[SOLVED] Child Window Not Working Properly - WPF Discussion Boards

28-Jun-11 10:21

The Path's data ends up being a StreamGeometry at runtime and I don't see a direct way to get at its data.

You could try something like this (taken from this link[^]):

PathGeometry geometryTransformed = Geometry.Combine(Geometry.Empty, geometry, GeometryCombineMode.Union, transform);

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Re: Shift path

Lutosław28-Jun-11 10:48

Lutosław

28-Jun-11 10:48

IMHO it's rather a text processing task. After all, I want to alter the XAML to remove Transform declaration. It seems that I will left it as it is and it end up in a hall of shame some day, xor write a script which will make it.

Greetings - Jacek

Re: Shift path

Mark Salsbery28-Jun-11 10:59

How to keep two Combo Boxes in sync with WPF [modified]

28-Jun-11 10:59

Jacek Gajek wrote:
IMHO it's rather a text processing task.

At design time, yes. I thought you wanted a runtime way to do it, sorry Smile | :)

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

Member 297299227-Jun-11 9:42

Member 2972992

27-Jun-11 9:42

Hi
I have a four combo boxes, along with one text box and all 5 controls. The principle is that if the user selects an item from the first combo box, this selected item then gets reflected in the text box and the four other combo boxes. Whilst this action is working, if the user then selects a new item from the first combo box, say the next item down in the list, the new item is not showing in the other controls. The previous item is still there and hasn't been refreshed. Checking the class object, when first used, the object is being set with the value, but when selecting a new value from the combo box, this new value is not being passed on or up dates the object. I am using INotifyPropertyChanged!

I have set IsSyncronizeWithCurrentItem ="true" on all of the combo boxes, but this isn't working.

How do you very simply, keep all these controls in sync? Code is being built using MVVM design pattern.

modified on Monday, June 27, 2011 3:53 PM

Re: How to keep two Combo Boxes in sync with WPF

SledgeHammer0127-Jun-11 11:22

Re: How to keep two Combo Boxes in sync with WPF

27-Jun-11 11:22

IsSynchronizedWithCurrentItem does work. I've used it myself. I won't ask why you have 4 ComboBoxes and a TextBox all showing the same exact info Smile | :)

, but if its not working, you're likely doing something wrong, so post your code.

Mycroft Holmes27-Jun-11 12:59

[SOLVED] Child Window Not Working Properly

27-Jun-11 12:59

Check that the binding of the selecteditem in the combobox is Mode="TwoWay".

Never underestimate the power of human stupidity
RAH

AmbiguousName27-Jun-11 0:48

AmbiguousName

27-Jun-11 0:48

hello guys... I am new to Silverlight. I am trying to create child windows in silverlight but when I try to access some of the methods shown online, those methods are not shows in intellisense. For example

namespace SampleGUIs
{
    public partial class MainPage : UserControl
    {
        private ChildWindow cw;

        public MainPage()
        {
            InitializeComponent();
            cw = new ChildWindow();
            cw.Closed += new EventHandler(ShowMessage); //now this methos is not shown in intellisense
        }
    }
}

I have included System.Windows and System.Windows.Control. Same is the case in ChildWindow.xaml. Some of the methods are not shown like

namespace SilverlightApplication9
{
    public partial class PopupWindow : ChildWindow
    {
        public PopupWindow()
        {
            InitializeComponent();
            this.Title = "Child Window"; //not shown in intellisense so not available
        }
    }
}

what can be the problem? thnx

modified on Monday, June 27, 2011 7:15 AM

Re: Child Window Not Working Properly

Mycroft Holmes27-Jun-11 1:15

Re: Child Window Not Working Properly

27-Jun-11 1:15

Seems rather obvious, ChildWindow does not have a Title Property whereas UserControl does. It all comes down to what you are deriving your view from.

Never underestimate the power of human stupidity
RAH

AmbiguousName27-Jun-11 1:17

AmbiguousName

27-Jun-11 1:17

Thanx for your answer. It certainly has Title property. I have just solved it. May be I was putting the code in wrong places. But now its working.

How click more that visible row in DataGrid

tâzn27-Jun-11 0:09

tâzn

27-Jun-11 0:09

Hi All !

I using DataGrid in WPF and Using DataGrid.RowDetailsTemplate but i only click 1 row .How do I can click more that row in DataGrid?

You can Help me?
Thanks

Re: How click more that visible row in DataGrid

Mycroft Holmes27-Jun-11 1:17

Re: How click more that visible row in DataGrid

27-Jun-11 1:17

There should me a SelectionMode (I think) that can be set to extended.

Never underestimate the power of human stupidity
RAH

tâzn27-Jun-11 5:22

tâzn

27-Jun-11 5:22

Using :
<dg:DataGrid AutoGenerateColumns="False"
SelectionMode="Extended"
ItemsSource="{Binding Source={StaticResource FlickrFeed}}"
RowDetailsVisibilityMode="VisibleWhenSelected">

<dg:DataGrid.RowDetailsTemplate>
<DataTemplate>
<StackPanel Orientation="Horizontal" Margin="5">
<Image Source="{Binding XPath=media:thumbnail/@url}"
Width="60" Height="60"/>
<StackPanel Orientation="Vertical" Margin="5">
<TextBlock Foreground="CadetBlue" FontSize="20"
Width="400" TextWrapping="Wrap"
Text="{Binding XPath=media:category}"/>
</StackPanel>
</StackPanel>
</DataTemplate>
</dg:DataGrid.RowDetailsTemplate>

but only click a row.i want click more that row.
can you hepl me?

<dg:DataGrid.Columns>
<dg:DataGridTextColumn Header="Title"
Binding="{Binding XPath=title}" Width="150"/>
<dg:DataGridTextColumn Header="Published"
Binding="{Binding XPath=pubDate}"/>
<dg:DataGridTextColumn Header="Author"
Binding="{Binding XPath=media:credit}" Width="*"/>
</dg:DataGrid.Columns>

</dg:DataGrid>
</Grid>

Re: How click more that visible row in DataGrid

Mycroft Holmes27-Jun-11 12:54

Any way to copy / clone XAML resources?

27-Jun-11 12:54

tâzn wrote:
but only click a row.i want click more that row.

hold the <shift> or <ctrl> key when you click the second row

Never underestimate the power of human stupidity
RAH

SledgeHammer0124-Jun-11 18:17

24-Jun-11 18:17

lets say I have something like this in XAML:

<GridViewColumnCollection x:Key="Foo">
<GridViewColumn ... />
<GridViewColumn ... />
<GridViewColumn ... />
</GridViewColumnCollection>

if I do FindResource("Foo"), I get a GridViewColumnCollection, no problemo.

However, I'm using docking windows, and in a lot of situations, multiple windows share the same exact instance of MyUserCtrl.xaml and so they share the same exact instance of GridViewColumnCollection. This happens if I open multiple windows of the same type. Its a VisualTree optimization in docking windows.

So what happens is that if I resize a column in MyUserCtrl(instance 1), those values are shared across to MyUserCtrl(instance 2).

I could declare the GridViewColumns in code, but setting up all the properties, bindings, etc. is a PITA.

Is there a way to say "give me a new instance of Foo?

GridViewColumnCollection unfortunately does not implement IClonable. GridViewColumnCollection and GridViewColumn are not serializable either, so I can't do that trick.

Doing a member wise copy seems like another PITA.

Surely there has to be a clever way to keep those columns defined in XAML and be able to copy them or get new instances?

SledgeHammer0124-Jun-11 18:30

24-Jun-11 18:30

Seems like it works if I break GridViewColumnCollection out into a seperate ResourceDictionary and just create new instances of that ResourceDictionary. Seems kinda cheezy though. If you have a better way, let me know.

Mark Salsbery24-Jun-11 18:35

24-Jun-11 18:35

You could use XamlReader[^] perhaps.

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

SledgeHammer0124-Jun-11 18:56

24-Jun-11 18:56

Hmm... looked good on paper Smile | :)

, but it wouldn't serialize my collection (of MyGridViewColumn : GridViewColumn items), because the class has some private members that aren't serializable. I tried marking them as NonSerialized, but XamlWriter still had a hissy fit.

Mark Salsbery24-Jun-11 19:00

24-Jun-11 19:00

Oh, I don't believe I saw the "My"s in your original post Smile | :)

Mark Salsbery
Microsoft MVP - Visual C++
Java | [Coffee]

SledgeHammer0124-Jun-11 19:21

24-Jun-11 19:21

Lol, this thing is fighting me every step of the way.

I thought I got it to work by breaking that GridViewColumnCollection out into a seperate ResourceDictionary and creating multiple instances of the ResourceDictionary... I do get new instances of the columns...

BUT...

1) GridView.Columns is not a DP and you can't bind to it...

2) You can't add a GridViewColumn to more then one GridViewColumnCollection or it throws an exception

So I have to copy the columns into an ObservableCollection<GridViewColumn>, then clear the original GridViewColumnCollection then add a DP to MyGridView that can be binded to.

I thought WPF & MVVM was supposed to simplify things Frown | :(