/// <summary>
/// Creates an <see cref="IEnumerable{T}" /> from an <see cref="IEnumWorkspaceEx" />
/// </summary>
/// <param name="source">An <see cref="IEnumWorkspaceEx" /> to create an <see cref="IEnumerable{T}" /> from.</param>
/// <returns>An <see cref="IEnumerable{T}" /> that contains the feature classes from the input source.</returns>
public static IEnumerable <IWorkspace> AsEnumerable(this IEnumWorkspaceEx source)
{
if (source != null)
{
source.Reset();
IWorkspace workspace = source.Next();
while (workspace != null)
{
yield return(workspace);
workspace = source.Next();
}
}
}
/// <summary>
/// Gets the workspace that satisifies the <paramref name="predicate" /> criteria.
/// map.
/// </summary>
/// <param name="source">The source.</param>
/// <param name="predicate">A function to test each element for a condition.</param>
/// <returns>
/// Returns a <see cref="IWorkspace" /> representing the workspace in the map that is being edited.
/// </returns>
/// <exception cref="ArgumentNullException">predicate</exception>
public static IWorkspace GetWorkspace(this IMap source, Predicate <IWorkspace> predicate)
{
if (source == null)
{
return(null);
}
if (predicate == null)
{
throw new ArgumentNullException("predicate");
}
IMMWorkspaceManagerMap manager = new MMWorkspaceManagerClass();
IEnumWorkspaceEx workspaces = manager.GetMapWorkspaces(source);
return(workspaces.AsEnumerable().FirstOrDefault(workspace => predicate(workspace)));
}