I've found the solution.
I've made EventHandler class:
public class NVelocityEventHandler : IInvalidReferenceEventHandler, IMethodExceptionEventHandler
{
#region IInvalidReferenceEventHandler Members
public object InvalidGetMethod(NVelocity.Context.IContext context, string reference, object object_Renamed, string property, NVelocity.Util.Introspection.Info info)
{
return "InvalidGetMethod:" + reference;
}
public object InvalidMethod(NVelocity.Context.IContext context, string reference, object object_Renamed, string method, NVelocity.Util.Introspection.Info info)
{
return "InvalidMethod:" + reference;
}
public bool InvalidSetMethod(NVelocity.Context.IContext context, string leftreference, string rightreference, NVelocity.Util.Introspection.Info info)
{
return true;
}
#endregion
#region IMethodExceptionEventHandler Members
object IMethodExceptionEventHandler.MethodException(Type claz, string method, Exception e)
{
return "MethodException:" + method;
}
#endregion
}
Then I use it in the code below:
StringWriter writer = new StringWriter();
NVelocity.App.VelocityEngine eng = new NVelocity.App.VelocityEngine();
try
{
NVelocityEventHandler te = new NVelocityEventHandler();
EventCartridge ec = new EventCartridge();
ec.AddEventHandler(te);
VelocityContext vc = new VelocityContext((IDictionary)parameters);
ec.AttachToContext(vc);
eng.Evaluate(vc, writer, "templatestring", template);
}
catch (ParseErrorException pe)
{
return pe.Message;
}
catch (MethodInvocationException mi)
{
return mi.Message;
}