public static void Main()
{
// Initializes a new AF_FileAssociator to associate the .ABC file extension.
AF_FileAssociator assoc = new AF_FileAssociator(".abc");
// Creates a new file association for the .ABC file extension. Data is overwritten if it already exists.
assoc.Create("My_App",
"My application's file association",
new ProgramIcon(@"C:\Program Files\My_App\icon.ico"),
new ExecApplication(@"C:\Program Files\My_App\myapp.exe"),
new OpenWithList(new string[] { "My_App" }));
// Gets each piece of association info individually, all as strings.
string id = assoc.ID;
string description = assoc.Description;
string icon = assoc.DefaultIcon.IconPath;
string execApp = assoc.Executable.Path;
string[] openWithList = assoc.OpenWith.List;
// Sets each peice of association info individually.
ProgramIcon newDefIcon = new ProgramIcon(@"C:\Program Files\My_App\icon2.ico");
ExecApplication newExecApp = new ExecApplication(@"C:\Program Files\My_App\myapp2.exe");
OpenWithList newOpenWith = new OpenWithList(new string[] { "myapp2.exe" });
assoc.ID = "My_App_2";
assoc.Description = "My application's file association #2";
assoc.DefaultIcon = newDefIcon;
assoc.Executable = newExecApp;
assoc.OpenWith = newOpenWith;
// Gets the extension of the associator that was set when initializing it.
string extension = assoc.Extension;
// Deletes any keys that were associated with the .ABC file extension.
assoc.Delete();
}
/// <summary>
/// Create or overwrite a current file association for this FileAssociator's set extension.
/// </summary>
/// <param name="progID">The basic application name that uses this file extension.</param>
/// <param name="description">The desription of this file extension and/or program that uses it.</param>
/// <param name="defaultIcon">The icon to show on the program and it's files.</param>
/// <param name="execApp">The application that will be run when the file extension is clicked.</param>
/// <param name="openWith">The programs that appear in the OpenWith list.</param>
/// <exception cref="Exception">Thrown when an error occurs that will prevent it from working correctly.</exception>
public void Create(string progID, string description, ProgramIcon defaultIcon, ExecApplication execApp, OpenWithList openWith)
{
if (progID != null)
{
if (defaultIcon.IsValid && execApp.IsValid)
{
Registry.ClassesRoot.CreateSubKey(Extension).SetValue("", progID);
RegistryKey key = Registry.ClassesRoot.CreateSubKey(progID,
RegistryKeyPermissionCheck.ReadWriteSubTree);
if (description != null)
{
key.SetValue("", description, RegistryValueKind.String);
}
if (defaultIcon != null && defaultIcon.IsValid)
{
key.CreateSubKey("DefaultIcon").SetValue("", defaultIcon.IconPath, RegistryValueKind.String);
}
else
{
throw new Exception("The default icon you entered is either null or doesn't exist...");
}
if (execApp != null && execApp.IsValid)
{
key.CreateSubKey(@"Shell\Open\Command").SetValue("", execApp.Path + " %1", RegistryValueKind.String);
}
else
{
throw new Exception("The executable application you entered is either null or not an .exe format...");
}
if (openWith != null)
{
key = key.CreateSubKey("OpenWithList", RegistryKeyPermissionCheck.ReadWriteSubTree);
foreach (string file in openWith.List)
{
key.CreateSubKey(file);
}
}
key.Flush();
key.Close();
}
else
{
throw new Exception("Either the icon or executable application object is invalid...");
}
}
else
{
throw new Exception("The program ID you entered is null...");
}
}