If you don&#39;t need *selecting text* as a requirement, just use System.Windows.Forms.MessageBox. It maps to the system-default one which already allows copying its contents with &lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;C&lt;/kbd&gt;.

You can just use &lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;C&lt;/kbd&gt; while the message box has focus, but it will give you a lot more text than just the error message.

e.g.

        MessageBox.Show(&quot;Message&quot;, &quot;Message Title&quot;, MessageBoxButton.OK);

Would copy and paste as:

        ---------------------------
        Message Title 
        ---------------------------
        Message
        ---------------------------
        OK   
        ---------------------------


I did it this way: 
-------------------------

    string msgtext = &quot;message text&quot;;
    if (MessageBox.Show(msgtext, &quot;bla bla bla. (OK to copy)&quot;, MessageBoxButtons.OKCancel) == System.Windows.Forms.DialogResult.OK)
      { Clipboard.SetText(msgtext); }

-------------------------
It works pretty good.



If you&#39;re displaying the messagebox... 

    System.Windows.Forms.Clipboard.SetDataObject(messageToShowInMsgBoxString, true);

will copy the item to the clipboard.

The best approach would be to use a Window with a selectable text control, like a textbox for example.  I can say from experience that this is the easiest way, and will not take much time or code changes to implement.

Is it possible to track hash links like pages with google analytics?

For example, I want index.php/#1, index.php/#2, and index.php/#3 to all show up as individual page hits with individual time spent on page. 

If there is no simple way of doing this, how can I add a track event to an onclick event with jquery? Can I still receive accurate time on &quot;page&quot; information this way?

Is it possible to track hash links like pages with google analytics?

So in a `BufferedImage`, you receive a single integer that has the RGB values represented in it. So far I use the following to get the RGB values from it:

    // rgbs is an array of integers, every single integer represents the
    // RGB values combined in some way
    int r = (int) ((Math.pow(256,3) + rgbs[k]) / 65536);
    int g = (int) (((Math.pow(256,3) + rgbs[k]) / 256 ) % 256 );
    int b = (int) ((Math.pow(256,3) + rgbs[k]) % 256);

And so far, it works.

What I need to do is **figure out how to get an integer** so I can use `BufferedImage.setRGB()`, because that takes the same type of data it gave me.

Convert RGB values to Integer

How can I allow selecting and copying of text from MessageBox in WPF?

How to allow copying message on MessageBox

<p>How can I allow selecting and copying of text from MessageBox in WPF?</p>


I&#39;m not sure why i&#39;m getting this error to be honest.

    private int hour
    {
        get;
        set
        {
            //make sure hour is positive
            if (value &lt; MIN_HOUR)
            {
                hour = 0;
                MessageBox.Show(&quot;Hour value &quot; + value.ToString() + &quot; cannot be negative. Reset to &quot; + MIN_HOUR.ToString(),
                        &quot;Invalid Hour&quot;, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
            }
            else
            {
                //take the modulus to ensure always less than 24 hours
                //works even if the value is already within range, or value equal to 24
                hour = value % MAX_HOUR;
            }
        }
    }

I&#39;ve also tried just doing an actual property:

    public int hour 
    { 
        get; 
        set
        {
            //make sure hour is positive
            if (value &lt; MIN_HOUR)
            {
                hour = 0;
                MessageBox.Show(&quot;Hour value &quot; + value.ToString() + &quot; cannot be negative. Reset to &quot; + MIN_HOUR.ToString(),
                        &quot;Invalid Hour&quot;, MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
            }
            else
            {
                //take the modulus to ensure always less than 24 hours
                //works even if the value is already within range, or value equal to 24
                hour = value % MAX_HOUR;
            }
        } 
    }


Suggestions?

C# &quot;must declare a body because it is not marked abstract, extern, or partial&quot;

Here is what my solution is looking like at the moment:

![enter image description here][1]

In the Tutomentor.Branding project, I&#39;d like to save branding information in the App.config file, like names, colors, etc.

In the Tutomentor.Data project, the App.config was created when I added an entity .edmx model file.

Is this possible? Any recommendations?

When deploying, will the output COMBINE these App.config files into a single one?

  [1]: http://i.stack.imgur.com/9OpOZ.jpg

Can a class library have an App.config file?

`List` declaration from MSDN:

    public class List&lt;T&gt; : IList&lt;T&gt;, ICollection&lt;T&gt;, 
     IEnumerable&lt;T&gt;, IList, ICollection, IEnumerable

Reflector gives similar picture. Does `List` really implement all of these (if yes why)?
I have checked:

        interface I1 {}
        interface I2 : I1 {}
        interface I3 : I2 {}

        class A : I3 {}
        class B : I3, I2, I1 {}

        static void Main(string[] args)
        {
            var a = new A();
            var a1 = (I1)a;
            var a2 = (I2)a;
            var a3 = (I3)a;

            var b = new B();
            var b1 = (I1) b;
            var b2 = (I2)b;
            var b3 = (I3)b;
        }
it compiles.

[UPDATED]:

Guys, as i understand, all the replies stay that it:


    class Program
    {

        interface I1 {}
        interface I2 : I1 {}
        interface I3 : I2 {}

        class A : I3 {}
        class B : I3, I2, I1 {}

        static void I1M(I1 i1) {}
        static void I2M(I2 i2) {}
        static void I3M(I3 i3) {}

        static void Main(string[] args)
        {
            var a = new A();
            I1M(a);
            I2M(a);
            I3M(a);

            var b = new B();
            I1M(b);
            I2M(b);
            I3M(b);

            Console.ReadLine();
        }
    }

would give error, but it compiles and runs without any errors. Why?

Why does (does it really?) List&lt;T&gt; implement all these interfaces, not just IList&lt;T&gt;?

The following code will allow me to update the Email where FirstName = &quot;john&quot; and LastName = &quot;Doe&quot;. How do you update both Email and Phone without using Save() method?

    MongoDB.Driver.MongoServer _server = MongoDB.Driver.MongoServer.Create(&quot;mongodb://localhost&quot;);
    MongoDB.Driver.MongoDatabase _dataBase = _server.GetDatabase(&quot;test&quot;);
    MongoDB.Driver.MongoCollection&lt;Person&gt; _person = _dataBase.GetCollection&lt;Person&gt;(&quot;person&quot;);

    //Creat new person and insert it into collection
    ObjectId newId  = ObjectId.GenerateNewId();
    Person newPerson = new Person();
    newPerson.Id = newId.ToString();
    newPerson.FirstName = &quot;John&quot;;
    newPerson.LastName = &quot;Doe&quot;;
    newPerson.Email = &quot;john.doe@gmail.com&quot;;
    newPerson.Phone = &quot;8005551222&quot;;
    _person.Insert(newPerson);

    //Update phone and email for all record with firstname john and lastname doe
    MongoDB.Driver.Builders.QueryComplete myQuery = MongoDB.Driver.Builders.Query.And(MongoDB.Driver.Builders.Query.EQ(&quot;FirstName&quot;, &quot;John&quot;),    MongoDB.Driver.Builders.Query.EQ(&quot;LastName&quot;, &quot;Doe&quot;));
    MongoDB.Driver.Builders.UpdateBuilder update = MongoDB.Driver.Builders.Update.Set(&quot;Email&quot;, &quot;jdoe@gmail.com&quot;);

    _person.Update(myQuery, update);

How do you update multiple field using Update.Set in MongoDB using official c# driver?

Assume myObj is null.  Is it safe to write this?  

    if(myObj != null &amp;&amp; myObj.SomeString != null)

I know some languages won&#39;t execute the second expression because the &amp;&amp; evaluates to false before the second part is executed.

Is relying on &amp;&amp; short-circuiting safe in .NET?

How do you check that a uri string is valid (that you can feed it to the Uri constructor)?

So far I only have the following but for obvious reasons I&#39;d prefer a less brute way:

        Boolean IsValidUri(String uri)
        {
            try
            {
                new Uri(uri);
                return true;
            }
            catch
            {
                return false;
            }
        }

I tried Uri.IsWellFormedUriString but it doesn&#39;t seem to like everything that you can throw at the constructor. For example:

    String test = @&quot;C:\File.txt&quot;;
    Console.WriteLine(&quot;Uri.IsWellFormedUriString says: {0}&quot;, Uri.IsWellFormedUriString(test, UriKind.RelativeOrAbsolute));
    Console.WriteLine(&quot;IsValidUri says: {0}&quot;, IsValidUri(test));

The output will be:

    Uri.IsWellFormedUriString says: False
    IsValidUri says: True

**Update/Answer**

The Uri constructor uses kind Absolute by default. This was causing a discrepancy when I tried using Uri.TryCreate and the constructor. You do get the expected outcome if you match the UriKind for both the constructor and TryCreate.


How to check that a uri string is valid

Does anybody know a way to set the `ComboBox`&#39;s content&#39;s width to autosize

I do not mean the `ComboBox` itself, just the opened content.

Auto-width of ComboBox&#39;s content

I’m doing some refactoring of a simple application to follow MVVM and my question is how do I move a SelectionChanged event out of my code behind to the viewModel? I’ve looked at some examples of binding elements to commands but didn’t quite grasp it. Can anyone assist with this. Thanks!

**Can anyone provide a solution using the code below? Many thanks!** 


    public partial class MyAppView : Window 
	{
		public MyAppView()
		{
			InitializeComponent();

            this.DataContext = new MyAppViewModel ();

			// Insert code required on object creation below this point.
		}

        private void contactsList_SelectionChanged(object sender, System.Windows.Controls.SelectionChangedEventArgs e)
        {
            //TODO: Add event handler implementation here.           
            //for each selected contact get the labels and put in collection 

            ObservableCollection&lt;AggregatedLabelModel&gt; contactListLabels = new ObservableCollection&lt;AggregatedLabelModel&gt;();

            foreach (ContactListModel contactList in contactsList.SelectedItems)
            {
                foreach (AggregatedLabelModel aggLabel in contactList.AggLabels)
                {
                    contactListLabels.Add(aggLabel);
                }
            }
            //aggregate the contactListLabels by name
            ListCollectionView selectedLabelsView = new ListCollectionView(contactListLabels);

            selectedLabelsView.GroupDescriptions.Add(new PropertyGroupDescription(&quot;Name&quot;));
            tagsList.ItemsSource = selectedLabelsView.Groups;
        }
	}

WPF Binding UI events to commands in ViewModel

What is the difference betweeen the following:

 - [SelectedItem][1]
 - [SelectedValue][2]
 - [SelectedValuePath][3]

All these dependency properties are defined in [Selector][4] class. I often confuse `SelectedItem` with `SelectedValue` , and `SelectedValue` with `SelectedValuePath`. 

I would like to know the difference between them, and also when do we use them, especially `SelectedValue` and `SelectedValuePath`. Please explain their *use* with some simple examples.

[1]:http://msdn.microsoft.com/en-us/library/system.windows.controls.primitives.selector.selecteditem.aspx
[2]:http://msdn.microsoft.com/en-us/library/system.windows.controls.primitives.selector.selectedvalue.aspx
[3]:http://msdn.microsoft.com/en-us/library/system.windows.controls.primitives.selector.selectedvaluepath.aspx
[4]:http://msdn.microsoft.com/en-us/library/system.windows.controls.primitives.selector_properties.aspx

Difference between SelectedItem, SelectedValue and SelectedValuePath

I feel stupid but cannot find out how to add a text to a WPF Label control in code. Like following for a TextBlock:

    DesrTextBlock.Text = &quot;some text&quot;;

 What is equivalent property in Label for doing it?

    DesrLabel.??? = &quot;some text&quot;; //something like this



How to add text to a WPF Label in code?

I&#39;m trying to call `System.Windows.Threading.Dispatcher.BeginInvoke`. The signature of the method is this:

    BeginInvoke(Delegate method, params object[] args)

I&#39;m trying to pass it a Lambda instead of having to create a Delegate.

    _dispatcher.BeginInvoke((sender) =&gt; { DoSomething(); }, new object[] { this } );

It&#39;s giving me a compiler error saying that I 

&gt; can&#39;t convert the lambda to a System.Delegate. 

The signature of the delegate takes an object as a parameter and returns void. My lambda matches this, yet it&#39;s not working. What am I missing?

Dispatcher.BeginInvoke: Cannot convert lambda to System.Delegate

I&#39;m new to WPF and want to do some basic databinding.
I have a List of a CustomObject and want to bind it to a DataGrid.

MainWindow.xaml.cs

 

       using System;
        using System.Collections.Generic;
        using System.Linq;
        using System.Text;
        using System.Windows;
        using System.Windows.Controls;
        using System.Windows.Data;
        using System.Windows.Documents;
        using System.Windows.Input;
        using System.Windows.Media;
        using System.Windows.Media.Imaging;
        using System.Windows.Navigation;
        using System.Windows.Shapes;
        
        namespace WpfApplication1
        {
            /// &lt;summary&gt;
            /// Interaction logic for MainWindow.xaml
            /// &lt;/summary&gt;
            public partial class MainWindow : Window
            {
                public MainWindow()
                {
                    InitializeComponent();
                    List&lt;ArticleItem&gt; list = new List&lt;ArticleItem&gt;() 
                    {
                    new ArticleItem(){ ID=3, Title=&quot;test&quot;, ViewCount=5},
                    new ArticleItem(){ ID=3, Title=&quot;test&quot;, ViewCount=5},
                    new ArticleItem(){ ID=3, Title=&quot;test&quot;, ViewCount=5},
                    new ArticleItem(){ ID=3, Title=&quot;test&quot;, ViewCount=5},
                    };
                }
            }
        
            public class ArticleItem 
            {
                public int ID { get; set; }
                public int ViewCount { get; set; }
                public String Title { get; set; }
            }
        }

This is how my grid looks like:

    &lt;DataGrid Height=&quot;179&quot; HorizontalAlignment=&quot;Left&quot; Margin=&quot;54,65,0,0&quot; Name=&quot;dataGrid1&quot; VerticalAlignment=&quot;Top&quot; Width=&quot;382&quot;&gt;
        &lt;DataGrid.Columns&gt;
            &lt;DataGridTextColumn Header=&quot;ID&quot;/&gt;
                &lt;DataGridTextColumn Header=&quot;ViewCount&quot; /&gt;
            &lt;DataGridTextColumn Header=&quot;Title&quot; /&gt;
        &lt;/DataGrid.Columns&gt;
    &lt;/DataGrid&gt;

I&#39;m used to the databinding from ASP.Net, where I can easily say:

    this.dataGrid1.DataSource = list;

How must I proceed in WPF?


Content Type	Original Author	Original Content on Stackoverflow
Question	ns12345	View Question on Stackoverflow
Solution 1 - C#	Joey	View Answer on Stackoverflow
Solution 2 - C#	danielcooperxyz	View Answer on Stackoverflow
Solution 3 - C#	GadyC	View Answer on Stackoverflow
Solution 4 - C#	John K.	View Answer on Stackoverflow
Solution 5 - C#	A.R.	View Answer on Stackoverflow

How to allow copying message on MessageBox

C# Problem Overview

C# Solutions

Solution 1 - C#

Solution 2 - C#

Solution 3 - C#

I did it this way:

Solution 4 - C#

Solution 5 - C#

Convert RGB values to Integer

Is it possible to track hash links like pages with google analytics?

Attributions