/// <summary>
/// Determines of the tree tool is enabled for the specified selection of items.
/// </summary>
/// <param name="selection">The selection.</param>
/// <returns>
/// Returns bitwise flag combination of the <see cref="mmToolState" /> to specify if enabled.
/// </returns>
protected virtual int InternalEnabled(IMMTreeViewSelection selection)
{
if (selection == null)
{
return(0);
}
if (selection.Count != 1)
{
return(0);
}
selection.Reset();
IMMPxNode node = (IMMPxNode)selection.Next;
IMMPxTask task = ((IMMPxNode3)node).GetTaskByName(this.Name);
if (task == null)
{
return(0);
}
if (task.get_Enabled(node))
{
return(3);
}
return(0);
}
/// <summary>
/// Called when the user clicks a command.
/// </summary>
/// <remarks>
/// Note to inheritors: override OnClick and use this method to
/// perform the actual work of the custom command.
/// </remarks>
public override void OnClick()
{
try
{
IMMPxApplication pxApp = this.Application.GetPxApplication();
IMMPxNode node = pxApp.GetCurrentNode();
IMMPxTask task = node.GetTask(this.TaskName, true);
task.Execute(node);
}
catch (Exception ex)
{
Log.Error(this.Caption, ex);
}
}
/// <summary>
/// Creates an <see cref="IEnumerable{T}" /> from an <see cref="IMMEnumPxTasks" />
/// </summary>
/// <param name="source">An <see cref="IMMEnumPxTasks" /> to create an <see cref="IEnumerable{T}" /> from.</param>
/// <returns>
/// An <see cref="IEnumerable{T}" /> that contains the fields from the input source.
/// </returns>
public static IEnumerable <IMMPxTask> AsEnumerable(this IMMEnumPxTasks source)
{
if (source != null)
{
source.Reset();
IMMPxTask task = source.Next();
while (task != null)
{
yield return(task);
task = source.Next();
}
}
}
/// <summary>
/// Executes the tree tool within error handling.
/// </summary>
/// <param name="selection">The selection.</param>
protected virtual void InternalExecute(IMMTreeViewSelection selection)
{
// Only enable if 1 item is selected.
if (selection == null || selection.Count != 1)
{
return;
}
// Execute the Task for the specified node.
selection.Reset();
IMMPxNode node = (IMMPxNode)selection.Next;
IMMPxTask task = ((IMMPxNode3)node).GetTaskByName(this.Name);
if (task == null)
{
return;
}
task.Execute(node);
}