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c#listwinformslistbox
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Reputation: 9033

Binding Listbox to List<object> in WinForms

What's the simplest way to bind a Listbox to a List of objects in Windows Forms?

Upvotes: 65

Views: 195892

Answers (8)

Maddie
Maddie

Reputation: 69

ListBox1.DataSource = CreateDataSource();
ListBox1.DataTextField = "FieldProperty";
ListBox1.DataValueField = "ValueProperty";

Please refer to this article for detailed examples.

Upvotes: 4

Henk Holterman
Henk Holterman

Reputation: 273179

There are two main routes here:

1: listBox1.DataSource = yourList;

Do any manipulation (Add/Delete) to yourList and Rebind.
Set DisplayMember and ValueMember to control what is shown.

2: listBox1.Items.AddRange(yourList.ToArray());

(or use a for-loop to do Items.Add(...))

You can control Display by overloading ToString() of the list objects or by implementing the listBox1.Format event.

Upvotes: 2

Samir
Samir

Reputation: 454

For a UWP app:

XAML

<ListBox x:Name="List" DisplayMemberPath="Source" ItemsSource="{x:Bind Results}"/>

C#

public ObservableCollection<Type> Results

Upvotes: -1

paulofer85
paulofer85

Reputation: 585

I haven 't seen it here so i post it because for me is the best way in winforms:

    List<object> objList = new List<object>();

    listBox.DataSource = objList ;

    listBox.Refresh();
    listBox.Update();

Upvotes: 3

surfmuggle
surfmuggle

Reputation: 5942

Binding a System.Windows.Forms.Listbox Control to a list of objects (here of type dynamic)

List<dynamic> dynList = new List<dynamic>() { 
            new {Id = 1, Name = "Elevator", Company="Vertical Pop" },
            new {Id = 2, Name = "Stairs", Company="Fitness" }
};

listBox.DataSource = dynList; 
listBox.DisplayMember = "Name";
listBox.ValueMember = "Id";

Upvotes: 17

SLaks
SLaks

Reputation: 887225

You're looking for the DataSource property:

List<SomeType> someList = ...;
myListBox.DataSource = someList;

You should also set the DisplayMember property to the name of a property in the object that you want the listbox to display. If you don't, it will call ToString().

Upvotes: 76

Ray
Ray

Reputation: 21905

Pretending you are displaying a list of customer objects with "customerName" and "customerId" properties:

listBox.DataSource = customerListObject;
listBox.DataTextField = "customerName";
listBox.DataValueField = "customerId";
listBox.DataBind();

Edit: I know this works in asp.net - if you are doing a winforms app, it should be pretty similar (I hope...)

Upvotes: 17

Justin Niessner
Justin Niessner

Reputation: 245389

Granted, this isn't going to provide you anything truly meaningful unless the objects have properly overriden ToString() (or you're not really working with a generic list of objects and can bind to specific fields):

List<object> objList = new List<object>();

// Fill the list

someListBox.DataSource = objList;

Upvotes: 6

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