c# - 如何从 ASP.NET 中的 http 标头获取“Guid”变量

Question

以下行给出错误（无法将类型“string”转换为“System.Guid”）

userId = Request.QueryString["id"];

有什么解决方案可以在 http 标头 Get 中传递 Guid 变量吗？

Answer 1

try {
    userId = new Guid(Request.QueryString["id"]);
} catch (FormatException e) {
    /*
     * It's possible that the guid is not properly formatted and an
     * exception will be thrown, so handle that here.
     */
}