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    <p>this is the complete c# code to do that</p> <pre><code>protected void Page_Load(object sender, EventArgs e) { if(!IsPostBack) { LoadMonthDdl(); } } private void LoadMonthDdl() { ddlMotnh.Items.Clear(); ddlMotnh.Items.Add(new ListItem("January-"+DateTime.Now.Year,"1")); ddlMotnh.Items.Add(new ListItem("February-" + DateTime.Now.Year, "2")); ddlMotnh.Items.Add(new ListItem("March-" + DateTime.Now.Year, "3")); ddlMotnh.Items.Add(new ListItem("April-" + DateTime.Now.Year, "4")); ddlMotnh.Items.Add(new ListItem("May-" + DateTime.Now.Year, "5")); ddlMotnh.Items.Add(new ListItem("June-" + DateTime.Now.Year, "6")); ddlMotnh.Items.Add(new ListItem("July-" + DateTime.Now.Year, "7")); ddlMotnh.Items.Add(new ListItem("August-" + DateTime.Now.Year, "8")); ddlMotnh.Items.Add(new ListItem("Septeber-" + DateTime.Now.Year, "9")); ddlMotnh.Items.Add(new ListItem("October-" + DateTime.Now.Year, "10")); ddlMotnh.Items.Add(new ListItem("November-" + DateTime.Now.Year, "11")); ddlMotnh.Items.Add(new ListItem("December-" + DateTime.Now.Year, "12")); } protected void weekWithDate_SelectedIndexChanged(object sender, EventArgs e) { ddlweekWithDate.Items.Clear(); int month = Convert.ToInt32(ddlMotnh.SelectedValue); DateTime beginDate= new DateTime(DateTime.Now.Year,month,1); int beginDay = beginDate.Date.Day; int noOfDay = System.DateTime.DaysInMonth(DateTime.Now.Year, month); int weekNo=1; int weekStartDate = 1; string str = ""; while (beginDay&lt;=noOfDay) { str = "week " + weekNo.ToString()+"["+weekStartDate; int newWeekN0 = GetWeekOfMonth(beginDate); if(weekNo==newWeekN0) { } else { str += "-" + beginDate.AddDays(-1).Day + "]"; ddlweekWithDate.Items.Add(new ListItem(str, newWeekN0.ToString())); weekNo = newWeekN0; weekStartDate = beginDate.Date.Day; } beginDate = beginDate.AddDays(1); beginDay++; } if(!str.Contains("]")) { str += "-" + noOfDay + "]"; ddlweekWithDate.Items.Add(new ListItem(str, weekNo.ToString())); } } public static int GetWeekOfMonth(DateTime date) { DateTime beginningOfMonth = new DateTime(date.Year, date.Month, 1); while (date.Date.AddDays(1).DayOfWeek != CultureInfo.CurrentCulture.DateTimeFormat.FirstDayOfWeek) date = date.AddDays(1); return (int)Math.Truncate((double)date.Subtract(beginningOfMonth).TotalDays / 7f) + 1; } </code></pre> <p>this is the html</p> <pre><code>&lt;asp:DropDownList runat="server" ID="ddlMotnh" AutoPostBack="True" onselectedindexchanged="weekWithDate_SelectedIndexChanged"/&gt; &lt;asp:DropDownList runat="server" ID="ddlweekWithDate" /&gt; </code></pre> <p>It works here fine. just convert this c# code to VB for ur purpose</p>
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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