That sounds right to me. You&#39;d need to put a Grid or Panel (StackPanel, WrapPanel, etc) as a child to define the layout.

Yes, in WPF the GroupBox will contain maximum of 1 element. You can include Grid as its child and in grid specify your desired components. For example 1 placed two buttons in GroupBox using Grid. 

Document Outline is shown below:

![Document Outline][1]

Code is as follow:

    &lt;GroupBox
                Header=&quot;Read Sensor&quot;
                HorizontalAlignment=&quot;Left&quot;
                Margin=&quot;485,4,0,0&quot;
                VerticalAlignment=&quot;Top&quot;
                Height=&quot;188&quot;
                Width=&quot;238&quot;&gt;
                &lt;Grid
                    HorizontalAlignment=&quot;Left&quot;
                    Height=&quot;169&quot;
                    Margin=&quot;0,0,-13,-3&quot;
                    VerticalAlignment=&quot;Top&quot;
                    Width=&quot;229&quot;&gt;
                    &lt;Button
                        x:Name=&quot;btnReadSensor1&quot;
                        Content=&quot;Read Sensor 1&quot;
                        HorizontalAlignment=&quot;Left&quot;
                        Margin=&quot;10,91,0,0&quot;
                        VerticalAlignment=&quot;Top&quot;
                        Width=&quot;207&quot;
                        Click=&quot;btnReadSensor1_Click&quot; /&gt;
                    &lt;Button
                        x:Name=&quot;btnReadSensor2&quot;
                        Content=&quot;Read Sensor 2&quot;
                        HorizontalAlignment=&quot;Left&quot;
                        Margin=&quot;10,64,0,0&quot;
                        VerticalAlignment=&quot;Top&quot;
                        Width=&quot;207&quot;
                        Click=&quot;btnReadSensor2_Click&quot; /&gt;
                &lt;/Grid&gt;
    &lt;/GroupBox&gt;


  [1]: http://i.stack.imgur.com/66NdC.png

Well the real answer is because groupbox inherits from HeaderedContentControl 

Take a look here
[MSDN][1]


  [1]: http://msdn.microsoft.com/en-us/library/bb613548.aspx

You must drag the items: textbox INTO the groupbox and must only have a single groupbox.  Cannot drag more than a single groupbox per linear coordinate for it to work.  Can have multiple groupboxes on a page, but not more than a single column wide or you will be limited with only having a single item being added to the groupbox.

My question is simple. What do they do?

The accepted answer below is a list of the .NET SDK Tools that come in the framework.

The .NET 2.0 SDK Programs - What does each tool do?

I have an XML document with a default namespace indicated at the root.
Something like this:

    &lt;MyRoot xmlns=&quot;http://www.mysite.com&quot;&gt;
       &lt;MyChild1&gt;
           &lt;MyData&gt;1234&lt;/MyData&gt; 
       &lt;/MyChild1&gt; 
    &lt;/MyRoot&gt;

The XSLT to parse the XML does not work as expected because of the
default namespace, i.e. when I remove the namespace, everything works as
expected.

Here is my XSLT:

    &lt;xsl:stylesheet version=&quot;1.0&quot; xmlns:xsl=&quot;http://www.w3.org/1999/XSL/Transform&quot;
				xmlns:xs=&quot;http://www.w3.org/2001/XMLSchema&quot;&gt;
     &lt;xsl:template match=&quot;/&quot; &gt;
      &lt;soap:Envelope xsl:version=&quot;1.0&quot; xmlns:xsi=&quot;http://www.w3.org/2001/XMLSchema-instance&quot;  xmlns:xsd=&quot;http://www.w3.org/2001/XMLSchema&quot; xmlns:soap=&quot;http://schemas.xmlsoap.org/soap/envelope/&quot;&gt;
       &lt;soap:Body&gt;
         &lt;NewRoot xmlns=&quot;http://wherever.com&quot;&gt;
           &lt;NewChild&gt;
             &lt;ChildID&gt;ABCD&lt;/ChildID&gt;
             &lt;ChildData&gt;
                &lt;xsl:value-of select=&quot;/MyRoot/MyChild1/MyData&quot;/&gt;
             &lt;/ChildData&gt;
           &lt;/NewChild&gt;
         &lt;/NewRoot&gt;
       &lt;/soap:Body&gt;
      &lt;/soap:Envelope&gt;
     &lt;/xsl:template&gt;
    &lt;/xsl:stylesheet&gt;

What needs to be done with XSLT document so that translation works properly?  What exactly needs to be done in XSLT document?

XSLT with XML source that has a default namespace set to xmlns

It seem that GroupBox can only contain one element, if I place more than one it&#39;s won&#39;t go inside(or get deleted in blend).

Is this by design or am I doing something wrong?

GroupBox in WPF can only contain one element?

<p>It seem that GroupBox can only contain one element, if I place more than one it's won't go inside(or get deleted in blend).</p>
<p>Is this by design or am I doing something wrong?</p>


I have a `TextBox` and a `Button` in my view.

Now I am checking a condition upon button click and if the condition turns out to be false, displaying the message to the user, and then I have to set the cursor to the `TextBox` control.

    if (companyref == null)
    {
        var cs = new Lipper.Nelson.AdminClient.Main.Views.ContactPanels.CompanyAssociation(); 

        MessageBox.Show(&quot;Company does not exist.&quot;, &quot;Error&quot;, MessageBoxButton.OK,
                        MessageBoxImage.Exclamation);

        cs.txtCompanyID.Focusable = true;

        System.Windows.Input.Keyboard.Focus(cs.txtCompanyID);
    }

The above code is in the ViewModel.

The `CompanyAssociation` is the view name.

But the cursor is not getting set in the `TextBox`.

The xaml is:


    &lt;igEditors:XamTextEditor Name=&quot;txtCompanyID&quot; 
                             KeyDown=&quot;xamTextEditorAllowOnlyNumeric_KeyDown&quot;
                             ValueChanged=&quot;txtCompanyID_ValueChanged&quot;
                             Text=&quot;{Binding Company.CompanyId,
                                            Mode=TwoWay,
                                            UpdateSourceTrigger=PropertyChanged}&quot;
                             Width=&quot;{Binding ActualWidth, ElementName=border}&quot;
                             Grid.Column=&quot;1&quot; Grid.Row=&quot;0&quot;
                             VerticalAlignment=&quot;Top&quot;
                             HorizontalAlignment=&quot;Stretch&quot;
                             Margin=&quot;0,5,0,0&quot;
                             IsEnabled=&quot;{Binding Path=IsEditable}&quot;/&gt;

    &lt;Button Template=&quot;{StaticResource buttonTemp1}&quot;
            Command=&quot;{Binding ContactCommand}&quot;
            CommandParameter=&quot;searchCompany&quot;
            Content=&quot;Search&quot;
            Width=&quot;80&quot;
            Grid.Row=&quot;0&quot; Grid.Column=&quot;2&quot;
            VerticalAlignment=&quot;Top&quot;
            Margin=&quot;0&quot;
            HorizontalAlignment=&quot;Left&quot;
            IsEnabled=&quot;{Binding Path=IsEditable}&quot;/&gt;

Set focus on TextBox in WPF from view model

[Typical approaches][1] recommend reading the binary via FileStream and comparing it byte-by-byte.

- Would a checksum comparison such as CRC be faster?
- Are there any .NET libraries that can generate a checksum for a file?


  [1]: http://support.microsoft.com/kb/320348

How to compare 2 files fast using .NET?

I have the following code, I want to call `data1()` from `data2()`. Is this possible in C#? If so, how?

    private void data1()
    {
    }
    private static void data2()
    {
       data1(); //generates error
    }



How do I call a non-static method from a static method in C#?

In WinForms, how do I force an immediate UI update from UI thread? 

What I&#39;m doing is roughly:

    label.Text = &quot;Please Wait...&quot;
    try 
    {
        SomewhatLongRunningOperation(); 
    }
    catch(Exception e)
    {
        label.Text = &quot;Error: &quot; + e.Message;
        return;
    }
    label.Text = &quot;Success!&quot;;

Label text does not get set to &quot;Please Wait...&quot; before the operation.

I solved this using another thread for the operation, but it gets hairy and I&#39;d like to simplify the code.


Force GUI update from UI Thread

I am learning C# 3.5 and I want to know what `[STAThread]` does in our programs?  

What does [STAThread] do?

I know about using `_` instead of `&amp;`, but I&#39;m looking at all the &lt;kbd&gt;Ctrl&lt;/kbd&gt; + type shortcuts.

&lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;Z&lt;/kbd&gt; for undo, &lt;kbd&gt;Ctrl&lt;/kbd&gt;+&lt;kbd&gt;S&lt;/kbd&gt; for save, etc.

Is there a &#39;standard&#39; way for implementing these in WPF applications? Or is it a case of roll your own and wire them up to whatever command/control?



Keyboard shortcuts in WPF

I&#39;m trying to do this:

    &lt;TextBlock Text=&quot;{Binding Path=Text, 
                              Converter={StaticResource stringFormatConverter}, 
                              ConverterParameter=&#39;&amp;\u2014{0}&#39;}&quot; /&gt;

To get a &amp;mdash; to appear in front of the text.  It doesn&#39;t work.  What should I be doing here?

How to put a unicode character in XAML?

There is no ListBox.SelectionMode=&quot;None&quot;, is there another way to disable selection in a listbox?

I create a global hot key to show a window by PInvoking `RegisterHotKey()`. But to do this I need that window&#39;s `HWND`, which doesn&#39;t exist until the window is loaded, that means shown for the first time. But I don&#39;t want to show the window before I can set the hot key. Is there a way to create a `HWND` for that window that is invisible to the user?

Content Type	Original Author	Original Content on Stackoverflow
Question	Athiwat Chunlakhan	View Question on Stackoverflow
Solution 1 - C#	Luke Quinane	View Answer on Stackoverflow
Solution 2 - C#	Hassan Rahman	View Answer on Stackoverflow
Solution 3 - C#	Aharon Muallem	View Answer on Stackoverflow
Solution 4 - C#	mike	View Answer on Stackoverflow

GroupBox in WPF can only contain one element?

C# Problem Overview

C# Solutions

Solution 1 - C#

Solution 2 - C#

Solution 3 - C#

Solution 4 - C#

XSLT with XML source that has a default namespace set to xmlns

The .NET 2.0 SDK Programs - What does each tool do?

Attributions