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  • Silverlight RelativeSource of TemplatedParent Binding within a DataTemplate, Is it possible?

    - by Matt.M
    I'm trying to make a bar graph Usercontrol. I'm creating each bar using a DataTemplate. The problem is in order to compute the height of each bar, I first need to know the height of its container (the TemplatedParent). Unfortunately what I have: Height="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Height, Converter={StaticResource HeightConverter}, Mode=OneWay}" Does not work. Each time a value of NaN is returned to my Converter. Does RelativeSource={RelativeSource TemplatedParent} not work in this context? What else can I do to allow my DataTemplate to "talk" to the element it is being applied to? Incase it helps here is the barebones DataTemplate: <DataTemplate x:Key="BarGraphTemplate"> <Grid Width="30"> <Rectangle HorizontalAlignment="Center" Stroke="Black" Width="20" Height="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Height, Converter={StaticResource HeightConverter}, Mode=OneWay}" VerticalAlignment="Bottom" /> </Grid> </DataTemplate>

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  • command binding for ribbon control

    - by kartik
    I'm trying to use the Microsoft ribbon control programatically using C#. Everything is fine but I'm unable to bind the command through the RibbonCommand. Can anyone give me an example of how to do this? My actual code is: Ribbon rbn = new Ribbon(); RibbonTab file = new RibbonTab(); file.Name = "file"; file.Label = "FILE"; RibbonTab edit = new RibbonTab(); edit.Name = "edit"; edit.Label = "Edit"; RibbonGroupPanel rbgp = new RibbonGroupPanel(); RibbonGroup rbg = new RibbonGroup(); RibbonButton rbtn = new RibbonButton(); rbtn.Content = "New"; RibbonCommand rcomnd = new RibbonCommand(); rcomnd.LabelTitle = "NEW"; rcomnd.ToolTipDescription = "THIS IS NEW"; rcomnd.LargeImageSource = imgSource; rcomnd.Execute(rbtn, rbtn); rbtn.IsEnabled = true; //rcomnd.SmallImageSource = imgSource; rcomnd.CanExecute +=new CanExecuteRoutedEventHandler(rcomnd_CanExecute); rcomnd.Executed +=new ExecutedRoutedEventHandler(rcomnd_Executed); CommandBinding cmdb = new CommandBinding(ApplicationCommands.New); cmdb.Command = ApplicationCommands.New; cmdb.Executed +=new ExecutedRoutedEventHandler(cmdb_Executed); CommandBind.Add(cmdb); //rcomnd.Executed += new ExecutedRoutedEventHandler(OnAddNewEntry);*/ rbtn.Click +=new System.Windows.RoutedEventHandler(rbtn_Click); rbtn.Command = rcomnd; But the bindings are not working and the button is not enabled.

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  • how does scrolling in android listview work?

    - by gartenkralleb
    hi, i have an android-app with a listview in an activity. the listview has, if i call it so, three data states. no data loaded from inet - only one dummy item is visible, saying that data is loading data is loaded and shown in list one listitem is clicked and now shows more information for this listitem (so it is increased in its height) on every state change (1 - 2, 2 - 3) i call notifyDataSetChanged() on this ListAdapater. this causes the listview to scroll down to the last item. this is ugly in the first transition and even more ugly in the second because the clicked list item is now out of focus. as i can see, this happens with a google g1 with android 1.6. a htc touch with the same sdk acts like desired (i try to figure it out with some more devices). to avoid this i tried to read out getScrollY() and set this value back. but this returns 0. the reason for this return value i already found on stackoverflow in other qutestions. does anyone else comes along with my problem so far? why does the listview scrolls to the last item? it was mentioned, that listview does keep track on the scroll position. but it seems that it does not in my case. or may i call the wrong refresh method? is notifyDataSetChanged the correct one?

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  • Android ViewFlipper + Gesture Detector

    - by Tim
    I am using gesture detector to catch "flings" and using a view flipper to change the screen when this happens. Some of my child views contain list views. The the gesture detector wont recognize a swipe if you swipe on the list view. But it will recognize it if it is onTop of TextView's or ImageView's. Is there a way to implement it so that it will recognize the swipes even if they are on top of another view that has a ClickListener?

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  • Title Background Wrapping

    - by laxj11
    Ok, I am pretty experienced at CSS but at this point I am at a loss. I layed out how I want the title to look like in photoshop: however, the closest I can approach it with css is: I need the black background to extend to the edges of the image and padding on the right side of the title. I hope you understand my question! thanks. here is the html: <div class="glossary_image"> <img src="<?php echo $custom_fields['image'][0]; ?>" /> <div class="title"> <h2><?php the_title(); ?></h2> </div> </div> and the css: .glossary_image { position: relative; height: 300px; width: 300px; margin-top:10px; margin-bottom: 10px; } .glossary_image .title { position: absolute; bottom: 0; left: 0; padding: 10px; } .glossary_image .title h2 { display: inline; font-family:Arial, Helvetica, sans-serif; font-size: 30px; font-weight:bold; line-height: 35px; color: #fff; text-transform:uppercase; background: #000; }

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  • Xceed DataGrid SelectedItem issue

    - by Patrick K
    In my project I have an Xceed data grid which is bound to a data source with many records and record details. I am attempting to create a context menu option that will allow the user to search for a specific detail in a specific column. While I have successfully completed the functionality there is a UI part that is giving me some trouble, in that when I select the row in C#, if that row is not in view the row is never focused on. Thus the user has to scroll up and down looking for the row with expanded details. I am able to set the SelectedRow and expand the details like so: this.grid.AutoFilterValues[userColumn].Clear(); this.grid.AutoFilterValues[userColumn].Add(userValue); if (this.creditLinesDataGridControl.Items.Count > 0) { this.grid.SelectedItem = this.grid.Items[0]; this.grid.ExpandDetails(this.grid.Items[0]); } else { MessageBox.Show("Value not found in column: " + userColumn); } this.grid.AutoFilterValues[userColumn].Clear(); where userColumn and userValue are set previously in the method. How can I make the grid focus on the row after I've set the SelectedItem and expanded the details? Thanks, Patrick

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  • css: image positioning problem

    - by Syom
    i want to have 12 images, which are scrolling via javascript.it works fine when i try vith 7 images, but if i put eighth image, it change the line, so the eigth image appears on the buttom than other. i try to set css: body { heigth:1500px; } but doesn't work. could you help me? thanks

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  • dynamic ContextMenu in TreeView vs. MVVM

    - by bitbonk
    I have a tree of ViewModels displayed as a TreeView (using HierarchicalDataTemplate). Each ViewModel instance has different commands that can be executed on it wich again are exposed as a list of command ViewModels for each item ViewModel. How can I create a single ContextMenu that opens at the TreeViewItem that was rightclicked and that populates its commands from the underlying item ViewModel's command ViewModels list? All in a decent MVVM fashion ...

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  • CultureInfo on a IValueConverter implementation

    - by slugster
    When a ValueConverter is used as part of a binding, one of the parameters to the Convert function is a System.Globalization.CultureInfo object. Can anyone tell me where this culture object gets its info from? I have some code that formats a date based on that culture. When i access my silverlight control which is hosted on my machine, it formats the date correctly (using the d/MM/yyyy format, which is set as the short date format on my machine). When i access the same control hosted on a different server (from my client machine), the date is being formatted as MM/dd/yyyy hh:mm:ss - which is totally wrong. Coincidentally the regional settings on the server are set to the same as my client machine. This is the code for my value converter: public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { if (value is DateTime) { if (parameter != null && !string.IsNullOrEmpty(parameter.ToString())) return ((DateTime)value).ToString(parameter.ToString()); else return ((DateTime)value).ToString(culture.DateTimeFormat.ShortDatePattern); } return value; } basically, a specific format can be specified as the converter parameter, but if it isn't then the short date pattern of the culture object is used.

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  • ListBox SelectedItems Binding

    - by Polaris
    I want to bind Listbox selectedItems to array. But .NET throw exceprion in runtime. d.SetBinding(ListBox.SelectedItemsProperty, new Binding { Source = SomeArray }); Where "d" some ListBox from XAML. Exception: Selected Item cannot be bound. Why?

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  • How do I move an image (ImageView) in AbsoluteLayout to X Y [android]

    - by Maneesh
    my main.xml look like this: <AbsoluteLayout android:id="@+id/AbsoluteLayout01" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android"> <ImageView android:layout_height="wrap_content" android:layout_x="247dip" android:layout_width="wrap_content" android:layout_y="96dip" android:id="@+id/Ball" android:src="@drawable/ball"/> </AbsoluteLayout> And Java ball = (ImageView) findViewById(R.id.Ball); How do I do if I whant to move the ball from x=247dip y=96dip to x=100 and y=100 while my app is running?

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  • LINQ to Entities exceptions (ElementAtOrDefault and CompareObjectEqual)

    - by OffApps Cory
    I am working on a shipping platform which will eventually automate shipping through several major carriers. I have a ShipmentsView Usercontrol which displayes a list of Shipments (returned by EntityFramework), and when a user clicks on a shipment item, it spawns a ShipmentEditView and passes the ShipmentID (RecordKey) to that view. I initially wrestled with trying to get the context from the parent (ShipmentsView) and finally gave up resolving to get to it later. I wanted to do this to keep a single instance of the context. anyhow, I now create a new instance of the context in my ShipmentEditViewModel, and query against it for the Shipment record. I know I could just pass the record, but I wanted to use the Ocean Framework that Karl Shifflett wrote and don't want to muck about writing new transition methods. So anyhow, I query and when stepping through, I can see that it returns a record, as soon as execution reached the point where it assigned the query result to the e.Result property, it throws up the following exception depending on the query I used. LINQToEntities Dim RecordID As Decimal = CDec(e.Argument) Dim myResult = From ship In _Context.Shipment _ Where ship.ShipID = e.Argument _ Select ship Select Case myResult.Count Case 0 e.Result = New Shipment Case 1 e.Result = myResult(0) Case Else e.Result = Nothing End Select "LINQ to Entities does not recognize the method 'System.Object.CompareObjectEqual(System.Object, System.Object, Boolean)' method, and this method cannot be translated into a store expression. LINQToEntities via Method calls Dim RecordID As Decimal = CDec(e.Argument) Dim myResult = _Context.Shipment.Where(Function(s) s.ShipID = RecordID) Select Case myResult.Count Case 0 e.Result = New Shipment Case 1 e.Result = myResult(0) Case Else e.Result = Nothing End Select LINQ to Entities does not recognize the method 'SnazzyShippingDAL.Shipment ElementAtOrDefault[Shipment] (System.Linq.IQueryable`1[SnazzyShippingDAL.Shipment], Int32)' method, and this method cannot be translated into a store expression. I have been trying to get this thing to display a record for like three days. i am seriously thinking about going back and re=-engineering it without the MVVM pattern (which I realize I am only starting to learn and understand) if only to make the &$^%ed thing work. Any help will be muchly appreciated. Cory

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  • CSS * {margin: 0;padding: 0;} override

    - by StealthRT
    Hey all, i am in need of some help with figuring out how to override the "* {margin: 0;padding: 0;}" in my css. The reason why is that i have this css: .postcomments { width: 547px; padding: 5px 5px 5px 5px; margin: 0 0 5px 0;} .postcomments a { text-decoration: underline;} .postcomments ul { margin: 0; padding: 0; list-style-type: none;} .postcomments ul li { width: 547px; margin: 0 0 5px 0; padding: 0; list-style-type: none;} .postcomments .right { color: #474747; font-size: 11px; background: #fff url('http://www.nextbowluser.com/img/ucBG.gif') no-repeat top left; line-height: 17px; padding: 5px 0 0 0; width: 430px; position: relative; float: right; min-height: 50px;} .postcomments .right .bottom { padding: 0 5px 15px 5px; background: #fff url('http://www.nextbowluser.com/img/ucBG.gif') no-repeat bottom right; min-height: 50px;} .postcomments .arrow { left: -15px; top: 20px; position: absolute;} .avatar { border: none !important;} .postcomments .left {float: left; margin: 0 7px 0 0;} .postcomments .gravatar { background: #fff; width: 80px; height: 60px; margin: 0 0px 0 0; padding: 3px;} .postcomments .name { font-size: 11px; margin: 2px 0 0 0; color: #000;} .avatar { border: none !important;} and it displays just fine WITHOUT the * {margin: 0;padding: 0;}: 1st comment 2nd comment 3rd comment However, when i add that to the CSS, it makes the comments stack wrong: 1st comment 2nd comment 3rd comment I would just take out the * {margin: 0;padding: 0;} but some other things on the page needs that in order for that to be displayed correctly. So my question is, how can i override the {margin: 0;padding: 0;} for just that postcomments part of the page? Thanks! :o) David

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  • watermark text css

    - by Hulk
    What is the css for the watermark text in a textarea or input box. The text should be opaque as in Title of stackoverflow saying "What's your programming question? Be descriptive" when asking question

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  • creating Linq to sqlite dbml from DbLinq source code

    - by Veer
    Hi All, I tried to create linq-to-sqlite dbml using DbLinq but in vain. Each time I get different type of errors. May be I'm somewhere wrong. Can anyone tell me the step by step procedure to create the dbml file from the Dblinq source code. Edit: Steps I Followed: I downloaded the source file from this link. Edited the "run_sqliteMetal.bat" file in \\DbLinq-0.19\src\DbMetal folder as 'DbMetal.exe -database:myDb.db3 -namespace:myNS -code:myCode.cs' -dbml:myDbml.dbml Tried to run the DbMetal project file to produce the executable but there was a runtime error since Options object in Parameters.cs was null. Hence downloaded the readymade exe file from this location Copied it into the \DbLinq-0.19\src\DbMetal folder Executed the "run_sqliteMetal.bat" file I got a blank screen and Windows Error Msg "DbLinq has stopped Working" Any help? Thanks in advance, Veer

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  • How does CommandManager.RequerySuggested work?

    - by Andrei Rinea
    The MSDN only states that Occurs when the CommandManager detects conditions that might change the ability of a command to execute. However I can't seem to find any traces of how this works, what I should be aware of / avoid etc... Does it just listen for input? (i.e.: mouse moves, keys pressed and so on)

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  • FloatableWindow resizes Grid in Silverlight

    - by Ben
    I'm trying to use Tim Heuer's FloatableWindow control for a non-modal options window in my Silverlight application. However, I'm running into a problem with the FloatableWindow resizing it's parent grid when it opens. For example, before I open the window the application looks like this: But after opening the window, the first row of the grid expands: I'm currently setting FloatableWindow.ParentLayoutRoot to the LayoutRoot grid in MainPage.xaml. Is this the right thing to do? How can I prevent the grid from resizing when the FloatableWindow opens?

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  • What is the standard convention for defining nested view:viewmodel mapping in MVVM Light

    - by firoso
    so in classic MVVM examples ive seen DataTemplate definitions are used to map up View Models to Views, what is the standard way to do this in MVVM Light framework, and where should the mappings be located? Following are examples of what I'm doing now and what I'm talking about, blendability is important to me! Main Window: <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" x:Class="STS2Editor.MainWindow" Title="{Binding ApplicationTitle, Mode=OneWay}" DataContext="{Binding RootViewModel, Source={StaticResource Locator}}"> <Window.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="Skins/ApplicationSkin.xaml" /> <ResourceDictionary Source="Resources/ViewMappings.xaml" /> </ResourceDictionary.MergedDictionaries> </ResourceDictionary> </Window.Resources> <Grid> <ContentControl Content="{Binding ApplicationManagementViewModel}" HorizontalAlignment="Left" VerticalAlignment="Top"/> </Grid> </Window> In the above code, my RootViewModel class has an instance of the class ApplicationManagementViewModel with the same property name: public ApplicationManagementViewModel ApplicationManagementViewModel {get {...} set {...} } I reference the ResourceDictionary "ViewMappings.xaml" to specify how my view model is represented as a view. <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:STS2Editor.ViewModel"> <DataTemplate DataType="{x:Type local:ApplicationManagementViewModel}"> <local:ApplicationManagementView/> </DataTemplate> </ResourceDictionary> should I be doing things like this using ViewModelLocator? what about collections of view models?

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  • problem with tabbed interface as mentioned in the article of josh smith

    - by Egi
    hello guys, i ve got a problem with my programm. here is the link: http://dl.dropbox.com/u/2734432/TabbedInterface.7z once u have opened both tabs, u ll start loosing the references to other collections of the current item in the view. that is because these ids are nullable and once you switch over to the other tab they ll become null. my question is why and how can i corrent that behavoir? if you change the int? to int there are no more problem, but i need them to be nullable!

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  • How can a separator be added between items in an ItemsControl

    - by Grandpappy
    I'm needing to display a list of numbers from a collection in an Items Control. So the items are: "1", "2", "3". When they are rendered, I need them separated by a comma (or something similar). So the above 3 items would look like this: "1, 2, 3". How can I add a separator to the individual items, without having one tacked on the end of the list? I am not stuck on using an ItemsControl, but that's what I had started to use.

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  • How can I use Window.ShowActivated = false with Maximized window?

    - by Anthony Brien
    I have an application that has a splash screen shown before I create my main window. I want to avoid the main window stealing the focus when it gets created if the user has focused another application while the splash screen was shown. My application's startup looks like this: private void Application_Startup(object sender, StartupEventArgs e) { SplashScreenService.Start(); // Initializing stuff... ... // Ready to open the main window. MainWindow mainWindow = MainWindow(); mainWindow.ShowActivated = SplashScreenService.HasFocus(); mainWindow.ShowDialog(); } To prevent the main window from getting activated, I'm setting Window.ShowActivated to false, only if the splash screen has lost the focus. But this causes an exception: InvalidOperationException: Cannot show Window when ShowActivated is false and WindowState is set to Maximized. Indeed, my MainWindow sets the WindowState to Maximized (restored from previous session settings). I don't understand why there is such a limitation with the ShowActivated feature. I couldn't find any documentation about this issue. I tried forcing WindowState to Normal when ShowActivated is false, and it prevents the exception, but it also activates the window! Maybe changing the window state actually causes an activation? Is there a trick I can use to work around this? I want to restore my main window in a maximized state, and not have the main window steal focus away from other applications if the user has focused away from my app during the splash screen.

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  • Async friendly DispatcherTimer wrapper/subclass

    - by Simon_Weaver
    I have a DispatcherTimer running in my code that fire every 30 seconds to update system status from the server. The timer fires in the client even if I'm debugging my server code so if I've been debugging for 5 minutes I may end up with a dozen timeouts in the client. Finally decided I needed to fix this so looking to make a more async / await friendly DispatcherTimer. Code running in DispatcherTimer must be configurable whether it is reentrant or not (i.e. if the task is already running it should not try to run it again) Should be task based (whether or not this requires I actually expose Task at the root is a gray area) Should be able to run async code and await on tasks to complete Whether it wraps or extends DispatcherTimer probably doesn't really matter but wrapping it may be slightly less ambiguous if you don't know how to use it Possibly expose bindable properties for IsRunning for UI

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  • TextBox, Button and ListBox in a ListBox

    - by Emil C
    I have a listbox with a bunch of contols in each list item. <ListBox x:Name="projectList" IsSynchronizedWithCurrentItem="True"> <ListBox.ItemTemplate> <DataTemplate> <StackPanel> <TextBlock Text="{Binding Name}" /> <ListBox x:Name="taskList" ItemsSource="{Binding Tasks}"> <ListBox.ItemTemplate> <DataTemplate> <StackPanel> <TextBlock Text="{Binding Name}" /> </StackPanel> </DataTemplate> </ListBox.ItemTemplate> </ListBox> <TextBox x:Name="textBoxTask" /> <Button x:Name="ButtonAddNewTask" Content="Test" CommandParameter="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=DataContext}" Click="ButtonAddNewTask_Click" /> </StackPanel> </DataTemplate> </ListBox.ItemTemplate> </ListBox> When I click on the button in the listbox i want to add a new item to the listbox within the listbox. I've come this far. So my question is how do I get hold of the textbox and how do I update the listbox? Here is my click event private void ButtonAddNewTask_Click(object sender, RoutedEventArgs e) { Button button = (Button)sender; Project proj = button.DataContext as Project; if(proj.Tasks == null) proj.Tasks = new List<Task>(); proj.Tasks.Add(new Task("Added Task")); } Thanx

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