[英]Only Open file with process.start if not open yet
in my program people can open any sort of file with the method below.在我的程序中,人们可以使用以下方法打开任何类型的文件。 I got the feedback that they can open the same file more than once.
我得到的反馈是他们可以多次打开同一个文件。 Meaning having the same file open a few times at the same time.
意思是同时打开同一个文件几次。 How do I prevent this?
我该如何防止这种情况? Process.Start seemed the best option but I am open to suggestions.
Process.Start 似乎是最好的选择,但我愿意接受建议。
This question seems similar but I can't get it to work: Is there a way to check if a file is in use?这个问题看起来很相似,但我无法让它工作: Is there a way to check if a file is in use?
Used method:使用方法:
public void ShowFile(ModelDocument model)
{
if (model != null)
{
try
{
string locationFileName = model.DocumentPath;
using (Process process = new Process())
{
ProcessStartInfo startInfo = new ProcessStartInfo();
process.StartInfo = startInfo;
startInfo.FileName = locationFileName;
process.Start();
}
}
catch (System.Exception ex)
{
//log error
}
}
}
More context:更多背景:
I have a scheduler where people can attach any document/mail to an appointment.我有一个日程安排程序,人们可以在其中将任何文档/邮件附加到约会中。
These get copied or moved to a folder specific for that appointment.这些将被复制或移动到特定于该约会的文件夹中。 In my database I store the path and other info concerning the file.
在我的数据库中,我存储有关文件的路径和其他信息。 In the appointment screen they can double-click a file in a GridView to open it.
在约会屏幕中,他们可以双击 GridView 中的文件将其打开。 These files can be anything from pdf's to msg (Mails).
这些文件可以是从 pdf 到 msg(邮件)的任何文件。
Hm, sounds like a case where you want to keep all currently opened files paths at hand in a form of a list to compare the next file path against it and decline attempt if the file is open already.嗯,听起来像是您想以列表的形式保留所有当前打开的文件路径,以便将下一个文件路径与其进行比较,如果文件已经打开则拒绝尝试。
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