When I go to run the t4 templates, the result comes out "Compiling transformation: The name 'TableSpaceName' does not exist in the current context" -- any ideas on this? I thought it might be a namespace/reference issue, but it doesn't seem to be part of the ODP.
This is one of those "it has to be something stupid" ... why? I've got subsonic 2 to work with oracle on the same box, using the same server, same connection string so it has to be something I'm overlooking or not expecting.
I have downloaded the oracle template provider example and I've hit github for the latest and greatest, trying various combinations of both with the results being the same.
In your T4 template, check if you have imported the assembly that includes the missing 'TableSpaceName':
<## assembly name="[ABSOLUTE-PATH-TO-ASSEMBLY]\[ASSEMLBYNAME]" #>
Related
I have successfully installed DNN 8 and all configuration.
i am also referring video to develop module in visual studio.
https://www.youtube.com/watch?v=AKCYRPuoXF4
when i am trying to build the project then
error comes like:
Error 17 The type or namespace name 'DotNetNuke' could not be found
(are you missing a using directive or an assembly
reference?) C:\websites\dnndev.me\DesktopModules\MyDNNModule\MyDNNModuleModuleSettingsBase.cs 13 7 MyDNNModule
Please help to solve that.
thank you in advance.
Working with DNN8, sometimes I get a set of errors with message
The type or namespace name 'DotNetNuke' could not be found (are you
missing a using directive or an assembly reference?)
, probably 10 or 15 of them, and all located on top of one ascx file. (My dotnetnuke.dll is correctly placed in DNN's bin folder). Taking a better look (scroll down!), I can see that - except them - there are some more error messages (maybe just one of them), and that those additional errors are perfectly clear and logical. So I correct my source code in order to avoid those additional messages, and when I do that - those problematic messages also disappear!
In my case it took me a while to find the solution to this problem, since it only got triggered when I made a change to the View.ascx file.
You need the Visual Studio project to target framework to 4.5 instead of 4.5.1.
I got this solution from here.
Make sure to add a Reference to dotnetnuke.dll in the c:\websites\dnndev.me\bin folder
I honestly haven't done anything with DNN 8 CTP yet, I would stick with 7.4.1 until 8 is official released.
I am trying to write a console program that takes the file name of a T4 template as a parameter, and then processes the template. This because I want users to be able to update the template without having to recompile the program.
The simplest solution I found was to create a second template within Visual Studio that precompiles to a C# class, which in turn executes my external template "Template.tt":
<## template language="C#" hostspecific="True" #>
<## import namespace="System.IO" #>
<## import namespace="Microsoft.VisualStudio.TextTemplating" #>
<#
string template = File.ReadAllText(Host.ResolvePath("Template.tt"));
Engine engine = new Engine();
string output = engine.ProcessTemplate(template, Host);
Write(output);
#>
Within the Program.cs of my console program, I then execute this "calling" template:
string templateText = new Caller().TransformText();
Problem is that when I run this (F5), it throws a NullReferenceException on the first line in my caller template, because Host is null.
However, I thought that setting hostspecific to True would give me a Host.
What do I need to do to get a Host? Don't really want to roll my own.
Alternatively, is there a better way to execute an external T4 template?
According to the MSDN documentation the hostspecific attribute only provides access to the Host-Property inside the t4 template. It does not guarantee the presence of a host. For design-time templates (that are transformed in visual studio) Visual Studio and it's T4 engine provides this host. Unfortunately the Microsoft.VisualStudio.TextTemplating.dll is not a redistributable assembly. So you won't have that host in a run-time scenario.
As you stated, you would need to write a complete T4 engine and host yourself...
If your users need to write/alter the t4 templates, they have knowledge about programming and writing text templating. Could you think of a way to make them use visual studio in any way?
Alternatively (if the changes those user make are small) you could try to use a precompiled template that works on some other input (xml-file, ini-file, command-line-parameters, ...).
Sorry for not having better news...
The actual custom (command line app based) T4 host is not too difficult to implement, I don't recall off my head where I got the code but here are the links of our T4 modular console-app runner:
https://github.com/abstractiondev/absbuilder
The actual command line host is here:
https://github.com/abstractiondev/absbuilder/blob/master/AbstractionBuilder/CustomCmdLineHost.cs
For referencing the T4 parts, we've ran the tooling with Mono runtime / MonoDevelop environments in Linux, now based on the tests (thats 1-2 years ago), I recall that MonoDevelop's T4 was completely compatible and available as source code with some very sensible licensing (MIT or Apache 2.0 if I recall properly).
I've been struggling with
Compiling transformation: An assembly with the same identity 'xxxx' has already been imported. Try removing one of the duplicate references.
When using T4 to generate some code at design time - with a couple of different reusable templates saved as .ttinclude files, and shared in a number of different "parent" templates.
I toggle between this, and the alternative when I remove one of the references (in my own ttinclude file) which is :
Compiling transformation: The type or namespace name 'yyy' could not be found (are you missing a using directive or an assembly reference?)
Going round in circles, any ideas?
Well, found a dirty workaround.
Would love a better solution / approach, if someone has some advice?
Posting my process as might be helpful to someone else.
Used the template directive to put my templates and include
templates into debug mode e.g.
<## template language="C#" debug="true" hostspecific="true"#>
Popped open %TEMP% to look at the generated file(s) (most recently
modified) just after getting the compiling transformation error.
Searched for the missing / doubled up assembly / class(es) used.
Found which "included" templates both had same reference e.g.
<## include file="MyHelperTemplate.ttinclude" #>
and :
<## include file="EF.Utility.CS.ttinclude" #>
Opened the include folder for the non custom include that was
causing the conflict with my own
..\Common7\IDE\Extensions\Microsoft\Entity Framework Tools\Templates\Includes
Opened this file up, removed its troublesome import
<## import namespace="EnvDTE" #>
Saved it with a new name in same folder and updated references to point to this new version e.g.
<## include file="EF.Utility.CS.Custom.ttinclude" #>
Put required imports into the "parent" templates, and removed from
the "include" template. In my case this was:
<## import namespace="EnvDTE" #>
Now it runs fine, no problems at all, no duplicated imports, and all required assemblies referenced correctly.
Am sure there is a much more sophisticated way of dealing with T4 code reuse which negates this problem entirely. I initially tried importing my own custom assembly, with helpers for the templates, but had what seems like a classic problem with locked dlls when I then tried to build my custom class library.
Seems T4 Toolbox has a solution to this with the VolatileAssembly Custom Directive, and is popular, but looks a bit overkill for my fairly simple needs. Maybe when I have more time.
I'm currently dealing with a part-time (and annoying) bug with some extension methods in VB .NET (VS 2010 and VS 2008).
I have some client projects that use some extension methods from a "Framework" Project I created for general purpose.
However, sometime, when a try to start the solution, I get a long list of error saying the extension method "is not a member of" target object.
When this happen, I can rebuild the solution without getting any error but if I start the project again, the same error will be raised again.
So far I have 2 workaround
A) Go on the extension method definition, delete the tag, compile (with error), put the tag back.
B) Close Visual Studio et re-open it.
Is there any betterway to handle this problem?
There is an active bug report for this problem at Connect. There's a dire need for a repro, a project with specific steps to let them reproduce the issue in-house. Perhaps you can help, it's what it will take to solve it or recommend a workaround.
EDIT: one late addition to this answer, since I've posted this there have been additional questions that note a problem with the IntelliSense parser behaving different from the compiler. There's an issue with the multi-targeting feature, particularly in VS2010, triggered by the Client Profile option for .NET 4. It is the default for a new project. What goes wrong is adding an assembly reference that requires the full profile, commonly because of a dependency on System.Web. You'll get a warning for that, but that's quickly blown away with a large number of errors. The fix is to change the project's Framework Target from client to full.
I've recently encountered this same issue. My project would Build just fine but if I tried to use the Rebuilt option I would get the error about my extension methods not being found on the objects they were extending.
I have managed to fix this today by including an Import at the top of the classes using the Extension method.
So at the top of the file I actually have
Imports project_name.extension_module
I have no idea why this is required but it fixes the problem in my case. I hope this helps somebody else that has wasted as much time with this as I have!
Liam
A less time consuming work around than the two you listed is to "Rebuild Solution" instead of the normal Build Solution. This has always worked for me whenever I run into this problem.
We have something very similar. Call extensions merhod that extends type A. type is actually an instance of type B that implements interface C. interface C has a method with the same name as extension method.
Interface C declares method Foo
Class B inherits from A implements C
Static Class
Static method Foo (this A)
If A is C
(A as C).Foo
When debugging on the line if A is C it actually calls Foo multiple times and you can step at assembly level and see it indicates it is doing the comparison. The way we demonstrate that the call is happen Foo executes a sql statement and we can see sql profiler executing the code in Foo.
Change A as C to reflection and bug goes away. Or use debugger hidden/step through and bug is masked. Also if you micro-step the sql profiler shows the query is getting called multiple times (before Foo is actually called) for each assembly statement.
Last year I wrote a Language Service for Visual Studio which added syntax highlighting for NHaml files: http://github.com/snappycode/hamleditor.
To clarify, NHaml is a html template language that can mix in code elements like an aspx file can. This plugin adds support to the IDE for editing NHaml files, but basically only adds syntax highlighting.
I was wondering if anyone knows how to add inline c# intellisense to the service like you get now in an aspx file. I'm hoping that would be possible without doing the whole c# grammar myself specific for the plugin.
Has anyone written a language service that mixes languages?
UPDATE:
It looks like the spark view engine guys have made some inroads here, I am investigating their implementation
I checked the Spark View Engine, and they seem to have made a generic ATL stuff (called SparkLanguagePackageLib), that in fact seems to be not containiag anything Spark specific. It seems to be just a generic C# intellisense library that needs the following:
The original code
The C# source that gets generated from the original code
The position mappings between the two (for example the code on line 2 pos 5 gets mapped in the output to line 4 pos 10, etc.)
Some other things, like Paintings(?)
And after that you can call:
events.OnGenerated(
primaryText, // original source code
entry.SourceCode, // generated sourcecode
cMappings, // mappings between the two
ref mappings[0], // ?
cPaints, // ?
ref paints[0]); // ?
I've tried to find Spark-specific stuff in that C++ library, but I couldn't find anything: everythig spark-related is split to a separate C# code file. I think this is good, because:
You don't need to edit the C++ files
If the spark view engine's intellisense support is installed it can be used by other view engines too
You only need to create a class, that maps between the original nhaml file and it's generated C# counterpart.
Btw. Are you still working on this NHaml Intellisense library? If not I'll try to patch their implementation in hope it can be converted to NHaml easily.
this looks like it might help
http://www.codeproject.com/KB/recipes/VSLanguageService.aspx
I finally managed to modify the code to support NHaml. It wasn't that hard at all. Unfortunately the original NHaml library doesn't support everything that was needed, so I had to create a new parser for NHaml. It doesn't support all of the constructs, but it supports most of them (enough to make NHaml programming easier)
Download: http://github.com/sztupy/nhamlsense
Screencast: http://www.youtube.com/watch?v=8jTZ2zC9eYc
You can easily add keywords by creating or modifying a usertype.dat file. Check here for some directions on attaching to specific file extentions. That might get you at least part of the way, without redoing the complete c# syntax.
(In fact, I'm not sure what you mean exactly by 'syntax highlighting' in this context. I'm sure, for instance, you get brace-match highlighting for free in the editor).