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V25.1
  • SubDocument.AddHtmlAsync(Int32, String, CancellationToken) Method

    Parses HTML code and inserts the resulting content at the specified position in a sub-document.

    Namespace: DevExpress.Blazor.RichEdit

    Assembly: DevExpress.Blazor.RichEdit.v25.1.dll

    NuGet Package: DevExpress.Blazor.RichEdit

    Declaration

    public ValueTask<Interval> AddHtmlAsync(
        int position,
        string htmlText,
        CancellationToken cancellationToken = default(CancellationToken)
    )

    Parameters

    Name Type Description
    position Int32

    The target position in the sub-document.

    htmlText String

    The HTML code.

    Optional Parameters

    Name Type Default Description
    cancellationToken CancellationToken null

    An object that propagates a cancellation notification.

    Returns

    Type Description
    ValueTask<Interval>

    A structure that stores an awaitable result of an asynchronous operation. The awaitable result is the inserted interval.

    Remarks

    The following code snippet inserts the content of the C:\Temp\html-content.html file into a Rich Text Editor’s sub-document starting at the fifth character:

    <DxRichEdit @ref="@richEdit"/>
    
    @code {
        DxRichEdit richEdit { get; set; }
        string htmlContent { get; set; }
    
        string pathHtml { get; set; } = @"C:\Temp\html-content.html";
    
        protected async override Task OnAfterRenderAsync(bool firstRender) {
            if (firstRender) {
                htmlContent = File.ReadAllText(pathHtml);
                await richEdit.DocumentAPI.AddHtmlAsync(5, htmlContent);
            }
            await base.OnAfterRenderAsync(firstRender);
        }
    }
    

    To parse HTML code and insert the corresponding content at the end of a sub-document, use the AddHtmlAsync(String, CancellationToken) method.

    See Also