WPF ComboBox 编辑文本自动完成

Question

I have a ComboBox that contains a list of words. Some of them are abbrivations consisting of capital letters. Let's assume you have the following words in the list:

... other words
CA
... other words

When you type the c (lowercase) the ComboBox makes the c uppercase and displays a selected capital A afterwards. When you continue typing "ar" the text in the ComboBox results in "CAr" though you typed "car" (all lowercase). The word "car" is not a member of the list. Is there a way to get the WinForms ComboBox' behaviour or at lease make sure that the uppercase/lowercase is preserved for words that are not part of the attached word list.

Answer 1

You can set

<ComboBox IsTextSearchCaseSensitive="True" />

to enable context-sensitive searching which preserves the case of the letters.

Answer 2

Hi Very late to the party. ShouldPreserveUserEnteredPrefixProperty will prevent the combobox autocomplete changing the case of the text you've already entered :)

It only works when IsTextSearchCaseSensitive = false .