无效的 URI:无法确定 URI 的格式 [英] Invalid URI: The format of the URI could not be determined

问题描述

我不断收到此错误.

无效的 URI:无法确定 URI 的格式.

Invalid URI: The format of the URI could not be determined.

我的代码是:

Uri uri = new Uri(slct.Text);
if (DeleteFileOnServer(uri))
{
    nn.BalloonTipText = slct.Text + " has been deleted.";
    nn.ShowBalloonTip(30);
}

更新:slct.Text中的内容为ftp.jt-software.net/style.css.

Update: the content in slct.Text is ftp.jt-software.net/style.css.

什么给?这怎么不是一个有效的 URI 格式?这是纯文本.

What gives? How is that not a valid URI format? It's plain text.

推荐答案

为 Uri 使用不同的构造函数可能会有所帮助.

It may help to use a different constructor for Uri.

如果你有服务器名称

string server = "http://www.myserver.com";

并有一个相对的 Uri 路径来附加到它，例如

and have a relative Uri path to append to it, e.g.

string relativePath = "sites/files/images/picture.png"

当从这两个创建 Uri 时，我得到无法确定格式"异常，除非我使用带有 UriKind 参数的构造函数，即

When creating a Uri from these two I get the "format could not be determined" exception unless I use the constructor with the UriKind argument, i.e.

// this works, because the protocol is included in the string
Uri serverUri = new Uri(server);

// needs UriKind arg, or UriFormatException is thrown
Uri relativeUri = new Uri(relativePath, UriKind.Relative); 

// Uri(Uri, Uri) is the preferred constructor in this case
Uri fullUri = new Uri(serverUri, relativeUri);

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