RichTextBox: HtmlFormatProvider: Create unique identifier for each document element and allow export/import them

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Unplanned

Last Updated: 18 May 2021 08:29 by ADMIN

Emin Sadigov

Created on: 18 May 2021 08:28

Category: RichTextBox

Type: Feature Request

RichTextBox: HtmlFormatProvider: Create unique identifier for each document element and allow export/import them

Each RichText element should contain a unique id. The id contains DateTime.UtcNow.Ticks. This format is requiring to know which RT elements were added from the last change.
Export these ids into html as is and import.

For compatibility, id should have a different attribute name, for example:

<p data-telerik-id="Paragraph637567542110611335">
	<span data-telerik-id="Span637567542110611345">
		Test
	</span>
</p>

Note: data-* is Global attribute name: https://www.w3schools.com/tags/att_data-.asp

Id value example:

public class HiResDateTime
{
	private static long lastTimeStamp = DateTime.UtcNow.Ticks;
	private static readonly Regex digitsOnly = new Regex(@"[^\d]");
	public static long UtcNowTicks
	{
		get
		{
			long original, newValue;
			do
			{
				original = lastTimeStamp;
				long now = DateTime.UtcNow.Ticks;
				newValue = Math.Max(now, original + 1);
			} while (Interlocked.CompareExchange
						 (ref lastTimeStamp, newValue, original) != original);

			return newValue;
		}
	}

	public static string UtcNowTicksString => digitsOnly.Replace(UtcNowTicks.ToString(), "");
}