GoogleConnect.Fetch引发无法投射对象错误 [英] GoogleConnect.Fetch throws Unable to cast object error
问题描述
我正在将Google API集成到我的项目中.我正在使用以下代码来做到这一点:
I am integrating the Google API into my project. I am using the following code to do so:
public void google()
{
GoogleConnect.ClientId = "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
GoogleConnect.ClientSecret = "xxxxxxxxxxxxxxxxxxxxxxxxxxxx";
GoogleConnect.RedirectUri = Request.Url.AbsoluteUri.Split('?')[0];
if (!string.IsNullOrEmpty(Request.QueryString["code"]))
{
string code = Request.QueryString["code"].ToString();
string json = GoogleConnect.Fetch("me", code.ToString());
GoogleProfile profile = new JavaScriptSerializer().Deserialize<GoogleProfile>(json);
//code for showing data on my page
}
if (Request.QueryString["error"] == "access_denied")
{
ClientScript.RegisterClientScriptBlock(this.GetType(), "alert", "alert('Access denied.')", true);
}
}
public class GoogleProfile
{
public string Id { get; set; }
public string DisplayName { get; set; }
public Image Image { get; set; }
public List<Email> Emails { get; set; }
public string Gender { get; set; }
public string ObjectType { get; set; }
}
public class Email
{
public string Value { get; set; }
public string Type { get; set; }
}
public class Image
{
public string Url { get; set; }
}
它在我单击google按钮时运行,并在第一个实例上显示数据,但是第二次尝试时会引发以下错误.
It runs when I click on the google button and shows data on the first instance but it throws the following error the second time I try it.
"/"应用程序中的服务器错误.无法转换类型的对象"System.String"键入?1?".
Server Error in '/' Application. Unable to cast object of type 'System.String' to type '?1?'.
我在同一屏幕上也有一个facebook和twitter按钮,但我怀疑这是引起问题的原因.任何建议都会有所帮助.
I also have a facebook and twitter button on the same screen but I doubt that it is causing the problem. Any suggestions will be helpful.
推荐答案
我使用过此api,应该使用它在显示个人资料的地方放置一个清除按钮清除创建按钮
i have used this api you should used it place a clear button where you show profile create button clear
protected void Clear(object sender, EventArgs e)
{
GoogleConnect.Clear();
}
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