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• Delay in the implementation of text change in Statusbar control

  - by ehsan zeynali

  I have a function a time consuming operation that is done I want to start and end operations appear to be user (By statusbar control) But when performed function, both text executed at the end of function. (user can not sees "Start Operation ...") What solution do you recommend to me? private void btnUpdateDataBase_Click(object sender, RoutedEventArgs e) { TextBlockStatus.Text = "Start Operation ..."; //Time consuming operation TextBlockStatus.Text = "End Operation ..."; }

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• Emailing a fixed document through Outlook

  - by MoominTroll

  I've added functionality to an application that prints out a bunch of information to a FixedDOcument and sends this off to the printer. This works just fine, however the request is that there be an in application function that emails the document using OUtlook and its here that I come unstuck. I'd very much like to just reuse the class that makes the fixed document for printing to generate the text for email, but I'm struggling to do this. I've tried the following... Microsoft.Office.Interop.Outlook.Application oApp = new Microsoft.Office.Interop.Outlook.Application(); MailItem email = (MailItem)(oApp.CreateItem(OlItemType.olMailItem)); email.Recipients.Add("[email protected]"); email.Subject = "Hello"; email.Body = "TEST"; FixedDocument doc = CreateReport(); //make my fixed document //this doesn't work, and the parameters it takes suggest it never will email.Attachments.Add(doc, OlAttachmentType.olByValue, 1, null); email.Send(); I can't help but think I'm on completely the wrong tack here, but I don't really want to have to write a bunch of new text formatting (since email.Body only takes a string) when I've already got the content formatted how I want it. Note that the content is all textual, so I don't really care if it gets sent as an attachment or as text in the emails body. Ideally if its sent as an attachment it won't be saved anywhere permanently. Any pointers?

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• Fill all avaible space.

  - by Neir0

  Hi! I have a xaml code: <Grid> <WrapPanel> <TextBox ></TextBox> <Button Content="GetIt" /> </WrapPanel> </Grid> How i can to get all avaible space for textBox? i want to do something like that: |[__________][GetIt]|

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• Convert user input into ToString() method inside FlowDocument in Workflow 4.0

  - by Jon Ownbey

  I have a Workflow 4.0 app that generates emails. In a dialog for creating the email body the user needs to be able to input some string value representing an existing wf instance variable to be inserted as a string at runtime. So they input something like: Email body text including <. (say ExistingVariable is an int or something like that) Any helpful hints for how to convert this text with a ToString() at runtime?

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• What should I use to replace the WinAPI Beep() function?

  - by Jon Cage

  I've got a Visual C++/CLI app which uses beeps to signify good and bad results (used when the user can't see the screen). Currently I use low pitched beeps for bad results and high pitched beeps for good results: if( goodResult == true ) { Beep(1000, 40); } else { Beep(2000, 20); } This works okay on my Vista laptop, but I've tried it on other laptops and some seem to play the sounds for less time (they sound more like clicks than beeps) or the sound doesn't play at all. So I have two questions here: Is there a more reliable beep function? Is there a (simple) way I can play a short .wav file or something similar instead (preferred solution).

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• how to generate an N level tree using datatable?

  - by Kishore Kumar

  I have a DataTable with column ID, Name, RootID. The tree stucture is implmented using the RootId field. If the RootId is null it is considered as Root Node. How to create an Nlevel tree using the DataTale. eg. 1 Manager null, 2 Project Lead 1, 3 Test Lead 1, 4 Sr Soft Eng 2, 5 Soft eng 2, 6 HR Manager Null, 7 HR exec 6, ......

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• How to get dynamic value from View in ViewModel?

  - by Benny

  I am coming across a scenario where I need to do something in the viewmodel according to the current selection in the view, but according to MVVM, the view model should not know about the existence of view, then how can i get the dynamic selection in the view?

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• form resizing and mazimizing problem

  - by shraddha

  my form gets the black effect while resizing or maximizing the form i want to remove that black screen effect can someone help in that

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• Is there a way to find out which elements a certain element overlaps?

  - by Justin

  I have a custom canvas that allows elements to be dragged. However I do not want to allow elements to overlap.

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• Add Controls to GroupBox which was created dynamically

  - by phil13131

  I add GroupBoxes to an ItemsControl dynamically using: string name_ = "TestName", header_ = "TestHeader" GroupBox MyGroupBox = new GroupBox { Name = name_, Header= header_, Width = 240, Height = 150, Foreground=new SolidColorBrush(Color.FromArgb(255, 0, 0, 0)) }; MyItemsControl.Items.Add(MyGroupBox); Now I need to add content to this GroupBox, like a few TextBlocks created like: TextBlock MyTextBlock = new TextBlock {Text = "test"}; But I can't figure out how to do that. Normally to a Grid or something like that I would just use .Children.Add(MyTextBlock), but that doesn't work here. Also I have to be able to remove specific Items from the ItemsControl again (best would be by the name of the Item, name_ in this example).

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• disabling a window

  - by Arno Greiler

  In my application I have a button. If the button is clicked as select against a database is executed and the result is shown in a ListView. As the select is quite complex, it takes some time to retrieve the data. When I click the Button, the Application-Window should be disabled until the data is loaded. But when I set the IsEnabled-Property of the Window to false, the Window gets disabled after the data is loaded. I tried to disable the Window in an other thread with a BackgroundWorker. But then I get an exception that the Window is alreay in use by an other thread. How can I disable the Window bevore it retrieves the data?

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• How do XAML files associate with cs files?

  - by LLS

  It seems that XAML files should have corresponding .cs files in a C# project. I know Visual Studio does all the things for us. I'm just curious how they are linked together? I mean, are they specified in the project file, or just because they have the same names? And also, App.xaml file specifies the startup file, but how does the compiler know? Is it possible to appoint another file other than App.xaml to do the same things as App.xaml does?

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• How can I make a numerical value for a taskbar icon in C#?

  - by Waffles

  I'm trying to find a way to display the current processor time of an application to the user via the taskbar when my application is minimized. For reference, I want something like what is implemented in Coretemp, where if you minimize the application, you can still see the temperature of the computer processor cores in the taskbar. Does anyone know of how this is done in C#?

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• sqlite3 not found but it was already added as reference

  - by Joef Clarin

  System.DllNotFoundException was unhandled Message=Unable to load DLL 'sqlite3': The specified module could not be found. I already reference the DLL. I check it on Debug folder and it was there. I also search how to "include" it in the project but they don't specifically explain how to do it. I'm following this example: http://www.codeproject.com/Articles/22165/Using-SQLite-in-your-C-Application

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• Canvas background for retrieving color

  - by urema

  Hi, I have a canvas with a background set to be lineargradientbrush....how do I then extract the color from this background at a particular mouse point (x,y)? I can do this with a BitmappedImage fine...as this deals with pixels, not sure about a canvas though... Thanks greatly in advance, U.

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• Tag Property Length

  - by Asim Sajjad

  What is maximum lenght of the Tag property of the control

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• MVVM:How am I supposed to convert a ViewModel into a Model ?

  - by msfanboy

  Hello, everyone speaks about wrapping a model by a viewmodel. fine so far. But when I want persist my Model, how do I convert a ViewModel into a Model ? Reading all properties from the ViewModel into a new Model object seems very cumbersome. Any better method?

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• Access SurfaceWindow from TagVisualization

  - by Rajen

  Hi, I'm looking for an easy way to access my main SurfaceWindow from a TagVisualization that I have. The scenario is that I want to pass along data from my TagVisualization back to the SurfaceWindow. Is there an easy way to do this? Thanks

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• Use AttachedProperty in Style in ControlTemplate

  - by Andrey

  Here is my simple app: <Window x:Class="WpfApplication1.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:app="clr-namespace:WpfApplication1" Title="Window1" Height="300" Width="300"> <Window.Resources> <Style x:Key="Test"> <Setter Property="Button.Template"> <Setter.Value> <ControlTemplate> <Border BorderBrush="Blue" BorderThickness="3" Background="Black" CornerRadius="{Binding app:Extras.CornerRadius}" > </Border> </ControlTemplate> </Setter.Value> </Setter> </Style> </Window.Resources> <Grid> <Button Height="23" HorizontalAlignment="Left" Margin="29,26,0,0" Name="button1" VerticalAlignment="Top" Width="75" app:Extras.CornerRadius="10" Style="{StaticResource Test}" >Button</Button> </Grid> </Window> Here is my AttachedPropery: namespace WpfApplication1 { public class Extras { public static readonly DependencyProperty CornerRadiusProperty = DependencyProperty.RegisterAttached( "CornerRadius", typeof(double), typeof(Button), new FrameworkPropertyMetadata(1.0d, FrameworkPropertyMetadataOptions.AffectsRender) ); public static void SetCornerRadius(UIElement element, double value) { element.SetValue(CornerRadiusProperty, value); } public static double GetCornerRadius(UIElement element) { return (double)element.GetValue(CornerRadiusProperty); } } } CornerRadius="{Binding app:Extras.CornerRadius}" this of course doesn't work. so how can I get value from here app:Extras.CornerRadius="10" thanks in advance!

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• How do I constrain a container's height to the height of a specific content element?

  - by Robert Rossney

  I'm trying to do something which seems like it should be extremely simple and yet I can't see how. I have a very simple layout, a TextBox with an image next to it, similar to the way it might look adorned with an ErrorProvider in a WinForms application. The problem is, I want the image to be no higher than the TextBox it's next to. If I lay it out like this, say: <Grid> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="Auto"/> <ColumnDefinition Width="Auto"/> </Grid.ColumnDefinitions> <TextBox Grid.Row="0" Grid.Column="0" MinWidth="100"/> <Image Grid.Row="0" Grid.Column="1" Source="error.png" /> </Grid> the row will size to the height of the image if the image is taller than the TextBox. This also happens if I use a DockPanel or StackPanel. The naive solution would be to bind the Height to the TextBox's ActualHeight. I'm sure this is wrong. But what's right?

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• Window sizing constraints by content

  - by EFraim

  I want the window to respect MinWidth/MinHeight and MaxWidth/MaxHeight specifications of the content control inside. Some suggested using SizeToContent, but this only helps to set the initial window size, not the constraints. Others suggested overriding MeasureOverride and setting window's Min/Max height and width there, but this seems to be somewhat unclean, considering that such a trivial problem should surely have a purely declarative solution. Just to mention another solution which seems reasonable but does not work (and had been previously mentioned in an answer which got deleted): binding MinWidth of the window to MinWidth of the control does not take into account window decorations.

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• How to read a Dependency property from a method

  - by PaN1C_Showt1Me

  XAML: <my:Control ItemsSource="{StaticResource MySource}" A="true" /> Assume a Control with a dependency property A with a default value false; and a method to handle the Source Collection: protected override void OnItemsSourceChanged(System.Collections.IEnumerable oldValue, System.Collections.IEnumerable newValue) {} in which you want to look at A and readout its value (which is true). how would you ensure, that A is already initialized and has a given value? Or how should this be done correctly ? In my case A is something like AllowLateBinding .. Could coerce callback help me?

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• How to set ItemsSource?

  - by Mark

  This dialog makes no sense to me And I'm having trouble finding good tutorials on it. Most of the examples aren't detailed enough, or do stuff via code, but I'd like to take advantage of the IDE as much as possible. Whats the difference between ItemsSource and DataContext? I'd like to bind it to just a List for starters. I don't need SQL or databases or anything fancy. Where would I declare my list? In MainWindow.xaml.cs? How do I get it to appear in that dialog?

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• progressbar not updating binding

  - by BoteRock

  I am trying to make a progress bar that updates when a property value changes I have followed other questions but i don't know what is wrong with it. This is XAML code: <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:WpfApplication1" x:Class="WpfApplication1.MainWindow" Title="MainWindow"> <Grid Margin="0,0,-8,1"> <ProgressBar Value="{Binding Progreso, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type local:MainWindow}}}" Margin="105,95,207,350"/> <Button Content="Button" Click="Button_Click" Margin="218,232,333,217"/> </Grid> </Window> it is basically a progress bar with the binding and a button with a listener that increases Progreso by 10 this is the C# code: public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); } public event PropertyChangedEventHandler PropertyChanged; protected void NotifyPropertyChanged(string sProp) { if (PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(sProp)); } } float progreso = 10; public float Progreso { get { return progreso; } set { progreso = value; NotifyPropertyChanged("Progreso"); } } private void Button_Click(object sender, RoutedEventArgs e) { this.Progreso = this.Progreso + 10; } } I tried to keep it simple but I couldn't get it to work, any help with this would be appreciated. edit: I've also tried UpdateSourceTrigger=PropertyChanged and that didn't work either

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• Wait for animation, render to complete - XAML and C#

  - by Adam S

  Hi all. I have a situation where I am animating part of my XAML application, and I need to wait for the animation AND rendering to complete before I can move on in my code. So far the tail end of my function looks like: ProcExpandCollapse.Begin(); while (ProcExpandCollapse.GetCurrentState() != ClockState.Stopped) { } } Which, in theory, will wait until the animation is finished. But it will not wait until the rendering is finished - the thread drawing the application might still not have re-drawn the animation. The animation is expanding a UIElement, and then the next part of my code uses it's rendered size to do some things. My question then is, how do I wait until my UI Element is re-rendered before moving on?

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