SubDocument.RemoveAsync(Int32, Int32) Method
Removes the specified text interval.
Namespace: DevExpress.Blazor.RichEdit
Assembly: DevExpress.Blazor.RichEdit.v21.2.dll
NuGet Package: DevExpress.Blazor.RichEdit
Declaration
public ValueTask<int> RemoveAsync(
int startPosition,
int length
)
Parameters
Name | Type | Description |
---|---|---|
startPosition | Int32 | The interval start position. |
length | Int32 | The interval length. |
Returns
Type | Description |
---|---|
ValueTask<Int32> | A structure that stores an awaitable result of an asynchronous operation. The awaitable result is an integer value that indicates the number of items deleted, or 0 (zero) if the deletion was unsuccessful. |
Remarks
The following example deletes a paragraph mark and joins the first paragraph’s content with the second paragraph’s content:
<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 cancelled. */
try {
documentAPI = richEdit.DocumentAPI;
@* ... *@
Paragraph firstParagraph = await documentAPI.Paragraphs.GetAsync(0);
await documentAPI.RemoveAsync(firstParagraph.Interval.Start + firstParagraph.Interval.Length - 1, 1);
@* ... *@
}
catch (OperationCanceledException e) {
Console.WriteLine($"{nameof(OperationCanceledException)} thrown with message: {e.Message}");
}
}
See Also