/// <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 Autodesk.Revit.UI.Result Execute(ExternalCommandData commandData,
ref string message,
ElementSet elements)
{
try
{
//Retrieves the currently active project.
UIDocument doc = commandData.Application.ActiveUIDocument;
// must select a element first
ElementSet elementSet = doc.Selection.Elements;
if (1 != elementSet.Size)
{
message = "Please select one structural element which is listed as follows: \r\n" +
"Columns/braces/Beams/Walls/Wall Foundations/Slabs/Foundation Slabs";
return(Autodesk.Revit.UI.Result.Cancelled);
}
Transaction tran = new Transaction(doc.Document, "BoundaryConditions");
tran.Start();
// deal with the selected element
foreach (Element element in elementSet)
{
// the selected element must be a structural element
if (!IsExpectedElement(element))
{
message = "Please select one structural element which is listed as follows: \r\n" +
"Columns/braces/Beams/Walls/Wall Foundations/ \r\n" +
"Slabs/Foundation Slabs";
return(Autodesk.Revit.UI.Result.Cancelled);
}
// prepare the relative data
BoundaryConditionsData dataBuffer = new BoundaryConditionsData(element);
// show UI
using (BoundaryConditionsForm displayForm = new BoundaryConditionsForm(dataBuffer))
{
DialogResult result = displayForm.ShowDialog();
if (DialogResult.OK == result)
{
tran.Commit();
return(Autodesk.Revit.UI.Result.Succeeded);
}
else if (DialogResult.Retry == result)
{
message = "failed to create BoundaryConditions.";
tran.RollBack();
return(Autodesk.Revit.UI.Result.Failed);
}
}
}
tran.RollBack();
// user cancel the operation
return(Autodesk.Revit.UI.Result.Cancelled);
}
catch (Exception e)
{
message = e.Message;
return(Autodesk.Revit.UI.Result.Failed);
}
}
/// <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 Autodesk.Revit.UI.Result Execute(ExternalCommandData commandData,
ref string message,
ElementSet elements)
{
try
{
//Retrieves the currently active project.
UIDocument doc = commandData.Application.ActiveUIDocument;
// must select a element first
ElementSet elementSet = doc.Selection.Elements;
if (1 != elementSet.Size)
{
message = "Please select one structural element which is listed as follows: \r\n" +
"Columns/braces/Beams/Walls/Wall Foundations/Slabs/Foundation Slabs";
return Autodesk.Revit.UI.Result.Cancelled;
}
Transaction tran = new Transaction(doc.Document, "BoundaryConditions");
tran.Start();
// deal with the selected element
foreach (Element element in elementSet)
{
// the selected element must be a structural element
if (!IsExpectedElement(element))
{
message = "Please select one structural element which is listed as follows: \r\n" +
"Columns/braces/Beams/Walls/Wall Foundations/ \r\n" +
"Slabs/Foundation Slabs";
return Autodesk.Revit.UI.Result.Cancelled;
}
// prepare the relative data
BoundaryConditionsData dataBuffer = new BoundaryConditionsData(element);
// show UI
using (BoundaryConditionsForm displayForm = new BoundaryConditionsForm(dataBuffer))
{
DialogResult result = displayForm.ShowDialog();
if (DialogResult.OK == result)
{
tran.Commit();
return Autodesk.Revit.UI.Result.Succeeded;
}
else if (DialogResult.Retry == result)
{
message = "failed to create BoundaryConditions.";
tran.RollBack();
return Autodesk.Revit.UI.Result.Failed;
}
}
}
tran.RollBack();
// user cancel the operation
return Autodesk.Revit.UI.Result.Cancelled;
}
catch (Exception e)
{
message = e.Message;
return Autodesk.Revit.UI.Result.Failed;
}
}