C#.net windows窗体;通过picturebox上传带有cloudinary的图片

Question

首先，我是.net/C#的新手

我希望用户通过图片框选择一张图片，该图片应直接上传到cloudinary。

public static Cloudinary cloudinary;
public const string CLOUD_NAME = "XXXXXX";
public const string API_KEY = "XXXXXXX";
public const string API_SECRET = "XXXXXX";
string imagePath = "";
static void cloudinaryAccount(string[] args)
{
Account account = new Account(CLOUD_NAME, API_KEY, API_SECRET);
cloudinary = new Cloudinary(account);
}
private void pictureBox1_Click(object sender, EventArgs e)
{
OpenFileDialog dialog = new OpenFileDialog();
dialog.Filter = "All files(*.*)|*.*";
if (dialog.ShowDialog() == DialogResult.OK)
{
imagePath = dialog.FileName.ToString();
pictureBox1.ImageLocation = imagePath;
}
uploadImage(imagePath); // pass the path of the image to the uploadImage() function.
}
public static void uploadImage(string imagePath)
{
var UploadParams = new ImageUploadParams()
{
File = new FileDescription(imagePath)
};

var uploadResult = cloudinary.Upload(UploadParams);
}

但当涉及到cloudinary.Upload(UploadParams)时，它会抛出

这个错误

所以可能是因为cloudinary为空。所以如果我移动

Account account = new Account(CLOUD_NAME, API_KEY, API_SECRET);
cloudinary = new Cloudinary(account);

进入uploadImage(string imagePath)函数，我得到以下错误：

System.IO.FileNotFoundException："无法加载文件或程序集"Newtonsoft.Json，Version=12.0.0.0，Culture=neutral，PublicKeyToken=30Ad4fe6b2a6eed"或其依赖项之一。"。系统找不到指定的文件。'

我按照这里的步骤修复了它，现在它正在工作。

Answer 1

确保在调用upload:之前运行以下行

cloudinary = new Cloudinary(account);