为什么我的WPF TextBox不显示任何字符？

Question

I have an application which includes a DLL written in WPF. This application starts with the login window (the application is a Windows Form and the DLL is in WPF). When I type the user name or password I can't see the characters in the textbox, but they are saved in the Text 1 property of both the textBox or the passwordBox as expected.

What could explain this behavior, and how can I fix it so that I see the characters as they're typed?

Answer 1

I have seen this in your scenario: when the WPF window is hosted from a Windows Form application.

You need to run the WPF window in a separate thread to avoid this problem.

Answer 2

Maybe could it be the foreground color which is equal to the background color ? If you try selecting text after typing, do you get something ?

Answer 3

前景和背景是不一样的，我已经检查了...我得到了我输入的文字，但我看不到它，这是我见过的最奇怪的事情....我已经开了另一个项目