You have probably created the wrong kind of project.
For example, System.Windows.Controls.ListBox doesn't contain a DrawMode property.
문제
Probably a simple question, but still a mystery:
Error: 'System.Windows.Forms.ListBox' does not contain a definition for 'DrawMode' ...
How is this possible? Yesterday I tinkered with DrawMode and made a great listbox. Now in the same Visual Studio 2008 environment, but different project, this error. ListBox.SelectedItem etc is available, why not .DrawMode ??? I do have 'using System.Windows.Forms;' in my source.
OK This is what I found in the microsoft manual:
The .NET Compact Framework does not support the DrawMode, DrawItem, and other drawing members for list box and other controls, but you can program that functionality.
I am back into programming.
해결책
You have probably created the wrong kind of project.
For example, System.Windows.Controls.ListBox doesn't contain a DrawMode property.
다른 팁
You probably confused System.Windows.Forms.ListBox
from windows forms with the one from asp.net webforms System.Web.UI.WebControls.ListBox
or the one of WPF System.Windows.Controls.ListBox
(which both do not have that property).