RichTextBox的Select(int begin,int length)问题，高手来指教下~

[mykelly6]

我给RichTextBox设的值是"[e-mail],[e-mail],[e-mail],[e-mail],[e-mail],[e-mail]"
这样的形式，然后我就希望在鼠标点击RichTextBox的时候能选中鼠标所在位置的邮件地址。
我感觉是要获得鼠标之前和之后的两个逗号的位置，但是具体怎么做就不知道了~

不知道说明白这个问题没有，希望大家指点一下

[mykelly6]

谁来指点一下呢~

[mykelly6]

没人会吗？那大家随便回几个，当散分了~

[mykelly6]

随便来个人让我揭帖吧！怨念了。。。

[tianjinldl]

帮你顶下，我不会

[特别]

凑合一下

       private void richTextBox1_Click( object sender, EventArgs e )
        {
            int start = -1;          //开始位置
            int end = -1;     //结束位置

            start = richTextBox1.Text.Substring( 0, richTextBox1.SelectionStart ).LastIndexOf( ',' );
            end = richTextBox1.Text.Substring( richTextBox1.SelectionStart ).IndexOf( ',' );

            if ( start == -1 )
            {
                start = 0;
            }
            else
            {
                start++;        //取逗号后一个位置
            }

            if ( end == -1 )
            {
                end = richTextBox1.Text.Length;
            }
            else
            {
                end = end + richTextBox1.SelectionStart - 1;        //取逗号前一个位置
            }

            //选择
            richTextBox1.Select( start, end - start + 1 );
        }

[lizhengnan]

    Private Sub RichTextBox1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RichTextBox1.Click
        If RichTextBox1.Text = "" Then
            Exit Sub
        End If

        If Not RichTextBox1.Text.Contains(",") Then
            RichTextBox1.SelectAll()
            Exit Sub
        End If

        Dim i As Integer = RichTextBox1.SelectionStart
        Dim m As Integer = i
        Dim n As Integer = i
        While m > 0 AndAlso RichTextBox1.Text.Chars(m) <> ","
            m -= 1
        End While
        If RichTextBox1.Text.Chars(m) = "," Then
            m += 1
        End If
        While n < RichTextBox1.Text.Length AndAlso RichTextBox1.Text.Chars(n) <> ","
            n += 1
        End While

        Me.RichTextBox1.Select(m, n - m)
    End Sub

[lizhengnan]

if (RichTextBox1.Text == "") 
{
Return;
}

        if (RichTextBox1.Text.Contains(",")==false)
{
            RichTextBox1.SelectAll();
            return;
}


        int i =RichTextBox1.SelectionStart;
        int m  = i;
        int n  = i;
        While (m > 0 && RichTextBox1.Text.Chars[m] != ",")
{
m--;
}

        if (RichTextBox1.Text.Chars[m] == ",")
           { m += 1;}
        While (n < RichTextBox1.Text.Length && RichTextBox1.Text.Chars[n] != ",")
{
n++;
}

        RichTextBox1.Select(m, n - m);

[mykelly6]

揭帖加分了再看答案~