SubDocument.GetTextSpanAsync(Int32, Int32, CancellationToken) Method

Gets the text span at the specified position.

Namespace: DevExpress.Blazor.RichEdit

Assembly: DevExpress.Blazor.RichEdit.v23.2.dll

NuGet Package: DevExpress.Blazor.RichEdit

Declaration

public ValueTask<TextSpan> GetTextSpanAsync(
    int startPosition,
    int length,
    CancellationToken cancellationToken = default(CancellationToken)
)

Parameters

Name	Type	Description
startPosition	Int32	A start position of the span.
length	Int32	A length of the span.

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 text span.

Remarks

Call the ChangePropertiesAsync(Action<CharacterProperties>, CancellationToken) method to change properties of the text span’s characters.

<DxRichEdit @ref="richEdit" CssClass="w-100 ch-720" />

@code {
    DxRichEdit richEdit;
    @* ... *@
        Document documentAPI = richEdit.DocumentAPI;
        @* ... *@
        TextSpan boldTextSpan = await documentAPI.GetTextSpanAsync(0, 15);
        await boldTextSpan.ChangePropertiesAsync(properties => {
            properties.FontBold = true;
        });
        @* ... *@
}