Question

RichTextBox控件中如何出现不同颜色文字

能否给个实例,让该控件中的文字呈现不同的颜色
RichTextBox1.SelColor = vbRed'
可以了 ,再加个RichTextBox1.SelText

Answer 1

protected override void OnTextChanged(EventArgs e)
{
if (boolLinkStyle)
{
int intCharIndex;
int intLine;
int intCurIdx;
string strLine;
char ch;
Font newFont;
Font oldFont;
Color oldColor;

oldFont = this.Font;
newFont = new Font(oldFont, FontStyle.Underline);
oldColor = this.ForeColor;
intCurIdx = this.SelectionStart;
this.SelectAll();
this.SelectionFont = oldFont;
this.SelectionColor = oldColor;

for (int i = 0; i < this.TextLength; i++)
{
ch = Convert.ToChar(this.Text.Substring(i, 1));
intCharIndex = i;
if (ch != '【' && ch != '】')
{
intLine = this.GetLineFromCharIndex(intCharIndex);
strLine = this.Text;
if ((strLine.Substring(0, intCharIndex).LastIndexOf("【") >= 0 && strLine.IndexOf("】", intCharIndex) >= 0) &&
((strLine.Substring(0, intCharIndex).LastIndexOf("【") >= 0 && strLine.IndexOf("【", intCharIndex) < 0) ||
(strLine.IndexOf("【", intCharIndex) > strLine.IndexOf("】", intCharIndex)) &&
(strLine.IndexOf("【", intCharIndex) >= 0 && (strLine.IndexOf("【", intCharIndex) > strLine.IndexOf("】", intCharIndex)))))
{
this.Select(intCharIndex, 1);
this.SelectionColor = Color.Blue;
this.SelectionFont = newFont;
}
}
}
this.Select(intCurIdx, 0);
}
base.OnTextChanged(e);
}

Answer 2

RichTextBox1.SelColor = vbRed'设置选定的文本颜色为red