.net - Natural Sorting A CheckedListbox?

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.)


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).


.net - Populating One Checkedlistbox With Another (checkedlistbox)?

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:


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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Excel Sorting Is Only Sorting One Column Not Multiple?

Mar 12, 2012

I'm having my program sort an excel sheet by a few columns. However, it is only sorting by the first column not the rest that I specify.ere is my sort code below:

myRange.Sort(Key1:=myRange.Range("A:A"), Order1:=XlSortOrder.xlAscending, Key2:=myRange.Range("G:G"), Order2:=XlSortOrder.xlAscending, Header:=XlYesNoGuess.xlYes, Orientation:=XlSortOrientation.xlSortColumns)


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Wpf - Sorting Observable Collection Incorrectly Sorting?

Aug 20, 2011

I have a WPF ObservableCollection which is bound to a ListBox and I have a Sort() method which when called will convert the ObservableCollection to a List(Of T), and undertakes a sort based on a date/time column within the collection.

The data is sorted, even when new items are added to the ObservableCollection, however the date/time isn't being correctly sorted. The data is sorting based on the date however it is very much random when it comes to the time portion. The following is an example of the outcomes I am experiencing:


Is there anything that I am doing incorrectly in this method that would cause the time portion not be included in the sort? Is there a better way of doing a sort?

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.NET - Database To CheckedListbox?

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


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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2 Columns In One CheckedListBox?

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:

theQuery.Connection = con
theQuery.CommandText = strColumns
theAdapter.SelectCommand = theQuery


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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Check A Box In A Checkedlistbox By Name?

Sep 22, 2009

for each item as checkbox in lstCheckbox.items
if item.name.startswith("blah") then
item.checked = true


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CheckedListBox SelectedIndexChange?

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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CheckedListBox To Database?

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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FindWindow For CheckedListBox?

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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Get All Items In Checkedlistbox?

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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How To DataBind To CheckedListBox

Feb 6, 2008

I'm new bie to VB.NET.I want some help on the following requrement.

Table: trade_data(tradesourceid,description)
trade_data(1,'Indian Bull')
trade_data(2,'Golden way')
trade_data(3,'Indian Trades')


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Sql UPDATE Using A Checkedlistbox

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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Tag For An Item In CheckedListBox?

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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VS 2008 For Each CheckedListBox In BGW?

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


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Add CheckedItems From CheckedListBox To TextBox One After Another?

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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Add File Paths To A CheckedListBox?

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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Add Item To CheckedListBox At Index = 0?

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)


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Add Newitem In Checkedlistbox Aftercompiling?

Mar 29, 2011

how to add newitem in checkedlistbox aftercompiling

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Adding CheckedListBox To ComboBox?

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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Bind A DataTable To A CheckedListBox

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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Bind Checkedlistbox To Datatable?

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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C# - Images Next To The Checkbox In CheckedListBox?

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:


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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CheckedListBox :: Make Checkstate?

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:
Dim sWrite As String = Nothing


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CheckedListBox Checkstate Save?

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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Checkedlistbox Inverting It's State

Aug 25, 2011

Why does this not work?


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CheckedListBox With One Bolded Item?

Mar 28, 2011

I have an application that uses a treeview and a checkedlistbox to allow a user to navigate and enable/disable printers on their computer. Everything works great.One of the program requirements is that the user interface must visually indicate which printer is the users default. The obvious best way to do this is by changing the font of the item in the listbox that matches the users default printer. From my research, it seems that I will have to subclass the checklistbox and add the drawmode property to the new control. I've got no idea how to do this with a checkbox and make it actually work!

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CheckedListBox.CheckedItems.Count Bug?

Dec 1, 2010

I have a simple form (Form1) with one CheckedListBox (CheckedListBox1) on it and the following code:

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
With Me.CheckedListBox1


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Disable A Checkedlistbox But Still Allow Scrolling?

Jan 6, 2010

I want to display values in a checkedlistbox as readonly. If I disable the control, the user can't scroll to see all the items. What's the trick?

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Disabling An Item In The CheckedListBox?

Sep 11, 2010

Working the first time with a CheckedListBox.

Question: is it possible to disable an item of the box so you can't change the value of the checkbox.

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Drag And Drop To Checkedlistbox?

Jul 14, 2011

I have a checkedlistbox and I want to drag and drop only image extensions and not text files. so how do I get it done. I am able to drag and drop all file formats but I need only image files.

Here is my code:

Private Sub CheckedListBox1_DragDrop(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles CheckedListBox1.DragDrop
Dim Files As String() = CType(e.Data.GetData(DataFormats.FileDrop), String())


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Find Path And Put It In Checkedlistbox?

Mar 16, 2011

Im looking for a way that if the program detect that for exemple the path "C:" is "true" then it will add , for exemple , "Hard Drive" in the checkedlistbox.

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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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Let My Query Being Controlled By A Checkedlistbox?

May 20, 2012

I have a Query which looks like this (in Query builder VS11)[code]...

so if a user selects the option 'programmeren' in chkbRequirementsm (= the name of a checkedlistbox) in the query it should start looking for all the programmeren with value True.

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Loop Txtfiles In CheckedListBox?

Feb 26, 2009

what iam trying to do is loop thru a checkedlistbox i open a file and theres text files in the checkedlistbox all checked, want to search thru all text files adding all found items in lstListBox1.Items.Add(m.Value) i can do 1 file at a time , below is some code i been working with

Dim options As RegexOptions = RegexOptions.Multiline
Dim testStr As String = IO.File.ReadAllText(openFileDialog1.FileName)
Dim rx1 As New Regex(" My regex here")


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Only One Item Checked In CheckedListBox

May 10, 2010

Given a CheckedListBox instance, how can I accomplish that a maximum of one item can remained checked?

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Only One Item Checked In CheckedListBox?

Jan 7, 2010

Given a CheckedListBox instance, how can I accomplish that a maximum of one item can remained checked?

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Save Items In CheckedListbox?

Apr 3, 2010

I have a CheckedListbox on my form which the user chooses the item/s necessary and then proceeds to calculate a few things which end up being displayed in a datagridview.The items are settings on how the calculations should work, if they want to include the client's goals, or reduce their income, etc.My question is this; what is the best way to save the CheckedListbox checked items when they click a button 'Save as default'? And once they open the form, if the user has already input their default settings how do I get these to display once the form is

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Save The CheckedListBox To The Database?

Oct 14, 2009

I want to Know how I can save the CheckedListBox to the database

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Jan 8, 2009

I'm interested in select all items in checkedlistbox, have anyone code?

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