import Parentfrom'./components/Parent.vue'import Childfrom'./components/Child.vue'import {ref,provide}from'vue'//一个键,提供一个响应式数据和相应的方法constlook =ref({height:170,weight:130}) function changeLook(){ look.value
[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);//...
@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...
@implementsIDisposable@injectStateContainer StateContainerNested componentNested component Property:@StateContainer.PropertyChange the Property from the Nested component@code {protectedoverridevoidOnInitialized(){ StateContainer.OnChange += StateHasChanged; }privatevoidChangePropertyValue(){ StateContainer.Property...
[Parameter] public string Text { get; set; } Copy And then add the following mark-up to TabControl (just above where the ChildContent is rendered) which will both render the tabs, and change which TabPage is selected when it's tab is clicked. @foreach (TabPage tabPage in Pages) ...
void SelectedCarsChanged(ChangeEventArgs e) { SelectedCar = e.Value?.ToString(); } } 11. 自定义组件实现双向绑定 bind只适用于组件内部,自定义组件实现双向绑定需按如下步骤: 定义绑定属性值 [Parameter] public string? Text { set; get; }
<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...
Set up the Task<AuthenticationState> cascading parameter using the AuthorizeRouteView and cascading authentication state services. When you create a Blazor app from one of the Blazor project templates with authentication enabled, the app includes the AuthorizeRouteView and the call to AddCascadingAuthent...
ChildContent属性命名为固定名字,下例是完整写法,上面是简略写法。 <Component> <ChildContent> Superior! </ChildContent> </Component> 模板 可以通过指定一个或多个 RenderFragment 类型的组件参数来接收多个UI段。 <!--组件代码--> @Title is @Quality @code{ [Parameter] public RenderFragment Title { get...
[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 ...