Create a dynamic calendar

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C#

DevExpress

Hello guys I need your help. How to create a dynamic calendar in C#.net in such a way that I can enter my alerts regarding birthdays ,any events and any reminders about my daily tasks which have to be done in my daily schedule in the cells of the calendar on some particular dates dynamically .

I wrote below code.It isn't working.

DataTable dt = SystemManager.DataBase.ExecuteQuery("", "sphrm_EmployeeBirthDay_SEL").Tables[0];
        gridControl1.DataSource = dt;
 DateTime dtEnd = DateTime.Now;
        dtEnd = dtEnd.AddDays(15);
        for (DateTime dt = DateTime.Now; dt <= dtEnd; dt = dt.AddDays(1))
        {
            string str = "";
            str = dt.Year.ToString() + " year " + dt.Month.ToString() + " month ";

            if (Month != str)
            {
                band = bandedGridView2.Bands.AddBand(str);
                band.AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
                band.AppearanceHeader.TextOptions.WordWrap = DevExpress.Utils.WordWrap.Wrap;
                band.AppearanceHeader.Font = new Font("Tahoma", 8, FontStyle.Bold);
            }
            BandedGridColumn column = (BandedGridColumn)bandedGridView2.Columns.AddField("F" + dt.Year.ToString() + "_" + dt.Month.ToString() + "_" + dt.Day.ToString());
            RepositoryItemPictureEdit repositoryItemPictureEdit1 = new RepositoryItemPictureEdit();
            column.ColumnEdit = repositoryItemPictureEdit1;
            string Days = "";
            if (dt.Day.ToString().Length == 1)
                Days = "0" + dt.Day.ToString();
            else
                Days = dt.Day.ToString();
            column.Caption = dt.DayOfWeek.ToString().Substring(0, 2) + "   " + Days;
            column.AppearanceHeader.TextOptions.HAlignment = DevExpress.Utils.HorzAlignment.Center;
            column.AppearanceHeader.TextOptions.WordWrap = DevExpress.Utils.WordWrap.Wrap;
            column.AppearanceHeader.Font = new Font("Tahoma", 8, FontStyle.Bold);
            column.OwnerBand = band;
            column.Visible = true;
            column.Width = 38;
            column.OptionsColumn.AllowEdit = false;
            Month = str;
        }