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  • [winapi] Three questions about editbox ?

    - by subSeven
    Hello! I have three questions about editbox control in WINAPI (i can't find information on msdn about this) 1. How to disable moving typeing cursor with mouse, arrows, backspace in editbox ? I want to make typing like in command line in dos, but with out backspace. Can I write some piece of text with red color, and another with blue ? How to write to editbox control from another thread ?

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  • How to create horizontal menu in android ?

    - by sohilv
    Hello Friends, I am working on horizontal menu that will open on top of the screen. Layout is something like following, || < || Menu Item1 || Menu Item2 || Menu Item3 || || I want to put this on top of the screen. It can have more than 3 menu item and it can traverse through previous and next arrow. I started with like this, RelativeLayout ( width - fill_parent) Gallery View ( Here i appended adapter ) There is two problem, - Gallery view contains the space before and after - While scrolling its item gets selected Though its not ideal solution for this. How can i build custom component like this ? Any help appreciated. Thanks

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  • Advice Needed on Development of ConnectionWizard Custom Control

    - by SidC
    I have the need for an ASP.NET custom server control that will check the web.config file for a connectionstring name, prompt the user to create said connectionstring if not present, and execute create table stored procedures using the connection. This control will be embedded into a webpart for use in a WSS3.0 solution. Can anyone suggest some good tutorials on creating this type of control - specifically addressing use of connectionstrings? What methods/classes do I need to setup? Should I use the p&p data application block for this project? Thanks, Sid

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  • WFP Validation & IDataErrorInfo

    - by Jefim
    A note - the classes I have are EntityObject classes! I have the following class: public class Foo { public Bar Bar { get; set; } } public class Bar : IDataErrorInfo { public string Name { get; set; } #region IDataErrorInfo Members string IDataErrorInfo.Error { get { return null; } } string IDataErrorInfo.this[string columnName] { get { if (columnName == "Name") { return "Hello error!"; } Console.WriteLine("Validate: " + columnName); return null; } } #endregion } XAML goes as follows: <StackPanel Orientation="Horizontal" DataContext="{Binding Foo.Bar}"> <TextBox Text="{Binding Path=Name, ValidatesOnDataErrors=true}"/> </StackPanel> I put a breakpoint and a Console.Writeline on the validation there - I get no breaks. The validation is not executed. Can anybody just press me against the place where my error lies?

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  • Binding in ContentControl Crash

    - by ImJames
    Can anyone tell me why this crashes my app? There seems to be some endless recursion by I can't figure out why. I get this exception Logical tree depth exceeded while traversing the tree. This could indicate a cycle in the tree <ContentControl Content="{Binding}"> <ContentControl.ContentTemplate> <DataTemplate> <Button Content="{Binding MyString}"/> </DataTemplate> </ContentControl.ContentTemplate> </ContentControl> And this is all I have as Source public MainWindow() { InitializeComponent(); MyString = "Test"; this.DataContext = this; } public string MyString { get; set; }

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  • Not able to select a row in my ListView

    - by Krishna Thota
    I'm not able to select a row in my list Item Here is my code <Grid DockPanel.Dock="Left" MinWidth="250"> <ListView x:Name="ListVendors" ItemsSource="{Binding SourceCollection}"> <ListView.View> <GridView> <GridView.ColumnHeaderContainerStyle> <Style><Setter Property="FrameworkElement.Visibility" Value="Collapsed"/></Style> </GridView.ColumnHeaderContainerStyle> <GridViewColumn> <GridViewColumn.CellTemplate> <DataTemplate> <Grid> <Grid.RowDefinitions> <RowDefinition /> <RowDefinition /> <RowDefinition /> </Grid.RowDefinitions> <TextBlock Grid.Row="0" Text="{Binding Name}" FontSize="20"/> <TextBlock Grid.Row="1" Text="{Binding Code}" Foreground="Gray" /> <TextBlock Grid.Row="2" Text="{Binding ContactNo}" Foreground="Gray" /> </Grid> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> <GridViewColumn> <GridViewColumn.CellTemplate> <DataTemplate> <Grid> <Grid.RowDefinitions> <RowDefinition /> </Grid.RowDefinitions> <TextBlock Grid.Row="0" Text="{Binding Path=Address, Converter={StaticResource addNewLineConv}}" Grid.RowSpan="3" /> </Grid> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> <GridViewColumn> <GridViewColumn.CellTemplate> <DataTemplate> <Grid> <Grid.RowDefinitions> <RowDefinition /> </Grid.RowDefinitions> <TextBlock Grid.Row="2" Text="{Binding Email}"/> </Grid> </DataTemplate> </GridViewColumn.CellTemplate> </GridViewColumn> <GridViewColumn DisplayMemberBinding="{Binding Email}" Header="Email"/> </GridView> </ListView.View> </ListView> How can I select a row in this ListView?

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  • ListBox ,ScrollViewer ? CanContentScroll

    - by mrK
    Hi! I have ListBox with ScrollViewer <ScrollViewer Focusable="False" CanContentScroll="True" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Disabled"> <ListBox ItemsSource="{Binding Path=MyItems}" VerticalAlignment="Stretch" Focusable="False"> <ListBox.ItemContainerStyle> <Style TargetType="{x:Type ListBoxItem}"> <Setter Property="OverridesDefaultStyle" Value="true"/> <Setter Property="HorizontalContentAlignment" Value="Stretch"/> <Setter Property="VerticalContentAlignment" Value="Stretch"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type ListBoxItem}"> <Border CornerRadius="3,3,3,3"> <Grid> <myControls:MyControl/> </Grid> </Border> </ControlTemplate> </Setter.Value> </Setter> </Style> </ListBox.ItemContainerStyle> <ListBox.Style> <Style TargetType="ListBox"> <Setter Property="SnapsToDevicePixels" Value="true"/> <Setter Property="OverridesDefaultStyle" Value="true"/> <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/> <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/> <Setter Property="ScrollViewer.CanContentScroll" Value="True"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="ListBox"> <ScrollViewer Focusable="False" CanContentScroll="True"> <Border> <StackPanel Margin="2" Orientation="Horizontal" IsItemsHost="True"/> </Border> </ScrollViewer> </ControlTemplate> </Setter.Value> </Setter> </Style> </ListBox.Style> </ListBox> </ScrollViewer> But CanContentScroll="True" does't work. It's still scrolling in physical units. Whats wrong in my code? Thanks!

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  • What is the easiest way to generate a Valid x:Name?

    - by just in case
    I am generating some Xaml based on some other source of input. In some cases I am generating x:Name values but they have invalid characters. I found this article on MSDN: XamlName Grammar Which describes the grammar of a x:Name tag but doesn't tell me how to actually apply this. Clearly there is some code to validate this name at runtime but what is the easiest way to actually fix up a string with invalid characters?

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  • Sharing state/changes across ViewModels

    - by joshperry
    I have an App which has a Tasks tab and a Projects tab. I decided to make a separate ViewModel for each of the tabs, TasksViewModel and ProjectsViewModel. The Tasks tab has a new task area with an associated project pulldown and the Projects tab (obviously) has a list of projects. What I'd like is for the pulldown on the Tasks tab to share the same collection as the Projects tab list so that any time I add or remove a project on the Projects tab the list on the Tasks tab is up to date automatically. This worked well with a single ViewModel but it was beginning to become quite unruly. Should I not have split into two ViewModels? Is there a common method of sharing data like this? Perhaps pass the same ObservableCollection<Project> into each of the ViewModels? Perhaps some type of notification back to the TasksViewModel along the lines of ICollectionChanged. Appreciate any insight/input!

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  • Code to extrude 2d geometry to 3d

    - by Bgnt44
    Hi, is there any simple way to extrude a 2d geomtry (vectors ) to a 3d shape assuming extruding parameter are lenght (double) and angle (degree) so it should render like a cone ( all z lines going to one point )

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  • ScaleTransform and CenterX

    - by Vasco Correia
    I have the following code <Canvas Width="800" Height="600"> ... In the UserControl I animate the ScaleTranform to 1. I want UserControl to "grow" from its center, but it "grows" from the upper left corner of it. The values in CenterX and CenterY do nothing. How can I make it Scale as I want? Thanks in advance.

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  • Microsoft Surface: "Read" the tag value of an IdentityTag

    - by sofri
    Hi, is it possible to read the value of an IdentityTag if you place it on the TagVisualizer, without having initalized it before? I would like to use the tags for registering a new object on the Surface but having all the "free" IdentityTags in a Collection for initalizing them all... There must be a better way to do in I think. But the TagVisualizer doesn't seem to do anything when you put a tag on it that it doesn't know.

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  • Where does the data model go in a Prism app?

    - by HawkeyeJoeS
    I'm having trouble where to put our data model in our Prism app. Most, if not all or our data will be coming from web services and the web services are unique for each module. Unfortunately, there will be objects that need to be shared (such as a person/user object). I'm really torn about whether to add these services directly to the module, so that each is truly independent, or create a separate project to house the web service proxies and business entities. The modules are being built by different teams, but will all live in the same solution (and source control, of course).

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  • MVVM Binding To Property == Null

    - by LnDCobra
    I want to show some elements when a property is not null. What is the best way of achieving this? The following is my ViewModel: class ViewModel : ViewModelBase { public Trade Trade { get { return _trade; } set { SetField(ref _trade, value, () => Trade); } } private Trade _trade; } ViewModelBase inherits INotifyPropertyChanged and contains SetField() The Following is the Trade class: public class Trade : INotifyPropertyChaged { public virtual Company Company { get { return _company; } set { SetField(ref _company, value, () => Company); } } private Company _company; ...... } This is part of my View.xaml <GroupBox Visibility="{Binding Path=Trade.Company, Converter={StaticResource boolToVisConverter}}" /> I would like this groupbox to show only if Trade.Company is not null (so when a user selects a company). Would I need to create a custom converter to check for null and return the correct visibility or is there one in .NET?

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  • A new MEF error I've not seen before -- "The export is not assignable to type..."

    - by Dave
    I was very surprised to get this error today, as it's one that I've never encountered before. Everything in the code looked okay, so I did some searches. The previous questions and their respective answers didn't help. This one was solved when the poster made sure his assembly references were consistent. I don't have this issue right now because I'm currently referencing another project in my solution. This one was solved when the poster was instructed to use ImportMany, but I am already using it (I think properly, too) to try to load multiple plugins This one was solved when the poster realized that there was a platform target mismatch. I've already gone through my projects to ensure that everything targets x86. So here's what I am trying to do. I have a plugin that owns a connection to a device. I might also need to be able to share that connection with another plugin. I decided that the cleanest way to do this was to create an interface that would allow the slave plugin to request its own connection to the device. Let's just call it IConnectionSharer. If the slave plugin does not need to borrow this connection and has its own, then it should use its own implementation of IConnectionSharer to connect to the device. My "master" plugin (the one that owns the connection to the device) implements IConnectionSharer. It also exports this via ExportAttribute. My "slave" plugin assembly defines a class that also implements and exports IConnectionSharer. When the application loads, the intent is for my slave plugin, via MEF, to enumerate all IConnectionSharers and store them in an IEnumerable<IConnectionSharer>. It does so like this: [ImportMany] public IEnumerable<IConnectionSharer> AllSharedConnections { get; set; } But during part composition, I get the error the export 'Company.MasterPlugin (ContractName="IConnectionSharer")' is not assignable to type 'IConnectionSharer'. The error message itself seems clear enough -- it's as if MEF thinks my master plugin doesn't inherit from IConnectionSharer... but it does! Can anyone suggest further debugging strategies? I'm going to start the painful process of single stepping through the MEF source.

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  • Bind to Count of items in the DataContext

    - by Organ Grinding Monkey
    I want to bind to the Count/amount of items within my DataContext. I have an object, lets say person which has a List<address> as a property. I would like to display the amount of addresses for that person ie: 5 or 6 or whatever the case may be. I've tried {Binding Path=address#.Count} and a few others but that doesnt seem to work. Any help would be appreciated, thanks.

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  • Best way to attach row from datagrid to EF.

    - by AKoran
    Using MVVM and EF...I have a datagrid binding to a View Model (using ObservableCollection). The view model has a save command which simply calls the SaveChanges command of the Data Context. However, when a user adds a new row to the datagrid, the new entity is detached. Is there any easy way to automatically attach it when it gets created. Currently, I'm having to do this in the Save command of my View Model and it seems a bit clunky: foreach (var dataItem in _DataList) // where _DataList is the ObservableCollection { if (dataItem.EntityState == EntityState.Detached) { _DataContext.AddToTestTables(dataItem); } } _DataContext.SaveChanges();

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  • What do you name the "other" kind of view-model in an MVVM project?

    - by DanM
    With MVVM, I think of a view-model as a class that provides all the data and commands that a view needs to bind to. But what happens when I have a database entity object, say a Customer, and I want to build a class that shapes or flattens the Customer class for use in a data grid. For example, maybe this special Customer object would have a property TotalOrders, which is actually calculated using a join with a collection of Order entities. My question is, what do I call this special Customer class? In other situations, I'd be tempted to call it a CustomerViewModel, but I feel like "overloading" the notion of a view-model like this would be confusing in an MVVM project. What would you suggest?

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  • Custom Control in ASP.NET C#

    - by Gal V
    Hello all, I created a simple custom control that only inherits from the Literal control, and doesn't have any extensions yet, code is empty. Namespace: CustomControls Class name: Literal : System.Web.UI.WebControls.Literal Next thing I do is registering this control in the aspx page as following: <%@ Register TagPrefix="web" Namespace="CustomControls" % (I read in few tutorials that this is one of the ways to register it, besides web.config etc.) After all, no intellisence for me, and worse- I get a parse error 'unknown server tag: web' when I try to run the page with the control in it. I used 'create new project' and not new website, in case this info is needed. What could be my problem? Thanks in advance.

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