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. ...
Hi All I have a TextBox that I allow my users to rotate. But what I would LOVE for my users is to have their Cursor rotate to the same angle that the TextBox was rotated at. For example, if they rotated the TextBox to 28°, then when the Cursor enters that TextBox the Cursor should also rotate itself to 28°. Any help at all will be grea...
I'm getting weird behavior with command propagation from MenuItems of ContextMenu. I have the following kind of layout: ContextMenu is set for each DataGridRow of DataGrid inside UserControl, which in its turn is inside DockableContent of AvalonDock. If I get rid of either docking or UserControl around my grid there are no problems. Lis...
Been trying to figure out, how do I capture the events from a listbox. In the template, I've added the parameter IsChecked="" which starts my method. However, the problem is trying to capture what has been checked in the method. SelectedItem only returns what is currently selected, not the checkbox. object selected = thelistbox.Selec...
I'll start off and say I am not using the MVVM pattern for my WPF app. Please forgive me. Right now I have a data template with two buttons, each binds to a different command on the CLR object this data template represents. Both use the same command parameter. Here's an example of the buttons. <Button x:Name="Button1" Command="...
I have a combobox where I want to display objects and have enum values returned. When first opened the combobox displays the items as supposed, but after a value is chosen it seems to disappear from the list. But if the combobox is active I can use the keyboard to navigate up and down between the other values, so they are in the list but...
is it possible to define resources in the style rather then using a template? <ListView.Resources > <Style TargetType="{x:Type ScrollBar}"> <Setter Property="Background" Value="Transparent" /> </Style> </ListView.Resources> How can I wrap this thing into: <Style TargetType="{x:Type ListView}...
I have a WinForms app that I recently re-wrote in WPF and I need to release to my end users. I'd like to be able to have the users go to the ClickOnce install point for the WPF application and have their WinForm application removed so they don't have both on their machine What's the best way (read: easiest for users) of accomplishing th...
I am writing a WPF app that has a combo box in it that is populated with a list of names. The problem I face is that the auto complete/intellisense feature ignores case sensitivity. Is there a property in the control or a work around to enable case sensitivity on the auto complete/intellisense. ...
Normally wpf objects inherits their parent's data context, so if you set a binding and theres no data context set, the binding engine it will automatically look for it in the parents. How can I make a custom class(that is not an UI element) to produce the same behavior when set as the child of another element? ...
I need to quickly build a report. In VS 2010 when I'm adding new item in the 'Reporting' brach there are 3 items: Report Wizard; Report; and Crystal Report I tried to play with the first one - couldn't find a way to get the data through existing entity model. Also I stupidly confused what's the real difference between 'Report' ...
Hi all, I have an problem and would like to know if it is common problem or jsut with me. I am using Wpf with Prism and Unity, all with the pattern MvvM. I am loading a viewModel that has a reference to a dropdown with few items, my idea is that each time that the user click in some place to open the view that has this dropdown is that...
I've seen quite a few examples of MVVM. I can see that the View should reference the ViewModel. I've seen recently an example of a ViewModel referencing a View, which seems wrong to me, as it would result in tighter coupling. Given that ViewModel is often described as an intermediary between the View and the Model, is there more to the V...
I have two datagrids side by side bound to different data tables and each with their own view. The datatables both have the same number of rows, and I want both grids to maintain the same scroll position. I am having trouble finding a way to do this using MVVM... anyone have any ideas? Thanks! -Steven ...
I'm trying to get the offset of a control relative to the top of its window, but I'm running into trouble when using the TransformToAncestor method of the control. Note: this code is in a value converter which will convert from a control to its relative Y position in relation to the window. public object Convert(object value, Type targe...
I'm having trouble binding a ComboBox to a foreign key in WPF using Linq To SQL. It works fine when displaying records, but if I change the selection on the ComboBox, that change does not seem to affect the property to which it is bound. My SQL Server Compact file has three tables: Players (PK is PlayerID), Events (PK is EventID), and ...
I have a custom built menu system in which I would like to load user controls from another project into a tab control on my main project (menu control) User control Project : foobar Menu system Project : Menu The function to load them into the tab control: private void LaunchWPFApplication(string header, string pPath) { ...
I am trying to add a extra column to a dataset after a query has completed and populate that new column with data. I have a database relationship of the following: EmployeeGroups / \ Groups Employees Empoyees holds all the data for that individual, I'll name the unique key the UserID. Groups holds all the ...
I have a TreeView control that I have created in XAML in a WPF program After adding a couple nodes at the root level, I have written code that loops through the tree structure like so: ItemCollection items = treeView1.Items; foreach (TreeViewItem n in items) { ... } Once I find the place in t...
I am building a WPF 4.0 Application using MVVM. The Model is generated using Entity Framework 4.0. I am using Data binding on the WPF to bind the user input to model properties. What is the easiest way to validate user input ? I prefer an approach where I can set the validation rules on the Model rather than on the WPF itself. How can t...