ListBox

Great Reads

by Nilay M Joshi

Multiselect Combobox - Custom control for WPF

by Magnus_

public static void RemoveSelected(this ListControl source){ foreach (var item in source.Items.Cast().Where(li => li.Selected).ToList()) source.Items.Remove(item);}protected void btnRemove_Click(object sender, EventArgs e){ lstCity.RemoveSelected();}

Checkbox List With Filtering jQuery Widget

by Evren Yortuçboylu

A checkbox list jQuery UI widget with real time filtering functionality explained

Difference between ListBox and CheckedListBox DataBinding

by Paul_Williams

The difference between ListBox and CheckedListBox DataBinding.

Latest Articles

Editor for Folder Metadata in C#

by Martin Henke (1971)

Edit Metadata for folders by using desktop.ini features

Multiselect Combobox in WPF

by Nilay M Joshi

Multiselect Combobox - Custom control for WPF

A WPF ListView Custom Control with Search Filter Tutorial

by Michael Shpilt

A WPF tutorial on how to create FilteredListView: A ListView custom control with search filter that uses Throttling.

Using Knockout.js to Control Cascading Selects

by davekahn

An easy way to control the lists of options in multiple related SELECT controls

All Articles

top

ListBox

Editor for Folder Metadata in C#

23 Feb 2024 by Martin Henke (1971)

Edit Metadata for folders by using desktop.ini features

.NET

Windows

Dev

folder

ListBox

Windows forms - adding local users to localhost/security/logins in Microsoft SQL server management studio

13 Dec 2023 by Inczu

Hello guys and ladies I want to create a code that will add all my local users from Items from listbox public void ExistUserList_SelectedIndexChanged(object sender, EventArgs e) while added local users are in private void LoadLocalUsers() to...

SQL

forms

ListBox

Windows forms - local, domain and "local and domain" user on listbox

1 Dec 2023 by Inczu

Hello, I want to create a research for my listbox. I have created listbox called: public void ExistUserList_SelectedIndexChanged(object sender, EventArgs e) and a code that will write in a textbox private void AllText2_TextChanged(object...

forms

TextBoxBase

ListBox

Can I select a listbox item in my program if the listbox is not visible

20 Nov 2023 by Graeme_Grant

If you use data binding with the ListBox to a List, you don't need to access the ListBox to access the collection. The ListBox becomes a 'view' to the data. This means that you can access the collection of data directly. You can read more on how...

forms

ListBox

Can I select a listbox item in my program if the listbox is not visible

20 Nov 2023 by Ralf Meier

you haven't answered my question - but independant here is an answer for you : Dim l As Integer = ListBox1.Items.Count Dim myEntry as string = ListBox1.Items(l-1) this gives you the last Entry from your Listbox. to get any else you...

forms

ListBox

Can I select a listbox item in my program if the listbox is not visible

20 Nov 2023 by Member 12602897

I have a listbox on my form and I add entries to it throughout the program. Normally the listbox Visible property is set to FALSE. When it is FALSE the SELECTITEDITEM only returns the first entry. When I change it to TRUE I am able in my program...

forms

ListBox

Visual studio 2017 windows forms C# - password from lusrmgr.mfc

4 Nov 2023 by Inczu

I want to create a code without admin license when I select a username from a Items listbox: private void ExistUserList_SelectedIndexChanged(object sender, EventArgs e) Then the code must search the same username in lusrmgr.msc and put the...

Visual studio 2017 windows forms C# - password from windows user password

4 Nov 2023 by Inczu

I want to create a code using netuser function that will search by clicking on the button: private void NextForm3_Click(object sender, EventArgs e) if the user by selecting an Item from listbox. private void...

Visual studio 2017 windows forms C# - password from windows user password

3 Nov 2023 by Dave Kreskowiak

Like Richard already said, I told you how to validate credentials against the machines local account database that does not use shelling out to "NET USE". It is not called "in Windows services". That phrase means something completely different...

Visual studio 2017 windows forms C# - password from lusrmgr.mfc

30 Oct 2023 by Dave Kreskowiak

An "admin license," whatever that is, has nothing to do with this. You're completely misunderstanding the Windows security system and directory. You cannot check an entered password against what you perceive to be a plain text password in the...

Visual studio 2017 windows forms C# - password from lusrmgr.mfc

30 Oct 2023 by Richard Deeming

You can't. Windows does not store user passwords using a reversible encryption. Passwords technical overview | Microsoft Learn[^]: For use in Windows networking, including Active Directory domains, the password is stored two different ways by...

How to add hyperlink to listbox item

12 Sep 2023 by vblover Programmer

Public Class Form1 Dim Link_ As New LinkLabel Dim Proc As Process Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click If Me.TextBox1.TextLength = 0 Then Exit Sub If...

ListBox

Save listbox items in order in C#

17 May 2023 by Member 12926744

Hi All , I have listbox to select multiple items . I need to save the listbox value in selected order rather than its unique id order . Anyone please help . What I have tried:

ASP.NET

ListBox

Save listbox items in order in C#

17 May 2023 by Richard Deeming

A ListBox is rendered as a element[^]. That element submits the selected items in the order they were declared in the source, not the order in which the user selects them. If you need to know the order in which the user selected the...

ASP.NET

ListBox

How do I fix problem in WPF while transfering data between two listboxes

3 Apr 2023 by Member 15758581

I am Working on a Backuptool but now i ran into a problem, all my Items in my ListBox where they were read from an OpenFolderDialog all have checkboxes. Now here is my Problem, I want to get the checked Items into another ListBox called...

How do I fix problem in WPF while transfering data between two listboxes

3 Apr 2023 by Graeme_Grant

You are using MVVM. You can use DataBinding to track selection. 1. Wrap the Model: public class CheckItemModel : ObservableObject { private bool isChecked; public bool IsChecked { get => isChecked; set => Set(ref...

How to shown specified data of selected item from listbox list in the textboxes

4 Dec 2022 by ernteSKY

I load all of data from the database into a List then display all in a ListBox. games_listBox.DataSource = _games; All games have a data: year of publication, year of manufacture, name, manufacturer, category. The question: How to display...

How to shown specified data of selected item from listbox list in the textboxes

4 Dec 2022 by Richard MacCutchan

Take a look at A Detailed Data Binding Tutorial[^] which shows a number of ways to do it.

How to check in listbox how many items are selected?

21 Nov 2022 by ernteSKY

I have a ListBox display all data from the database. Can do a multiple selections as well but only one selected item possible to edit in a same time. I tried the following code but working only with the else branch but I want put my full code...

Visual-Studio

ListBox

How to check in listbox how many items are selected?

21 Nov 2022 by RickZeeland

Your code is almost right, just change the first line: if (listBox.SelectedItems.Count == 1)

Visual-Studio

ListBox

How do I resolve error 'cannot implicitly convert type 'string' to string[]

1 Nov 2022 by Tshumore

I have a form whereby i need to do select multiple employees on a HtmlDropDownFor. I have used an SelectListItem and in my controller i am getting an exception 'Cannot implicitly convert type 'string' to string[] ' on the property pertaining to the employee i.e on line request.EmployeeNumber...

ListBox

selection

How do I resolve error 'cannot implicitly convert type 'string' to string[]

1 Nov 2022 by Rocky New

EmployeeNumber = new string[] { Convert.ToString(formcollection["EmployeeNumber"]) }; this solution only work in single index , can you please tell this statment with loop

ListBox

selection

How to search items on listbox with a text filter in C#?

22 Oct 2022 by ernteSKY

The following code working well with basics but I would like to update with speacial request. My_listBox.SelectedItems.Clear(); for (int i = My_listBox.Items.Count - 1; i >= 0; i--) { ...

Visual-Studio

ListBox

Create a listbox that shows available serial ports synchronously

7 Jul 2022 by AmirSina Mashayekh

Hello. I'm creating a windows program (Visual Studio - C#) to communicate with AVR MCU using serial port. I want to show available serial ports in a ListBox (or combobox) and update the list immediately when a new device is available or a device is disconnected. Currently I use a "Refresh"...

Create a listbox that shows available serial ports synchronously

7 Jul 2022 by joseph wind

public List getCommPorts() { List devices = new List(); string[] ports = SerialPort.GetPortNames(); foreach (string portName in ports) { SerialPort...

C# load saved JSON files to listbox (all JSON files saved in a folder)

6 Jun 2022 by Ivan Patrick Mandi

I have saved a list of JSON files stored in a local folder. What I've been trying to do is to view all those JSON files to a listbox then auto populate the JSON file selected in a series of textfields for each attribute. Here are the contents of...

Select and focus a listbox-item

20 May 2022 by susad

I have a WPF ListBox with the ItemsSource bound to a ViewModels list of MyObjects (products). This works fine, the lisbox will be filled with products from Database. Unfortunatly there are over 4.000 entries in the DB. When the user navigates to the listbox, a specific product entry should be...

.NET

WPF

ListBox

Listbox in C# split items / 5

3 Apr 2022 by Ashkan X

Does anyone know how to split items in listbox / 5? Automatically, this items / 5 and split to 5 other listboxes. For example, we have 1000 items in Listbox 1. I want to split these 1000 items to the 5 different listboxes. What code should I...

ListBox

Listbox in C# split items / 5

3 Apr 2022 by Maciej Los

Think of it. Imagine, you need only one loop. Based on your example - listbox1 has got 1000 items. Then you want to split it into 5 listboxes. int j = 0; for(int i=0; i

ListBox

How do I resolve error 'cannot convert char to int'

2 Apr 2022 by Tshumore

I have a ListBoxFor where i need to retrieve all the selected values. The selected values are in a string array of the form : string commaDelimited = "mihr20, emp1004, fbc567,mihr01";. Now when i attempt to separate the individual items between the commas i get type-casting exception 'Cannot...

Typecasting

ListBox

How do I resolve error 'cannot convert char to int'

2 Apr 2022 by Member 15588374

Seem to be some other reason for this error because I got the same error with the following code: foreach (string filePath in DirectoryBrowser.SelectedPath) { //.....do something with the path } filePath is declared as a string...

Typecasting

ListBox

Sort month and year in listbox C#

1 Feb 2022 by Richard-Dev

My problem is I need to sort the items in ListBox. These are my sample items in ListBox. 2021 - January 2021 - February 2022 - January 2022 - February 2021 - April This is my desired output. I want to sort using Year and then Month. 2021 -...

ListBox

Sort month and year in listbox C#

1 Feb 2022 by George Swan

It is not as difficult as it seems if you are familiar with LINQ. //read the lines into an array var lines = File.ReadAllLines(@"C:\temp\TestDates.txt"); List dates = new List(); ...

ListBox

Sort month and year in listbox C#

1 Feb 2022 by M Imran Ansari

In this scenario, You need perform some string operations with custom implementation. You can get you listbox items into a collection and perform split operation to seperate year and month values. You can get the listbox items like string[]...

ListBox

Sort month and year in listbox

31 Jan 2022 by OriginalGriff

Repost: Deleted. Please do not repost your question; use the Improve question widget to add information or reformat it, but posting it repeatedly just duplicates work, wastes time, and annoys people. I'll delete this one.

ListBox

Sort month and year in listbox

31 Jan 2022 by Richard MacCutchan

You already have the answer in your original question at Sort month and year in listbox C#[^]. Please do not repost.

ListBox

Sort month and year in listbox C#

31 Jan 2022 by OriginalGriff

The problem is that you can't do it like that: you are providing string based data, so the comparison is always going to be string based - and that means that the result of the entire comparison is based on the first different character in the...

ListBox

How to import and use tktreectrl module

22 Dec 2021 by asaad kittaneh

0 I'm building my first Tkinter GUI, and I need to create a multi-column Listbox using TKtreectrl, but when importing the module I get this error, import error: No module named "TkTreectrl". How to solve this problem, thanks in advance. What I...

How to import and use tktreectrl module

22 Dec 2021 by Richard MacCutchan

You first need to install the library from its online repository. See TkTreeCtrl[^] for details.

C# how can I take the user input multiple times on this button click and save it in the listbox?

11 Oct 2021 by candijen

The user enters a link in textBox1 and hits the button and the code below prints it in a listbox but only once. If the user enters another URL or the same URL it does not get saved into the listbox how can I take the user input multiple times...

WebForms

ListBox

C# how can I take the user input multiple times on this button click and save it in the listbox?

11 Oct 2021 by Richard Deeming

Quote: ...WebForms... List hll = new List(); It looks like you're storing your list as a field within your page. That won't work in WebForms - every time the user causes a post-back, a new instance of your page class...

WebForms

ListBox

C# how can I take the user input multiple times on this button click and save it in the listbox?

11 Oct 2021 by BillWoodruff

You just discovered the no-datasource-refresh when new Item added to DataSource behavior that most of us (ouch) discover. The best way to fix this is just to use a 'BindingList [^] // create and initialize at class level scope: private...

WebForms

ListBox

Multiselect Combobox in WPF

26 May 2021 by Nilay M Joshi

Multiselect Combobox - Custom control for WPF

Pasting clipboard data into a listbox/gridview

29 Mar 2021 by Member 15076984

Hello. I'm trying to get a list of integers from Excel to my VB application by pulling them from the clipboard. The error is Conversion from string "908313 264357 914466 280352 " to type 'Integer' is not valid so it still a string and not a...

.NET

ListBox

Pasting clipboard data into a listbox/gridview

29 Mar 2021 by Jo_vb.net

I would paste the clipboard data to a multiline textbox. Then you see how the data really look. Then remove all blank characters and html formatting code from the string(s) 264357 Format/parse/split the string(s) and convert it to...

.NET

ListBox

Pasting clipboard data into a listbox/gridview

29 Mar 2021 by Maciej Los

Try this: Dim clipNumbers = clipboarddata.Split(New String(){Microsoft.VisualBasic.vbNewLine}, StringSplitOptions.RemoveEmptyEntries) _ .Select(Function(x) New SortedNumbers With {.RandomNumber =Math.Abs(Convert.ToInt32(x))}) _...

.NET

ListBox

How to store data more efficiently so I can sort by surname.

22 Nov 2020 by George Swan

My choice would be to use a value Tuple. Like this: public List namesList = new List(); //add an item namesList.Add((txtSurname.Text, txtFname.Text));...

.NET

dictionary

ListBox

How to store data more efficiently so I can sort by surname.

22 Nov 2020 by Morke97

Hi guys, I'm creating a simple application that that takes firstName and surName input from text boxes, adds them to a List (currently using List) and a ListBox by clicking on a "Add" button. And I also have a button that has to sort the names...

.NET

dictionary

ListBox

How to store data more efficiently so I can sort by surname.

22 Nov 2020 by PIEBALDconsult

Define a class, with the two values, a ToString for displaying them together, and a compare method which sorts by last then first.

.NET

dictionary

ListBox

How do I get listbox items when added by end user

22 Oct 2020 by izz moe

I am using drag and drop functionality by devexpress to fill a listbox by dragging items from a data grid the problem is not related to devexpress or dragging and dropping, it works just fine but the listbox.Items.Count is always 0 even if the...

ListBox

listbox item forecolor change

8 Sep 2020 by Member 10190163

Does anyone know why the Listbox1.Refresh() command may not trigger the ListBox1_DrawItem sub every time?In Microsoft Visual Basic 2010, a listbox has a forcolor and backcolor property. These properties change the forcolour and backcolor for all the items in the listbox. By default there is...

ListBox

Combobox and listbox folder and files

8 Aug 2020 by Sandeep Mewara

Code in combobox selected change would be roughly: String[] files = System.IO.Directory.GetFiles("combobox selected path of folder"); for (i = 0; i

ListBox

combination

drop-down

Separate files by filename to listbox

7 Aug 2020 by TheRealSteveJudge

If your filenames are like this e.g. 11111111111_a.txt or 11111111111_b.txt LINQ will help you. listBox1.DataSource = shortFilenames.Where(x => Path.GetFileNameWithoutExtension(x).EndsWith("a")).ToList(); listBox2.DataSource =...

file

FileIO

ListBox

Separate files by filename to listbox

7 Aug 2020 by Member 11396175

Hello friends !!!!! I have one folder with many txt files with filename 11111111111_a,11111111111_b,22222222_a,22222222_b How can separate to 2 listboxes by last digit? What I have tried: private void Form1_Load(object sender, EventArgs e) {...

file

FileIO

ListBox

Separate files by filename to listbox

7 Aug 2020 by Richard Deeming

Something like this should work: var fileNames = directoryInfo.EnumerateFiles() .Select(f => f.Name) .ToLookup(f => Path.GetFileNameWithoutExtension(f).LastOrDefault()); listBox1.DataSource = fileNames['a']; listBox2.DataSource =...

file

FileIO

ListBox

Combobox and listbox folder and files

4 Aug 2020 by TheRealSteveJudge

First of all you must cast "sender" which is just an object to "ComboBox". Then you must get "SelectedValue". Finally you must get the files that are in the selected directory and use it as data source for the ListBox. private void...

ListBox

combination

drop-down

Combobox and listbox folder and files

4 Aug 2020 by Member 11396175

Good morning I think my question is very simple for your experience one combobox with specific path give me the folders that have in it I want when i select one folder from combobox the files in the folder placed in the list box. What I have...

ListBox

combination

drop-down

Combobox and listbox folder and files

4 Aug 2020 by Richard MacCutchan

See Path.GetFileName Method (System.IO) | Microsoft Docs[^].

ListBox

combination

drop-down

How to save list box items to settings

28 Jun 2020 by Rodrigolo

i got my listbox (listBox1) i want to save the items inside and load them when form1 is loaded i've got no idea so please explain everything you can Thanks What I have tried: i treid looking for this in the internet , i found nothing some...

ListBox

How to save list box items to settings

28 Jun 2020 by Maciej Los

Every .net application has got a configuration file: app.config already. If you don't see it, you can add it! See: How to add an app.config file to a project - Visual Studio | Microsoft Docs[^] Please, read this article on CP KnowledgeBase:...

ListBox

How to save list box items to settings

28 Jun 2020 by OriginalGriff

Top be honest, they "use a file" faction is probably right - settings files aren't really there for data and they aren't really good at it. Using a file isn't difficult, and particularly with something like a list box it is the logical way to do...

ListBox

How to send form 1 listbox items to form 2 listbox items

28 Jun 2020 by Rodrigolo

I want to : When i click a button (xuiButton2) it opens a new form 2 it worked and in form 2 there is a listbox the items in that listbox are the same than the items in the other listbox What I have tried: I tried making that when...

forms

ListBox

How to send form 1 listbox items to form 2 listbox items

28 Jun 2020 by OriginalGriff

Exactly how depends on the "relationship" between the two forms. Have a look at these, one of them will fit your circumstances. The form that creates an instance of another: MyForm mf = new MyForm(); mf.Show(); Is the "parent", the other form is...

forms

ListBox

My string.format doesn't align as I want, can you spot the error?

24 May 2020 by Maciej Los

To display data in a tabular form, use DataGridView[^] control. You'll need to make some changes in your code: 1. Add new class: public class Föremål { public string Kurs { get; set; } public string Lärare { get; set; } public...

ListBox

string

My string.format doesn't align as I want, can you spot the error?

24 May 2020 by Severus Josefsen

I'm trying to align strings using string.format but it doesn't work as I want. What it looks like: Programmering P Matematik U Engelska V This is the code: public partial class Form1 : Form { List kurs = new...

ListBox

string

My string.format doesn't align as I want, can you spot the error?

24 May 2020 by OriginalGriff

It's because the font that the ListBox is using to display the strings is a proportional font: not all the characters are the same width. For example, "i" is much narrower than "W", and "." is really narrow while "#" is a lot wider. Change the...

ListBox

string

C# form1 and form2 - listboxes, dialog

12 Mar 2020 by Member 14771221

Hello, I'm working on a project. And I have a listbox in Form1 and a listbox in Form2. What I have already done is that I have a button that adds values from numericUpDown to listbox in Form1 (values from 1 to 999999). What I need help with is...

ListBox

dialog

C# form1 and form2 - listboxes, dialog

12 Mar 2020 by Maciej Los

In addition to @phil.o solution, i'd suggest to read these very interesting tips/articles: Transferring information between two forms, Part 1: Parent to Child[^] Transferring information between two forms, Part 2: Child to Parent[^] Transferring...

ListBox

dialog

C# form1 and form2 - listboxes, dialog

12 Mar 2020 by phil.o

You could give Form2 a constructor accepting an enumeration of integers as parameter, which you would use to populate the second listbox: public Form2() { InitializeComponent(); } public Form2(IEnumerable values) : this() { ...

ListBox

dialog

How do I solve these Display issues with WPF on Secondary screens?

9 Mar 2020 by Member 7713421

anyone find a solution to this? Experiencing the same thing with clickshare and not showing a WPF application. All other apps are showing fine.

How do I solve these Display issues with WPF on Secondary screens?

9 Mar 2020 by JamesHadleyChase

Hello All,I use an Intel powered Dell laptop to run my application built using WPF 4.0 on Windows 7 64 bit OS.Problem:When I connect a secondary monitor to the laptop or plug the laptop to a projector, the WPF application behaves very strangely. Few of the controls like the Listbox,...

How to add hyperlink to listbox item

16 Jan 2020 by TheGoffy

Hello,How can I add a hyperlink as listbox item?Example:ListBox1.Items.Add(item, "http://www.google.com/")

ListBox

How do I resolve error 'cannot convert char to int'

26 Dec 2019 by Richard MacCutchan

This looks like the same issue as in your previous question at How do I resolve error 'cannot implicitly convert type 'string' to string[][^]. You need to understand the difference between a string, which is a single string of characters, and a string[], which is an array of string objects. As...

Typecasting

ListBox

How do I resolve error 'cannot implicitly convert type 'string' to string[]

24 Dec 2019 by MadMyche

The reason that you are getting this error is that EmployeeNumber is declared as an array of strings (string[]) and you are attempting to populate it from a single string directly. I believe that you want this just to be a string, and not an array of them.OverTimeRequest.cs[Required]...

ListBox

selection

Force dynamic WPF listbox to always display the last row

18 Dec 2019 by TheRealSteveJudge

A so-called behavior will help you. It is assumed that your application is called "MyApp". Then you could implement the wished behavior in a subfolder called Behaviors. using System.Windows.Controls; using System.Windows.Interactivity; namespace MyApp.Behaviors { public class...

WPF

ListBox

Force dynamic WPF listbox to always display the last row

18 Dec 2019 by Mark Millman

I have a ListBox which displays an ObservableCollection that grows in response to arbitrary events. I would like the oldest entry to be at the top and as I add new entries I would like the ListBox to scroll down so that the last row is always displayed. The default behavior is for the...

WPF

ListBox

Force dynamic WPF listbox to always display the last row

18 Dec 2019 by Gerry Schmitz

Scroll to the "last object" that was added. How you determine "last" is up to you. https://docs.microsoft.com/en-us/dotnet/api/system.windows.controls.listbox.scrollintoview?view=netframework-4.8

WPF

ListBox

C# selected item from listbox to datagridview

19 Oct 2019 by Richard MacCutchan

I have looked into this and it appears that because of data binding, the values returned in the SelectedItems list are DataRowView objects. Each of which contains the DataRow of the data source as a member. So the following code will list your items. foreach (DataRowView rowview in...

SQL

ListBox

DataGridView

C# selected item from listbox to datagridview

18 Oct 2019 by Member 14608841

i have ItemID, ItemName, Quantity, Date and ItemStatus from inventory table in sql database. i only want the ItemID and itemName the quantity will be reduced if i want 5 qty from selected item if item has 21 it should be reduce to 16 Capture5 — imgbb.com[^] when i add selected item from...

SQL

ListBox

DataGridView

Create a listbox that shows available serial ports synchronously

2 Oct 2019 by Maciej Los

Wel... Start here: Ready-to-use serial port enumeration list box[^] For further details, please see: SerialPort.GetPortNames Method (System.IO.Ports) | Microsoft Docs[^] [EDIT] There's no guarantee that SerialPort.GetPortNames method will return the names of ports. But, there's work-around....

Why is Setting InactiveSelectionHighlightBrushKey not Working ?

5 Jul 2019 by Ahmad_kelany

hi everyone,i searched for changing ListBoxItem back color and persisting this selection color even if the control lost focusi found the solution like this :

WPF

ListBox

Why is Setting InactiveSelectionHighlightBrushKey not Working ?

5 Jul 2019 by Frank,Lin

MyListBox.Resources[SystemColo...

WPF

ListBox

How can I implement a button to search results in listbox

30 Mar 2019 by Member 14017552

C#, Windows Forms - I did almost 90% of the problem but Search Button is not working! Given Access file with the data (below). I need to build a program (GUI application) that uses LINQ to get data from the database file called (students.accdb). I need radio buttons to select and search by last...

ListBox

How can I implement a button to search results in listbox

30 Mar 2019 by OriginalGriff

Instead of searching, use filtering of your original data. It's easy enough to do: private BindingSource displaySource = new BindingSource(); private void frmMain_Shown(object sender, EventArgs e) { DataTable dt = new DataTable(); using...

ListBox

How so suppress the indexchanged event when filling a listbox?

14 Feb 2019 by Sonhospa

Hello, In my code I'm using the SelectedIndexChanged event of listboxes. I had to find out that this event seems to be automatically raised while the listbox gets filled with it's elements. First of all, after the listbox has been filled I want to have no item selected. I'm currently doing...

event

ListBox

How so suppress the indexchanged event when filling a listbox?

14 Feb 2019 by OriginalGriff

You could remove the event from the handlers list and add it back at the end: Add and remove event handlers dynamically in VB.NET[^] That effectively "disables" it while it's being filled.

event

ListBox

How to add item to listbox and then send email to target recipient

31 Jan 2019 by ZurdoDev

As Richard mentioned in the comments, it should be pretty obvious, right? All of your code is inside of an if statement that will only run when i is less than 0. However, I is set to the count of the listbox items. How can I ever be less than 0? Simple debugging would have found this much...

ListBox

How to add item to listbox and then send email to target recipient

31 Jan 2019 by Member 13998948

Good day guys, I'm a semi-intermediate here in c#. Actually, the said topic name it won't work with my codes implemented, i need some help on how to improve my timer tick procedure code as shown what I've tried below. What I have tried: here is my code as follows. private void...

ListBox

How to get list of checked values from a listbox in C#?

18 Dec 2018 by Member 13751744

I have a dynamic listBox: ...

WPF

ListBox

How to get list of checked values from a listbox in C#?

17 Dec 2018 by Vincent Maverick Durano

Not a WPF guy, but I found this discussion that may help you get started: Get selected items from checkbox in a list - C# WPF - Stack Overflow[^]

WPF

ListBox

How can I use list boxes in equations?

13 Dec 2018 by idkwhatimdoing

Hello I'm working on a code for an assignment and I can't figure out how to use my list boxes in equation like how to use the variables in the list boxes already. I need to add both variables together and present them on a label which I can not figure out how to do. To clarify I'm working in...

ListBox

How can I use list boxes in equations?

13 Dec 2018 by OriginalGriff

We can't really help you specifically based on that little - we can't see what you have in your list boxes! But at a guess, the list boxes contains strings, and you can't add them together directly. Instead, convert the strings to numbers first: Dim valueFromListBox1 As String = "666" ...

ListBox

How to search a directory of .txt files for specific string (word or phrase)

11 Dec 2018 by Afzaal Ahmad Zeeshan

Quote: I need to search one directory (c:\K_txt) of almost 3,000 .txt files Searching this on the fly is a really very bad idea, and would have to make your users wait each time they make a change in the query. A good approach would be to read your files once, and create tokens (words, in...

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How to search a directory of .txt files for specific string (word or phrase)

11 Dec 2018 by Member 13698711

hi, I am not good with coding - in vb.net, I need to search one directory (c:\K_txt) of almost 3,000 .txt files for either a word or exact phrase that the user enters, and then load up a listbox with the names of those txt files that contain the word or phrase. Then when the file in the listbox...

directory

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How to search a directory of .txt files for specific string (word or phrase)

11 Dec 2018 by RickZeeland

See answer here: How to search specific string into text file from VB.NET[^] And here: VB.Net 2005: Search specific word in text file within a directory-VBForums[^]

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How to search a directory of .txt files for specific string (word or phrase)

11 Dec 2018 by CHill60

You could adapt the technique used in this CodeProject article File Searcher in C#[^] or this one WinSearchFile: how to search files on your PC[^] Or the techniques discussed here .net - c# Fastest string search in all files - Stack Overflow[^]

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[C#]how do I scroll down on listbox.

9 Dec 2018 by TABiSH777

Hi, please try changing the scroll viewer in the control template of Listbox. please check this Link. In the question itself user has tried implementing that.

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[C#]how do I scroll down on listbox.

9 Dec 2018 by Member 14007122

1. I was made List box in form 2. but I wanna enlarge width of Scroll Bar. So, Customize a new Scroll Bar using VScroll bar in 'Tool Box' 3. but I don't know Combine VScroll Bar with List box and How do I scroll down List box I was made... 4. I think.. Using Event " .Scroll += new...

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A WPF ListView Custom Control with Search Filter Tutorial

30 Nov 2018 by Michael Shpilt

A WPF tutorial on how to create FilteredListView: A ListView custom control with search filter that uses Throttling.

How to add value in textbox when button clicked add selecteditem value selected from combobox

11 Nov 2018 by M.Kamran Asim

OK First Create a public ListItem property and Bind it to TextBox public ListItem SelectedItem { get=>selectedItem; set { selectedItem=value; RaisePropertyChange(); } } Second...