[CascadingParameter]publicintValue {get;set; } [CascadingParameter]publicstringSValue {get;set; }//修改下输出protectedoverridevoidBuildRenderTree(RenderTreeBuilder builder){ builder.AddMarkupContent(0,$"CascadingValue:{Value},{SValue}");// 一个int,一个stringChildContent?.Invoke(this)(builder);//...
String received from Parent : @ToChild @functions{ [Parameter] privatestringToChild{get;set;} [Parameter] Action<string> FromChild{get;set;} privatestringchildString; privatevoidPassToParent(){ childString = ToChild +"- To Parent"; FromChild(childString); } } ChildComponent中的FromChild特性/...
@code {[CascadingParameter(Name ="CascadeParam1")]protectedCascadingType? ChildCascadeParameter1{ get; set; }[CascadingParameter(Name ="CascadeParam2")]protectedCascadingType? ChildCascadeParameter2{ get; set; }} 跨组件层次结构传递数据 级联参数还允许组件跨组件层次结构传递数据。 请考虑下面的 UI 选...
[CascadingParameter] public int Value { get; set; } [CascadingParameter] public string SValue { get; set; }//修改下输出 protected override void BuildRenderTree(RenderTreeBuilder builder) { builder.AddMarkupContent(0, $"CascadingValue: {Value},{SValue} ");// 一个int,一个string ChildContent...
[Parameter] public RenderFragment ChildContent { get; set; } [Parameter] public IDictionary<string, TValue> Values { get; set; } [Parameter] public Func<string, TValue> Parser { get; set; } protected override bool TryParseValueFromString(string value, out TValue result, out string ...
<GrandChild grandchildEvent="childEvent"></GrandChild> @code { [Parameter] public EventCallback childEvent { get; set; } } Home.剃须刀 @page "/" <Child childEvent="test"></Child> @display @code{ string display = ""; private void test(){ display = "Get called"; } } 测试结果最...
; [Parameter] public RenderFragment? ChildContent { get; set; } [Parameter] public string Greeting { get; set; } = "Hello!"; private void UpdateMessage() { message = "Somebody updated me!"; } } 呈现模式继承 如果将 SharedMessage 组件放置在静态呈现的父级组件中,则 SharedMessage 组件也...
When specifying a delegate for C# event handler the@prefix is currently still required on the attribute value, but we expect to remove this requirement in a future update. In the future we also expect to use the directive attribute syntax to support additional features for event handlers. For ...
此时,级联类型作为 CascadingParameter 对整个应用中的 Razor 组件可用。 下面的 Keypad 组件示例: 显示KeypadViewModel.DisplayText 的当前值。 在显示字符串长度大于 0(零)的情况下(通过调用 ICommand.CanExecute 来检查),允许通过调用 KeypadViewModel.DeleteCharCommand 命令来删除字符。 允许通过在 UI 中按下键,调用...
repo.DbContextOptions.EnableAddOrUpdateNavigateList = true; repo.DbContextOptions.NoneParameter = true; repo.Insert(new Area { Code = "100000", Name = "中国", Childs = new List<Area>(new[] { new Area { Code = "110000", Name = "北京", ...