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Loading the history/journal of several pages at start-up alleyes13-Dec-10 3:50 alleyes 13-Dec-10 3:50  I would like to use the navigation controls that utilize the journal history of pages that are navigated to. I know normally I have to have the page navigated to first to enable the forward arrow because it needs a history or journal entry. Is it possible to load four pages at start-up so you can use the forward navigation button without actually navigating to those pages? The reason for this is I would like to not have to create additional buttons for forward or back navigation. My uses are a WPF wizard using PageFunctions as each page. The start-up class is of type NavigationWindow but always displays page 1 after start up. In other words there is no "launching" dialog as is found in many WPF wizard uses.. Thanks in advance. resources in navigation pages arkiboys12-Dec-10 23:35 arkiboys 12-Dec-10 23:35  I am using <navigation:Page for my silverlight pages. Where do I place the resources on this page? I have used usercontrols before and used to place the <usercontrol.Resources> inside the usercontrol page. But not sure where to place the resources if I use navigation pages. These navigation pages are created using silverlight page items in silverlight 4 Any thoughts please? thanks datagrid2 within datagrid1 arkiboys12-Dec-10 22:02 arkiboys 12-Dec-10 22:02  Hhi, In the following xaml, you see that I am showing the Address field when a row of datagrid is clicked on. Question: I have a datagrid2 which I would like to be placed instead of the Address field. At present I am using the event: datagrid1_RowDetailsVisibilityChanged to populate datagrid2 for the selected row in datagrid1 How do I replace the address field with the datagrid2 please? Can I place something like <datagrid2></datagrid2> instead of the <TextBlock Text="{}"... ? Thanks <data:DataGrid.RowDetailsTemplate> <DataTemplate> <Border> <Border> <TextBlock Text="{Binding Address}" TextWrapping="Wrap"></TextBlock> </Border> </Border> </DataTemplate> </data:DataGrid.RowDetailsTemplate> Re: datagrid2 within datagrid1 Abhinav S12-Dec-10 22:08 Abhinav S 12-Dec-10 22:08  This[^] may help. The funniest thing about this particular signature is that by the time you realise it doesn't say anything it's too late to stop reading it. My latest tip/trick Visit the Hindi forum here. Re: datagrid2 within datagrid1 arkiboys12-Dec-10 22:49 arkiboys 12-Dec-10 22:49  Not sure what you are referring to. Please explain. Re: datagrid2 within datagrid1 Abhinav S13-Dec-10 4:04 Abhinav S 13-Dec-10 4:04  Are you not looking for a datagrid within a datagrid? The funniest thing about this particular signature is that by the time you realise it doesn't say anything it's too late to stop reading it. My latest tip/trick Visit the Hindi forum here. Re: datagrid2 within datagrid1 arkiboys13-Dec-10 7:46 arkiboys 13-Dec-10 7:46  Yes Re: datagrid2 within datagrid1 Abhinav S14-Dec-10 3:30 Abhinav S 14-Dec-10 3:30  If not, then I have misunderstood your question. The funniest thing about this particular signature is that by the time you realise it doesn't say anything it's too late to stop reading it. My latest tip/trick Visit the Hindi forum here. ListView populating question Richard Andrew x6412-Dec-10 9:07 Richard Andrew x64 12-Dec-10 9:07  If I have a dynamically created OdbcDataReader, how do I hook it to the ListView in order to display the contents? I already have the columns defined, and I just want to display the records from the data reader. The difficult we do right away... ...the impossible takes slightly longer. Re: ListView populating question Richard Andrew x6412-Dec-10 16:01 Richard Andrew x64 12-Dec-10 16:01  I figured it out: Set the ListView.ItemsSource to the DataReader, and in XAML, set the Binding Path property of each column to its associated database field name. The difficult we do right away... ...the impossible takes slightly longer. Re: ListView populating question Mycroft Holmes12-Dec-10 18:02 Mycroft Holmes 12-Dec-10 18:02  Richard Andrew x64 wrote: Set the ListView.ItemsSource to the DataReader I would consider this dangerous as the data reader locks the connection to the database while it is in scope, therefore you should move your data to an List<> of objects and bind that list to the xaml. Your UI should be separated from your database object. Never underestimate the power of human stupidity RAH Re: ListView populating question Richard Andrew x6413-Dec-10 4:16 Richard Andrew x64 13-Dec-10 4:16  Thanks, I changed it to be just as you said. The difficult we do right away... ...the impossible takes slightly longer. pixels protected error domain geoderek9-Dec-10 11:35 geoderek 9-Dec-10 11:35  Hello, I have a silverlight application which is hosted within a WCF for purposes of getting at the data access layer. I am trying to convert a UI element on the silverlight side to an image using WriteableBitmap. However whenever I hit .pixels I get a protected error. Most of my research is telling me that this is a cross domain issue, but the WCF is hosted within the WCF and shouldn't that mean they are on the same domain. Thanks so much for any feed back you can give. Thanks, Derek Re: pixels protected error domain Abhinav S9-Dec-10 18:38 Abhinav S 9-Dec-10 18:38  You will need the client access policy or crossdomain file. The funniest thing about this particular signature is that by the time you realise it doesn't say anything it's too late to stop reading it. My latest tip/trick Visit the Hindi forum here. Re: pixels protected error domain geoderek12-Dec-10 5:08 geoderek 12-Dec-10 5:08  Hello, I do have these files on the root of the WCF project. And just to be sure I also put them in the root of inetpub www. But I still get the erro: "WriteableBitmap has protected content. Pixel access is not allowed." Is it possible that these files are not being utilized? Thanks, Derek Re: pixels protected error domain Abhinav S12-Dec-10 18:10 Abhinav S 12-Dec-10 18:10  geoderek wrote: Is it possible that these files are not being utilized? This might be a security issue. If you run this project with elevated permissions, it might work. The funniest thing about this particular signature is that by the time you realise it doesn't say anything it's too late to stop reading it. My latest tip/trick Visit the Hindi forum here. silverlight 4 - datagrid selectionchanged arkiboys9-Dec-10 4:45 arkiboys 9-Dec-10 4:45  How is it possible to stop the selectionchanged event to get fired the first time the grid is loaded with data? Re: silverlight 4 - datagrid selectionchanged #realJSOP9-Dec-10 23:46 #realJSOP 9-Dec-10 23:46  Set up a way to eat the event during databinding? .45 ACP - because shooting twice is just silly ----- "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997 ----- "The staggering layers of obscenity in your statement make it a work of art on so many levels." - J. Jystad, 2001 Re: silverlight 4 - datagrid selectionchanged arkiboys10-Dec-10 1:26 arkiboys 10-Dec-10 1:26  Not sure what else to do as I have tried -= and += Any further thoughts please? Re: silverlight 4 - datagrid selectionchanged Mycroft Holmes9-Dec-10 23:54 Mycroft Holmes 9-Dec-10 23:54  A slightly more detailed response with the same concept that JSOP offered. Set a bool (bLoading) in the constructor of the view in the event check for the bool setting and ignore if bLoading == true set bLoading to false at the end of the constructor. Caveat I do this in winforms and assume it works in SL, I have not yet needed it in SL Never underestimate the power of human stupidity RAH Re: silverlight 4 - datagrid selectionchanged arkiboys10-Dec-10 1:29 arkiboys 10-Dec-10 1:29  That will not work because the onstructor only gets called once. Re: silverlight 4 - datagrid selectionchanged Mycroft Holmes10-Dec-10 12:05 Mycroft Holmes 10-Dec-10 12:05  Then you need to locate the method that populates the grid, probably the onchange event on your list and use the same logic. Never underestimate the power of human stupidity RAH Re: silverlight 4 - datagrid selectionchanged arkiboys10-Dec-10 22:26 arkiboys 10-Dec-10 22:26  The section which populate sthe grid is in the load events. Please look at my earlier post to see the code events I am using. Still having t he same problems... datagrid issue [modified] arkiboys9-Dec-10 3:13 arkiboys 9-Dec-10 3:13  I am working on an existing silverlight 4 application. main page is MainPage.xaml This page has a main datagrid i.e. datagrid1 and another datagrid i.e. datagrid2 which is inside the datagrid1. When the application is run, the datagrid1 is populated with data. Everytime you click on a row in datagrid1, then the datagrid2 is shown and is loaded with data. Problems is everytime the datagrid1 is loaded, i.e. when th emainpage.xaml is run, then datagrid2 gets shown in the first row of datagrid1. How can I stop the datagrid2 being shown when the mainpage.xaml is loaded? I think somehow I have to get the -= and += code to work. You see them above where they are commented because they do not compile. Any thoughts please? for datagrid1 I am using the following events with codes inside them: private void datagrid1_Loaded(object sender, RoutedEventArgs e) { //this.datagrid1.SelectionChanged -= new EventHandler(this.datagrid1_SelectionChanged); this.DataContext = ((MainPage)(Application.Current.RootVisual)).GetData; //this.datagrid1.SelectionChanged -= new EventHandler(this.datagrid1_SelectionChanged); } private void datagrid1_SelectionChanged(object sender, SelectionChangedEventArgs e) { if (datagrid1.RowDetailsVisibilityMode == DataGridRowDetailsVisibilityMode.Collapsed && e.RemovedItems.Count == 1) datagrid1.RowDetailsVisibilityMode = DataGridRowDetailsVisibilityMode.VisibleWhenSelected; } private void datagrid_RowDetailsVisibilityChanged(object sender, DataGridRowDetailsEventArgs e) { if (e.Row.DetailsVisibility == Visibility.Collapsed) return; if (e.Row.DataContext is myservice.myData) { //retrieve data } } Thanks modified on Thursday, December 9, 2010 9:49 AM image control - dynamic load image from the resource file Yanshof9-Dec-10 2:27 Yanshof 9-Dec-10 2:27  I create in the code some image control and i want to set on this image control some of the picture that i saved ( load those pictures before creating the image control ) How can i do it ?

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