databinding

Binding the position and size of a UserControl inside a Canvas in WPF

Hi. We need to dynamically create (i.e. during runtime, via code-behind) UserControls and position them on a Canvas. We want to bind the position (Canvas.Left and Canvas.Top) and width of those sizable (!) and draggable (!) UserControls to a ObservableCollection<>. That measn when the user drags or resizes the control, the datasource get...

Adding rows to a data-bound DataGridView [Winforms]

I want to bind a table from a database to a DataGridView, but I want to also add one more row with a sum of the values in the columns with indexes 3,4,7,8,9... How can I do that? Thanks! DataTable table1 = new DataTable(); double brutoUkupno1 = 0; double porezUkupno1 = 0; double doprinos...

Combine master-detail databinding

I have created data sources from my objects in my project, some of which have other objects as members. When I want to bind a some objects to a data grid I would like to display some of the values from the member objects in the data grid as well but the examples I have come across seem to use an entire other datagrid or controls to displ...

Why can't I Bind a viewmodel property to a dependency property of a custom control

I want to use a color picker in my wpf application and I saw a nice looking one on this codeproject page. The control works fine until I want to connect the control to a viewmodel. I created a small test program with this viewmodel: public class ColorViewModel : ViewModelBase { public ColorViewModel() { LineColor = Brush...

WPF Databinding thread safety?

Well lets say i have an object that i databind to, it implements INotifyPropertyChanged to tell the GUI when a value has changed... if i trigger this from a different thread than the GUI thread how would wpf behave? and will it make sure that it gets the value of the property from memory and not the cpu cache? more or less im asking i...

Access Parent DataItem in Nested ListView

Hi Everyone, So I've got two listviews; one nested inside the other. The parent is being bound to a collection of objects that contain fields such as MaxPrice, MinPrice, and SuggestedProducts. The nested one is being bound to the SuggestedProducts collection of the parent item. How could I reference MaxPrice and MinPrice in the nes...

Totally lost – data binding expressions inside GridView’s template

1) On aspx page we define GridView control named gvwPolls, and inside its template we define a user control named pollBox1 <asp:GridView ID="GridView1" DataSourceID="objPolls" ...> <Columns> <asp:TemplateField> <ItemTemplate> Question is : <%# Eval("QuestionText") %> <br /> <mb:Pol...

Silverlight templated Control databinding to custom properties

Is there some trick that I'm missing here? I've created a templated control, very simple. One single property on it, and I'd like to databind from the (viewmodel/datacontext of the) page in which it's hosted to a custom property on the control. The property will eventually be a vector type object, defining the position of the control, h...

Drawing a WPF UserControl with DataBinding to an Image

Hey Everyone, So I'm trying to use a WPF User Control to generate a ton of images from a dataset where each item in the dataset would produce an image... I'm hoping I can set it up in such a way that I can use WPF databinding, and for each item in the dataset, create an instance of my user control, set the dependency property that corr...

Cannot bind text field to selected item in JTable in NetBeans

I am trying to use NetBeans to bind a JTextField to the selected element of a JTable. The JTable gets its data from an AbstractTableModel subclass which returns Cow objects. At present, each Cow object is displayed as a String through its toString method. I am trying to bind the text property of the JTextField to the name property of ...

Flex Data Binding problem

<mx:Label text="{(item1 as INewsItem).displayName}"/> For the above code in Flex, I get this warning : : Data binding will not be able to detect assignments to item1. Why? How to Fix it? ...

DataBinding and ErrorProvider - How to provide custom error messages?

We use BusinessObjects, implementing IDataErrorInfo and IEditableObject. BindingLists with those Objects are added to BindingSources, those are used to bind UserControls and DataGrids on the forms (WinForms). The BindingSource is additionally set as DataSource to the ErrorProvider of the form. We do use currently TextBoxes for Propertie...

Edit dialog, with bindings and OK/Cancel in WPF

How can i have a dialog for editing the properties of a class with binding, and have OK-Cancel in the dialog? My first idea was this: public partial class EditServerDialog : Window { private NewsServer _newsServer; public EditServerDialog(NewsServer newsServer) { InitializeComponent(); this.DataContext = (_new...

Databinding combobox selected item to settings

I store user specified settings using application settings properties and databinding. It has been working fine, until i want user selected to font for combobox. Databinding between user settings and combobox not working. I want to store font family name. App.XML <Application.Resources> <ResourceDictionary> <properties:Setti...

How can I bind to a helper property in Silverlight

For the sake of argument, here's a simple person class public class Person : DependencyObject, INotifyPropertyChanged { public event PropertyChangedEventHandler PropertyChanged; public static readonly DependencyProperty FirstNameProperty = DependencyProperty.Register( "FirstName", ty...

MVVM Binding in Silverlight3 ItemsControl to get the parent controls DataContext

I have the following ItemsControl in Silverlight 3. <ItemsControl ItemsSource="{Binding ValueCollectionList}"> <ItemsControl.ItemTemplate> <DataTemplate> <Button x:Name="MyBtn" Height="40" Content="{Binding Name}" Tag="{Binding Value}" cmd:ButtonBaseExtensions.Command="{Binding ElementName...

Get binding target from source?

I have a ListView whose ItemsSource is bound to an ObservableCollection. The collection is filled with "WaypointItem" objects (a small class we defined with the info for the listview). The WaypointItem is our binding source for each row, but is there any magic way to get a reference to all objects (targets) binding to this class from wi...

Inherited properties aren't bound during databinding

I have two interfaces, IAuditable and ITransaction. public interface IAuditable{ DateTime CreatedOn { get; } string CreatedBy { get; } } public interface ITransaction : IAuditable { double Amount{ get; } } And a class that implements ITransaction, call Transaction. public class Transaction : ITransaction{ public ...

Silverlight Binding: User controls inside datagrid.

I have a DataGrid in my silverlight app that has a few columns. A couple basic columns bound with no issues. One column has a UserControl in it and the XAML is as follows: <data:DataGridTemplateColumn Header="" CanUserSort="True" Width="107"> <data:DataGridTemplateColumn.CellTemplate> <DataTemplate> <local:Stat...

WPF designer gives exception when databinding a label to a checkbox

I'm sure it's something stupid, but I'm playing around with databinding. I have a checkbox and a label on a form. What I'm trying to do is simply bind the Content of the label to the checkbox's IsChecked value. What I've done runs fine (no compilation errors and acts as expected), but if I touch the label in the XAML, the designer tro...