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I want to get all of class in the specific assembly this is my code

 var assembly=Assembly.GetExecutingAssembly();

 var assemblies = assembly.GetTypes().Where(t => String.Equals(t.Namespace, "RepoLib.Rts.Web.Plugins.Profiler.Models", StringComparison.Ordinal)).ToArray();

when c# code all thing is ok and i get my assemblies but when write in t4 file i dont have any error but my assemblies count is.

1 Answers1

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In a T4 template the executing assembly is not yours but one from the T4 engine.

To access types from your assemblies, you have to perform the following steps:

  1. Add a reference to your assembly to the template. Put that at the top of it: 

    <#@ assembly name="$(SolutionDir)<Project>\bin\Debug\<Project>.dll" #>

  2. Import the namespace of your assembly. Put that somewhere below the previous line:

    <#@ import namespace="<Project>.<Namespace>" #>

  3. To access the types in this assembly, pick one of them and get the assembly from it:

    var assembly = typeof(<Type in assembly>).Assembly;
var types = assembly.GetTypes()
                    .Where(t => String.Equals(
                        t.Namespace,
                        "RepoLib.Rts.Web.Plugins.Profiler.Models",
                        StringComparison.Ordinal))
                    .ToArray();
Daniel Hilgarth
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    What is ? –  Feb 16 '13 at 12:06
  • @ShahroozJefri: Any type in the assembly you want to get all types from. For example, it could be one of the types in the `RepoLib.Rts.Web.Plugins.Profiler.Models` namespace – Daniel Hilgarth Feb 16 '13 at 12:12
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    If you're not using preprocessed templates and you want to get information about the types and classes inside the same project as your T4 template resides, I would advise against using Reflection. T4 templates are transformed at design time, so the assembly referenced by $(SoutionDir)\bin\Debug\.dll may be from your last build and outdated! You might want to use the Visual Studio Code Model (see here: http://stackoverflow.com/questions/14134016/design-time-reflection/14402269#14402269) – Nico Feb 16 '13 at 14:26
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    How can you do this without type of? – johnny 5 Mar 25 '17 at 06:28