void DoBack(IApplicationContext ctx)
{
_history.Pop(); //remove current
if (_history.Count > 0)
{
Step step = _history.Pop();
InvokeCallback(ctx, WORKFLOW_BACK_EVENT
, _currentStep != null ? _currentStep.Name : "null"
, step != null ? step.Name : "null");
OpenScreen(ctx, step, step.Parameters, true);
}
else
{
InvokeCallback(ctx, WORKFLOW_FINISH_EVENT, WORKFLOW_ROLLBACK_REASON);
BusinessProcess.TerminateWorkflow(ctx, this, true);
}
}
public void InvokeAction(IApplicationContext ctx
, String name
, Dictionary <String, object> parameters
, bool isBackCommand = false)
{
try
{
if (_currentStep != null)
{
_currentStep.SaveControlsState(ctx.ValueStack.Persistables);
}
if (this._currentStep.Actions.ContainsKey(name))
{
Action a = this._currentStep.Actions[name];
if (!String.IsNullOrEmpty(a.NextStep))
{
DoForward(ctx, this._steps[a.NextStep], parameters, isBackCommand);
return;
}
if (!String.IsNullOrEmpty(a.NextWorkflow))
{
InvokeCallback(ctx, WORKFLOW_PAUSE_EVENT);
BusinessProcess.Start(ctx, a.NextWorkflow);
return;
}
BusinessProcess.TerminateWorkflow(ctx, this, false);
return;
}
if (_globalActions.Contains(name))
{
switch (name)
{
case "Back":
DoBack(ctx);
break;
case "BackTo":
DoBack(ctx, parameters["step"].ToString());
break;
case "Commit":
DoCommit(ctx);
break;
case "Rollback":
DoRollback(ctx);
break;
}
return;
}
ActionHandlerEx.Busy = false;
ActionHandler.Busy = false;
}
catch (Exception e)
{
ctx.ValueStack.ExceptionHandler.Handle(e);
}
}
void DoRollback(IApplicationContext ctx)
{
InvokeCallback(ctx, WORKFLOW_FINISH_EVENT, WORKFLOW_ROLLBACK_REASON);
ClearState();
BusinessProcess.TerminateWorkflow(ctx, this, true);
}
void DoCommit(IApplicationContext ctx)
{
InvokeCallback(ctx, WORKFLOW_FINISH_EVENT, WORKFLOW_COMMIT_REASON);
ClearState();
BusinessProcess.TerminateWorkflow(ctx, this, false);
}