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Double click on selected ListBox item

I have listbox with items from observablecollection.
<ListBox Name="listBoxData"
DataContext="{Binding Source={StaticResource MainWindowViewModelDataSource}}"
ItemTemplate="{DynamicResource BookTemplate}"
ItemsSource="{Binding Books, UpdateSourceTrigger=PropertyChanged}"
SelectedItem="{Binding SelectedBook, Mode=TwoWay}">
Question is how to wire double click action on selected item?
I do not avoid code behind approach (which is currently empty, all my logic is inside mvvm).

Your final line is a little confusing... to me, it says 'a code behind solution is ok', but then you mention MVVM, so I'm not sure. Either way, here is a simple answer for you. Declare the ListBox:
<ListBox SelectionChanged="ListBox_SelectionChanged" />
And then in the code behind, assuming single selection mode:
private void ListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
ListBoxItem listBoxItem = (ListBoxItem)e.AddedItems[0];
listBoxItem.PreviewMouseDoubleClick += ListBoxItem_PreviewMouseDoubleClick;
listBoxItem = (ListBoxItem)e.RemovedItems[0];
listBoxItem.PreviewMouseDoubleClick -= ListBoxItem_PreviewMouseDoubleClick;
}
private void ListBoxItem_PreviewMouseDoubleClick(object sender, MouseButtonEventArgs e)
{
// Selected item was double clicked
}
If you want the MVVM way, then you can just move the code from the ListBox_SelectionChanged handler to the SelectedBook setter and the ListBoxItem_PreviewMouseDoubleClick handler to the view model. However, it's not such a good idea handling UI events in the view model. It's better to use Attached Properties to handle them for you, but that's another story.

Disable the drop down menu of a WPF ComboBox

I have a ComboBox as specified below:
<ComboBox Height="31" Margin="7,7,0,0" Name="callerID" IsEditable="True" Background="LightBlue" KeyDown="callerIDbar_KeyDown" Foreground="White" FontSize="17" FontWeight="Bold" HorizontalContentAlignment="Center" VerticalAlignment="Top" Grid.Row="0" Grid.Column="0" />
storedCalls is a collection of phone numbers that will be populated to the ComboBox.Items:
foreach (string call in storedCalls)
{
if (call != "Enter a number to dial")
callerID.Items.Add(call);
}
All this works fine. I populate the Items primary because I like the autocomplete that is driven by the values in the ComboBox's Items collections. Is there a way the XAML to disable the drop down error, and disable the drop down menu? I.e. make a simple auto complete textbox like control?
I have seen full on TextBox controls that include a bunch of code-behind and complicated markup, and this is not what I am looking to do. I just need to disable the ability of the drop down menu from showing.

You can handle the DropDownOpened event and then close it.
So in n the XAML you get:
<ComboBox x:Name="cb" DropDownOpened="cb_DropDownOpened"/>
And in Code Behind:
private void cbCategoria_DropDownOpened(object sender, EventArgs e)
{
ComboBox cb = sender as ComboBox;
cb.IsDropDownOpen = false;
}
I prefear this solution reather than set MaxDropDownHeight to 0.
Your choice.

How to update binding source for checkbox from template?

I have a template (TextBlock + CheckBox) for items in LonglistSelector but I wasn't able to figure out how to refresh binding. The CheckBox is bound to a boolean property. Only way that worked so far was to navigate to same XAML page with different parameter however this "solution" is unusable.
I've found some examples how to use UpdateSource() with TextBox but none with CheckBox from template.
Here is my CheckBox from teplate. Many things are probably useless, I tried everything I found. Binding is working but it does not refresh so I have to navigate to another page for example and then it is refreshed.
<CheckBox BorderThickness="2"
VerticalAlignment="Center"
x:Name="TemplateCheckBox"
IsChecked="{Binding IsDone, UpdateSourceTrigger=Explicit, Mode=TwoWay}"
Checked="TemplateCheckBox_Checked"
Unchecked="TemplateCheckBox_Checked"
/>
EDIT: I found easy way how to update items in LonglistSelector. Just create another empty List set it as a ItemsSource and just afterwards set original list as ItemsSource.

<CheckBox BorderThickness="2" **Loaded="OnLoaded"**
VerticalAlignment="Center"
x:Name="TemplateCheckBox"
IsChecked="{Binding IsDone, UpdateSourceTrigger=Explicit, Mode=TwoWay}"
Checked="TemplateCheckBox_Checked"
Unchecked="TemplateCheckBox_Checked"
/>
private List<CheckBox> chkList=new List<CheckBox>();
private void OnLoaded(object sender,EventArgs e)
{
if(!chkList.Contians(sender as CheckBox))
{
chkList.Add(sender as CheckBox);
}
}
private void UpdateSource()
{
foreach(CheckBox chk in chkList)
{
chk.GetBindingExpression(CheckBox.IsChekcedProperty).UpdateSource();
}
}

Getting value back from ListBox to EventHandler in WP7

In my WP7 application I have ListBox control that binds with List<ItemTemplate> collection. On each ListBoxItem I have Click event which navigates to DisplayItem.xaml. Each ItemTemplate object has Id property which has to be passed to DispalyItem.xaml. I know that I can pass this value from Click EventHandler to DisplayItem.xaml using QueryString but how do I pass it from ListBox item to EventHandler ?
<ListBox x:Name="listBoxItems">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal">
<Ellipse Fill="red" Width="30" Height="30"></Ellipse>
<StackPanel Orientation="Horizontal">
<CheckBox IsChecked="{Binding Status}" FontSize="35" />
</StackPanel>
<StackPanel Orientation="Horizontal">
<HyperlinkButton Content="{Binding ItemContent}" Name="itemButton" Click="itemButton_Click"/>
</StackPanel>
<toolkit:ContextMenuService.ContextMenu>
<toolkit:ContextMenu>
<toolkit:MenuItem Header="edit"/>
<toolkit:MenuItem Header="delete"/>
</toolkit:ContextMenu>
</toolkit:ContextMenuService.ContextMenu>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
Id property is not mentioned in the above code because I just simply didnt know where to place it. Generally I want to know how can I get Id property back to the click EventHandler ? I'm sorry if this question is basic for you but I'm new to that and i wasn't sure how to google that.

If you're really new to Windows Phone 7, you may want to stop using the "Click" event and instead use the ListBox.SelectionChanged event. If you are bound to List<MyObject>, you could do the following:
In your XAML:
<ListBox SelectionChanged="NavigateToMyDetail" ... >
Then in the code behind, you would have something like this:
private void NavigateToMyDetail(object sender, SelectionChangedEventArgs e)
{
// Make sure that the ListBox change wasn't due to a deselection
if(e.AddedItems != null && e.AddedItems.Count == 1)
{
MyObject selectedItem = (MyObject)e.AddedItems[0];
// Now you have access to all your MyObject properties
// and you can pass that to your new page as a parameter
NavigationService.Navigate(new Uri("DisplayItem.xaml?ItemID=" + selectedItem.id.ToString(), UriKind.Relative));
}
}
And you can get that ID with the following code (probably in your "OnNavigatedTo" method).
string myItemID = null;
if(this.NavigationContext.QueryString.ContainsKey("ItemID"))
myItemID = NavigationContext.QueryString["ItemID"];
Hope that helps. The other way to try to get it is to give your ListBox a x:Name and then references it in your Click handler like:
private void MyClickHandler(object sender, System.Windows.RoutedEventArgs e)
{
MyObject selectedObject = (MyObject)MyListBoxName.SelectedItem;
}

There is a much simpler solution if you use data binding with an MVVM viewmodel behind it.
Simply bind you view to a property in the view model for the listbox "Source" and then also do the same for the ListBox "SelectedItem" or "SelectedIndex" properties, then you will have all you need accessible where ever you needed.
Only think to be aware of (as I'm uncertain if it ever got fixed) is to fixed the selected index property when an item has been selected, if you do not reset it to -1 then if the user returns to the list they cannot select the same item. (do this in the codebehind for the click event)
Also if you use MVVM and databinding you can enact an action from the change of the Selected item rather than using Code behind to drive the direction, always an option to keep things simple (but not mandatory)

I have also came to my own solution. I'm not sure If its correct bit its certainly solving my problem for now.
I found this CommandParameter property of object HyperlinkButton. I bound my MyObject.Id property value to it.
<HyperlinkButton Content="{Binding ItemContent}" Click="itemButton_Click" CommandParameter="{Binding Id}" />
Then in my EventHandler i said:
private void itemButton_Click(object sender, RoutedEventArgs e)
{
HyperlinkButton butt = sender as HyperlinkButton;
NavigationService.Navigate(new Uri("/ViewItem.xaml?itemId=" + butt.CommandParameter.ToString(), UriKind.Relative));
}
It works as I need it to work but I'm not sure If i should use it in my applications in the future.

Binding WPF combobox and displaying its Value to TextBox

Hello friends i want to display data from DB to combobox, DB table has id, investPlan, amount. Now i want to show 'investPln' col in combobox and when user selects any plan then respective amount displays in textBox control. I am able to display 'invetsPlan' rows in comboBox but don't know how to do rest thing. HELP ME!!
XAML Part
<ComboBox Height="23" Margin="70,72,88,0" Name="comboBox1" VerticalAlignment="Top" DropDownClosed="comboBox1_DropDownClosed"
ItemsSource="{Binding}" IsSynchronizedWithCurrentItem="True" SelectedValue="{Binding Path=id}" DisplayMemberPath="fullName" SelectedValuePath="id"/>
Code Behind Part
private void Window_Loaded(object sender, RoutedEventArgs e)
{
DataSet1TableAdapters.membersTableAdapter ta = new ComboBoxDB.DataSet1TableAdapters.membersTableAdapter();
comboBox1.ItemsSource = ta.GetData();
}

You're almost there!
<TextBox Text="{Binding ElementName=comboBox1, Path=SelectedItem.amount}" />
There you go :)

Combobox has a event to fire on change of an item .You can use that .SelectionChanged event