file-extension

I've the following C# code, which is using the SaveFileDialog and set's the AddExtension property to true : var dialog = new SaveFileDialog(); dialog.AddExtension = true; dialog.DefaultExt = "txt"; dialog.Filter = "Text files (*.txt)|*.txt|XML files (*.xml)|*.xml"; dialog.OverwritePrompt = true; if (dialog.ShowDialog() == System.Windows.Forms.DialogResult.OK) { label1.Text = dialog.FileName; } And I've tested the following combination of File name and Save as type of the dialog. File name | Save as type | label1.Text | What I expect ----------------+----------------+----------------+----------

Everytime I start a project I have to think carefully about which files to exclude from source control. Has someone made a list of the criteria so I can look it up from the beginning? I work on my own so I have not got round to it. I appreciate that in the case of a DLL, you would want to include some and exclude others, so it is not just dependent on the file extension. My projects are ASP.Net, although a general discussion of other templates would also be useful. From http://blog.goneopen.com/2009/06/git-excludes-for-dotnet/ : .DS_Store ._* TestResults *Resharper* **.ReSharper** **\

After playing around with a new Windows Form project, I discovered that when you associate a file type with an executable in Windows, you can find the file path of the file that launched the application using args[0] from static void Main(string[] args) Is it possible to launch an event on your application when you double click a file if your application is already open? (As obviously Main(string[] args) won't be triggered). Example of an application with behavior I am attempting to replicate: User Opens GIMP(in Windows) User opens explorer and right clicks a .png file User selects open with

I know how to manually associate a specific file or generic extension with a particular OS X application. (Get Info > Open with > Other…) I know how, in OS X, to drag-and-drop a file with an extension onto an 'unsupported' application. (Hold down command-option when dragging over the application) As the author of an OS X application, how can I specify that my application knows how to open a particular file extension? I want my users not to need to use command-option for drag-and-drop. I want my users to see my application listed under "Recommended Applications" instead of "All Applications"

I have a base64 encoded image that I decode and save into an ImageField in Django. I want to give the file a random name, but I don't know the file extension. I have "data:image/png;base64," prepended to the string and I know I could do some regex to extract the mimetype, but I'd like to know if there is a best practices way to go from "data:image/png;base64," to ".png" reliably. I don't want to have my handspun function break when someone suddenly wants to upload a strange image filetype that I don't support. It is best practices to examine the file's contents rather than rely on something

I have a database file with .DB file extension. I have been googling and it looks like SQLite. I tried to connect to it using SQLite and SQLite3 drivers and I am getting an error "File is encrypted or not a database". So I dont know if file is encrypted or it is not an SQLite database. Are there any other options what should the .DB extension should be? How do I find out that file is encrypted? I tried to open it in the text editor and it is mostly a mess of charaters and some times there are words visible. I have uploaded the file here: http://cl.ly/3k0E01373r3v182a3p1o for the closer look.