SubDocument.AddTextAsync(String, CancellationToken) Method

Appends the specified text to the sub-document.

Namespace: DevExpress.Blazor.RichEdit

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

NuGet Package: DevExpress.Blazor.RichEdit

Declaration

public ValueTask<TextSpan> AddTextAsync(
    string text,
    CancellationToken cancellationToken = default(CancellationToken)
)

Parameters

Name	Type	Description
text	String	The text to insert.

Optional Parameters

Name	Type	Default	Description
cancellationToken	CancellationToken	null	An object that propagates a cancellation notification.

Returns

Type	Description
ValueTask<TextSpan>	A structure that stores an awaitable result of an asynchronous operation. The awaitable result is the inserted text span.

Remarks

Use the ChangePropertiesAsync(Action<CharacterProperties>, CancellationToken) method to specify character properties of the inserted text.

<DxRichEdit @ref="richEdit" />

@code {
    DxRichEdit richEdit;
    Document documentAPI;
    @* ... *@
    /* Surround the code that contains an asynchronous operation with a try-catch block to handle
    the OperationCanceledException. This exception is thrown when an asynchronous operation is canceled. */
        try {
            documentAPI = richEdit.DocumentAPI;
            TextSpan characters = await documentAPI.AddTextAsync("New Text");
            @* ... *@
            await characters.ChangePropertiesAsync(properties => {
                if (characters.AllCaps != false)
                    properties.AllCaps = false;
            });
            @* ... *@
        }
        catch (OperationCanceledException e) {
            Console.WriteLine($"{nameof(OperationCanceledException)} thrown with message: {e.Message}");
        }
}