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  • Date picker validation WPF

    - by developer
    How to apply validations to WPF datepicker toolkit? I want it to error out if invalid date is selected and in some case I have Arrival and Departure dates, so I want to validate it to see that the arrival date is not later than the departure date.

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  • Binding Dictionary<T> to a WPF ListBox

    - by Joan Venge
    Given a dictionary of <string, Drink>, how would you bind the dictionary.Values to a WPF ListBox, so that the items use the .Name property? struct Drink { public string Name { get; private set; } public int Popularity { get; private set; } public Drink ( string name, int popularity ) : this ( ) { this.Name = name; this.Popularity = popularity; } }

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  • WPF Radiobutton equivalent

    - by baron
    What is the WPF equivalent for WinForms radio button CheckedChanged? I have your basic 2 radio button set up, where when one is selected a textbox is enabled and when the other is selected it is disabled. For the time being I was using RadioButton_Checked, except, I set IsChecked true for one button in the xaml. When I reference the textbox in that Checked method it throws NullReferenceException... Let me know if you need code.

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  • WPF - Query string parameters on page

    - by Troy
    I am very new to WPF and have what appears to be a simple question: I have a Frame and I set the Source to the Uri of one of my pages. I want to pass some query string parameters to the page, but I am not sure how to access them in the Loaded event of the Page.

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  • Prevent scrollbars with WPF WebBrowser displaying content

    - by Kevin Montrose
    I'm using the WPF WebBrowser component to display some very simple HTML content. However, since I don't know the content size in advance, I'm currently getting scrollbars on the control when I load certain datasets. Basically, how can I force (or otherwise effect the equivalent of forcing) the WebBrowser to expand in size so that all content is displayed without the need for scrollbars?

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  • WPF drag distance threshold

    - by justin984
    I have a program with two WPF treeviews that allow dragging and dropping between the two. The problem is, it can be annoying to open / close items on the treeviews because moving the mouse just one pixel while holding the left mouse button triggers the drag / drop functionality. Is there some way to specify how far the mouse should move before it's considered a drag / drop? Thanks!

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  • WPF: Binding to commands in code behind

    - by sofri
    Hi, I have an WPF Microsoft Surface Applikation and I'm using MVVM-Pattern. I have some buttons that are created in code behind. And I would like to bind commands to them but I only know how that works in the XAML like this: <Custom:SurfaceButton Command="{Binding SaveReservationCommandBinding, Mode=OneWay}"/> But I cannot do it like this because my buttons do not exist in the XAML, only in the code behind. So how would a command binding like that works in code behind?

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  • WPF Timeline Control

    - by Sam Tr
    Hi, I am looking for a WPF Timeline User Control. I have checked out Blendables Timeline and Animated Timeline control from IdentityMine, but it is rather basic and buggy. I am looking for a timeline control that is similar to the MIT Similie timeline. http://www.simile-widgets.org/timeline/ What i need to be able to do is add interactive objects to the timeline, for example video, images, etc. Any ideas? Cheers

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  • Expression blend for WPF 4 release date

    - by OffApps Cory
    I understand that Visual Studio 2010 is being released 12 April, but does anyone know when Expression Blend for .NET and WPF 4 is being released? I have the beta, but it is pretty buggy and it crashes a lot. I have not had much luck searching for the release date, so any help would put my mind at ease. Cory

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  • Richtextbox wpf binding

    - by Alex Maker
    To do DataBinding of the Document in a WPF RichtextBox, I saw 2 Solutions so far, which are to derive from the RichtextBox and add a DependencyProperty, and also the solution with a "proxy". Neither the first or the second are satisfactory. Does somebody know another solution, or instead, a commercial RTF control which is capable of DataBinding? The normal Textbox ist not an alternative, since we need text formating. Any idea?

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  • Image sliding control using wpf

    - by Geetha
    Hi All, I want to create a slider with images like youtube(floating images with left and right navigation button). How i have to start. i am new to wpf. for example: http://blog.wpfwonderland.com/page/4/ Geetha.

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  • add data to column series in wpf C#

    - by Archana R
    Hello, I want to create a ColumnSeries Bar Chart in WPF using C#. I shall extract the data from the database and want to bind it to the bar chart. The data extracted will contain two values. First is parameter name(string) and the other is its value(double). Which type of collection shall i use? and how to do the binding? Thanks in advance.

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  • Preventing a WPF Expander from expanding when header is clicked

    - by emddudley
    How can I prevent a WPF Expander from expanding when its header is clicked? I would like my Expander to expand or collapse only when the expand button itself is clicked. I imagine the answer has something to do with canceling a bubbled event. If possible I would like to implement the solution in XAML while avoiding retemplating the entire Expander.

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  • wpf: getting combobox value

    - by Martin
    I have a WPF ComboBox named cbFileSize. I try to get is selected value like so: string tmp = cbFileSize.SelectedValue.ToString(); MessageBox.Show(tmp); But tmp gets set to "System.Windows.Control.ComboBoxItem: 16". Which function should I use to just get the value "16"?

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  • LineChart in WPF

    - by Maurizio Reginelli
    I havo to implement a custom control in WPF which contains a line chart. This control should permit to an user to define, with a control template, the number of grids, the font family and the font size of axis labels and other parameters. I'm wondering if one of you can address me to an example or give me some advice. Thank you in advance.

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