Hi Flavio Sun , the API doesn't expose a direct way to programmatically extract the existing analysis task and its report without re-running the analysis.  You can however recover the taskId from the generated analysis.xml reports that are in the project folder `Reports\`.  

Example:

using System;
using System.Xml;

public static class ReportXmlHandler
{
    public static string GetTaskIdFromReport(string filePath)
    {
        if (string.IsNullOrEmpty(filePath))
            throw new ArgumentException("filePath cannot be null or empty.", nameof(filePath));

        try
        {
            XmlDocument xmlDoc = new XmlDocument();
            xmlDoc.Load(filePath);

            XmlNode taskInfoNode = xmlDoc.SelectSingleNode("//task/taskInfo");

            return taskInfoNode?.Attributes?["taskId"]?.Value;
        }
        catch (Exception ex)
        {
            Console.WriteLine($"Error reading XML: {ex.Message}");
            return null;
        }
    }
}

Hi Patrick Andrew Hartnett ,

Thank you for reply. I am wondering after getting the taskId, what I should do to get the analysis task or report, do you have more suggestions?

Hi Patrick Andrew Hartnett ,

Thank you for reply. I am wondering after getting the taskId, what I should do to get the analysis task or report, do you have more suggestions?

Hi Flavio Sun , I miss-read yr initial question:-(  you can access the reports from an API that was introduced recently: Working with Project Reports

Example:

var reports = new ProjectReportsOperations(fileBasedProject).GetProjectReports();

Note: You should also make reference to the Reports View Plus project from our public github repository. It'll provide you with a good example of how to work with this API