Check When There Are 2 Same Items In A Listbox?
Nov 27, 2010I don't want that my webbrowser go in the same website two times.[code]...
View 4 RepliesI don't want that my webbrowser go in the same website two times.[code]...
View 4 RepliesI have code that i wish to run every time an item is highlighted in a listbox, or that highlighted item changs to a different item in the same list.
Atm, i am using 'Handles lbDiscoveredDevices2.SelectedIndexChanged' where lbDiscoveredDevices2 is my listbox. I dont think this is right as if i click any blank area in the list...it runs the code, and trys to refer to highlighted items, that arnt highlighted = error.
I have a listbox, textbox, and a button. every time I push the button, an item from the listbox is put into the textbox. when the button is pushed again, it grabs the next item in order and puts it into the textbox. so on and so on until it gets to the last item. once I get to the last item it keeps repeating the last item over and over again. SO what I was wondering is how do I get a messagebox or some sort of checker to tell me when it has moved the last item from my listbox to the textbox?? PS textbox2.text=0 and every time the button is pushed another number is added to the value of textbox2.text. so basically if I could figure out how to grab the value of lines at any given time in listbox I could call a msgbox up!! here is the code I am currently using[code]...
View 3 RepliesFirst how do I check if each listbox item in a listbox contains an expression (Regardless of how many items there are in the listbox) and secondly how would I replace that with text that I want
So, if the First item in the listbox contained "Http%$$" then how would I change that to "Http:" without affecting the rest of the text in the item
Here is the code I have so far
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I don't know what is wrong with this code, but it is not detecting when there are no items in the listbox. It ALWAYS returns that there is something in the listbox, even when there is not and keeps erroring on the line of code in BOLD.[code]
View 1 RepliesWhy is this code having the opposite effect? If It's checked in the checkedlistbox it's not check in my view, if it's not check in my checkedlistbox it is checked in the grid.
EDIT: More specifically. The CheckState.Checked is always the opposite. .Checked means it's not checked.
Private Sub CheckedListBox1_ItemCheck(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs) Handles CheckedListBox1.ItemCheck
Try
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How Can I have Check items in a Listbox for a text that is = to Label/Textbox
I want to control a Counter I have
Label.Text = Val(Label.Text) + 1
To add the Count
I am using VB.NET (version 2008). I have two types of items populating in a listbox (checked listbox). For example: lets say one is type "A" and other is "Type B". Their names maybe same so if the user sees those items in listbox then he won;t be able to determine their type until he click on them and checks out its properties. I wanted that I add each item to listbox and colour them so that blue for example means type "A" is there and red means the other. So this way I will be able to know at a glance that how many item of what type is present. I guess it may not be possible to do that in a standard checkedlistbox. I am also using component factory's krypton controls which enhance the gui of an application. But I dunno if I can progress using that.
View 5 RepliesSo I want it to remove any text in the list box that has a "Job" in it and just replace it with a blank nothing.
Like if the listbox looked like this
Yardjob
jobsong
redjob
then it would change it to this
Yard
song
red
I also would like a way of removing any blank items from the listbox.
[URL]
A couple of questions about check list boxes:
How to check/decheck all the item in the list How do you copy or delete all checked items in the list
I am using the below code to find all the items in a listbox using vb.net 2005. But how can remove the non searched items from the listbox after searching?
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I am trying to remove items from a listbox based on the items on another listbox, this seems simple but apparently[code]...
View 1 Repliesprobs a simple answer but my mind is blank atm. I have this code to move all items from listbox3 to listbox1 but it wont move them unless i select 1, then it moves all items.
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I'm making an application that does some stuff involving the given subject, so this is very crucial to the completion and efficiency of my application.What I'm in need of today is simple (well, "seems" simple). I have one listbox that I want to populate with directories file's names. I don't mean the files inside the directories, but the names of the folders inside the directory.So, I have "c:empdog", I'd click on my button or whatever and search for the directory and I choose "temp", said listbox would show "dog".
UPDATE: Oh, BTW. It doesn't HAVE to be a listbox, it can be anything (IE: Textbox, Labels, Etc.).
my homework question is to display the selected items from a listbox (multi-extended) in a label. I need to display all the selected names in a label. the simplest most uncluttered way of doing this. This is what I've got but it doesn't work.
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I have a List(Of DateTime) items. How can I check if all the items are the same with a LINQ query? there could be 1, 2, 20, 50 or 100 items in the list.
View 1 RepliesI'm trying to add items for the listbox.
Code:
lstNewstudents.Items.Add(astudent.Studentname & " " & astudent.StudentId & " " & astudent.StudentAddress & " " & astudent.StudentCity)
& astudent.studentstate & " " astudent.studentzip & " " astudent.studentphone & " " astudent.studentemail & " " astudent.studentmajor
But I get a syntax error for an &, I also am trying to add items to to combo box(all the U.S. states), but none are showing in the list when I run the program.
I have a botton name ADD ALL which i want to use to add all students to ther other listbox at once and the process them for admission but my code is not working for me and i am stucked.[code]...
View 1 RepliesHow do I add items to a listbox control by using < ListBox.ItemTemplate> ?[code]..
View 1 Repliesi have a listbox in form1. i am adding contents into the database in form2. i want to update the listbox in form1 with the newly added items in form2. i am using vb.net n microsoft sql server.
View 10 RepliesI have a project with a listbox and the listbox contains several items. I want the listbox to contain items only once. Any item must be unique and shown only once.
View 2 RepliesI'm trying to add a number to a listbox that a user enters into a textbox. The program crashes when I press the button.
Public Class Form1
Dim numbers() As Integer
Dim numNumbers As Integer = 0
Private Sub TextBox1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox1.KeyPress
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I have a list with a boolean value as one of the properties. I need to check if every one of these is true. Now normally LINQ would give a nice clean answer here, but as I am using .NET 2.0 I can't use that.If there a nicer way to do this or am I going to have to do a for each loop and break out on finding a false?
Edit:Seems I could have been a bit clearer. I have an object in a list (eg List (Of MyObject)). There is a boolean property on this object called Processed.I need to check that all objects in the list are processed.So in LINQ I'd do:if (from o in list where o.processed = false select o).count = 0 then....
How can you check all the checkboxes of all the items in a listview?
View 2 RepliesMy application is in VS2008 coded in vb.net.I have a form with a datagridview which loads data from databaase.there is one column where data is stored separated by comma's.Like Name,Surname,LastName name this column as Testing.I have a checklistbox on another of my form.When the user selects a particular row from datagridview another form open and the row selected records are populated in the control of my other form.My issue is i want to check those items of my checkbox that are present in my Testing Column.I have used and array im able to fetch the records just im not able to check the items in my checklistbox that are present in the column
Below is my code
chkList is my checklistbox controls
FORM1 is my form that has datagridview
Below is the code of my second form that has checklistbox
Dim classesChecked As String() = FORM1.DATAGRIDVIEW.Item(10,FORM1.DATAGRIDVIEW.CurrentCell.RowIndex).Value.ToString.Split(",")
For i As Integer = 0 To classesChecked.Length - 1
Next
how can i check the items of my checklistbox.
I have this issue right now. I have a listview with checkbox. Now what I want to achieve is get all the id (hidden column) of all check items and pass it to arraylist so that I can pass it to SQL like this:
dim intProductID as new arraylist
For i = 0 To lv_list_products.Items.Count - 1
If lv_list_products.Items(i).Checked = True Then
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"DELETE * from t_products WHERE f_product_id in(" & intProductID & ")" The reason I do this is to have only one time open of database connection, One of the member suggested it is not good to open and close database specially if it is within the loop. One more issue is the command within the array I need to separate all id with commas so I will not have error on SQL.
ok in vb6 i would use this to check all items in a listview.
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Now Here's my confusion. And i spotted at least one other person on here who was asking the same thing about this.But got no real clear answer that i could see. as a test to compare i tried his suggestion and loaded the same listview up in both a vb6 app and a vb.net app..The list i used was quit large so the comparison would be very through..my list was in the 80,000 lines range tho..yeah talk about overkill The vb6 app checked/unchecked the items within a matter of milliseconds..the vb.net took an extremely long time tho..well not extreme but was very noticeably slower about doing the loops.
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i have a list of items in a listbox and i want to move all of them into another listbox. I'm using a loop to do this but it always generates an exception anytime the loop's counter equals 2. Currently there are only three items in the former listbox. The first and last items are moved correctly except the second.[code]
View 1 Repliesi want to have 2 listbox. the first listbox is for the Main category and the other one is for the sub category. and by using sql 2005 for the database.
for example my main category for the 1st listbox is
ADIDAS
CONVERSE
NIKE
SKETCHERS
and when i click one of the main categories it will output the sub categories to the 2nd listbox.
i want to add all items from my listbox into a database. the first item has to go into the first row of the table followed by the second item into the second row followed by the thir in that order. I have already created the connection with the database. I now want to write an insert query to insert the items into the table with the sql command in a loop but i don't know how to get each item from the listbox and add it to the insert statement. I want to assume that non of the items in the listbox has been selected.[code]
View 1 Replies