Skip to main content

DevExpress v24.2 Update — Your Feedback Matters

Our What's New in v24.2 webpage includes product-specific surveys. Your response to our survey questions will help us measure product satisfaction for features released in this major update and help us refine our plans for our next major release.

Take the survey Not interested

CharacterProperties.Hidden Property

Specifies whether content is hidden.

Namespace: DevExpress.Blazor.RichEdit

Assembly: DevExpress.Blazor.RichEdit.v24.2.dll

NuGet Package: DevExpress.Blazor.RichEdit

#Declaration

C#
public bool? Hidden { get; set; }

#Property Value

Type Description
Nullable<Boolean>

true if content is hidden; false if content is visible; null if only some content is hidden.

#Remarks

The Hidden property defines whether content is hidden. Select the HomeShow/Hide ¶ ribbon command to show/hide hidden content. The Rich Text Editor underlines hidden content with the dotted line.

Rich Edit - Hidden Characters

Use a text span’s Hidden or a table cell’s CharacterProperties.Hidden property to identify whether content in the span or cell is hidden. Call the TextSpan.ChangePropertiesAsync or TableCell.ChangePropertiesAsync method to show or hide content.

The following example hides a text span’s content:

Razor
<DxRichEdit @ref="richEdit" />

@code {
    DxRichEdit richEdit;
    Document documentAPI;

    protected override async Task OnAfterRenderAsync(bool firstRender) {
        if (firstRender)
            try {
                await InitializeDocument();
            }
            catch (TaskCanceledException) { }
        await base.OnAfterRenderAsync(firstRender);
    }

    async Task InitializeDocument() {
    /* 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 => {
                properties.Hidden = true;
            });
        }
        catch (OperationCanceledException e) {
            Console.WriteLine($"{nameof(OperationCanceledException)} thrown with message: {e.Message}");
        }
    }
}

#Implements

See Also