binding

问题 When I wire up my button to a command via XAML, I'm getting a run time error System.Windows.Markup.XamlParseException: Provide value on 'System.Windows.Data.Binding' threw an exception. ---> System.InvalidCastException: Unable to cast object of type 'System.Reflection.RuntimeEventInfo' to type 'System.Reflection.MethodInfo'. When I remove the command binding in XAML everything works okay, and my items display etc.. Here is the command binding: Click="{Binding ElementName=MainGrid, Path

问题 In swift I can cast an Int to a Double with Int(doubleVariable). But how can I cast a Binding < Double > to a Binding < Int > ? Then I could pass an @Binding var intVar: Int to a function requiring a Double binding. (The context of this is that I have an Int which I want to pass to a Slider in SwiftUI.) 回答1: I don’t think there’s a way to cast but you can create another Binding based on the first one: import SwiftUI var d = 1.0 // Create a Binding<Double> (for lack of another source) var bd =

问题 I'm trying to add some custom binding using my app settings for my Azure Function. I need to receive only string a string from my settings. I would like to get simpleValue from my settings. { "bindings": [ { "name": "someValue", "type": "stringSetting", "connection": "simpleValue", "direction": "in" } ], "disabled": false } and the get it in Run method: static void GetOrders(TraceWriter log, string someValue) { log.Info(someValue); } Is it even possible. Maybe there is other way to do it? 回答1

问题 I'm trying to add some custom binding using my app settings for my Azure Function. I need to receive only string a string from my settings. I would like to get simpleValue from my settings. { "bindings": [ { "name": "someValue", "type": "stringSetting", "connection": "simpleValue", "direction": "in" } ], "disabled": false } and the get it in Run method: static void GetOrders(TraceWriter log, string someValue) { log.Info(someValue); } Is it even possible. Maybe there is other way to do it? 回答1

问题 App crash when I change data source like I tap “change data” button in APIView or delete item in QueryParametersView.list console log: This class 'SwiftUI.AccessibilityNode' is not a known serializable element and returning it as an accessibility element may lead to crashes Fatal error: Index out of range: file /AppleInternal/BuildRoot/Library/Caches/com.apple.xbs/Sources/swiftlang/swiftlang-1103.8.25.8/swift/stdlib/public/core/ContiguousArrayBuffer.swift, line 444 class URLComponentsModel:

问题 I am getting these errors. I have read several posts and my TreeViewItem does have Horizontal and VerticalContentAlignment defined. Interestingly compiling in .NET 4.0+ makes the error go away (I use 3.5 - else I suffer from this https://connect.microsoft.com/VisualStudio/feedback/details/588343/changed-behaviour-from-net-3-5-to-net-4-0-of-wpf-textbox-formatting-when-proper) System.Windows.Data Error: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType

问题 My ListView is petty simple: <ListView ItemsSource="{Binding Path=ActiveCounters}"> <ListView.View> <GridView> <GridViewColumn Header="Name" DisplayMemberBinding="{Binding Path=Name}" /> <GridViewColumn Header="Value" DisplayMemberBinding="{Binding Path=Value}" /> <GridViewColumn Header="As Of Date" DisplayMemberBinding="{Binding Path=AsOfDate}" /> <GridViewColumn Header="Duration" DisplayMemberBinding="{Binding Path=Duration}" /> <GridViewColumn Header="Last Modified Date"

问题 My web-services application is moving from Axis to JAX-WS and I'm having trouble doing some of the conversions. My primary issue is that I have several XSD's with the same types defined slightly differently, but with the same names. During my wsimport I'm able to use an external JAXB bindings file to resolve the packages, but the generated classes still end up with the same @XmlType annotations. V1: package com.service.v1.bill.request; @XmlType(name = "FileBillReqType", namespace = "http:/

问题 I'm trying to build a custom NavBar with some optional Views , like a searchbar (but only if the view needs to display it). I need to pass some @State properties with @Binding down the views, basically. But I also need them to be Optional parameters. Here's an example: struct NavBar: View { var isSearchable: Bool?; @Binding var searchTxt: String; @Binding var searchIsOn: Bool; var navBarTitle: String; var navBarAction: (() -> Void)?; var navBarImage: String?; init(navBarTitle: String,

问题 I have a wsdl that imports a schema I am trying to resolve xjc naming multiple nested MyElementName classes with the same name - which doesn't compile I have created this binding file below but it gives the error: parsing a schema... compiling a schema... Exception in thread "main" java.lang.IllegalArgumentException: Illegal class inheritance loop. Outer class MyElementName1 may not subclass from inner class: MyElementName1 at com.sun.codemodel.internal.JDefinedClass._extends(JDefinedClass