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Im required to create a wpf application which adds, edits, deletes, shows all, and filters information. i'm finding it really difficult to get a grasp, and to find any samples which would help me to understand the best approach.

Any advice or guidance would be greatly appreciated!

I am developing a paint kind of app. Having a class for ruler, defined as FrameworkElement
like below:
public class Ruler : FrameworkElement
how to call this in xaml / code
Hi Sir,
I have a scenario in my project to bind listbox Control which contains some textbox and stackpanel and while i am binding listbox control i need to change color of stackpanel inside it on basis of some condition. actually i have done it. but little problem when binding listbox and finding stackpanel on same event like button click .it does not show any control in listboxitem in visual tree to returning null and as soon as i put both thing on different event binding listbox and on other event finding control it works fine.
but i have to do it on same event. is there any other way. or can u tell me reason and solution for this.
pls respond on my Email (
hi,I created a class library and wpf application .and use entity framework for my the model.and copied the app.config from class library to wpf application but stil rais an error :

The specified named connection is either not found in the configuration, not intended to be used with the EntityClient provider, or not valid.
at System.Data.EntityClient.EntityConnection.ChangeConnectionString(String newConnectionString)
at System.Data.EntityClient.EntityConnection..ctor(String connectionString)
at System.Data.Objects.ObjectContext.CreateEntityConnection(String connectionString)
at System.Data.Objects.ObjectContext..ctor(String connectionString, String defaultContainerName)
at DataAccessLibrary.Entities..ctor() in D:\wpf test\SolutionMain\Solution_30\DataAccessLibrary\Model1.Designer.cs:line 34

please help me.
I don't know what should I do.
Need to update the IsChecked property of a checkbox in a wpfc datagrid while the programm is running.
The checkbox is generated automatically depending on the number of files that the folder contains, and for each file is created a Cbx, then after the file is processed i'd like to update the Ischecked property of the checkbox.
I need to implement a school management system using WPF with C# in a modular fashion to allow for extensibility in the future .
how to acess an ellipse within a Style. need to change its datacontext but cant
How would i bind a Colour Pickers SelectedColour Property on a Settings Window with an Ellipse Fill on MainWindow? Mine wont bind at all.. :(
I'm using a Colour Picker on a Settings Window. I wish to Bind the Resulting 'SelectedColor' with an EllipseFill on MainWindow. How would i go about doing this? I've having real trouble...

Thanks in advance!
I simply want to know one question answer.

Q: In InkCanvas i have some uielements as childrens. uielements have events like , uielement_mousedown, uielement_mouseup etc.

Now am in inkcanvas ink mode.

Being in ink mode can i fire uielement_mousedown, uielement_mouseup events ?