wpf

#region in XAML

I actually don't like #region in my code. BUT for some reason call me crazy, I would like to have them in my XAML. I would like whole sections to have a #region-like thing and collapse them (e.g. my <Window.CommandBindings>, <Grid.*Definitions>, <Menu>, <Toolbar>, etc.. Does this exist? If not, how about <RegionCollapse> ...

WPF/Silverlight DataBinding to interface property (with hidden implementation)

I have the following (C#) code namespace A { public interface IX { bool Prop { get; set; } } class X : IX { public bool Prop { ... } } // hidden implementation of IX } namespace B { .. A.IX x = ...; object.DataContext = x; object.SetBinding(SomeDependencyProperty, new Binding("Prop")); .. } So I have a hidden implementa...

How can I line up WPF items in a Horizontal WrapPanel so they line up based on an arbitrary vertical point in each item?

I'm trying to create a View in WPF and having a hard time figuring out how to set it up. Here's what I'm trying to build: My ViewModel exposes an IEnumerable property called Items Each item is an event on a timeline, and each one implements ITimelineItem The ViewModel for each item has it's own DataTemplate to to display it I want to ...

State Animation on ListBox ItemTemplate

I have a listbox which reads from Observable collection, and is ItemTemplate'ed: <DataTemplate x:Key="DataTemplate1"> <Grid x:Name="grid" Height="47.333" Width="577" Opacity="0.495"> <Image HorizontalAlignment="Left" Margin="10.668,8,0,8" Width="34" Source="{Binding ImageLocation}"/> <TextBlock Margin="56,8,172.334,8...

Set the caret/cursor position to the end of the string value WPF textbox

I am try to set the caret/cursor position to the end of the string value in my WPF textbox when I open my window for the first time. I use the FocusManager to set the focus on my textbox when my window opens. Nothing seems to work. Any ideas? Note, I am using the MVVM pattern, and I included only a portion of the XAML from my code. ...

WPF Expander Button Styled so it is inside Expander Header

I am using the expander control and have styled the header as shown in the picture below. The problem I have is that I want the expander button to be contained within the header so that the line for the end of the header template aligns with the Expander content i.e. I ultimatly want to end up with something similar to the image below...

.NET Database application guidance.

Hello, I'm stumbling in the data wilderness and feel very lost, so i am asking for help. I have done some database apps in VS (C#) winforms for some time, wpf lately. These are small to medium apps (embedded dbs, a bit of sql server), like a restaurants, cash registers and similar. (15-20 tables) Until now, i have done all my datasets b...

WPF DataTemplate Trigger set a property in a different DataTemplate

I have 2 DataTemplates (A & B). A contains an expander and the expander's HeaderTemplate is pointed at another DataTemplate (B). DataTemplate B is shown below: <DataTemplate x:Key="ProjectExpanderHeader"> <Border CornerRadius="2,2,0,0" Background="{StaticResource ItemGradient}" Horizontal...

How to bind collection to WPF:DataGridComboBoxColumn

Admittedly I am new to WPF but I have looked and looked and can't find a solution to this problem. I have a simple object like: class Item { .... public String Measure { get; set; } public String[] Measures {get; } } Which I am trying to bind to a DataGrid with two text columns and a combo box column. For the combo box column,...

Access GridViewColumnHeader object from GridViewColumn

Hi, is it possible in wpf to access the header of a gridviewcolumn as gridviewcolumnheader? I have an object: GridViewColumn column; But the "Header" property just returns a string (header text) not the "real" header object. Can anyone help my? ...

MS Chart control with WPF

Ive got a MS Chart control and it works just fine except that I can't figure out how to "format" the Y-Axis. I am adding a lot of double numbers into a Serie but when the double numb are actually whole numbers (20.000000.....) the Y-Axis on my chart shows 20. example: this serie : 12.32 11.00 10.13 would actually show up like this: 12...

Design Layout/Patterns

I am still fairly new to C# and I am trying to decide the best way to structure a new program. Here is what I want to do and I would like feed back on my idea. Presentation Layer Business Layer (Separate Class Library) Data Layer (Separate Class Library) Model Layer (Separate Class Library) What I am struggling with is if it is ok ...

how can I adjust the ToolBarTray orientation dynamically?

I am trying to set ToolBarTray orientation dynamically, so that I can create an auto-adjusted toolbar, same as Microsoft Office 2003. How can I do this? ...

Show WPF tooltip on disabled item only

Just wondering if it is possible to show a WPF on a disabled item ONLY (and not when the item is enabled). I would like to give the user a tooltip explaining why an item is currently disabled. I have an IValueConverter to invert the boolean IsEnabled property binding. But it doesn't seem to work in this situation. The tooltip is show b...

.Net : Need for a tutorial about how to create a Wpf user control (multi - column combobox) which can be binded to Database in other project

.Net : I'm new in Wpf so need for a tutorial about how to create a Wpf user control (multi - column combobox) which can be binded to Database in other project (windows application)? ...

WPF/MVVM: How can I use several CollectionView`s for aggregated entities ?

Hello, I have a Customer with Orders and those have products. Everything aggregated with collections of type ObservableCollection. All 3 collections are bound to a datagrid/combobox. I can only make the root collection (ObservableCollection Customers{ get;set;} ) passing to a CollectionView so I can move the current customer within t...

Please critique this method

Hi I've been looking around the net for some tab button close functionality, but all those solutions had some complicated eventhandler, and i wanted to try and keep it simple, but I might have broken good code ethics doing so, so please review this method and tell me what is wrong. public void AddCloseItem(string header, object conte...

Distinguish UI change to variable from code-behind change

Like the title says I am trying to architecture into my application a way to distinguish the source of a variable change, either from UI or code-behind. My problem is that I need to trigger some action after a property changed its value, but I only need to do this when the change comes from the UI because otherwise I don-t want to perfo...

WPF Binding.Stringformat ignored

With .NET 3.5 SP 1 I checked out this blog and followed instructions, however the StringFormat parameter still gets ignored. Any possible reasons? To be sure: the datatype that are involved are DateTime, double, int. So the formatting SHOULD work, but it's not. Any clues why? EDIT: here's the code! <Label Content="{Binding Path=TotalHo...

wpf progress bar slows 10x times serial port communications... how could be possible that?

I know that this could look a dumb question, but here's my problem. I have a worker dialog that "hides" a backgroundworker, so in a worker thread I do my job, I report the progress in a standard way and then I show the results in my WPF program. The dialog contains a simply animated gif and a standard wpf progress bar, and when a progres...