/// <summary>
/// Form initialize.
/// </summary>
/// <param name="manager"></param>
public SelectionForm(SelectionManager manager)
{
InitializeComponent();
m_manager = manager;
}
/// <summary>
/// Implement this method as an external command for Revit.
/// </summary>
/// <param name="commandData">An object that is passed to the external application
/// which contains data related to the command,
/// such as the application object and active view.</param>
/// <param name="message">A message that can be set by the external application
/// which will be displayed if a failure or cancellation is returned by
/// the external command.</param>
/// <param name="elements">A set of elements to which the external application
/// can add elements that are to be highlighted in case of failure or cancellation.</param>
/// <returns>Return the status of the external command.
/// A result of Succeeded means that the API external method functioned as expected.
/// Cancelled can be used to signify that the user cancelled the external operation
/// at some point. Failure should be returned if the application is unable to proceed with
/// the operation.</returns>
public Result Execute(Autodesk.Revit.UI.ExternalCommandData commandData, ref string message, ElementSet elements)
{
try
{
SelectionManager manager = new SelectionManager(commandData);
// Create a form to select objects.
DialogResult result = System.Windows.Forms.DialogResult.None;
while (result == DialogResult.None || result == DialogResult.Retry)
{
// Picking Objects.
if (result == DialogResult.Retry)
{
manager.SelectObjects();
}
// Show the dialog.
using (SelectionForm selectionForm = new SelectionForm(manager))
{
result = selectionForm.ShowDialog();
}
}
return Autodesk.Revit.UI.Result.Succeeded;
}
catch (Exception ex)
{
// If any error, give error information and return failed
message = ex.Message;
return Autodesk.Revit.UI.Result.Failed;
}
}