2022年10月24日 · Use a combo box (also known as a drop-down list) to present a list of items that a user can select from. A combo box starts in a compact state and expands to show a list of selectable items. A list box is similar to a combo box, but is not collapsible/does not have a compact state. You can learn more about list boxes at the end of this article.

The following code example is a complete application showing how you can use the Add method to add items to a ComboBox, the FindString method to find items in a ComboBox, and the BeginUpdate and EndUpdate methods to efficiently add a large number items to a ComboBox.

The ComboBox allows the user to select an item from a drop-down list or optionally to enter new text in the text box of the control. ComboBox is an ItemsControl, which means it can contain a collection of objects of any type (such as string, image, or panel). For more information, see the ItemsControl class.

2024年9月16日 · In Windows Forms, the ComboBox control combines the features of a TextBox and a ListBox. It displays a single item at a time, with additional items accessible through a drop-down menu. The ComboBox class is part of the System.Windows.Forms namespace in C#. We can create a ComboBox in two ways basically which are – Design-Time and Run-Time.

A combo box is a commonly used graphical user interface widget (or control). Traditionally, it is a combination of a drop-down list or list box and a single-line editable textbox, allowing the user to either type a value directly or select a value from the list. The term "combo box" is sometimes used to mean "drop-down list". [1] .

A combo box is a text box with a list box attached. This type of control enables users to select a predefined value in a list or type their own value in the text box portion of the control. The list is hidden until the user clicks the arrow next to the box. Use a combo box when you want to:

You can make data entry easier by letting users choose a value from a combo box. A combo box combines a text box with a list box to create a drop-down list. You can add a Form Control or an ActiveX Control combo box. If you want to create a combo box that enables the user to edit the text in the text box, consider using the ActiveX Combo Box.

2023年11月16日 · C# ComboBox is a combination of a TextBox and a ListBox control. Only one list item is displayed at one time in a ComboBox and other available items are loaded in a drop down list. In this article, you'll learn how to implement and use a …

2020年12月10日 · A combo box is a unique type of control, defined by the COMBOBOX class, that combines much of the functionality of a list box and an edit control. This section discusses the different kinds of combo boxes. This document discusses features of the combo box.

2022年3月23日 · ComboBoxes allow users to select an option from a drop-down menu list. ComboBoxes can be created in VBA UserForms or with an Excel worksheet. In this tutorial, you will learn how to create and manipulate ComboBoxes in VBA and in Excel worksheets. If you want to learn how to create a Listbox, click here: VBA Listbox.