Interval.Length Property
In This Article
Returns the number of character positions in the interval.
Namespace: DevExpress.Blazor.RichEdit
Assembly: DevExpress.Blazor.RichEdit.v24.2.dll
NuGet Package: DevExpress.Blazor.RichEdit
#Declaration
C#
public int Length { get; }
#Property Value
Type | Description |
---|---|
Int32 | The interval length. |
#Remarks
The following example shows how you can access the selected paragraph:
Razor
<DxRichEdit @bind-Selection="@selection" @ref="@richEdit" />
@code {
DxRichEdit richEdit;
Selection selection;
@* ... *@
/* 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 {
@* ... *@
Document documentAPI = richEdit.DocumentAPI;
Paragraph selectedParagraph;
// Checks whether the main sub-document is active
if (selection.ActiveSubDocument.Type == SubDocumentType.Main) {
// Obtains all paragraphs in the main sub-document
IReadOnlyList<Paragraph> paragraphs = await documentAPI.Paragraphs.GetAllAsync();
// Gets the caret position
int caretPosition = selection.CaretPosition;
for (int i = 0; i < paragraphs.Count; i++) {
// Gets the interval that contains the current paragraph
Interval interval = paragraphs[i].Interval;
// Checks whether the caret is within the current paragraph
if (interval.Start <= caretPosition & caretPosition <= interval.Start + interval.Length - 1) {
selectedParagraph = paragraphs[i];
break;
}
}
}
@* ... *@
}
catch (OperationCanceledException e) {
Console.WriteLine($"{nameof(OperationCanceledException)} thrown with message: {e.Message}");
}
}
See Also