I'm having trouble figuring out how to add items to a ListBox
in WinForms.
I have tried:
list.DisplayMember = "clan";
list.ValueMember = sifOsoba;
How can I add ValueMember
to the list with an int
value and some text for the DisplayMember
?
list.Items.add(?)
Btw. I can't use ListBoxItem
for any reasons.
To add items to a ListBox, select the ListBox control and get to the properties window, for the properties of this control. Click the ellipses (...) button next to the Items property. This opens the String Collection Editor dialog box, where you can enter the values one at a line.
When a user enters some text into a TextBox and clicks on the add Button, text will be shown in the ListBox. After that, select text from the ListBox and click on the Delete Button to remove the text from the ListBox control.
To bind a ComboBox or ListBox control If you are binding to a table, set the DisplayMember property to the name of a column in the data source. If you are binding to an IList, set the display member to a public property of the type in the list.
In Windows Forms, ListBox control is used to show multiple elements in a list, from which a user can select one or more elements and the elements are generally displayed in multiple columns. The ListBox class is used to represent the windows list box and also provide different types of properties, methods, and events.
ListBoxItem is a WPF class, NOT a WinForms class.
For WPF, use ListBoxItem.
For WinForms, the item is a Object type, so use one of these:
1. Provide your own ToString() method for the Object type.
2. Use databinding with DisplayMemeber and ValueMember (see Kelsey's answer)
list.Items.add(new ListBoxItem("name", "value"));
The internal (default) data structure of the ListBox is the ListBoxItem.
In WinForms, ValueMember
and DisplayMember
are used when data-binding the list. If you're not data-binding, then you can add any arbitrary object as a ListItem
.
The catch to that is that, in order to display the item, ToString()
will be called on it. Thus, it is highly recommended that you only add objects to the ListBox where calling ToString()
will result in meaningful output.
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