you close it automatically[code]...
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Apr 6, 2009
When starting my application, I have a couple of classes which are required to read certain files in order to create a set of default data. The logical place (to me) to do this is in a Shared class constructor; the idea would be to throw a class-level event if the reading of the defaults file fails. Unfortunately, this does not work as attempting to access such an event, in order to attach a handler to it, fires the class constructor before the event has been attached. In a failing case, the constructor starts, fires the fail event, the constructor completes, and then the event handler is attached, after the event has fired.
The only other solution I can think of is to give the class a "typeInitialisedSuccessfully" boolean property and put a try/catch block around every call to construct an instance of the class, which seems unnecessarily kludgey to me. Can someone suggest a more elegant solution?
EDIT: Because this is a fundamental Class, used in one form or another across nearly all of our software tools, I would greatly prefer a solution that will notify future programmers that the type initialiser needs to be called, which is why I initially went towards the Shared Constructor as a solution.
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May 10, 2012
How can I kill the excel.exe process in SSIS during the data flow task when it fails? There could be multiple instances of Excel.exe running from other packages that are perfectly valid so I don't want to loop through all instances killing them.My problem is that during the data flow task the process will sometimes fail due to a sheet that is named incorrectly or missing columns. This keeps an instance of excel.exe running which is now an orphan task eating up resources so it needs to be killed.At the same time there are other SSIS packages running that are accessing their own excel.exe process and aren't having any issues. So how can I kill the orphan excel.exe process without impacting the other excel.exe process?
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Apr 16, 2011
I'm attempting to make a very simple game where the player clicks a button, a label is spawned, travels across the screen, and the player tries to "shoot" the label by clicking on it. So far, I can make the labels spawn and move, but whenever I spawn a new label, the previous one stops moving. Also, I can't figure out how to remove an object from the form by clicking on it. Here is my current code:
[Code]...
Edit: I'm currently expanding the game to include more enemies and features.
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Sep 3, 2009
I'm creating an app in VB2008 that needs a function that automaticly closes the processes "iexplore.exe" and "firefox.exe".
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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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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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