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.NET Forum / Visual Studio.NET / IDE / November 2005EnvDTE.CodeElement.get_EndPoint throws Argument exception
I have an Addin written VB which prints the source code in a .NET project. The addin formats the source code using SmartFormat before printing the source code. Here is a code in the addin that formats the source code: dim ce as CodeElement dim td as textDocument dim pi as ProjectItem ' Determine project Item under the cursor td = applicationObject.ActiveDocument.Object ce = td.Selection.ActivePoint.CodeElement(vsCMElement.vsCMElementClass) pi = ce.ProjectItem ' Format the project item td = DirectCast(pi.Document.Object, TextDocument) td.StartPoint.CreateEditPoint.SmartFormat(td.EndPoint.CreateEditPoint) For Each ce In ProjItem.FileCodeModel.CodeElements Debug.WriteLine( ce.EndPoint.Line ) ' ce.EndPoint.Line fails here Next Line debug line in the For .. Next above fails with Argument exception: 'The parameter is incorrect' at ENVDTE.CodeElement.get_EndPoint() The error only occurs if I set option 'Leave open braces on the same line a constrcut' from the Options -> Text Editor -> C# -> Formatting tab in the IDE How can I avoid the error? A test Addin that demonstrates the error can be downloaded using the following link: http://www.starprint2000.com/downloads/beta/getendpointtest.zip Regards, Joginder Nahil www.starprint2000.com If I check the option 'Leave open braces on the same line as construct' on the C# Formatting options in the IDE then the an Does the problem happen removing the smart formatting, that is, with a C# code already formatted? That is, can we remove the smart formatting from your code to better diagnose the problem?  SignatureBest regards, Carlos J. Quintero MZ-Tools: Productivity add-ins for Visual Studio .NET, VB6, VB5 and VBA You can code, design and document much faster. Free resources for add-in developers: http://www.mztools.com >I have an Addin written VB which prints the source code in a .NET project. > The addin formats the source code using SmartFormat before printing the [quoted text clipped - 41 lines] > If I check the option 'Leave open braces on the same line as construct' on > the C# Formatting options in the IDE then the an Hi Carlos, Thanks for finding the time to respond. Nice to hear from you. The released version of the addin VSNETcodePrint allows the user to format the source code before printing it so that the connecting lines for the language constructs are drawn correctly. (You can see the output samples on my website www.starprint2000.com). For this reason, the addin starts an Undo, format and prints the source code and then aborts the Undo to ensure that the source code is left in its origional state. The error occurs if user sets option 'Leave open braces on the same line a constrcut' from the Options -> Text Editor -> C# -> Formatting tab in the IDE AND The Undo context is started AND The source code is formatted If you remove smart formatting then the problem does not occur. But I do need to format the source code as I have stated in my opening paragraph above. Regards, Joginder Nahil www.starprint2000.com > Does the problem happen removing the smart formatting, that is, with a C# > code already formatted? That is, can we remove the smart formatting from [quoted text clipped - 45 lines] > > If I check the option 'Leave open braces on the same line as construct' on > > the C# Formatting options in the IDE then the an Hi Joginder, Yes, but we are trying to determine if the problem is: 1) The output of the format (whenever it happens, your add-in before printing, or the user some days ago). I know that if you remove the formatting process the problem disappears, but you are removing 2 variable here: the process of formatting and the output of the formatting. You need to remove only 1 variable of the problem. So, if the user (not your add-in) formats the code with the option "'Leave open braces on the same line a construct" and some time later your add-in prints (without reformatting), does the problem happen? If yes, it would denote the the code model has a bug retrieving edit points from code elements formatted in a certain way. The solution would be some manual parsing or using the alternative method CodeElement.GetEndPoint(part), playing with different parts, instead of CodeElement.EndPoint. 2) The timing of the formatting process, which does not refresh the code model after performing it. VS 2005 provides a new FileCodeModel2 with methods Synchronize and a property ParseStatus. But first you need to determine the exact problem. I hope that I explained it well. SignatureBest regards, Carlos J. Quintero MZ-Tools: Productivity add-ins for Visual Studio .NET, VB6, VB5 and VBA You can code, design and document much faster. Free resources for add-in developers: http://www.mztools.com > Hi Carlos, > [quoted text clipped - 26 lines] > Joginder Nahil > www.starprint2000.com Hi Carlos, Good point. I can now conform that: Please note that when I open the C# project, the source code in the projectitem has { at the start of a line rather than at the end of each statement. If I format the source code in the IDE using Edit>Advanced>Format Selection, the size of the ProjectItem ource code reduces from 590 lines to 560 lines because { is placed at the end of each statement rather than at the beginning of new line. When I run the Addin CodeElement.Endpoint does not raise an exception. If I format the same source code in the Addin using SmartFormat method then CodeElement.Endpoint doesn not raise the exception If I format the same source code in the Addin using SmartFormat method AND the SmalFormat is performed after opening UNDO context then CodeElement.Endpoint doesn raise the exception. This suggests, as you suspected, code model has a bug retrieving edit points when Foramt the source code after opening UNDO. I have now raised this as a bug which is being investigated by Microsoft. I will let you know what they say. I appreciate you finding the time which I am sure you rather spend on MZTools. BTW I am a registered user of your wonderful MZTools Addin and find it very useful. Thank you. > Hi Joginder, > [quoted text clipped - 50 lines] > > Joginder Nahil > > www.starprint2000.com Hi Joginder , I am glad that you are on the track to solve the problem. I find somewhat strange that your add-in prints the source code with a different format than the used by the user in the actual file, but if this is really needed and the undo is causing problems, another approach is to close the file after formatting without saving changes and open it again. This is what the "Reload Active Document from Disk" feature of my add-in does, if you have used it (I am glad that you like my add-in). Be also aware that the smart formatting feature of VS.NET stops working "by design" (for performance reasons) when the paragraph has 8,000 lines. You may want to test it around that frontier, warn the user about it, or document it in your help file. SignatureBest regards, Carlos J. Quintero MZ-Tools: Productivity add-ins for Visual Studio .NET, VB6, VB5 and VBA You can code, design and document much faster. Free resources for add-in developers: http://www.mztools.com > Hi Carlos, > [quoted text clipped - 34 lines] > > Thank you. 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