大家帮忙看看 我怎么才能把数据换成HTML格式的

C# code:
protected void Button1_Click(object sender, EventArgs e)
{
string str = HttpContext.Current.Server.MapPath("/WebSite1");
str += @"\index.htm";

TextBox1.Text=this.getUrlContent(str);//获取HTML资源

string path = HttpContext.Current.Server.MapPath("/WebSite1");
path += @"\1.htm";

if (!File.Exists(path))
{
using (StreamWriter sw = File.CreateText(path))
{
[color=#FF0000] sw.WriteLine(TextBox1.Text);[/color] }
}
else
{
File.Delete(path);
using (StreamWriter sw = File.CreateText(path))
{
[color=#FF0000]sw.WriteLine(TextBox1.Text);[/color]
}
}
}
private string getUrlContent(string url)
{
if (url == null || url.Trim() == "")
return null;
WebClient wc = new WebClient();
wc.Credentials = CredentialCache.DefaultCredentials;
Byte[] pageData = wc.DownloadData(url);
return System.Text.Encoding.Default.GetString(pageData);//.ASCII.GetString

}

红色部分 将文本框的内容写入 HTML文件  可写进去的有些是乱码
各位大侠 应该怎么改 能让他不是乱码 而是HMTL格式的呢

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up

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UP

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