Telerik DropDownList for Windows Forms is the Telerik version of the standard combobox control. It is a versatile combination of an editing field (RadTextBox) combined with a drop-down list (RadListControl), which allows for looking up and selecting data from the list. The TextBox can be set to accept free-form data input, thus triggering the auto complete mode, or can be read-only and thus forcing the user to select from the entries in the drop-down list.
The controls are tightly coupled to work seamlessly together. The DropDownList and the ListControl share the same structure and properties, virtually eliminating the time you will need to learn a second product, thus increasing your ROI and making development easier than ever.
Telerik DropDownList comes with full autocomplete support, but it is up to you to decide whether users can enter free-form data or just select from the entries in the drop-down list. A single property setting switches editing on or off, making the text box section of the control editable or read-only.
When in editing mode the DropDownList selects or prefills the matching entry from the list as soon as the user starts typing. The different autocomplete modes are Suggest, Append, SuggestAppend, and Off. If you are using multi-line item text, the DropDownList uses the title label only, making programming and operation easier.
Telerik Windows Forms DropDownList and ListControl support automatic sorting, based on the Sorted property of the control - simply set it to Ascending or Descending to sort in the respective order, or deactivate it to restore the initial ordering of the ItemCollection. Sorting may be case-sensitive or case-insensitive. Capital letters are displayed first in the former case.
DropDownList provides rich design-time support, making customizations and configurations very easy. Some key capabilities include:
The controls are shipped with a rich set of pixel-perfect themes that allow you to easily build slick interfaces with the look-and-feel of Windows 8, Office 2010, Office 2013, Metro, etc. The themes can be easily switched using a single property. You can tweak existing themes or build a new theme from scratch to fit your exact visual demands by using the Visual Style Builder productivity tool. A well-thought light element tree allows for easy and intuitive styling.
The DropDownList and ListControl are also capable of displaying images, text, multiline text, and rich text by using standard HTML tags, such as <i>, <b>, and <u>.