使用C＃，如何在项目中将Url属性设置为HTML文件？

I have the following code:

我有以下代码:

if (System.IO.File.Exists(htmlLocation))
{
    vEarthBrowser.ObjectForScripting = this;
    vEarthBrowser.Url = new Uri(htmlLocation);
}
else
{
    throw new Exception("HTML file not found!");
}
if (Syst