Just bind the `IsEnabled` property of the `TextBox` to the `IsChecked` property of the `CheckBox`:

    &lt;CheckBox Name=&quot;checkBox1&quot; /&gt;
    &lt;TextBox IsEnabled=&quot;{Binding ElementName=checkBox1, Path=IsChecked}&quot; /&gt;

if you have 40 controls like this, I would create a new control containing the checkbox and the textbox. The you can use that new control without the need to implement 40 commands, instead your new control has a single command implementation. and this is also less code to maintain as additional benefit

Can anyone point me to some Java snippet wherein i can get business (except Sat and Sun) days between two dates.

Calculate number of weekdays between two dates in Java

I have a function that generates data for say 100 rows (and 2 columns). For each row (in the 3rd column) I need to add a button which, when clicked, brings up a custom modal dialog box giving the user 4 options/buttons to choose from.

Any idea how to do this?

How to add a button programmatically in VBA next to some sheet cell data?

I have a WPF form with as many as 40 textboxes, with a checkbox for each. Each textbox should be enabled/disabled based on the value of its corresponding checkbox. I&#39;ve seen solutions where we can use `ICommand` to achieve this, but how do I handle 40 individual cases without having 40 `ICommand` implementations?



Enable/disable textbox based on checkbox selection in WPF using MVVM

<p>I have a WPF form with as many as 40 textboxes, with a checkbox for each. Each textbox should be enabled/disabled based on the value of its corresponding checkbox. I've seen solutions where we can use <code>ICommand</code> to achieve this, but how do I handle 40 individual cases without having 40 <code>ICommand</code> implementations?</p>


The question pretty much says it all.

I have a window, and have tried to set the DataContext using the full namespace to the ViewModel, but I seem to be doing something wrong.

    &lt;Window x:Class=&quot;BuildAssistantUI.BuildAssistantWindow&quot;
        xmlns=&quot;http://schemas.microsoft.com/winfx/2006/xaml/presentation&quot;
        xmlns:x=&quot;http://schemas.microsoft.com/winfx/2006/xaml&quot;
        DataContext=&quot;BuildAssistantUI.ViewModels.MainViewModel&quot;&gt;

How do I set a ViewModel on a window in XAML using DataContext property?

I&#39;m having an issue with multiline text blocks where it is not center aligning properly

The text is coming like
&lt;pre&gt;
abcde\nabc
&lt;/pre&gt;

This comes out
&lt;pre&gt;
  abcde
  abc
&lt;/pre&gt;

What I want is
&lt;pre&gt;
  abcde
   abc
&lt;/pre&gt;

This seems a simple thing and I would have thought that the textblock would center align like that automatically but it does not seem to.

WPF Multiline TextBlock CenterAlignment Issue

What must be done to get a WPF DataGrid with cells that wrap text instead of truncating it?

Right now when a text is bigger and don&#39;t fit in a column the text is truncated and users can&#39;t see it value cos the DataGrid&#39;s IsReadOnly property is true. What I want is that the text in cells be wrapped and the cell height (NO CELL WIDTH) increased the amount needed to show all the text.


How get a WPF Datagrid with cells that wrap text instead of truncating it?

I have a WPF Combobox which is filled with, say, Customer objects. I have a DataTemplate:

    &lt;DataTemplate DataType=&quot;{x:Type MyAssembly:Customer}&quot;&gt;
        &lt;StackPanel&gt;
            &lt;TextBlock Text=&quot;{Binding Name}&quot; /&gt;
            &lt;TextBlock Text=&quot;{Binding Address}&quot; /&gt;
        &lt;/StackPanel&gt;
    &lt;/DataTemplate&gt;

This way, when I open my ComboBox, I can see the different Customers with their Name and, below that, the Address.

But when I select a Customer, I only want to display the Name in the ComboBox. Something like:

    &lt;DataTemplate DataType=&quot;{x:Type MyAssembly:Customer}&quot;&gt;
        &lt;StackPanel&gt;
            &lt;TextBlock Text=&quot;{Binding Name}&quot; /&gt;
        &lt;/StackPanel&gt;
    &lt;/DataTemplate&gt;

Can I select another Template for the selected item in a ComboBox?

**Solution**

With help from the answers, I solved it like this:

    &lt;UserControl.Resources&gt;
        &lt;ControlTemplate x:Key=&quot;SimpleTemplate&quot;&gt;
            &lt;StackPanel&gt;
                &lt;TextBlock Text=&quot;{Binding Name}&quot; /&gt;
            &lt;/StackPanel&gt;
        &lt;/ControlTemplate&gt;
        &lt;ControlTemplate x:Key=&quot;ExtendedTemplate&quot;&gt;
            &lt;StackPanel&gt;
                &lt;TextBlock Text=&quot;{Binding Name}&quot; /&gt;
                &lt;TextBlock Text=&quot;{Binding Address}&quot; /&gt;
            &lt;/StackPanel&gt;
        &lt;/ControlTemplate&gt;
        &lt;DataTemplate x:Key=&quot;CustomerTemplate&quot;&gt;
            &lt;Control x:Name=&quot;theControl&quot; Focusable=&quot;False&quot; Template=&quot;{StaticResource ExtendedTemplate}&quot; /&gt;
            &lt;DataTemplate.Triggers&gt;
                &lt;DataTrigger Binding=&quot;{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ComboBoxItem}}, Path=IsSelected}&quot; Value=&quot;{x:Null}&quot;&gt;
                    &lt;Setter TargetName=&quot;theControl&quot; Property=&quot;Template&quot; Value=&quot;{StaticResource SimpleTemplate}&quot; /&gt;
                &lt;/DataTrigger&gt;
            &lt;/DataTemplate.Triggers&gt;
        &lt;/DataTemplate&gt;
    &lt;/UserControl.Resources&gt;

Then, my ComboBox:

    &lt;ComboBox ItemsSource=&quot;{Binding Customers}&quot; 
                    SelectedItem=&quot;{Binding SelectedCustomer}&quot;
                    ItemTemplate=&quot;{StaticResource CustomerTemplate}&quot; /&gt;

The important part to get it to work was `Binding=&quot;{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type ComboBoxItem}}, Path=IsSelected}&quot; Value=&quot;{x:Null}&quot;` (the part where value should be x:Null, not True).

Can I use a different Template for the selected item in a WPF ComboBox than for the items in the dropdown part?

I need a simple way to set a shortcut for menu items.

But this don&#180;t work with shortcut, just with click:

    &lt;MenuItem Header=&quot;Editar&quot;&gt;
        &lt;MenuItem Header=&quot;Procurar&quot; Name=&quot;MenuProcurar&quot;
                  InputGestureText=&quot;Ctrl+F&quot;
                  Click=&quot;MenuProcurar_Click&quot;&gt;
            &lt;MenuItem.ToolTip&gt;
                &lt;ToolTip&gt;
                    Procurar
                &lt;/ToolTip&gt;
            &lt;/MenuItem.ToolTip&gt;
        &lt;/MenuItem&gt;
    &lt;/MenuItem&gt;

I am using WPF 4.0

Defining MenuItem Shortcuts

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

I currently do a lot of WPF development and have started creating some basic Android apps. When creating WPF apps I often use MVVM, normally using Prism, and would like to know if there are any examples of MVVM for the Android platform?

Android MVVM Design Pattern Examples

What is a good practice of setting control focus in MVVM architecture. 

The way I envision it, is with a property on the ViewModel that would trigger a focus change when needed. And than have the UI controls bind/listen to that property so that if it changes, appropriate focus will be set. 

I see it as a ViewModel thing, because i want to set focus appropriate after a certain action was performed by the ViewModel, such as loading certain data. 

What&#39;s the best practice? 


WPF-MVVM: Setting UI control focus from ViewModel

Trying to grasp the concepts of MVVM, I have already read several blogs and looked at a few projects.

From what I understand, a *View* is dumb, it just knows how to present something that is passed to it.

*Models* are just the plain data, and a *ViewModel* is something that acts like a padding in between the two, that it should get information from the *Model* and pass it onto the *View*, and the *View* should know how to present it. Or the other way around, if the information in the *View* changes, it should pass on the change to the *Model*.

But I still have no idea how to apply the concept. Can someone explain a very simple scenario so I can grasp the concept? I&#39;ve already looked at several projects, but it still doesn&#39;t make complete sense, so if someone could write it out in plain English, that would be nice.

Content Type	Original Author	Original Content on Stackoverflow
Question	aliensurfer	View Question on Stackoverflow
Solution 1 - Wpf	Thomas Levesque	View Answer on Stackoverflow
Solution 2 - Wpf	Wesley Kenis	View Answer on Stackoverflow

Enable/disable textbox based on checkbox selection in WPF using MVVM

Wpf Problem Overview

Wpf Solutions

Solution 1 - Wpf

Solution 2 - Wpf

How to add a button programmatically in VBA next to some sheet cell data?

Calculate number of weekdays between two dates in Java

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