From my WizardStep component is it possible to get a reference to the underlying instance of the rendered child so I that can directly call methods on it?
Title { get; set; } } SurveyPrompt.razor.cs:C# 複製 using Microsoft.AspNetCore.Components; using Microsoft.JSInterop; namespace BlazorSample.Components; public partial class SurveyPrompt : ComponentBase, IObserver<ElementReference>, IDisposable { private IDisposable? subscription = null; [Parameter...
@* TextDisplay component *@@usingWebApplication.Data;Enter text:@code {[Parameter]publicEventCallback<KeyTransformation> OnKeyPressCallback{ get; set; }privatestringdata;privateasyncTaskHandleKeyPress(KeyboardEventArgs e){ KeyTransformation t = new KeyTransformation() { K...
public string HostStyle { get; set; } private ElementReference host; public void setValue(int sheetIndex, int row, int col, object value) { JSRuntime.InvokeVoidAsync("sjsAdaptor.setValue", host, sheetIndex, row, col, value); } public void OpenExcel(ElementReference inputFile) { JSRunti...
// component. This could lead to application bugs. [Parameter] public IDictionary<string, object>? Parameters { get; set; } /// /// Gets rendered component instance. /// public object? Instance { get; private set; } /// <inheritdoc />...
Also, check out the Adding Script Reference topic to learn different approaches for adding script references in your Blazor application.Add Blazor DocumentEditor ComponentAdd the Syncfusion® Blazor DocumentEditor component in the ~/Pages/Index.razor file....
DotNetObjectReference<MyComponent> selfReference; private string message = "Move the mouse in the box"; [JSInvokable] public void HandleMouseMove(int x, int y) { message = $"Mouse move at {x}, {y}"; StateHasChanged(); } protected override async Task OnAfterRenderAsync(bool firstRender)...
Hello @code { // This will be null until the OnAfterRender* methods execute // with firstRender set to true ElementReference MyReferenceToAnHtmlElement; } Dispose 尽管这不是严格意义上的ComponentBase生命周期方法之一,但是如果一个组件实现了IDisposable,那么一旦该组件从其父渲染树中移除,Blazor就会执行...
添加一个Razor类库项目,假设我们取名为:EDT.BlazorComponent.Dialog。 将默认的Component1.razor文件重命名为ModalDialog.razor,首先将下面的Razor内容添加到ModalDialog.razor中: @if(Show){@Title @ChildContent @CancelText@ConfirmText
此异常将从ComponentTagHelper中的调用堆栈引发。 在正常情况下,如果预呈现失败,则继续生成和呈现组件都将没有作用,因为无法呈现工作组件。 若要容许在预呈现期间可能发生的错误,必须将错误处理逻辑置于可能引发异常的组件中。 请使用try-catch语句,并进行错误处理和日志记录。 请勿将ComponentTagHelper包装在try-catch语句...