Here is how you get the execution path of the application:

    var path = System.IO.Path.GetDirectoryName( 
          System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase);

MSDN has a full reference on [how to determine the Executing Application&#39;s Path](http://msdn.microsoft.com/en-us/library/aa457089.aspx).

Note that the value in `path` will be in the form of `file:\c:\path\to\bin\folder`, so before using the path you may need to strip the `file:\` off the front. E.g.:

    path = path.Substring(6);


You could do this

        Assembly asm = Assembly.GetExecutingAssembly();
        string path = System.IO.Path.GetDirectoryName(asm.Location);

This is what I used to accomplish to this:

    System.IO.Path.Combine(System.AppDomain.CurrentDomain.BaseDirectory, System.AppDomain.CurrentDomain.RelativeSearchPath ?? &quot;&quot;);

    var assemblyPath = Assembly.GetExecutingAssembly().CodeBase;


    Path.GetDirectoryName(Application.ExecutablePath)
eg. value:

    C:\Projects\ConsoleApplication1\bin\Debug

    var path = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase)?.Replace(&quot;file:\\&quot;, &quot;&quot;);

`Application.StartupPath`  


This is how you can access the bin / debug path

What is the difference between a Category and a Class Extension. I believe both are used to add custom methods in existing classes. Can someone throw light on this? Examplification with code will be really appreciated.

Difference between Category and Class Extension?

I am using the Android plugin for Eclipse, and when I try to run my program using a real device through the *Android Device Chooser*, my phone is not listed as a device. I have updated Eclipse, all of the Android packages, and the USB driver, but it still isn&#39;t showing up. My phone is running Android 2.1, which is also the target version listed in the Eclipse project.

Also it happens that the device shows up as an unknown target and the serial number as question marks as shown in the screenshot.

![Android Device Chooser][1]


  [1]: http://i.stack.imgur.com/9Zl6F.jpg

Why is Eclipse&#39;s Android Device Chooser not showing my Android device?

I need to the the bin path of the executing assembly.
How do you get it?
I have a folder Plugins in the Bin/Debug  and I need to get the location

How do I get Bin Path?

<p>I need to the the bin path of the executing assembly.
How do you get it?
I have a folder Plugins in the Bin/Debug  and I need to get the location</p>


In Java, the [`throws`][1] keyword allows for a method to declare that it will not handle an exception on its own, but rather throw it to the calling method.

Is there a similar keyword/attribute in C#?

If there is no equivalent, how can you accomplish the same (or a similar) effect?


  [1]: http://download.oracle.com/javase/tutorial/essential/exceptions/declaring.html

How to use Java-style throws keyword in C#?

I have a custom attribute:

    public class MenuItemAttribute : Attribute
    {
    }

and a class with a few methods:

    public class HelloWorld
    {
        [MenuItemAttribute]
        public void Shout()
        {
        }

        [MenuItemAttribute]
        public void Cry()
        {
        }

        public void RunLikeHell()
        {
        }
    }

How can I get only the methods that are decorated with the custom attribute?

So far, I have this:

    string assemblyName = fileInfo.FullName;
    byte[] assemblyBytes = File.ReadAllBytes(assemblyName);
    Assembly assembly = Assembly.Load(assemblyBytes);

    foreach (Type type in assembly.GetTypes())
    {
         System.Attribute[] attributes = System.Attribute.GetCustomAttributes(type);

         foreach (Attribute attribute in attributes)
         {
             if (attribute is MenuItemAttribute)
             {
                 //Get me the method info
                 //MethodInfo[] methods = attribute.GetType().GetMethods();
             }
         }
    }


What I need now is to get the method name, the return type, as well as the parameters it accepts.


Find methods that have custom attribute using reflection

In C#, say that you want to pull a value off of PropertyC in this example and ObjectA, PropertyA and PropertyB can all be null.

ObjectA.PropertyA.PropertyB.PropertyC

How can I get PropertyC safely with the least amount of code?

Right now I would check:

    if(ObjectA != null &amp;&amp; ObjectA.PropertyA !=null &amp;&amp; ObjectA.PropertyA.PropertyB != null)
    {
        // safely pull off the value
        int value = objectA.PropertyA.PropertyB.PropertyC;
    }

It would be nice to do something more like this (pseudo-code).

    int value = ObjectA.PropertyA.PropertyB ? ObjectA.PropertyA.PropertyB : defaultVal;

Possibly even further collapsed with a null-coalescing operator.

**EDIT** Originally I said my second example was like js, but I changed it to psuedo-code since it was correctly pointed out that it would not work in js.

C# elegant way to check if a property&#39;s property is null

I have a Window which pop-ups another Window. I want the second Window to be able to return an object to the first Window when a button is pressed. How would I do this?

Return an object from a popup window

I am using a COM object (MODI) from within my .net application.  The method I am calling throws a `System.AccessViolationException`, which is intercepted by Visual Studio.  The odd thing is that I have wrapped my call in a try catch, which has handlers for `AccessViolationException`, `COMException` and everything else, but when Visual Studio (2010) intercepts the `AccessViolationException`, the debugger breaks on the method call (doc.OCR), and if I step through, it continues to the next line instead of entering the catch block. Additionally,  if I run this outside of the visual studio my application crashes. How can I handle this exception that is thrown within the COM object?

    MODI.Document doc = new MODI.Document();
    try
    {
        doc.Create(sFileName);
        try
        {
            doc.OCR(MODI.MiLANGUAGES.miLANG_ENGLISH, false, false);
            sText = doc.Images[0].Layout.Text;
        }
        catch (System.AccessViolationException ex)
        {
            //MODI seems to get access violations for some reason, but is still able to return the OCR text.
            sText = doc.Images[0].Layout.Text;
        }
        catch (System.Runtime.InteropServices.COMException ex)
        {
            //if no text exists, the engine throws an exception.
            sText = &quot;&quot;;
        }
        catch
        {
            sText = &quot;&quot;;
        }
    
        if (sText != null)
        {
            sText = sText.Trim();
        }
    }
    finally
    {
        doc.Close(false);
    
        //Cleanup routine, this is how we are able to delete files used by MODI.
        System.Runtime.InteropServices.Marshal.FinalReleaseComObject(doc);
        doc = null;
        GC.WaitForPendingFinalizers();
        GC.Collect();
        GC.WaitForPendingFinalizers();
    
    }

How to handle AccessViolationException

I have a property on a class that is an ISet.  I&#39;m trying to get the results of a linq query into that property, but can&#39;t figure out how to do so.

Basically, looking for the last part of this:

    ISet&lt;T&gt; foo = new HashedSet&lt;T&gt;();
    foo = (from x in bar.Items select x).SOMETHING;

Could also do this:

    HashSet&lt;T&gt; foo = new HashSet&lt;T&gt;();
    foo = (from x in bar.Items select x).SOMETHING;

How to convert linq results to HashSet or HashedSet

I&#39;ve started using `StringBuilder` in preference to straight concatenation, but it seems like it&#39;s missing a crucial method. So, I implemented it myself, as an extension:

    public void Append(this StringBuilder stringBuilder, params string[] args)
    {
        foreach (string arg in args)
            stringBuilder.Append(arg);
    }

This turns the following mess:

    StringBuilder sb = new StringBuilder();
    ...
    sb.Append(SettingNode);
    sb.Append(KeyAttribute);
    sb.Append(setting.Name);

Into this:

    sb.Append(SettingNode, KeyAttribute, setting.Name);

I could use `sb.AppendFormat(&quot;{0}{1}{2}&quot;,...`, but this seems even less preferred, and still harder to read. Is my extension a good method, or does it somehow undermine the benefits of `StringBuilder`? I&#39;m not trying to prematurely optimize anything, as my method is more about readability than speed, but I&#39;d also like to know I&#39;m not shooting myself in the foot.

Am I undermining the efficiency of StringBuilder?

I have the following anonymous type:

    new {data1 = &quot;test1&quot;, data2 = &quot;sam&quot;, data3 = &quot;bob&quot;}

I need a method that will take this in, and output key value pairs in an array or dictionary. 

My goal is to use this as post data in an HttpRequest so i will eventually concatenate in into the following string:

    &quot;data1=test1&amp;data2=sam&amp;data3=bob&quot;




In c# convert anonymous type into key/value array?

I&#39;m having a devil of a time finding a comparison of the different ways to query for a single item, and when to use each.

Does anyone have a link that compares all these, or a quick explanation as to why you would use one over the other?  Are there still more operators that I am unaware of?

Thank you.

Content Type	Original Author	Original Content on Stackoverflow
Question	user9969	View Question on Stackoverflow
Solution 1 - C#	kemiller2002	View Answer on Stackoverflow
Solution 2 - C#	etoisarobot	View Answer on Stackoverflow
Solution 3 - C#	Thorgeir	View Answer on Stackoverflow
Solution 4 - C#	James Curran	View Answer on Stackoverflow
Solution 5 - C#	Wojtek Turowicz	View Answer on Stackoverflow
Solution 6 - C#	StealthKK	View Answer on Stackoverflow
Solution 7 - C#	rasityilmaz	View Answer on Stackoverflow

How do I get Bin Path?

C# Problem Overview

C# Solutions

Solution 1 - C#

Solution 2 - C#

Solution 3 - C#

Solution 4 - C#

Solution 5 - C#

Solution 6 - C#

Solution 7 - C#

Why is Eclipse's Android Device Chooser not showing my Android device?

Difference between Category and Class Extension?

Attributions