Hello, I think there is an error in the "OutlookGroupBy" functionality of the WinGrid.

The language of my computer is german (Windows XP Professional).

(Regional and Language Options

Regional Options:

Standards and formats: German (Germany)

Location: Germany

Advanced: Language for not-Unicode programs: German (Germany))

Steps to reproduce:

1. Create a new WindowsFormsApplication project.

2. Place the UltraGrid on the form.

3. Dock = Fill;

   DisplayLayout.ViewStyleBand = OutlookGroupBy;

4. Code for the form:   

 //Form1.cs

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

namespace GridOutlookGroupByTest

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

         private void Form1_Load(object sender, EventArgs e)

        {

            DataTable dt = new DataTable();

            dt.Columns.Add("Date", typeof(DateTime));

            for(int i = -30; i < 30; i++ )

            {

                dt.Rows.Add(new object[1] { DateTime.Now.AddDays(i)});

            }

             ultraGrid1.DataSource = dt;

        }

    }

}

// Programm.cs

using System;

using System.Collections.Generic;

using System.Windows.Forms;

using System.Threading;

namespace GridOutlookGroupByTest

{

    static class Program

    {

        /// <summary>

        /// Der Haupteinstiegspunkt für die Anwendung.

        /// </summary>

        [STAThread]

        static void Main()

        {

            Thread.CurrentThread.CurrentUICulture = new System.Globalization.CultureInfo("de-DE");

            Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo("de-DE");

            Application.EnableVisualStyles();

            Application.SetCompatibleTextRenderingDefault(false);

            Application.Run(new Form1());

        }

    }

}

5. Set current Day on the computer to Monday.

6. Drop the column header into the GroupBy box.

There is a incorrect headline for the group with item for next Sunday.

It must be "Sontag" (sunday), but "Gestern"(Yesterday) is shown instead.

Is there any work around for this error?

Tanks.