Text Replacing code

[netman06]

Hello,

I'm trying to figure out how to replace characters with a word.

Like this d would be delta, D would be Delta.

I have been trying strings, streambuilder, with no luck.

private void button1_Click(object sender, EventArgs e)
        {
            string strValue = "dD";

            string strResult0 = strValue.Replace("D", "Delta", "d", "delta");

            MessageBox.Show(strResult0);

Any suggestions would be great.

Thanks,

Mike