binding

问题 I'm experiencing some issues with rewriting my blocking socket server to a non-blocking version. Actually, I can't seem to even get socket connected anymore, I've been googling for the most of today, and trying different solutions I find here and there, but none of them seem to work properly... Currently my server loop just keeps timeouting the select() call, with no new sockets accepted. Client socket seems to connect on some level, since if I start it, it will block trying to write, and if

问题 How do I pass the categoryId for the selected CategoryName in the first combo box, which would populate the products in the second combo box / the table structure is a below. Table_Category CategoryId CategoryyName Table_Product ProductId ProductName CategoryId ProductPrice ProductUnit Thanks, Hussain Patel 回答1: for the first combo box (cmbcategory) using ADO.NET (code), get category object (containing the categoryId and categoryName) and bind to itemsource property of first combo box

问题 When using a string value as Content of a ContentControl (like Label), using an _ inside the string allows using the following letter as access key, like this: <Label Content="Text with _access key"/> or even <Label Content="{Binding Text}"/> if Text is a string property containing an _ . However, when using ContentStringFormat which contains the _ , it doesn't work any more: <Label Content="{Binding Value}" ContentStringFormat="_Formatted value {0}"/> I have seen in the debugger that no

问题 I'm using the following code for binding XAML <StackPanel x:Name="channelsRecordTimeData" Orientation="Vertical"> <ItemsControl x:Name="channelRecordTimeItems" ItemsSource="{Binding}"> <ItemsControl.ItemTemplate> <DataTemplate> <Grid x:Name="gridChannelRecordTimeItem" Width="{Binding Path=ChannelRecordTimeItemWidth}" Height="{Binding Path=ChannelRecordTimeItemHeight}" Margin="{Binding Path=ChannelRecordTimeItemsMargin}" HorizontalAlignment="Left" DataContext="{Binding Path=ListRecordTime}">

问题 I have two Many-To-Many with Payload entities as shown below: So, to make an Assembly stored in MasterPartNumber with a part number: MasterPartNumber.pn , I use the navigation property ParentBOMs , which is given by the relationship: MasterPartNumber.pnID = MasterPartsList.parentPnID . This gives me all the child pnIDs under that parent assembly. To get the child part numbers for that assembly , I use the ChildPn navigation property, defined by MasterPartsList.pnID = MasterPartNumber.pnID .

问题 Here is the problem I met: Class SimpleCommand implements Executable{ private final ConfigManager config; private String name; @Inject public SimpleCommand(ConfigManager config, @Assisted String name){ this.config = config; this.name = name; } } Class MyModule extends AbstractModule{ @Override protected void configure() { bind(CommandFactory.class).toProvider(FactoryProvider.newFactory(CommandFactory.class, SimpleCommand.class)); bind(Executable.class).to(SimpleCommand.class); } } When I try

问题 I came up with an idea that requires to bind thousands of buffers (Atomic counters and Shader storage ones) to one GLSL program. I first checked if this would make any sense in the limitations of openGL and it seems possible for two reasons : On my laptop GL_MAX_ATOMIC_COUNTER_BUFFER_BINDINGS and GL_MAX_SHADER_STORAGE_BUFFER_BINDINGS both are around 32k. So openGL is enclined to let me bind thousands of buffers for one pass. openGL 4.4 comes up with : void BindBuffersBase(enum target, uint

问题 i have a custom userControl with DPs and have the problem that the binding to these properties only works if i use the controls outside of datatemplates. Outside of Datatemplates works the usercontrol great. XAML to Test the UserControl in a DataTemplate <GroupBox Header="DataTemplate" Padding="5"> <ItemsControl ItemsSource="{Binding Dummies}"> <ItemsControl.ItemTemplate> <DataTemplate DataType="local:Dummy"> <StackPanel Orientation="Horizontal" Margin="2"> <common:QuarterPicker

问题 If i declare the Bind attribute as a parameter on the method, it doesnt work as it expected [AcceptVerbs(HttpVerbs.Post)] public ActionResult Create([Bind(Exclude="ID")]int ServiceId, Event evnt) { var service = dbSrc.GetAll().WithID(ServiceId).SingleOrDefault(); if (service == null) But if i declare it on the class level, it works! [Bind(Exclude = "ID")] partial class Event { The form firing the create action is in the usercontrol and i am using asp.net mvc 1 ? My db setup is fine. The id

问题 Topic: How to prevent that the binding on a UserControl overrides the binding given by the upper (Main)Window using this UserControl. I already read posts, and some books on that subject but I am still puzzled with binding mechanisms. Even in some specialized books the terms of DependencyProperty or AttachedProperty is barely mentioned. Microsoft documentation is good but somewhat bare. Thanks for putting me again on the right direction This example is an extreme simplification of the