Search Results

Search found 6134 results on 246 pages for 'wpf datatemplate'.

Page 178/246 | < Previous Page | 174 175 176 177 178 179 180 181 182 183 184 185  | Next Page >

  • Setting Frame.Content doesn't always work

    - by dan gibson
    I have a Frame control and I'm setting the Content property. If I set it twice, first to one control then to another, it shows the first control instead of the second. If I display a message box after setting it the first time then it works fine (ie it displays the second control). It's like I can only set Content once until the screen has been repainted. Calling Frame.UpdateLayout also doesn't help. What should I call after setting Content so that I can be sure that Content is actually set to what I specify?

    Read the article

  • 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).

    Read the article

  • connecting to multiple resources

    - by Dudu
    I would like to know if there is a way to connect to multiple resources: Specifically I have the following problem abstact class BaseClass { ObservableCollection<BaseClass>; } class GrandSonClass:BaseClass{} class SonClass:BaseClass{} class FatherClass:BaseClass { CollectionViewSource col = new CollectionViewSource ; col.Source = Items.SelectMany(p => p.Items); } FatherClass's Items are of ChildrenClass type, and ChildrenClass's Items are of GrandSonClass type; I want FatherClass to bind to all the GrandSonClass's items it possesses. The solution of using SelectMany is not good as I need this to be dynamically updated whenever FatherClass adds more Items and whenever its Items(SonClasses) add more Items. Now I could go on and write notifiaction events but I was wondering if there is a smarter way to do it -i.e. simply define the sources as the Items of each Item FatherClass posses

    Read the article

  • 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!

    Read the article

  • How can I get my UserControl to look like a ComboBox?

    - by NoLuke
    I have a user control containing a TextBox, ToggleButton and Popup, just like the real ComboBox. Now my problem is to style it so that it looks just like the normal ComboBox. In Blend, I can "Edit Template/Edit a Copy..." of a real ComboBox to get the bits and pieces I need to get it to look right. For one Windows theme (Aero). If the application is run on another theme (e.g Luna), the control does not change its look, it still has the Aero look. Do I have to supply a style/template for each Windows theme, or can I somehow get hold of (at run-time) the default ComboBox style and apply it to my UserControl? Instead of making a UserControl, I have tried modifying a real ComboBox to my needs, but I just couldn't get it to work. How can I replace ALL the logic of a ComboBox with my own?

    Read the article

  • 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, ......

    Read the article

  • 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?

    Read the article

  • 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

    Read the article

  • 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.

    Read the article

  • XML Reader threw Object Null exception, but node exists(?!)

    - by Capt.Morgan
    I am hoping someone could enlighten me as to why I am getting the annoying - "xml object reference not set to an instance .." error. The elements (nodes?) I am looking for seem to exist and I have not misspelled it either :[ I might be doing something stupid here, but any help at all would be greatly appreciated. My Code: private void button1_Click(object sender, RoutedEventArgs e) { XmlDocument reader = new XmlDocument(); reader.Load("Kotaku - powered by FeedBurner.xml"); XmlNodeList titles = reader.GetElementsByTagName("title"); XmlNodeList dates = reader.GetElementsByTagName("pubDate"); XmlNodeList descriptions = reader.GetElementsByTagName("description"); XmlNodeList links = reader.GetElementsByTagName("link"); for (int i = 0; i < titles.Count; i++) { textBox1.AppendText(Environment.NewLine + titles[i].InnerText); textBox1.AppendText(Environment.NewLine + descriptions[i].InnerText); //<<-- Throws Object Ref Null Exception textBox1.AppendText(Environment.NewLine + links[i].InnerText); textBox1.AppendText(Environment.NewLine + dates[i].InnerText); //<<-- Throws Object Ref Null Exception } } The XML I am using is a saved XML page from: http://feeds.gawker.com/kotaku/full The way I am working on it now is as follows: I have saved the page from the above link (which is an XML page) and put it next to my EXE for easier access. Then I run the code.

    Read the article

  • 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?

    Read the article

  • What exactly does Panel.IsItemsHost do?

    - by Armentage
    I cannot find any good documentation for the Panel.IstItemsHost attached property. I see plenty of examples of people setting it on the ItemsContainer template for an ItemsControl, but the un-documentation over at MSDN does not explain why or what advantages setting property confers. I have build plenty of containers that do NOT set this property, but have not yet noticed any ill effects.

    Read the article

  • 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?

    Read the article

  • Bind to several class properties

    - by Polaris
    Hello developers. I have some class with properties firstName and lastName. I want bind TextBlock to concatanation of this two properties. I know that I can create third property that will be return concatanation of these properties. But I dont want to use this approach. Is it possible to Bind TextBlock to two properties. and also I dont want create composite userControl.

    Read the article

  • 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).

    Read the article

  • 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?

    Read the article

  • 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#?

    Read the article

  • 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?

    Read the article

  • undesirable cropping of Label that has been rotated 90 degrees

    - by 108980470541437452574
    Hello, I am creating 2 columns. left column will show caption of the DataGrid which will be in right column. <Grid.ColumnDefinitions> <ColumnDefinition Width="20" /> <ColumnDefinition /> </Grid.ColumnDefinitions> <Label Grid.Column="0" Name="FilterLabel"> <Label.RenderTransform> <TransformGroup> <RotateTransform Angle="-90" /> </TransformGroup> </Label.RenderTransform> </Label> the problem here is that the lable gets rendered horizontally first, and cropped at 20 pixels. So after it has been rotated, only first few letters appear rendered in left column. as soon as i make the left column wider, more letters get rendered.

    Read the article

< Previous Page | 174 175 176 177 178 179 180 181 182 183 184 185  | Next Page >