Why aren't you binding the ArrayList directly? You can sort it as well,
using the Sort() method.
FB
> I'm writing a user profile tool that manipulates information
> in an LDAP server. I'm using an abstraction layer that talks
> directly to the server (written by another developer). The
> function of the abstraction layer that returns a list of all
> the users in LDAP returns an ArrayList. For easier filtering
> and sorting of this data, I build a DataTable in code,
> returning its default view so it can be bound to a DataGrid.
>
> The app currently takes between 15-20 seconds to load
> approximately 800 users from the LDAP source into memory,
> cache the user information, and display the page (DataGrid
> displays 20 users per page). The vast majority of that time
> (13-18 seconds) is consumed by the foreach loop that puts
> each ArrayList element into the
>
> The code in question looks like the following:
>
> ArrayList userList = theDirectory.getUsers();
>
> if (userList != null)
> {
> foreach (UserDirectoryObject user in userList)
> {
> DataRow drUser = tblUsers.NewRow();
> drUser["lastName"] = user.lastName;
> drUser["firstName"] = user.firstName;
> /* etc */
> tblUsers.Rows.Add(drUser);
> }
> }
>
> tblUsers.DefaultView.Sort = "lastName";
> return tblUsers.DefaultView
>
>
> Any suggestions about how to increase the speed of this would
> be greatly appreciated.
>
> Thanks!
>
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