Forms :: CheckedListBox Set From File
Jul 30, 2009
I am an ad-hoc VB application writer to ease my day to day office activities. I started with VB6 and now using VB.net 2005.
I have a CheckedListBox (chkList01) with 130 items. By default all items are checked. Every 5min would like chkList01 to refer to a text file (list.txt) and update the checked state. The list.txt file will have a value per line (True or False) for all 130 lines. An external application will update the list.txt file every 5min.
So every 5min my application will refer to the list.txt file, and row by row see if the value of the row is true or false. If the row value is false then it will change chkList01�s checked state to false.
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May 12, 2008
I need to produce a list of checked entries from a CheckedListBox whenever an item changes, but that ItemCheck event gets thrown before the item's status is actually changed so the checked items list is incorrect.I found a forum post telling to use the SelectedIndexChanged event instead, but that won't work if the user checks the item using the space bar.My two alternatives are to :1. Use the ItemCheckEventArgs to figure out what item changed and how. Since the code that gets the list of checked items is a few methods down on the calls hierachy, I would need to pass the event args around (or more likely an homemade representation of its data for consistency).
2. Use a class member boolean to see if I'm in the ItemCheck event handler and set the item's checked state to its correct value before calling the method that does the processing. The boolean is used to avoid an infinite call of the event handler, it would just return without any processing in the case the event handler is in the call stack itself.
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Feb 4, 2011
The end result I am looking for is I want to add File Paths to a CheckedListBox. I only want certain file extensions and if a file by the same name but a specific extension exsists allready then I do not want to add those files to the CheckedListBox.
Example: I am only wanting these filetypes in my CheckedListBox (.gif, .tif, .bmp, and .jpg).However if the filetype (.PNG) allready exsists with the same filename (i.e. image. png and image.jpg) I then do NOT want to add that JPG. Only files that do not allready have a PNG with the same name. (I hope I was able to make this clear)
My current code will add the filetypes (.gif, .tif, .bmp and .jpg) to the CheckedListBox. However I do not know how to have the code only add the files that don't have the PNG.Here is my current code:[code].....
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Feb 14, 2012
The idea is to comment and uncomment lines in the httpd.conf file to load and unload modules. This is what I have so far, working, but not always, somehow. But in any case, I don't think this is the proper way of doing this. Any suggestions? [Code]
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Oct 30, 2008
Here's what I'm attempting: The user browses for and opens a dbf file. The user is presented with a checkedlistbox which shows the column headers. The user then selects the columns they wish to run a report on. ex. total # of cells not empty, longest cell length, etc.
I'm to the point of populating the checkedlistbox with all of the columns shown but I'm unsure if the users selections are actually linked to my data and if they are how I go about isolating said selections for the reports. I have a feeling that my approach to populating the checkedlistbox is not the proper way for what I'm trying to accomplish.
Here is the code
Public Sub btnGetFile_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnGetFile.Click
Dim fileLookUp As New OpenFileDialog
[CODE]......................
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Mar 24, 2010
I am having difficulties populating a checkedlistbox (CLB) based on the selection(s) made in another. It should also be noted that I have a "Select All" checkbox at the top that checks/unchecks all of the items in the first CLB. Here's the code:
[Code]...
The first CLB is populated with an arraylist of values on the button click event. Based on whatever is checked in the first CLB, corresponding values from an arraylist of structures should fill the second CLB.The following code partially works until the "Select All" checkbox is clicked at which point if other values have been selected before "Select All" is checked, the second CLB is filled with the correct number of corresponding values BUT only those of the most recently selected item of the first CLB instead of all of corresponding values of all of the items that were not already selected.
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Jan 18, 2012
I want ListView instead of CheckedListBox files in checkedListBox is being updated via ListBox1 How can I add the size of file too in listview
[Code]....
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Jan 9, 2012
a program and i need to have a button put a file into a folder, i know how the button works i already have it doing some other stuff. i just don't know the code to copy and past it to a folder.
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Feb 22, 2012
Trying to get a database into my Checkedlistbox. This is the code I have so far: Private Sub CheckDevices_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim connectionString As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=N:DeviceList.accdb"
Dim str_DeviceList_Select As String = "SELECT * FROM DeviceList"
Dim myConnection As OleDbConnection
Dim myCommand As OleDbCommand
Dim myAdapter As OleDbDataAdapter
Dim myDataSet As DataSet
[Code]...
So I have the dataset with database in it, but I am struggling to get it from the dataset into the Checkedlistbox. Could someone do some quick code for this?Secondaly, I also want to set the checkbox's by using a string of integers which will look like "0110100110". If the value is a 1, I will want the corresponding checkbox to be checked, eg, "0110100110" So I would take that one, and check the 8th checkbox down in the checkedlistbox... So if anyone if feeling really generous, could use a little help with this as well.
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Jan 15, 2012
I have a CheckedListBox that will be used to choose what columns they want to select from a database. Is it at all possible to display it in the format of [Table Name].[Column Name]?So far I have this:
con.Open()
theQuery.Connection = con
theQuery.CommandText = strColumns
theAdapter.SelectCommand = theQuery
[code]....
I tried adding another clbFields.DisplayMember, but this obviously just overwrites the table name with the column name. I also tried doing:
clbFields.DisplayMember = "Table_Name" & "." & "Column_Name"
but that didn't work either.I know it's not exactly life threatening if the user can only see the column name, but it'd be nice to be able to see the table name in case of any duplications?
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Sep 22, 2009
for each item as checkbox in lstCheckbox.items
if item.name.startswith("blah") then
item.checked = true
[code].....
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Dec 15, 2010
I have a few checkedlistboxes in my GUI and the items in them are changed as needed. For example if I check an item in checkedlistbox1, it would trigger the items fromcheckedlistbox2 to be removed and new items will be added to it that are relevant.Similarly, depending on when the items are checked inside the checkedlistbox2, it will trigger new items to be added to checkedlistbox3. So I have added the functionsSelectedIndexChange to handle when items are checked inside the boxes.
I am running into a problem however. For example, I have some items in the checkedlistbox2 and one of them is already checked. When I click on something else in checkedlistbox1 it clears out all the items and repopulates the checkedlistbox2. In that case, however, since something was previously checked in checkedlistbox2, the selectedindexchange event is also triggered for that one as well because something was changed in that. Can I disable this somehow because technically I didn't "check" or "uncheck" anything, all I did was remove a checked item? I tried doing something like adding an if statement inside the
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Feb 26, 2012
Ive got a CheckedListBox where I have a list of devices and a checkbox to tell me whether they are on or off. I want to be able to change the checkbox in the program of a specific device and then when I click submit, it to generate a string of numbers to tell me what boxes are checked (1 for on, 0 for off)Example: Boxes 1,3 and 7 are checked in the checkedlistbox, and there are 8 total, so the string outputed would be "10100010".
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Aug 5, 2009
I just can't seem to get this right, what I'm trying to do is use FindWindow to find the windows of more than one window. Here is the code:
app_hwnd = FindWindow(vbNullString, CheckedListBox.CheckedItems)The thing is, if I use .SelectedItem, it only finds one window and if i use CheckedItems/SelectedItems it gives me an error: "Value of type 'System.Windows.Forms.ListBox.SelectedObjectCollection' cannot be converted to 'String'."
So right now, I'm confined to using FindWindow for only one window--when I want to do it for more than one window.
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Feb 18, 2009
Code in checkelistbox which was already filled in upon loading of the form[code]...
so now, i want to get all the items from myCheckedListBox.
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Feb 6, 2008
I'm new bie to VB.NET.I want some help on the following requrement.
Table: trade_data(tradesourceid,description)
Data:
trade_data(1,'Indian Bull')
trade_data(2,'Golden way')
trade_data(3,'Indian Trades')
[Code]...
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May 18, 2010
I have an Edit Bank form with a checkedlistbox. When the user clicks a bank it loads the edit from and checks the states that that bank lends in according to my database.i am trying to write and update statement so if the the new states are checked or unchecked, I want the database to update when i click save.I use an arraylist to store the items then read through and see which ones are checked.[code]
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Feb 4, 2010
Is there a Tag for an Item in the CheckedListBox? Or something similar? I would like to be able to store and ID associated with the item that I'm displaying.
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Feb 18, 2012
I am trying to implement this bit of code in a BGW have it in a Sub now but need it in BGW
Sub Code If Not String.IsNullOrEmpty(CStr(Dialog1.ComboBox3.SelectedItem)) Then
Dim tName As String = Dialog1.ComboBox3.SelectedItem.ToString
For Each item As String In Dialog1.CheckedListBox1.CheckedItems()
For i = table.Rows.Count - 1 To 0 Step -1
If (table.Rows(i)(tName)).Equals(item) Then
table.Rows.RemoveAt(i)
[Code]...
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Dec 17, 2008
What i am trying to do now is to show the content of the dnsredir.ini file on the forms and able to edit it.
The dnsredir.ini file file looks like this
;Configuration INI file for DNS Redirector v6.4.7
Logging=Normal
ListenOnIP=172.23.128.33
[Code]......
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Apr 18, 2012
I've written the following class to create CheckedListboxes that use a Natural Sort algorithm. The overridden Sort() method, however, is not getting fired.(The code within that method is from the MSDN example on how to implement your own sort algorithm on a regular Listbox.)
[Code]...
A CheckedListbox derives from a Listbox, so I figured the Sort() override would work, but I'm stuck as to why it doesn't.I am setting the instance's .Sorted = True, but it's just sorting items using the default algorithm, and not the Natural Sort algorithm (which has been tested and shown to work as expected elsewhere).
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Jan 21, 2011
How can I add checkeditems or one by one items on click from CheckedListBox to TextBox one by one with( ;) between them such as emails in field of mailto ?
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Nov 30, 2011
1.) I have a CheckedListBox, ListBox, Button, and ComboBox on a form. There is two ways users add items to the CheckedListBox listed below.
A.) The user will select one item in the ListBox and click the Button and that selected item is added to the CheckedListBox (see code below).
Private Sub Button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button.Click
' ensure searched analytes checked listbox always contains (Select All) at the top if analytes exist in the list
If Me.CheckedListBox.Items.Count = 0 Then Me.CheckedListBox.Items.Add("(Select All)", True)
[code]....
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Mar 29, 2011
how to add newitem in checkedlistbox aftercompiling
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Jun 9, 2009
I'm trying to implement a combobox that will drop down and give a list of things that the user can select via checkbox so that they can have all, none, or some of the items selected/implemented in the program. Through some research, I've come up empty handed. I found a few tutorials that dealt with tons of class files, which I'm not really familiar with, didn't understand much, and then didn't work. Who would've thunk it right?Anyway, i tried just adding the checkedListBox as a control to the comboBox and it would disappear from the form as if it had been added, but wouldn't show up from the comboBox drop down menu..can anyone tell me how I can go about doing that?
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Oct 20, 2011
I have a data table (cv_dtPools) that contains six columns.I only want to load two columns from cv_dtPools into CheckedListBox.I want vchQCID to be the DisplayMember and "intQCPool_PK' to be the ValueMember. When the user is done selected the items in the CheckedListBox they will then click a button.The code behind the button will then collect the ValueMembers (intQCPool_PK) and put them in another data table which will be used by another procedure.How can I get only the two columns of the data table into the CheckedListBox? [code]
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Mar 21, 2010
I want to insert into a checkedlistobox all the coloumn from a datatable
what is the easiest way to do that, possibly without use loops?
i tried to use CheckedListBox1.DataBindings.Add(...) and CheckedListBox1.Items.Add(...) but without success..
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Apr 15, 2010
I have CheckedListBox, now i want to put image from the ImageList next to the every checkbox.I try to do that with this:
CheckedListBox1.Items.Add(ImageList1.Images(0))
But with this I get only checkbox with text System.Drawing.Bitmap!What I am doing wrong, I and how i can put image next to the checkbox?
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Mar 4, 2012
Ive got a CheckedListBox with 20 rows in it, each with checkbox's which are checked or not-checked. What I want to do is to check each checkbox, row by row to see if it is checked, and then to store this is a listofintegers (1 if its checked, and 0 if its not).So the output listofintegers should be something like "01011000010100010011".
Dim sw As New StreamWriter("N:
umberstring.txt")
Dim sWrite As String = Nothing
[code].....
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Sep 6, 2010
Okay I am now using a CheckedListBox and I was wondering if there is a way to save the checkstate of the items? Its very easy with checkboxes but I have not found out how to do it with this.
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