how to highlight/select text in a wpf textbox without focus?

问题

I want to highlight selected text in a wpf textbox while the textbox is not focused. In my application, my textbox never gets focus, and every key input is done manually.

I was wondering if there is a way to highlight the selected text when the textbox is not focused?

Any help would be appreciated!

回答1:

You can use the following code to achieve your purpose:

textBoxToHighlight.Focus();
textBoxToHighlight.Select(0, textBoxToHighlight.Text.Length);

Hope this helps. Here's the source.

回答2:

Another alternative:

textBoxName.SelectAll();

来源：https://stackoverflow.com/questions/12094937/how-to-highlight-select-text-in-a-wpf-textbox-without-focus