How to get the location of the DLL currently executing?
I have a config file that I need to load as part of the execution of a dll I am writing.
The problem I am having is that the place I put the dll and config file is not the "current location" when the app is running.
For example, I put the dll and xml file here:
D:Program FilesMicrosoft Team Foundation Server 2010Application TierWeb ServicesbinPlugins
But if I try to reference the xml file (in my dll) like this:
XDocument doc = XDocument.Load(@".AggregatorItems.xml")
then .AggregatorItems.xml translates to:
C:windowssystem32inetsrvAggregatorItems.xml
So, I need to find a way (I hope) of knowing where the dll that is currently executing is located. Basically I am looking for this:
XDocument doc = XDocument.Load(CoolDLLClass.CurrentDirectory+@"AggregatorItems.xml")
You are looking for System.Reflection.Assembly.GetExecutingAssembly()
string assemblyFolder = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
string xmlFileName = Path.Combine(assemblyFolder,"AggregatorItems.xml");
Edit:
Apparently the Location property does not work correctly under some conditions (testing using NUnit, TFS instantiated DLL, Outlook?) - in that case you can use the CodeBase property.
Reflection is your friend, as has been pointed out. But you need to use the correct method;
Assembly.GetEntryAssembly() //gives you the entrypoint assembly for the process.
Assembly.GetCallingAssembly() // gives you the assembly from which the current method was called.
Assembly.GetExecutingAssembly() // gives you the assembly in which the currently executing code is defined
Assembly.GetAssembly( Type t ) // gives you the assembly in which the specified type is defined.
In my case (dealing with my assemblies loaded [as file] into Outlook):
typeof(OneOfMyTypes).Assembly.CodeBase
Note the use of CodeBase (not Location ) on the Assembly . Others have pointed out alternative methods of locating the assembly.
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