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[英]system.io.file' does not contain a definition for readalltext on webplayer in Unity
[英]System.IO.File does not contain ReadAllBytes C#
在 C# 中,我正在為 WP7 創建簡單的 facebook 應用程序,但遇到了一個問題。
我正在嘗試做您可以在相冊或提要中上傳圖片的部分。
代碼:
FacebookMediaObject facebookUploader = new FacebookMediaObject { FileName = "SplashScreenImage.jpg", ContentType = "image/jpg" };
var bytes = System.IO.File.ReadAllBytes(Server.MapPath("~") + facebookUploader.FileName);
facebookUploader.SetValue(bytes);
錯誤:
你有幾個問題。 首先,Server.MapPath 不會為您提供文件位置(因為您不在 web 應用程序中)。 但是,一旦您知道要查找的文件路徑(在 IsolatedStorage 中),您就可以執行以下操作以將文件作為字節數組讀取:
public byte[] ReadFile(String fileName)
{
byte[] bytes;
using (IsolatedStorageFile appStorage = IsolatedStorageFile.GetUserStoreForApplication())
{
using (IsolatedStorageFileStream file = appStorage.OpenFile(fileName, FileMode.Open, FileAccess.Read))
{
bytes = new byte[file.Length];
var count = 1024;
var read = file.Read(bytes, 0, count);
var blocks = 1;
while(read > 0)
{
read = file.Read(bytes, blocks * count, count);
blocks += 1;
}
}
}
return bytes;
}
我找到了解決方案。
代碼:
string imageName = boxPostImage.Text;
StreamResourceInfo sri = null;
Uri jpegUri = new Uri(imageName, UriKind.Relative);
sri = Application.GetResourceStream(jpegUri);
try
{
byte[] imageData = new byte[sri.Stream.Length];
sri.Stream.Read(imageData, 0, System.Convert.ToInt32(sri.Stream.Length));
FacebookMediaObject fbUpload = new FacebookMediaObject
{
FileName = imageName,
ContentType = "image/jpg"
};
fbUpload.SetValue(imageData);
IDictionary<string, object> parameters = new Dictionary<string, object>();
parameters.Add("access_token", _AccessToken);
parameters.Add("source", fbUpload);
//_fbClient.PostAsync("/"+MainPage._albumId+"/photos", parameters);
_fbClient.PostAsync("/me/photos", parameters);
MessageBox.Show("Image has been posted successfully..");
}
catch (Exception error)
{
MessageBox.Show("Sorry, there's an error occured, please try again.");
}
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