databinding

Binding to an ObservableCollection attached property.

I want to create an attached property of type ObservableCollection<Notification> and bind it to a property of the same type on the DataContext. Currently I have: internal static class Squiggle { public static readonly DependencyProperty NotificationsProperty = DependencyProperty.RegisterAttached( "Notifications", ty...

How can I make a list in a Repeater Section?

I need to create a repeater section that will show 4 columns - First Name, Last Name, a link based off of stored column data that says. All the data plus some extra not being used is in a players profile. How do I link the data on the code-behind to the repeater control with the databinders? I am using visual studio 2008, VB.NET for ...

Binding to element in WPF: can the Path expression do math?

Hi I'm trying to bind a control to the parent's Height/width property using ElementName and a Path. However, I don't want to bind to the actual height, but to exactly half the height. Can the Path expression do the math? e.g. Path={ActualHeight/2} I couldn't find a way to do that. IS there any other clever approach? Thanks! ...

Populate a combo box with one data tabel and save the choice in another.

I have two data tables in a data set for example lets say Servers: | Server | Ip | Users: | Username | Password | Server | and there is a foreign key on users that points to servers. How do I make a combo box that list all of the servers. Then how do I make the selected server in that combo box be saved in the data set in the Server...

lambda expression for a query on two tables that returns records from one table

I have two tables TableA (articles) int id int Type string name and TableB (compatibles) int linked_ID int tableA_ID TableA records: id=1, Type=0, name="ArticleA" id=2, Type=1, name="ArticleB" id=3, Type=2, name="ArticleC" id=4, Type=1, name="ArticleD" TableB records: linked_ID= 1, tableA_ID=2 linked_ID= 1, tableA_ID=3 linked_ID= 1...

Chain of DataBinding

Hello I am trying to do follow DataBinding Property -> DependencyProperty -> Property But i have trouble. For example, We have simple class with two properties implements INotifyPropertyChanged: public class MyClass : INotifyPropertyChanged { private string _num1; public string Num1 { get { r...

Flex - Data binding not working...

Hi! I'm having some troubles with binding data. I have an application that contains a viewstack of components. Let's say I have comp1, comp2 and comp3 inside the viewstack. Each component, has its own data class --> comp1Data.as, comp2Data.as and comp3Data.as. All values in each component are binded to the corresponding data in it's da...

C# Entity Framework and refreshing listBox after insert

Hi, i have a problem with this code: public partial class KnihovnyForm : Form { DatabazeEntities db; public KnihovnyForm() { InitializeComponent(); db = new DatabazeEntities(); knihovnyListBox.DataSource = db.Knihovny; knihovnyListBox.DisplayMember = "Nazev"; } protected override v...

How to access empty ASP.NET ListView.ListViewItem to apply a style after all databinding is done?

We're using a ListView with a GroupTemplate to create a three-column navigation menu with six items in each column, filling in two non-data-bound rows in the last column with an EmptyItemTemplate that contains an empty HTML list item. That part works fine, but I also need to programmatically add a CSS class to the sixth (last) item in ea...

Databinding to the DataGridView (Enums + Collections)

I'm after a little help with the techniques to use for Databinding. It's been quite a while since I used any proper data binding and want to try and do something with the DataGridView. I'm trying to configure as much as possible so that I can simply designed the DatagridView through the form editor, and then use a custom class that expos...

How can I fix "Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control."

I have a user control (ascx) that I have added two public properties to: RequestTypeId and GroupId. Both have the Bindable(True) attribute set. In my aspx page, I have a ListView, and in the ItemTemplate, I place my control reference, like so: <asp:ListView ID="lv" runat="server"> <LayoutTemplate> <asp:PlaceHol...

how to populate different records in row of a Grid?

Helo, I have a two Grid where I have to display some records from the table. The table consists of employee names ,manager names and their comments. Now on the first gird I am fetching data of employee names. Now on the second grid I have to display data of manager names and their comments. The data is on the same table. On show button o...

WPF - Binding an ObservableCollection Dependency Property within a UserControl

I have a control class DragGrid : Grid { ... } which inherits from the original grid and enables dragging and resizing its child elements. I need to bind a custom DP named WorkItemsProperty to an observable collection of type WorkItem (implements INotifyPropertyChanged). Each element in the grid is bound to a collection item....

Custom UserControl property not being set via XAML DataBinding in Silverlight 4

I have a custom user control called GoalProgressControl. Another user control contains GoalProgressControl and sets its GoalName attribute via databinding in XAML. However, the GoalName property is never set. When I check it in debug mode GoalName remains "null" for the control's lifetime. How do I set the GoalName property? Is there so...

WPF UserControls - setting the .Command property on button inside UserControl

I've got a UserControl that contains a button and some other controls: <UserControl> <StackPanel> <Button x:Name="button" /> ... </StackPanel> </UserControl> When I create a new instance of that control, I want to get at the Button's Command property: <my:GreatUserControl TheButton.Command="{Binding SomeCommandHere}"> <...

Alternative to FindAncestor RelativeSource in Silverlight 4 to bind to a property of the page

Hi, FindAncestor RelativeSource only supports 'Self' and 'TemplatedParent', but I have to bind the width of a popup to the width of the page. Giving the page a name causes problems because sometimes it will throw exceptions saying a control with that name is already present in the visual tree. <Popup IsOpen="True" Width="{Bindi...

How to filter items in a ListBox based on a searched string

Hi all, I have a Windows Forms application (C#) containing a ListBox into which I have added some items (I'm not using a DataSource). I want to filter the items in the ListBox to show only items containing a string I'm searching for. I have done this by keeping a list of the original items and selecting matching items from that list ea...

Get invalid user input with a Spring typeMismatch error

I've implemented a ReloadableResourceBundleMessageSource in my Spring MVC application which I use to display prettier error messages for binding exceptions. The problem I'm having is that, due to a company policy, these errors must be displayed in the following format: [inputData] is not a valid [fieldName]. The field name is accessibl...

Bind DataGrid to Dictionary in ASP.NET

In ASP.NET, binding a DataGrid to a list of objects is super-easy. I end up with a row for each object in the list, and any cell in a given row is bound to a property of the corresponding object. However, suppose one of the properties of my object is a dictionary, and each is expected to contain a specific key. Is there any way to bin...

Calling a datatrigger for a radio button inside a datagrid

I have a datagrid with one column having a radio button. I want to set the GroupName when a certain condition is reached. Below is the code <Custom:DataGrid.Columns> <!-- ONLY ENABLED WHEN THE ITEM TYPE IS SINGLESELECT OR SINGLESELECT WITH ADDIOTIONAL DATA--> <Custom:DataGridTemplateColumn Ca...