http://msdn.microsoft.com/en-us/library/system.net.sockets.socket.remoteendpoint.aspx

You can then call the IPEndPoint..::.Address method to retrieve the remote IPAddress, and the IPEndPoint..::.Port method to retrieve the remote port number.

More from the link (fixed up alot heh):

    Socket s;
            
    IPEndPoint remoteIpEndPoint = s.RemoteEndPoint as IPEndPoint;
    IPEndPoint localIpEndPoint = s.LocalEndPoint as IPEndPoint;

    if (remoteIpEndPoint != null)
    {
        // Using the RemoteEndPoint property.
        Console.WriteLine(&quot;I am connected to &quot; + remoteIpEndPoint.Address + &quot; on port number &quot; + remoteIpEndPoint.Port);
    }

    if (localIpEndPoint != null)
    {
        // Using the LocalEndPoint property.
        Console.WriteLine(&quot;My local IpAddress is &quot; + localIpEndPoint.Address + &quot; connected on port number &quot; + localIpEndPoint.Port);
    }


    string ip = ((IPEndPoint)(testsocket.RemoteEndPoint)).Address.ToString();


RemoteEndPoint is a property, its type is [System.Net.EndPoint][1] which inherits from [System.Net.IPEndPoint][2].

If you take a look at IPEndPoint&#39;s [members][3], you&#39;ll see that there&#39;s an `Address` property.


  [1]: http://msdn.microsoft.com/en-us/library/system.net.endpoint.aspx
  [2]: http://msdn.microsoft.com/en-us/library/system.net.ipendpoint.aspx
  [3]: http://msdn.microsoft.com/en-us/library/system.net.ipendpoint_members.aspx

I&#39;ve made this code in VB.NET but you can translate.
Well pretend you have the variable **Client** as a **TcpClient**

    Dim ClientRemoteIP As String = Client.Client.RemoteEndPoint.ToString.Remove(Client.Client.RemoteEndPoint.ToString.IndexOf(&quot;:&quot;))

Hope it helps! Cheers.

I am maintaining a fixed-length table of 10 entries. Each item is a structure of like 4 fields. There will be insert, update and delete operations, specified by numeric position. I am wondering which is the best data structure to use to maintain this table of information:

1. array - insert/delete takes linear time due to shifting; update takes constant time; no space is used for pointers; accessing an item using [] is faster.

2. stl vector - insert/delete takes linear time due to shifting; update takes constant time; no space is used for pointers; accessing an item is slower than an array since it is a call to operator[] and a linked list .

3. stl list - insert and delete takes linear time since you need to iterate to a specific position before applying the insert/delete; additional space is needed for pointers; accessing an item is slower than an array since it is a linked list linear traversal.

Right now, my choice is to use an array. Is it justifiable? Or did I miss something?

Which is faster: traversing a list, then inserting a node or shifting items in an array to produce an empty position then inserting the item in that position?

What is the best way to measure this performance? Can I just display the timestamp before and after the operations?

array vs vector vs list

I just did an `svn merge` to merge changes from the trunk to a branch:

    $ svn merge -r328:HEAD file:///home/user/svn/repos/proj/trunk .
    --- Merging r388 through r500 into &#39;.&#39;:
    A    foo
    A    bar
       C baz1
       C baz2
    U    duh
    [...]

But there were too many conflicts, so I&#39;d like to undo that. 

One way to do that is to commit and then merge back. But I can&#39;t commit because of the conflicts. What&#39;s the best way to undo in that case? 


How to undo a merge (without commit)?

How do I determine the remote IP Address of a connected socket?

I have a RemoteEndPoint object I can access and well as its AddressFamily member.

How do I utilize these to find the ip address?

Thanks!

Currently trying

    IPAddress.Parse( testSocket.Address.Address.ToString() ).ToString();

and getting 1.0.0.127 instead of 127.0.0.1 for localhost end points. Is this normal?

Getting the IP Address of a Remote Socket Endpoint

How do I determine the remote IP Address of a connected socket?
I have a RemoteEndPoint object I can access and well as its AddressFamily member.
How do I utilize these to find the ip address?
Thanks!
Currently trying
<pre><code class="hljs language-scss">IPAddress.Parse( testSocket.Address.Address.ToString() ).ToString();
</code></pre>
and getting 1.0.0.127 instead of 127.0.0.1 for localhost end points. Is this normal?

I have code:

    public delegate int SomeDelegate(int p);

    public static int Inc(int p) {
        return p + 1;
    }

I can cast `Inc` to `SomeDelegate` or `Func&lt;int, int&gt;`:

    SomeDelegate a = Inc;
    Func&lt;int, int&gt; b = Inc;

but I can&#39;t cast `Inc` to `SomeDelegate` and after that cast to `Func&lt;int, int&gt;` with usual way like this:

    Func&lt;int, int&gt; c = (Func&lt;int, int&gt;)a; // Сompilation error

How I can do it?

Cast delegate to Func in C#

I want to get the ip address whoever is registering in my site. How to do this in ASPNET. I used the following code, but, it is not getting the proper IP Address
 

    string ipaddress = Request.UserHostAddress;

How to Get IP Address?

I have a foreach loop reading a list of objects of one type and producing a list of objects of a different type. I was told that a lambda expression can achieve the same result.

    var origList = List&lt;OrigType&gt;(); // assume populated
    var targetList = List&lt;TargetType&gt;(); 
    
    foreach(OrigType a in origList) {
        targetList.Add(new TargetType() {SomeValue = a.SomeValue});
    }

Any help would be appreciated- i&#39;m new to lambda and linq 
thanks,
s

convert a list of objects from one type to another using lambda expression

i have an array of objects (Car[] for example) and there is an IsAvailable Property on the object

i want to use the full array  (where IsAvailable is true for some items and false for some others) as the input and return a new array which includes only the items that have IsAvailable = true.

filter an array in C#

I am trying to get a `TreeView` to bind my collection so that all groups show nested groups and each group will show entry.

How can I use the `HierarchicalDataTemplate` so that the `TreeView` will process both SubGroups and Entries collection?

Groups show subgroups and entries:

    Example:
    Group1
    --Entry
    --Entry
    Group2
    --Group4
    ----Group1
    ------Entry
    ------Entry
    ----Entry
    ----Entry
    --Entry
    --Entry
    Group3
    --Entry
    --Entry

&lt;br&gt;
&lt;h2&gt;Objects:&lt;/h2&gt;
&lt;hr /&gt;

    namespace TaskManager.Domain
    {
        public class Entry
        {
            public int Key { get; set; }
            public string Name { get; set; }
        }
    }

    namespace TaskManager.Domain
    {
        public class Group
        {
            public int Key { get; set; }
            public string Name { get; set; }
    
            public IList&lt;Group&gt; SubGroups { get; set; }
            public IList&lt;Entry&gt; Entries { get; set; }
        }
    }


&lt;h2&gt;Test data:&lt;/h2&gt;
&lt;hr /&gt;

    namespace DrillDownView
    {
        public class TestData
        {

            public IList&lt;Group&gt; Groups = new List&lt;Group&gt;();

            public void Load()
            {
                Group grp1 = new Group() { Key = 1, Name = &quot;Group 1&quot;, SubGroups = new List&lt;Group&gt;(), Entries = new List&lt;Entry&gt;() };
                Group grp2 = new Group() { Key = 2, Name = &quot;Group 2&quot;, SubGroups = new List&lt;Group&gt;(), Entries = new List&lt;Entry&gt;() };
                Group grp3 = new Group() { Key = 3, Name = &quot;Group 3&quot;, SubGroups = new List&lt;Group&gt;(), Entries = new List&lt;Entry&gt;() };
                Group grp4 = new Group() { Key = 4, Name = &quot;Group 4&quot;, SubGroups = new List&lt;Group&gt;(), Entries = new List&lt;Entry&gt;() };

                //grp1
                grp1.Entries.Add(new Entry() { Key=1, Name=&quot;Entry number 1&quot; });
                grp1.Entries.Add(new Entry() { Key=2, Name=&quot;Entry number 2&quot; });
                grp1.Entries.Add(new Entry() { Key=3,Name=&quot;Entry number 3&quot; });

                //grp2
                grp2.Entries.Add(new Entry(){ Key=4, Name = &quot;Entry number 4&quot;});
                grp2.Entries.Add(new Entry(){ Key=5, Name = &quot;Entry number 5&quot;});
                grp2.Entries.Add(new Entry(){ Key=6, Name = &quot;Entry number 6&quot;});

                //grp3
                grp3.Entries.Add(new Entry(){ Key=7, Name = &quot;Entry number 7&quot;});
                grp3.Entries.Add(new Entry(){ Key=8, Name = &quot;Entry number 8&quot;});
                grp3.Entries.Add(new Entry(){ Key=9, Name = &quot;Entry number 9&quot;});

                //grp4
                grp4.Entries.Add(new Entry(){ Key=10, Name = &quot;Entry number 10&quot;});
                grp4.Entries.Add(new Entry(){ Key=11, Name = &quot;Entry number 11&quot;});
                grp4.Entries.Add(new Entry(){ Key=12, Name = &quot;Entry number 12&quot;});

                grp4.SubGroups.Add(grp1);
                grp2.SubGroups.Add(grp4);

                Groups.Add(grp1);
                Groups.Add(grp2);
                Groups.Add(grp3);
            }
        }
    }

&lt;h2&gt;XAML:&lt;/h2&gt;
&lt;hr /&gt;

    &lt;Window x:Class=&quot;DrillDownView.Window2&quot;
            xmlns=&quot;http://schemas.microsoft.com/winfx/2006/xaml/presentation&quot;
            xmlns:x=&quot;http://schemas.microsoft.com/winfx/2006/xaml&quot;
            xmlns:local=&quot;clr-namespace:TaskManager.Domain;assembly=TaskManager.Domain&quot;
            Title=&quot;Window2&quot; Height=&quot;300&quot; Width=&quot;300&quot;&gt;
        &lt;Grid&gt;
            &lt;Grid.RowDefinitions&gt;
                &lt;RowDefinition Height=&quot;Auto&quot; /&gt;
            &lt;/Grid.RowDefinitions&gt;
            &lt;Grid.ColumnDefinitions&gt;
                &lt;ColumnDefinition Width=&quot;Auto&quot; /&gt;
            &lt;/Grid.ColumnDefinitions&gt;
       
            &lt;TreeView Name=&quot;GroupView&quot; Grid.Row=&quot;0&quot; Grid.Column=&quot;0&quot; ItemsSource=&quot;{Binding}&quot;&gt;
                &lt;TreeView.Resources&gt;
                    &lt;HierarchicalDataTemplate DataType=&quot;{x:Type local:Group}&quot; ItemsSource=&quot;{Binding SubGroups}&quot;&gt;
                        &lt;TextBlock Text=&quot;{Binding Path=Name}&quot; /&gt;
                    &lt;/HierarchicalDataTemplate&gt;
                    &lt;HierarchicalDataTemplate DataType=&quot;{x:Type local:Entry}&quot; ItemsSource=&quot;{Binding Entries}&quot;&gt;
                        &lt;TextBlock Text=&quot;{Binding Path=Name}&quot; /&gt;
                    &lt;/HierarchicalDataTemplate&gt;
                &lt;/TreeView.Resources&gt;
            &lt;/TreeView&gt;
        &lt;/Grid&gt;
    &lt;/Window&gt;


&lt;h2&gt;XAML.CS:&lt;/h2&gt;
&lt;hr /&gt;

    public partial class Window2 : Window
    {
        public Window2()
        {
            InitializeComponent();
            LoadView();
        }

        private void LoadView()
        {
            TestData data = new TestData();
            data.Load();
            GroupView.ItemsSource = data.Groups;
        }
    }



WPF TreeView HierarchicalDataTemplate - binding to object with multiple child collections

1. Can we call send from one thread and recv from another on the same socket?
2. Can we call multiple sends parallely from different threads on the same socket?

I know that a good design should avoid this, but I am not clear how these system APIs will behave. I am unable to find a good documentation also for the same.

Any pointers in the direction will be helpful.


Are parallel calls to send/recv on the same socket valid?

**Given this stack trace snippet**

&gt; Caused by: java.net.SocketException:
&gt; Software caused connection abort:
&gt; socket write error &lt;br&gt;&amp;nbsp;at
&gt; java.net.SocketOutputStream.socketWrite0(Native
&gt; Method)

**I tried to answer the following questions:**

 1. What code is throwing this exception? (JVM?/Tomcat?/My code?)
 2. What causes this exception to be thrown?

**Regarding #1:** 

Sun&#39;s JVM source doesn&#39;t contain this exact message, but I think the text *Software caused connection abort: socket write error* is from the native implementation of `SocketOutputStream`:

    private native void socketWrite0(FileDescriptor fd, byte[] b, int off,
				     int len) throws IOException;


**Regarding #2**

My guess is that it is caused when the client has terminated the connection, before getting the full response (e.g. sent a request, but before getting the full response, it got closed / terminated / offline)

**Questions:**

 1. Are the above assumptions correct (#1 and #2)?
 2. Can this be diffrentiated from the situation: &quot;could not write to the client, due to a network error on the *server* side&quot;? or would that render the same error message?
 3. And most important: **Is there an official document (e.g from Sun) stating the above?**

I need to have a proof that this stack trace is the socket client&#39;s &quot;fault&quot;, and there is nothing that the server could have done to avoid it. (except catching the exception, or using a non Sun JVM SocketOutputStream, though both don&#39;t really avoid the fact the client has terminated)


Official reasons for &quot;Software caused connection abort: socket write error&quot;

How can I get the [IPv4][1] address of an interface on Linux from C code?

For example, I&#39;d like to get the IP address (if any) assigned to eth0.

  [1]: http://en.wikipedia.org/wiki/IPv4


Get IP address of an interface on Linux

I am using apache commons http client to call url using post method to post the parameters and it is throwing the below error rarely. 


    java.net.SocketException: Broken pipe
            at java.net.SocketOutputStream.socketWrite0(Native Method)
            at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
            at java.net.SocketOutputStream.write(SocketOutputStream.java:136)
            at java.io.BufferedOutputStream.write(BufferedOutputStream.java:105)
            at java.io.FilterOutputStream.write(FilterOutputStream.java:80)
            at org.apache.commons.httpclient.methods.ByteArrayRequestEntity.writeRequest(ByteArrayRequestEntity.java:90)
            at org.apache.commons.httpclient.methods.EntityEnclosingMethod.writeRequestBody(EntityEnclosingMethod.java:499)
            at org.apache.commons.httpclient.HttpMethodBase.writeRequest(HttpMethodBase.java:2114)
            at org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:1096)
            at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:398)



Can someone suggest what is causing this Exception and how to debug it?

How to fix java.net.SocketException: Broken pipe?

I&#39;m trying to write a server program in C, 
using another client, I get this error when I try to connect through port 2080 for example.

    connection refused

What can be the reasons of this error?

Content Type	Original Author	Original Content on Stackoverflow
Question	bobber205	View Question on Stackoverflow
Solution 1 - C#	Cory Charlton	View Answer on Stackoverflow
Solution 2 - C#	buzzard51	View Answer on Stackoverflow
Solution 3 - C#	Bertrand Marron	View Answer on Stackoverflow
Solution 4 - C#	Marshall	View Answer on Stackoverflow

Getting the IP Address of a Remote Socket Endpoint

C# Problem Overview

C# Solutions

Solution 1 - C#

Solution 2 - C#

Solution 3 - C#

Solution 4 - C#

How to undo a merge (without commit)?

array vs vector vs list

Attributions