Referencing an external ResourceDictionary (XAML File):

    &lt;Application.Resources&gt;
        &lt;ResourceDictionary Source=&quot;MyResources.xaml&quot; /&gt;
    &lt;/Application.Resources&gt;

Referencing an external ResourceDictionary (DLL):

    &lt;Application.Resources&gt;
        &lt;ResourceDictionary Source=&quot;/MyExternalAssembly;component/MyResources.xaml&quot; /&gt;
    &lt;/Application.Resources&gt;

  [1]: http://www.nukeation.com/internal/(guide)%20Designer%20Developer%20Workflow.pdf

We&#39;re in the process of planning a large, enterprise application. We&#39;re focusing our efforts on evaluating hibernate after experiencing the pains of J2EE.

It looks like the new Java EE API is simpler. I&#39;ve also read some good things about Hibernate and iBatis. Our team has little experience with any of the frameworks.

There are 5 main comparisong points I&#39;d like to determine

- Learning Curve/Ease of Use
- Productivity
- Maintainability/Stability
- Performance/Scalability
- Ease of Troubleshooting

If you were to manage a team of ~6 developers with J2EE experience which ORM tool would you use and why?



Hibernate, iBatis, Java EE or other Java ORM tool

How does c find at run time the size of array? where is the information about array size or bounds of array stored ? 

How Does sizeof(Array) work

I have a few WPF applications and I want all my styles to be in a shared assembly instead of declaring them in each application separately.

I am looking for a way so I don&#39;t have to change all my `Style=&quot;{StaticResource BlahBlah}&quot;` in the existing applications; I just want to add the reference to this style assembly, and delete it from the current application, so it&#39;s taken from the assembly.

Is there any way?

Load WPF styles or other Static Resources from an external file or assembly

I have a few WPF applications and I want all my styles to be in a shared assembly instead of declaring them in each application separately.
I am looking for a way so I don't have to change all my <code>Style="{StaticResource BlahBlah}"</code> in the existing applications; I just want to add the reference to this style assembly, and delete it from the current application, so it's taken from the assembly.
Is there any way?

Say I want a `TextBlock` to have its `Width` equal to it&#39;s Parent container&#39;s `Width` (ie,  stretch from side to side) or a percentage of it&#39;s Parent Container `Width`, how can I accomplish this in `XAML` without specifying absolute values?

I want to do this so that if the Parent Container container is later on expanded (its&#39; `Width` increased), its&#39; Child Elements will also be expanded automatically.  (basically, like in HTML and CSS)




WPF: Setting the Width (and Height) as a Percentage Value

How can I align the column data to center in a WPF `DataGrid`?

Text alignment in a WPF DataGrid

I am currently making an MP3 player in WPF, and I want to make a slider that will allow the user to seek to a particular position in an MP3 by sliding the slider to the left or right.

I have tried using the `ValueChanged` event but that triggers every time it&#39;s value is changed, so if you drag it across, the event will fire multiple times, **I want the event to only fire when the user has finished dragging the slider and Then get the new value**.

How can I achieve this?


----------

**[Update]**

I have found [this post][1] on MSDN which basically discusses the same thing, and they came up with two &quot;solutions&quot;; either subclassing the Slider or invoking a `DispatcherTimer` in the `ValueChanged` event that invokes the action after a timespan.

Can you come up with anything better then the two mentioned above?


  [1]: http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/d8b9c195-12b9-45f5-8880-94cb05aefdee/

WPF: Slider with an event that triggers after a user drags

I have the following `ListView`:

    &lt;ListView Name=&quot;TrackListView&quot;&gt;
        &lt;ListView.View&gt;
            &lt;GridView&gt;
                &lt;GridViewColumn Header=&quot;Title&quot; Width=&quot;100&quot; 
                                HeaderTemplate=&quot;{StaticResource BlueHeader}&quot; 
                                DisplayMemberBinding=&quot;{Binding Name}&quot;/&gt;

                &lt;GridViewColumn Header=&quot;Artist&quot; Width=&quot;100&quot;  
                                HeaderTemplate=&quot;{StaticResource BlueHeader}&quot;  
                                DisplayMemberBinding=&quot;{Binding Album.Artist.Name}&quot; /&gt;
            &lt;/GridView&gt;
        &lt;/ListView.View&gt;
    &lt;/ListView&gt;

How can I attach an event to every bound item that will fire on double-clicking the item?

WPF ListView: Attaching a double-click (on an item) event

Since there&#39;s no `button.PerformClick()` method in WPF, is there a way to click a WPF button programmatically?

How to programmatically click a button in WPF?

I want to create a simple image viewer in WPF that will enable the user to:

 - Pan (by mouse dragging the image).
 - Zoom (with a slider).
 - Show overlays (rectangle selection for example).
 - Show original image (with scroll bars if needed).

Can you explain how to do it? 

I didn&#39;t find a good sample on the web.
Should I use ViewBox? Or ImageBrush? 
Do I need ScrollViewer?




Pan &amp; Zoom Image

There is a package I have to deal with which installs assemblies straight into the GAC (e.g. somewhere deep in %windows%/assembly).  

How do I exorcise the actual assembly (the DLL) from the GAC into the normal file system?

Thanks.

How to extract an assembly from the GAC?

How do I obtain the version number of the calling web application in a referenced assembly?

I&#39;ve tried using System.Reflection.Assembly.GetCallingAssembly().GetName() but it just gives me the dynamically compiled assembly (returning a version number of 0.0.0.0).

**UPDATE: In my case I needed a solution that did not require a reference back to a class within the web application assembly.  Jason&#39;s answer below (marked as accepted) fulfils this requirement - a lot of others submitted here don&#39;t.**

Using the Web Application version number from an assembly (ASP.NET/C#)

I recently created an interface layer to distinguish the DataAccessProvider from our Business logic layer.
With this approach we can change our choice of DataAccessProvider whenever we want by changing the values in the Web/App.Config.
(more details can be given if needed).

Anyway, to do this we use reflection to accomplish our DataProvider class on which we can work.

   

    /// &lt;summary&gt;
    /// The constructor will create a new provider with the use of reflection.
    /// If the assembly could not be loaded an AssemblyNotFoundException will be thrown.
    /// &lt;/summary&gt;
    public DataAccessProviderFactory()
    {
    	string providerName = ConfigurationManager.AppSettings[&quot;DataProvider&quot;];
    	string providerFactoryName = ConfigurationManager.AppSettings[&quot;DataProviderFactory&quot;];
    	try
    	{
    		activeProvider = Assembly.Load(providerName);
    		activeDataProviderFactory = (IDataProviderFactory)activeProvider.CreateInstance(providerFactoryName);
    	}
    	catch
    	{
    		throw new AssemblyNotFoundException();
    	}
    }

But now I&#39;m wondering how slow reflection is?

How slow is Reflection

**Scenario:** I&#39;ve an n-Tier enterprise ASP.NET application deployed using Web Deployment Projects. All tiers produce independent assemblies that is consumed by the ASP.NET application.

**Problem:** When I run the app. for the first time after deployment it takes lot of time to load dependent assemblies in memory. But once loaded its lighting fast app. In case if there are no users accessing the app, IIS unloads the assemblies from the memory and when a user tried to access the app on a later instance it goes on loading all the assemblies once again taking the same amount of time to load as it takes to do so for the first time.

**I&#39;m looking for a solution that enables me to keep my assemblies loaded into memory persistently overriding the volatile nature of assemblies towards memory residency.**

Or any other solution that lets my users happily use the app resolving the mentioned problem.

How to keep ASP.NET assemblies in AppDomain alive?

In `AssemblyInfo` there are two assembly versions:

 1. `AssemblyVersion`: Specify the version of the assembly being attributed.
 2. `AssemblyFileVersion`: Instructs a compiler to use a specific version number for the Win32 file version resource. The Win32 file version is not required to be the same as the assembly&#39;s version number.

I can get the `Assembly Version` with the following line of code:

    Version version = Assembly.GetEntryAssembly().GetName().Version;

But how can I get the `Assembly File Version`?

How can I get the assembly file version

In HTML/CSS you can define a style which can be applied to many types of elements, e.g.:

    .highlight {
        color:red;
    }

can be applied to both P and DIV, e.g.:

    &lt;p class=&quot;highlight&quot;&gt;this will be highlighted&lt;/p&gt;
    &lt;div class=&quot;highlight&quot;&gt;this will also be highlighted&lt;/div&gt;

but in XAML you seem to have to define the TargetType for styles, otherwise you get an error:

    &lt;Style x:Key=&quot;formRowLabel&quot; TargetType=&quot;TextBlock&quot;&gt;

is there a way to allow a XAML style to be applied to multiple elements or even to leave it open as in CSS?





Can you define multiple TargetTypes for one XAML style?

I have an order entry form that has a `ListBox` with a list of line items. I have my items template, and one of the values is a `ComboBox` in each of my Items.

Now, my form can also create Credit memo&#39;s in addition to purchase orders, but when I am creating a credit memo, I want to put the words &quot;Credit Memo&quot; over the list box,  however, the `TextBlock` covers the `ComboBox` in two of my line items. I would like to pass my click event through the `TextBlock` to the `ComboBox`es but I&#39;m not sure how to do it.

This is what I have, ( Maybe I am coming at this totally wrong, I am kinda a noob with WPF )

    &lt;ListBox SelectionMode=&quot;Single&quot; Grid.Row=&quot;2&quot; 
             ItemsSource=&quot;{Binding Path=LineItems}&quot; HorizontalContentAlignment=&quot;Stretch&quot; 
             IsSynchronizedWithCurrentItem=&quot;True&quot; Background=&quot;#66FFFFFF&quot;&gt;
        &lt;ListBox.ItemContainerStyle&gt;
            &lt;Style TargetType=&quot;{x:Type ListBoxItem}&quot;&gt;
                &lt;Setter Property=&quot;Background&quot; Value=&quot;WhiteSmoke&quot;/&gt;
                &lt;Setter Property=&quot;BorderThickness&quot; Value=&quot;1&quot; /&gt;
                &lt;Style.Triggers&gt;
                    &lt;DataTrigger Binding=&quot;{Binding Path=IsPartBackOrder}&quot; Value=&quot;True&quot;&gt;
                        &lt;Setter Property=&quot;Background&quot; Value=&quot;Orange&quot; /&gt;
                    &lt;/DataTrigger&gt;                       
                &lt;/Style.Triggers&gt;
            &lt;/Style&gt;
        &lt;/ListBox.ItemContainerStyle&gt;
        &lt;ListBox.ItemTemplate&gt;
            &lt;DataTemplate DataType=&quot;{x:Type Entities:SalesOrderLineItem}&quot; &gt;
                &lt;OrderEntry:SalesOrderLineItemCreate DataContext=&quot;{Binding}&quot; DeleteSalesOrderLineItem=&quot;DeleteSalesOrderLineItem&quot; Margin=&quot;0,3,3,0&quot; &gt;
                    &lt;OrderEntry:SalesOrderLineItemCreate.Resources&gt;
                        &lt;Style TargetType=&quot;{x:Type OrderEntry:SalesOrderLineItemCreate}&quot;&gt;
                            &lt;Style.Triggers&gt;
                                &lt;DataTrigger 
                                        Binding=&quot;{Binding RelativeSource=
                                          {
                                             RelativeSource 
                                             Mode=FindAncestor, 
                                             AncestorType={x:Type ListBoxItem}
                                          }, 
                                          Path=IsSelected
                                         }&quot; Value=&quot;True&quot;&gt;
                                    &lt;Setter Property=&quot;Background&quot; Value=&quot;LightBlue&quot; /&gt;
                                    &lt;Setter Property=&quot;Foreground&quot; Value=&quot;Black&quot; /&gt;
                                &lt;/DataTrigger&gt;
                            &lt;/Style.Triggers&gt;
                        &lt;/Style&gt;
                    &lt;/OrderEntry:SalesOrderLineItemCreate.Resources&gt;
                &lt;/OrderEntry:SalesOrderLineItemCreate&gt;
            &lt;/DataTemplate&gt;
        &lt;/ListBox.ItemTemplate&gt;
    &lt;/ListBox&gt;
    
    &lt;TextBlock Grid.Row=&quot;2&quot; 
               Text=&quot;Credit Memo&quot; 
               HorizontalAlignment=&quot;Center&quot;
               VerticalAlignment=&quot;Center&quot;
               FontSize=&quot;48&quot; Height=&quot;Auto&quot;
               FontStyle=&quot;Italic&quot;
               Foreground=&quot;Red&quot;
               Opacity=&quot;.25&quot;&gt;
        &lt;TextBlock.Style&gt;
            &lt;Style TargetType=&quot;{x:Type TextBlock}&quot;&gt;
                &lt;Style.Triggers&gt;
                    &lt;DataTrigger Binding=&quot;{Binding Path=OrderType}&quot; Value=&quot;CR&quot;&gt;
                        &lt;Setter Property=&quot;Visibility&quot; Value=&quot;Visible&quot; /&gt;
                    &lt;/DataTrigger&gt;
                    &lt;DataTrigger Binding=&quot;{Binding Path=OrderType}&quot; Value=&quot;CU&quot;&gt;
                        &lt;Setter Property=&quot;Visibility&quot; Value=&quot;Hidden&quot; /&gt;
                    &lt;/DataTrigger&gt;
                &lt;/Style.Triggers&gt;
            &lt;/Style&gt;
        &lt;/TextBlock.Style&gt;
    &lt;/TextBlock&gt;

How can I &quot;Click Through&quot; a control in WPF?

What I have is an object that has an `IsReadOnly` property. If this property is true, I would like to set the `IsEnabled` property on a Button, ( for example ), to false.

I would like to believe that I can do it as easily as `IsEnabled=&quot;{Binding Path=!IsReadOnly}&quot;` but that doesn&#39;t fly with WPF.

Am I relegated to having to go through all of the style settings? Just seems too wordy for something as simple as setting one bool to the inverse of another bool.

    &lt;Button.Style&gt;
        &lt;Style TargetType=&quot;{x:Type Button}&quot;&gt;
            &lt;Style.Triggers&gt;
                &lt;DataTrigger Binding=&quot;{Binding Path=IsReadOnly}&quot; Value=&quot;True&quot;&gt;
                    &lt;Setter Property=&quot;IsEnabled&quot; Value=&quot;False&quot; /&gt;
                &lt;/DataTrigger&gt;
                &lt;DataTrigger Binding=&quot;{Binding Path=IsReadOnly}&quot; Value=&quot;False&quot;&gt;
                    &lt;Setter Property=&quot;IsEnabled&quot; Value=&quot;True&quot; /&gt;
                &lt;/DataTrigger&gt;
            &lt;/Style.Triggers&gt;
        &lt;/Style&gt;
    &lt;/Button.Style&gt;

How to bind inverse boolean properties in WPF?

I&#39;m trying to replace an element&#39;s inline style tag value. The current element looks like this:    
  
    `&lt;tr class=&quot;row-even&quot; style=&quot;background: red none repeat scroll 0% 0%; position: relative; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial;&quot; id=&quot;0000ph2009-06-10s1s02&quot;&gt;`

and I&#39;d like to remove all that style stuff so that it&#39;s styled by it&#39;s class rather than it&#39;s inline style. I&#39;ve tried delete element.style; and element.style = null; and element.style = &quot;&quot;; to no avail. My current code breaks at these statement. The whole     function looks like:  
    function unSetHighlight(index){
  
    if(index &lt; 10)
    index = &quot;000&quot; + (index);
    else if (index &lt; 100)
      index = &quot;000&quot; + (index);
      else if(index &lt; 1000)
        index = &quot;0&quot; + (index);
        if(index &gt;= 1000)
          index = index;
        
    var mainElm = document.getElementById(&#39;active_playlist&#39;);
    var elmIndex = &quot;&quot;;
  
    for(var currElm = mainElm.firstChild; currElm !== null; currElm = currElm.nextSibling){
      if(currElm.nodeType === 1){

      var elementId = currElm.getAttribute(&quot;id&quot;);

      if(elementId.match(/\b\d{4}/)){
        
        elmIndex = elementId.substr(0,4);
        
                
        if(elmIndex == index){
          var that = currElm;
          //that.style.background = position: relative;
          }
        }
      }
    }
           
    clearInterval(highlight);
    alert(&quot;cleared Interval&quot;);
    that.style.background = null;

    alert(&quot;unSet highlight called&quot;);
    }

the clearInterval works but the alert never fires and the background stays the same. Anyone see any problems? Thanks in advance...


---

	function unSetHighlight(index){  
	  alert(index);  
	  if(index &lt; 10)  
		index = &quot;000&quot; + (index);  
		else if (index &lt; 100)  
		  index = &quot;000&quot; + (index);  
		  else if(index &lt; 1000)  
			index = &quot;0&quot; + (index);  
			if(index &gt;= 1000)  
			  index = index;  
			
		var mainElm = document.getElementById(&#39;active_playlist&#39;);
		var elmIndex = &quot;&quot;;
	  
		for(var currElm = mainElm.firstChild; currElm !== null; currElm = currElm.nextSibling){
		  if(currElm.nodeType === 1){

		  var elementId = currElm.getAttribute(&quot;id&quot;);

		  if(elementId.match(/\b\d{4}/)){
			
			elmIndex = elementId.substr(0,4);
			alert(&quot;elmIndex = &quot; + elmIndex + &quot;index = &quot; + index);
			
					
			if(elmIndex === index){
			  var that = currElm;
			  alert(&quot;match found&quot;);
			  }
			}
		  }
		}
			
		clearInterval(highlight);
		alert(&quot;cleared Interval&quot;);
		that.removeAttribute(&quot;style&quot;);
		
		//that.style.position = &quot;relative&quot;;
		//reColor();
		alert(&quot;unSet highlight called&quot;);
	}

removing html element styles via javascript

Is it possible to set multiple styles for different pieces of text inside a TextView?

 For instance, I am setting the text as follows:

    tv.setText(line1 + &quot;\n&quot; + line2 + &quot;\n&quot; + word1 + &quot;\t&quot; + word2 + &quot;\t&quot; + word3);

Is it possible to have a different style for each text element? E.g., line1 bold, word1 italic, etc.

The developer guide&#39;s [Common Tasks and How to Do Them in Android](http://developer.android.com/guide/faq/commontasks.html) includes [Selecting, Highlighting, or Styling Portions of Text](http://developer.android.com/guide/faq/commontasks.html#selectingtext):

&gt;     // Get our EditText object.
    EditText vw = (EditText)findViewById(R.id.text);
&gt;
    // Set the EditText&#39;s text.
    vw.setText(&quot;Italic, highlighted, bold.&quot;);
&gt;
    // If this were just a TextView, we could do:
    // vw.setText(&quot;Italic, highlighted, bold.&quot;, TextView.BufferType.SPANNABLE);
    // to force it to use Spannable storage so styles can be attached.
    // Or we could specify that in the XML.
&gt;
    // Get the EditText&#39;s internal text storage
    Spannable str = vw.getText();
&gt;
    // Create our span sections, and assign a format to each.
    str.setSpan(new StyleSpan(android.graphics.Typeface.ITALIC), 0, 7, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    str.setSpan(new BackgroundColorSpan(0xFFFFFF00), 8, 19, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
    str.setSpan(new StyleSpan(android.graphics.Typeface.BOLD), 21, str.length() - 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

But that uses explicit position numbers inside the text. Is there a cleaner way to do this?


Is it possible to have multiple styles inside a TextView?

I implemented skinning in my application. The application loads its Brushes.xaml resource dictionary which uses colors which reside in a skin-specific resource dictionary. So only one Color.xaml is loaded depending on the chosen skin.

Skin-Specific Color.xaml

        &lt;Color x:Key=&quot;TextBoxBackgroundColor&quot;&gt;#C4AF8D&lt;/Color&gt;
        &lt;Color x:Key=&quot;TextBoxForegroundColor&quot;&gt;#6B4E2C&lt;/Color&gt;
        &lt;Color x:Key=&quot;ToolBarButtonForegroundColor&quot;&gt;#6B4E2C&lt;/Color&gt;

Brushes.xaml:

        &lt;SolidColorBrush 
            x:Key=&quot;TextBoxBackground&quot; 
            Color=&quot;{DynamicResource TextBoxBackgroundColor}&quot; /&gt;
        &lt;SolidColorBrush 
            x:Key=&quot;TextBoxForeground&quot; 
            Color=&quot;{DynamicResource TextBoxForegroundColor}&quot; /&gt;

As you can see, multiple colors (TextBoxForegroundColor and ToolBarButtonForegroundColor) are the same. I&#39;d like to circumvent that as it is getting more and more confusing especially since the used colors are not recognizable by their hex value. You could advise now to merge both Colors into one but I have skins where the TextBoxForegroundColor is different from the ToolBarButtonForegroundColor.

What I would like to do is something like this:

    &lt;Color x:Key=&quot;DarkBrown&quot;&gt;#C4AF8D&lt;/Color&gt;

    &lt;Color x:Key=&quot;TextBoxBackgroundColor&quot; Color={StaticResource DarkBrown} /&gt;
    &lt;Color x:Key=&quot;ToolBarButtonForegroundColor&quot; Color={StaticResource DarkBrown} /&gt;

Is this at all possible in Xaml? I didn&#39;t find a way.

Content Type	Original Author	Original Content on Stackoverflow
Question	Shimmy Weitzhandler	View Question on Stackoverflow
Solution 1 - Wpf	Shimmy Weitzhandler	View Answer on Stackoverflow

Load WPF styles or other Static Resources from an external file or assembly

Wpf Problem Overview

Wpf Solutions

Solution 1 - Wpf

How Does sizeof(Array) work

Hibernate, iBatis, Java EE or other Java ORM tool

Attributions