我被卡住了。我一直在尝试不同的方法将6个头像字符串的结果加载到picturebox控件数组的加载方法中。

这就是我必须迭代（mysql结果集）值字符串到pictureboxes的内容

PictureBox[] avatars = { peer1, peer2, peer3, peer4, peer5, peer6 };

foreach (DataRow row in dt.Rows)
{
   string url = "https://example.com/" + row["avatar"];

   for (int i = 0; i < avatars.Length; i++)
   {
       avatars[i].Load(url);
   }
}

但是每个图片框都显示为白色（空白）。如果我将SQL查询设置为LIMIT 1，我将为每个图片框获得相同的第一个头像。但它不会相应地分配，或者根本不会。

我如何才能循环到我的6个图片框正确的网址？谢谢你们

编辑

我也尝试过这样做，但没有运气

List<string> AvatarList = new List<string>();

PictureBox[] avatars = { peer1, peer2, peer3, peer4, peer5, peer6 };

foreach (DataRow row in dt.Rows)
{
    AvatarList.Add("https://example.com/" + row["avatar"]);
}

for (int i = 0; i < AvatarList.Count; i++)
{
    for (int x = 0; x < avatars.Length; x++)
    {
         avatars[x].Load(AvatarList[i]);
     }
}

PictureBox[] avatars = { peer1, peer2, peer3, peer4, peer5, peer6 };

foreach (var pb in avatars)
{
   foreach (DataRow row in dt.Rows)
   {
        string url = "https://example.com/" + row["avatar"];
        pb.Load(url);
    }
}

已解决

在这种类似的情况下阅读，答案如下

private bool CacheReadAvatars = true; // Image caching?

PictureBox[] avatars = { peer1, peer2, peer3, peer4, peer5, peer6 };

            foreach (DataRow row in dt.Rows)
            {
                if (CacheReadAvatars != false)
                {
                    SaveImage("https://example.com/" + row["avatar"], CachePath + "/peer_" + row["user_id"] + ".jpg");
                    AvatarList.Add(CachePath + "/peer_" + row["user_id"] + ".jpg");
                }
                else
                {
                    AvatarList.Add("https://example.com/" + row["avatar"]);
                }
            }

            for (int i = 0; i < AvatarList.Count; i++)
            {
                if (CacheReadAvatars != false)
                {
                    avatars[i].Image = Image.FromFile(AvatarList[i]);
                }
                else
                {
                    avatars[i].Load(AvatarList[i]);
                }
            }

public void SaveImage(string imageUrl, string filename)
        {
            WebClient client = new WebClient();
            Stream stream = client.OpenRead(imageUrl);
            Bitmap bitmap; bitmap = new Bitmap(stream);

            if (bitmap != null)
            {
                bitmap.Save(filename, ImageFormat.Jpeg);
            }

            stream.Flush();
            stream.Close();
            client.Dispose();
        }

我冒昧地允许图像缓存，以防我想限制HTTP请求、数据使用等。