// Remove a user in the FlickrLoginAccountName list.
// By using this method, we trigger the property changed event and set IsChanged.
public bool RemoveFlickrLoginAccountName(User user)
{
int index = FlickrLoginAccountList.ToList <User>().FindIndex(x => x.UserName == user.UserName);
if (index < 0)
{
MessageBox.Show("Unexpected error. The user '" + user.UserName + "' is not found.");
return(false);
}
else
{
FlickrLoginAccountList.RemoveAt(index);
OnPropertyChanged("FlickrLoginAccountList");
IsChanged = true;
FlickrLoginAccountList.ResetBindings();
if (FlickrLoginAccountList.Count == 0)
{
FlickrLoginAccountName = "";
}
else if (index < FlickrLoginAccountList.Count)
{
FlickrLoginAccountName = FlickrLoginAccountList[index].UserName;
}
else
{
FlickrLoginAccountName = FlickrLoginAccountList[index - 1].UserName;
}
UpdateEnabledProperties();
return(true);
}
}
// Add a new user or replace an existing user to the FlickrLoginAccountName list.
// By using this method, we trigger the property changed event and set IsChanged.
// If the user replaces an element in the list directly, these don't occur.
public void AddReplaceFlickrLoginAccountName(User newUser)
{
// Find where to insert in the list.
// It's a small list, don't bother with binary search
int index = 0;
while (index < FlickrLoginAccountList.Count)
{
int compare = String.Compare(FlickrLoginAccountList[index].UserName, newUser.UserName, StringComparison.OrdinalIgnoreCase);
if (compare == 0)
{
// Found matching name, replace it
FlickrLoginAccountList[index] = newUser;
break;
}
else if (compare > 0)
{
// Found name beyond the new user name, so insert before here.
FlickrLoginAccountList.Insert(index, newUser);
break;
}
index++;
}
if (index >= FlickrLoginAccountList.Count)
{
// NewUser is beyond end of list. Add to the end.
FlickrLoginAccountList.Add(newUser);
}
OnPropertyChanged("FlickrLoginAccountList");
IsChanged = true;
FlickrLoginAccountList.ResetBindings();
FlickrLoginAccountName = newUser.UserName;
UpdateEnabledProperties();
}
