Section.ChangePropertiesAsync(Action<SectionProperties>, CancellationToken) Method

Sets the section’s properties.

Namespace: DevExpress.Blazor.RichEdit

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

NuGet Package: DevExpress.Blazor.RichEdit

Declaration

public ValueTask<bool> ChangePropertiesAsync(
    Action<SectionProperties> modifier,
    CancellationToken cancellationToken = default(CancellationToken)
)

Parameters

Name	Type	Description
modifier	Action<SectionProperties>	A delegate method that configures section properties.

Optional Parameters

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

Returns

Type	Description
ValueTask<Boolean>	A structure that stores an awaitable result of an asynchronous operation. The awaitable result is true if the operation ends successfully; otherwise, it is false.

Remarks

Pass a SectionProperties object to the ChangePropertiesAsync method to set a section’s properties. You can specify section properties manually or use the CopyFrom(Section) method to copy properties from another section.

<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;
            var sections = await documentAPI.Sections.GetAllAsync();
            foreach (Section s in sections)
                await s.ChangePropertiesAsync(properties => {
                    if (s.ColumnCount != 3)
                        properties.ColumnCount = 3;
                });
        }
        catch (OperationCanceledException e) {
            Console.WriteLine($"{nameof(OperationCanceledException)} thrown with message: {e.Message}");
        }
}