You have to set the control&#39;s RenderTransformOrigin to 0.5, 0.5.

ex.:

    &lt;Button RenderTransformOrigin=&quot;0.5, 0.5&quot;&gt;
    	&lt;RepeatButton.RenderTransform&gt;
    	    &lt;RotateTransform Angle=&quot;90&quot;/&gt;
    	&lt;/RepeatButton.RenderTransform&gt;
    &lt;/RepeatButton&gt;

    &lt;Button ...&gt;
      &lt;Button.LayoutTransform&gt;
        &lt;RotateTransform CenterX=&quot;0.5&quot; CenterY=&quot;0.5&quot; Angle=&quot;90&quot;/&gt;
      &lt;/Button.LayoutTransform&gt;
    &lt;/Button&gt;


My understanding is that the origin isn&#39;t relevant with a LayoutTransform.

MSDN says:

&gt; Setting a transform provides powerful capabilities of scaling and
&gt; rotating. However, LayoutTransform ignores TranslateTransform
&gt; operations. This is because the layout system behavior for child
&gt; elements of a FrameworkElement auto-corrects any offsets to the
&gt; position of a scaled or rotated element into the layout and coordinate
&gt; system of the parent element.

and the following &quot;correctly&quot; rotates the button.

    &lt;Grid ShowGridLines=&quot;True&quot;&gt;
        &lt;Grid.RowDefinitions&gt;
            &lt;RowDefinition&gt;&lt;/RowDefinition&gt;
            &lt;RowDefinition Height=&quot;Auto&quot;&gt;&lt;/RowDefinition&gt;
            &lt;RowDefinition&gt;&lt;/RowDefinition&gt;
        &lt;/Grid.RowDefinitions&gt;
        &lt;Grid.ColumnDefinitions&gt;
            &lt;ColumnDefinition&gt;&lt;/ColumnDefinition&gt;
            &lt;ColumnDefinition Width=&quot;Auto&quot;&gt;&lt;/ColumnDefinition&gt;
            &lt;ColumnDefinition&gt;&lt;/ColumnDefinition&gt;
        &lt;/Grid.ColumnDefinitions&gt;
        &lt;Button Grid.Row=&quot;1&quot; Grid.Column=&quot;1&quot;&gt;Excessively Long Button Still Ok
            &lt;Button.LayoutTransform&gt;
                &lt;RotateTransform Angle=&quot;90&quot; /&gt;
            &lt;/Button.LayoutTransform&gt;
        &lt;/Button&gt;
    &lt;/Grid&gt;

Since I just discovered that RFC 5425 requires TLS 1.2 to be used, and that .NET doesn&#39;t yet support it, I wonder if there are any implementation, possibly open source, of TLS 1.2 protocol, as defined in RFC 5246.

Are there .NET implementation of TLS 1.2?

Could someone explain what the difference is between `epoll`, `poll` and threadpool?

- What are the pros / cons?
- Any suggestions for frameworks?
- Any suggestions for simple/basic tutorials?
- It seems that `epoll` and `poll` are Linux-specific... Is there an equivalent alternative for Windows?


What&#39;s the difference between epoll, poll, threadpool?

I want do rotate button to 90 degrees but it gets clipped because it rotates arount (0,0). How to make it rotate around center if I don&#39;t know it&#39;t width in pixels (it&#39;s a template for many buttons)

How to do rotation around control&#39;s center in XAML

<p>I want do rotate button to 90 degrees but it gets clipped because it rotates arount (0,0). How to make it rotate around center if I don't know it't width in pixels (it's a template for many buttons)</p>


I need to split a number into even parts for example:
  
   32427237 needs to become 324 272 37  
   103092501 needs to become 103 092 501

How does one go about splitting it and handling odd number situations such as a split resulting in these parts e.g. 123 456 789 0?


Splitting a string / number every Nth Character / Number?

I know C# 3.5 is used with VS2008 and .NET 3.5.  
Also C# 4 is part of VS2010 and .Net 4.0 .  
But what is C# 5? What IDE?

What is C# 5 and where does it come from?

I have a `DetailsView` with a `TextBox`
and I want the *input data* be *saved always* with the ***first letter in capital***.

**Example:**

    &quot;red&quot; --&gt; &quot;Red&quot;
    &quot;red house&quot; --&gt; &quot; Red house&quot;

How can I achieve this **maximizing performance**?

----------------------------
**Note**:

Based on the answers and the comments under the answers, many people think this is asking about capitalizing *all* words in the string. E.g. `=&gt; Red House` **It isn&#39;t, but if that is what you seek**, look for one of the answers that uses `TextInfo`&#39;s `ToTitleCase` method. (Note: Those answers are *incorrect* for the question actually asked.)
See [TextInfo.ToTitleCase documentation][1] for caveats (doesn&#39;t touch all-caps words - they are considered acronyms; may lowercase letters in middle of words that &quot;shouldn&#39;t&quot; be lowered, e.g., &quot;McDonald&quot; &amp;rarr; &quot;Mcdonald&quot;; not guaranteed to handle all culture-specific subtleties re capitalization rules.)

-------------------
**Note**:

The question is *ambiguous* as to whether letters after the first should be **forced** to *lower case*.  The accepted answer assumes that *only the first letter should be altered*. If you want to force *all letters in the string except the first* to be lower case, look for an answer containing `ToLower`, and *not containing ToTitleCase*.

  [1]: https://docs.microsoft.com/dotnet/api/system.globalization.textinfo.totitlecase?view=netcore-2.2





Make first letter of a string upper case (with maximum performance)

Is there a way to put a SQL Server Reporting Services report viewer control on an ASP.net MVC view? If not...what is the best way to accomplish this? 

Viewing SSRS Reports in an ASP.net MVC Site

In C# how can I unit test a greater than condition? 

I.e., iIf record count is greater than 5 the test succeed.

Any help is appreciated

Code:

    int actualcount = target.GetCompanyEmployees().Count
    Assert. ?

C# unit test, how to test greater than

Does .NET framework have a collection of icons for use in Windows Forms or WPF application somewhere? How does one use it? For example, how do I use it as an application window icon? 

I recall, if you want to display a message box there is a choice to show different icons, I suppose there are more icons in the framework?



Does .NET have icon collections?

I&#39;m trying to show a tooltip regardless of a buttons state, but this does not seem to do the trick:

    &lt;Button Command=&quot;{Binding Path=CommandExecuteAction}&quot; 
            ToolTip=&quot;{Binding Path=Description}&quot; ToolTipService.ShowOnDisabled=&quot;true&quot;
            Style=&quot;{StaticResource toolbarButton}&quot;&gt;
       &lt;Image Source=&quot;{Binding Path=Icon}&quot;&gt;&lt;/Image&gt;
    &lt;/Button&gt;

How can i show the tooltip when the button is disabled due to command.CanExecute returning false?

&lt;b&gt;Note: &lt;/b&gt;

ToolTipService.ShowOnDisabled=&quot;true&quot; works like a charm. The reason this didn&#39;t work in my example is because the style associated with the button redefines the controltemplate and turned off hit-testing on the button when the button was disabled (IsHitTestVisible=false). Re-enabling hit-testing in the controltemplate made the tooltip appear when the button was disabled.

wpf: how to show tooltip when button disabled by command?

Is that possible to set an integer value in WPF control Resources?!


    &lt;UserControl.Resources&gt;

        &lt;SolidColorBrush x:Key=&quot;MyLineBrush&quot; Color=&quot;LightGreen&quot; /&gt;

        ??? &lt;Integer x:Key=&quot;MyStrokeThickness&quot; Value=&quot;2&quot; /&gt; ???

    
        &lt;Style TargetType=&quot;local:MyLine&quot; x:Key=&quot;MyLineStyleKey&quot;&gt;    

            &lt;Setter Property=&quot;Stroke&quot; 
                Value=&quot;{DynamicResource MyLineBrush}&quot;/&gt;

            &lt;Setter Property=&quot;StrokeThickness&quot; 
                Value=&quot;{DynamicResource MyStrokeThickness}&quot;/&gt;

        &lt;/Style&gt;

In order to modify dynamically the `MyLineBrush` and `MyStrokeThickness` values...

An integer value in WPF Resources?

When you press &lt;kbd&gt;Enter&lt;/kbd&gt; anywhere in a HTML `form` it triggers its `action`, that is equivalent of pressing the `submit` button.
How to make a window that when I press  &lt;kbd&gt;Enter&lt;/kbd&gt; anywhere it will trigger an event?

How to make a submit button in WPF?

I have lots of entities with nested `List&lt;&gt;` in each.

For example, I have `BaseEntity` which has `List&lt;ColumnEntity&gt;`.
`ColumnEntity` class has `List&lt;Info&gt;` and so on.

We are working with a [WPF][1] UI, and we need to track all changes in every List of `BaseEntity`. It is implemented by instantiating a `new ObservableCollection` based on the needed list, and with binding to that `ObservableCollection`.

What are the pros and cons changing all these nested `Lists` to `ObservableCollections`? So we can track all changes in `BaseEntity` itself without reassigning each list of `BaseEntity` to modified bound `ObservableCollection`?

Assuming that methods specific to `List` are never used.

  [1]: http://en.wikipedia.org/wiki/Windows_Presentation_Foundation


ObservableCollection&lt;&gt; vs. List&lt;&gt;

I have a `Button` that closes my window when it&#39;s clicked:

    &lt;Button x:Name=&quot;buttonOk&quot;  IsCancel=&quot;True&quot;&gt;Ok&lt;/Button&gt;

That&#39;s fine until I add a `Command` to the `Button` i.e.

    &lt;Button x:Name=&quot;buttonOk&quot; 
            Command=&quot;{Binding SaveCommand}&quot; 
            IsCancel=&quot;True&quot;&gt;Ok&lt;/Button&gt;

Now it doesn&#39;t close presumably because I am handling the `Command`. I can fix this by putting an `EventHandler` in and calling `this.Close()` i.e. 

    &lt;Button x:Name=&quot;buttonOk&quot; 
            Click=&quot;closeWindow&quot; 
            Command=&quot;{Binding SaveCommand}&quot; 
            IsCancel=&quot;True&quot;&gt;Ok&lt;/Button&gt;

but now I have code in my code behind i.e. the method `SaveCommand`. I am using the MVVM pattern and `SaveCommand` is the only code in my code behind. 

How can I do this differently so as not to use code behind?

WPF MVVM: How to close a window

I would like to use StringFormat to do someting like this :

    &lt;Label x:Name=&quot;myLabel&quot;&gt;
        &lt;Label.Content&gt;
            &lt;Multibinding StringFormat=&quot;{}{0} - {1}&quot;&gt;
                &lt;Binding Path=&quot;Lib1&quot; /&gt;
                &lt;Binding Path=&quot;Lib2&quot; /&gt;
            &lt;/MultiBinding&gt;
        &lt;/Label.Content&gt;
    &lt;/Label&gt;

However, it&#39;s doesn&#39;t work and I got this error instead : 

&gt;MultiBinding failed because it has no valid Converter. MultiBindingExpression:target element is &#39;Label&#39; (Name=&#39;myLabel&#39;); target property is &#39;Content&#39; (type &#39;Object&#39;)

Is there any way to make this code work ?

StringFormat and Multibinding with Label

Is it possible to have `DataTemplate` composition or inheritance (similar to &quot;BasedOn&quot; in Styles)? There are 2 instances where I need that.

   1. For inherited classes: I have a base class with several inherited classes. I don&#39;t want to duplicate the base class template in each of the derived class&#39;s `DataTemplate`.

   2. Different Views: for the same class I want to define a datatemplate, and then add to that template as appropriate. Ex. the base template will display the data in the object and then i want different templates that can perform different actions on the object, while displaying the data (inheriting the base template).


Is there a way to use data-template inheritance in WPF?

I have the following sample code that zooms each time a button is pressed:

XAML:

    &lt;Window x:Class=&quot;WpfApplication12.MainWindow&quot;
            xmlns=&quot;http://schemas.microsoft.com/winfx/2006/xaml/presentation&quot;
            xmlns:x=&quot;http://schemas.microsoft.com/winfx/2006/xaml&quot;
            Title=&quot;MainWindow&quot; Height=&quot;350&quot; Width=&quot;525&quot;&gt;

        &lt;Canvas x:Name=&quot;myCanvas&quot;&gt;

            &lt;Canvas.LayoutTransform&gt;
                &lt;ScaleTransform x:Name=&quot;myScaleTransform&quot; /&gt;
            &lt;/Canvas.LayoutTransform&gt; 

            &lt;Button Content=&quot;Button&quot; 
                    Name=&quot;myButton&quot; 
                    Canvas.Left=&quot;50&quot; 
                    Canvas.Top=&quot;50&quot; 
                    Click=&quot;myButton_Click&quot; /&gt;
        &lt;/Canvas&gt;
    &lt;/Window&gt;

*.cs

    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void myButton_Click(object sender, RoutedEventArgs e)
        {
            Console.WriteLine(&quot;scale {0}, location: {1}&quot;, 
                myScaleTransform.ScaleX,
                myCanvas.PointToScreen(GetMyByttonLocation()));

            myScaleTransform.ScaleX =
                myScaleTransform.ScaleY =
                myScaleTransform.ScaleX + 1;
            
            Console.WriteLine(&quot;scale {0}, location: {1}&quot;,
                myScaleTransform.ScaleX,
                myCanvas.PointToScreen(GetMyByttonLocation()));
        }
        
        private Point GetMyByttonLocation()
        {
            return new Point(
                Canvas.GetLeft(myButton),
                Canvas.GetTop(myButton));
        }
    }

the output is:

    scale 1, location: 296;315
    scale 2, location: 296;315
    
    scale 2, location: 346;365
    scale 3, location: 346;365
    
    scale 3, location: 396;415
    scale 4, location: 396;415


as you can see, there is a problem, that I thought solve by using `Application.DoEvents();` but... it does not exist *a priori* in .NET 4.

What to do?

Where is the Application.DoEvents() in WPF?

I am trying to format a textblock which is bound to a `TimeSpan` property. It works if the property is of type `DateTime` but it fails if it is a `TimeSpan`. I can get it done using a converter. But I am trying to find out if there is any alternatives.

Sample Code:

   
    public TimeSpan MyTime { get; set; }

    public Window2()
    {
        InitializeComponent();
        MyTime = DateTime.Now.TimeOfDay;
        DataContext = this;
    }

**Xaml**

    &lt;TextBlock Text=&quot;{Binding MyTime,StringFormat=HH:mm}&quot;/&gt;

I am expecting the textblock to show only hours and mintes. But it is showing as:

&gt; 19:10:46.8048860



Content Type	Original Author	Original Content on Stackoverflow
Question	Poma	View Question on Stackoverflow
Solution 1 - C#	Francesco De Vittori	View Answer on Stackoverflow
Solution 2 - C#	Andy	View Answer on Stackoverflow
Solution 3 - C#	grantnz	View Answer on Stackoverflow

How to do rotation around control's center in XAML

C# Problem Overview

C# Solutions

Solution 1 - C#

Solution 2 - C#

Solution 3 - C#

What's the difference between epoll, poll, threadpool?

Are there .NET implementation of TLS 1.2?

Attributions