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V24.2

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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.v24.2.dll

NuGet Package: DevExpress.Blazor.RichEdit

#Declaration

C#
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:

Razor
<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