fontDialog和richTextBox问题 [英] fontDialog and richTextBox problem

问题描述

我有一个fontDialog，按钮和richTextBox.当我单击按钮时，将显示fontDialog.选择字体和样式后，
它会更改所有文本.但我想更改选定的文本或更改光标所在的位置.

I have a fontDialog, button and richTextBox. when I click button, fontDialog shows. after i choose font and style,
it changes all the text. but i wanna change selected text or change from where the cursor is.
Any Idea?

推荐答案

如果已经选择了文本，则只需更改SelectionFont.

如果要从光标到结尾的位置更改，请先设置SelectionLength = TextLength - SelectionStart，然后再更改SelectionFont.

if you already have text selected, then just change the SelectionFont.

If you want to change from where the cursor is to the end, then set the SelectionLength = TextLength - SelectionStart and then change the SelectionFont.

请参阅RichTextBox的文档在 MSDN [

Take a look at the documentation for the RichTextBox on MSDN[^].

About two thirds of the way down that list you should see a link to what you want.

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