RichTextBox中实现选中文字的粗体，斜体，删除线，下划线，颜色 (答对就给分结贴)

[wenjunsu]

RT!
我的开发平台是Visual Studio 2008，开发语言是vb.net
最先回答正确的，分就给你了！
麻烦各位了！谢谢！

[Bullatus]

[Quote=引用 1 楼 ZengHD 的回复:]
VB.NET code Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
RichTextBox1.SelectionColor = Color.Red
RichTextBox1.SelectionFont = New Font("Ariel", 20, FontStyle.Bold or FontStyle.Italic or FontStyle.Strikeout or FontStyle.Underline )
End Sub
[/Quote]
就是这样的

[wenjunsu]

是分开实现，不是在一起实现！
是点击一个按钮，实现一个特征！
比如点击button1，实现选中字的粗体
比如点击button2，实现选中字的斜体

[wenjunsu]

虽然不是我的要求，算了，GF！

[ZengHD]

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        RichTextBox1.SelectionColor = Color.Red
        RichTextBox1.SelectionFont = New Font("Ariel", 20, FontStyle.Bold or FontStyle.Italic or FontStyle.Strikeout or  FontStyle.Underline )
    End Sub

[wangyanboq]

richTextBox1.SelectionStart = 0;
richTextBox1.SelectionLength = 3;

Font oldFont = this.richTextBox1.SelectionFont;
Font newFont = new Font(oldFont, oldFont.Style | FontStyle.Bold | FontStyle.Italic | FontStyle.Underline | FontStyle.Strikeout);
richTextBox1.SelectionFont = newFont;
richTextBox1.SelectionColor = Color.Red;