[英]Compose Email with attachment on Windows Phone 8.1 Silverlight application
Here's my function (based on this: https://msdn.microsoft.com/en-us/library/windows/apps/xaml/dn632427.aspx ): 这是我的功能(基于此: https : //msdn.microsoft.com/en-us/library/windows/apps/xaml/dn632427.aspx ):
private async void ComposeEmail(String subject, String messageBody, String attachmentFile)
{
var msg = new EmailMessage();
msg.Subject = subject;
msg.Body = messageBody;
msg.To.Add(new EmailRecipient("example@example.com"));
if (attachmentFile != null && attachmentFile != "")
{
bool exists = File.Exists(attachmentFile);
Debug.WriteLine("File: " + attachmentFile + (exists ? " exists" : " not exists"));
try
{
StorageFile fl = await StorageFile.GetFileFromPathAsync(attachmentFile);
IRandomAccessStream stream = await fl.OpenAsync(FileAccessMode.Read);
var rastream = RandomAccessStreamReference.CreateFromStream(stream);
var attachment = new EmailAttachment(attachmentFile, rastream);
msg.Attachments.Add(attachment);
}
catch (Exception e)
{
Debug.WriteLine("[C#] attachment exception: " + e.Message);
}
}
try
{
await EmailManager.ShowComposeNewEmailAsync(msg);
}
catch (Exception e)
{
Debug.WriteLine("[C#] email manager exception: " + e.Message);
}
}
And here's an output: 这是一个输出:
File: C:\\Data\\Users\\DefApps\\APPDATA\\Local\\Packages\\92319996-2154-4e16-91ac-c74ccb656b65_60jzptcn15482\\AC\\Temp\\screenshot.png exists
文件:C:\\ Data \\ Users \\ DefApps \\ APPDATA \\ Local \\ Packages \\ 92319996-2154-4e16-91ac-c74ccb656b65_60jzptcn15482 \\ AC \\ Temp \\ screenshot.png存在
[C#] email manager exception: The handle with which this oplock was associated has been closed.
[C#]电子邮件管理器异常:与此oplock关联的句柄已关闭。 The oplock is now broken.
oplock现在坏了。 (Exception from HRESULT: 0x80070323)
(HRESULT异常:0x80070323)
First of all file exist, I tried loading it and displaying in image and it works. 首先存在文件,我尝试加载它并在图像中显示它的工作原理。 So this is not an issue with permissions.
所以这不是权限问题。 Second of all if I won't add an attachment (simply commenting out the code) the presented exception won't be raised and I'd see mail composer with correct subject, body etc.
其次,如果我不添加附件(只是注释掉代码),则不会引发所呈现的异常,并且我会看到邮件编辑器具有正确的主题,正文等。
Thanks @Will for hint. 谢谢@Will提示。
Here's a working code: 这是一个有效的代码:
private StorageFile storageFile;
private async void ComposeEmail(String subject, String messageBody, StorageFile fl)
{
var msg = new EmailMessage();
msg.Subject = subject;
msg.Body = messageBody;
msg.To.Add(new EmailRecipient("contact@123kidsfun.com"));
String attachmentFile = fl.Name;
if (fl != null && attachmentFile != "")
{
try
{
var rastream = RandomAccessStreamReference.CreateFromFile(fl);
var attachment = new EmailAttachment(attachmentFile, rastream);
msg.Attachments.Add(attachment);
}
catch (Exception e)
{
Debug.WriteLine("[C#] attachment exception: " + e.Message);
}
}
try
{
await EmailManager.ShowComposeNewEmailAsync(msg);
}
catch (Exception e)
{
Debug.WriteLine("[C#] email manager exception: " + e.Message);
}
}
public void SendEmail(String subject, String body, String attachmentPath)
{
Debug.WriteLine("[C#] sendEmail(" + subject + ", " + body + ", " + attachmentPath + ")");
Dispatcher.BeginInvoke(() =>
{
CreateEmail(subject, body, attachmentPath);
});
}
private async void CreateEmail(String subject, String body, String path)
{
storageFile = await StorageFile.GetFileFromPathAsync(path);
ComposeEmail(subject, body, storageFile);
}
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