C# .net windows 窗体；通过图片框上传带有cloudinary的图像[重复]

Posted 2023-03-25

【中文标题】C# .net windows 窗体；通过图片框上传带有cloudinary的图像[重复]

【英文标题】：C# .net windows forms; upload image with cloudinary through picturebox [duplicate]

【发布时间】：2020-12-08 16:48:59

【问题描述】：

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，图片应该直接上传到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);

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

this error

所以这可能是因为它cloudinary 为空。 所以如果我搬家

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=30ad4fe6b2a6aeed' 或其依赖项之一。系统找不到指定的文件。'

我按照here 的步骤进行了修复，现在可以使用了。

【问题讨论】：

使用你的调试器。

【参考方案1】：

确保在调用 upload 之前运行以下行：

cloudinary = new Cloudinary(account);

【讨论】：

我做了，之后我得到了这个错误：System.IO.FileNotFoundException: 'Could not load file or assembly'Newtonsoft.Json, Version=12.0.0.0, Culture=neutral, PublicKeyToken =30ad4fe6b2a6aeed' 或其依赖项之一。系统找不到指定的文件。'