I have a for each loop, that loops through a listbox of values.I want to remove the item from the list box, after i process it. Will removing the item, from the list messup the current count the for each is on?
View 10 RepliesHow can i remove an array item by selecting an item from listobx and press remove/delete button?for an example, if i want remove index 2 from listbox, so the array should remove index 2 item and move the item of index 3 to index 2 and so on.
View 7 RepliesI am trying to remove an item from a String() (just splitted a text into lines to that string()), and could not find how to do this. Are there even ways to do this?
View 4 RepliesHow would you remove an the last item of the list (of strings) when you don't know the index of the last item and it varies every time you run the program? Would I be better off using an array instead?
View 2 RepliesI am having problems removing an item from a List(Of Integer). I see you can remove it by doing a remove with the index, but I assume you can do some type of function where you provide the value that you want to remove and it removes it. I found it on the List(Of String), but not Integer.
View 1 RepliesI'm pulling data from my DB, adding it to a DataTable and binding that DataTable to my DataGridView. Before I bind the data, I need to change/remove some data. When I loop through the rows and use a Select Case, just for this column, it doesn't work. But if I use an If, it works fine. [Code] In the example above, the "Pass_Flag" row works just fine, but the "FailureCD" does not. But after the Select, with the If statement, it works. In the example, I'm casting the row as a string first and then an integer. I tried casting to an integer in the select case and it doesn't work either.
View 4 RepliesDoes anyone know how to do this? I'm stuck on a boat right now out to sea(Navy) and don't have access to vb.NET, its in my berthing...
So someone clarify this code and see if it works?
Dim index As Integer = list.FindIndex(Function(value As String)
Return value(0) = "STRING HERE"
End Function)
I have used the command:
For Each Proc as process in process.getprocesses
Combobox1.Items.Add(Proc.MainWindowTitle)
to populate a combo box with the list of current process windows, however for every process that doesnt have a main window title there is a blank space, is there a way that I could tell it to not insert the item if it's mainwindowtitle field is blank?
I need some code that goes through each item in a listbox and executes a for next loop for each item
View 9 RepliesI have a listview with 4 colunms
Private Sub process()
Dim datenow As String = ITEM HERE
Dim name As String = subitem1 here
[code]....
I dont know how to get each (row) id call it even though its a colunm and add the item and its 3 sub items to my variables.
I am iterating through the table rows . if the row row is null I just want to remove the row.[code]....
View 2 Replieslearning about loops (still a beginner) in VB.net. I have got the below code and basically it is meant to stop the loop once it reaches a number above 20. Now, the problem is that it does stop after number 20 but the last number that is displayed in the list is always above 20..... how I can stop it showing the last number as above 20?
[Code]...
I have a string of 10 vbTab. How do I make a loop that takes away a vbTab until I have 1 left?
strTabs = vbTab & vbTab & vbTab & vbTab & vbTab & vbTab & vbTab & vbTab & vbTab & vbTab
Do Unitl strTabs = VbTab
.........
Below is the code that will and does add to listview1 when triggered, but, will not remove it. I have spent a lot of time trying to figure this one out. There is not any error even when I step through.[code]...
View 2 RepliesIm working on a program for a class project and part of it im required to remove one selected item from a listbox, in my case "lstCart" i have to first check if there is an item selected by the user, in which case i have to remove that item. Secondly, if there is no item selected i have to display an error message telling the user that they have not selected any item to be removed. Can anybody help me with this code? Ive tried a sort of nested if statement but that didnt seem to work very well.
View 2 RepliesI'm loading a file into an ArrayList, then looping through the ArrayList and each time adding a DataRow to a Datatable, then using the Datatable as the DataSource for a GridView. My problem though is that the file has one field at the end that I don't want to display. I'm not sure though how to not to add it as a DataRow or what to do so that it won't be displayed. Do you know what I might do. This is my
' Declare and setup a StreamReader object to read the file
Dim objStreamReader As New StreamReader(fname)
Dim arrText As New ArrayList
[Code]....
I have a BindingList (of Class) list that is the source for a datagridview and I'm trying to figure out how to remove a selected line from the list.[code]...
View 2 RepliesI have a listview that has multiple entries and each entry has 2 subitems. I am wanting to know how to remove each item in the listview where the subitem(1) equals a certain string.
View 1 RepliesI'm having trouble with removing an item from an ArrayList. I've done it many times, I just can't seem to figure out why it's not working this time around.[code]...
View 10 RepliesI need a piece of code which will remove a highlighted item from a listbox.
View 3 RepliesI have a listbox that have some dates, what i need is to check every date if it is found in my database or not if yes i need to delete this item. i tried to do it but it gives error "InvalidArgument=Value of '3' is not valid for 'index'. Parameter name: index"
[Code]...
Tell me what I am doing wrong with this coding as it seems ok to me?
If any items in listbox2 is identical to items in listbox1 then remove from listbox2.
[code]...
I have an array list declared globally as
Dim OnGraph as new ArrayList
I also get these two debug error.
remove selected items from a listbox using a for each loop?
View 5 Repliesi don't have any idea how to remove or prevent duplicate item in a listview when ever you update it or insert value to your data base.
View 5 RepliesMy program is bringing in a list of part numbers into a combobox and the items in the combo box have "L:" in front of the part number and I want to get rid of the first 3 characters but am getting a message that says the remove function is not a part of the combo box class.
View 5 Replieshow to delete a item from the context menu.. i can add a item with this code:
Private Sub Button7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button7.Click
ContextMenuStrip4.Items.Add("delete file")
End Sub
no problem there. and to delete this item, i figured since it is the 4th item in the contextmenu (and i can't type the "delete file" either w/o error) it would delete it by index, with this code:
Private Sub Button8_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button8.Click
ContextMenuStrip4.Items.Remove(3)
End Sub
the (3) is giving me a error "value of type 'interger' cannot be converted to 'system.windows.forms.toolstripmenu'".. i think that means that the context menu does not support indexing.
How do I remove an item from an array at a specified index? This code copy's the index and then adds the indexes until it gets to the one you want to remove, skip it, and try to continue. But I get so many errors. From being out of the bounds of the array, to just being null for some odd reason. [Code]
View 5 RepliesI use this function to remove items in a listbox that I add programatically.. using the item.add.But i need a value with it so switching to databound ListBox. How can I remove an item or add an item without getting an error that "Items collection cannot be modified on a databound object"[code]...
View 2 Repliescan i remove an item from the middle of a queue?
View 1 Replies