Demonstrates supported date patterns

<script runat="server">

   protected void Page_Init(object sender, EventArgs e)
   {
     // establish the Page culture in OnInit, not later in OnLoad
      if (Request.Form[CultureName.UniqueID] != null)  // Get the Hidden field value. Its not yet assigned to CultureName.Value in OnInit
      {
         PageManager1.CultureName = Request.Form[CultureName.UniqueID];
         PageManager1.TransferProperties();
      }
      
   }
   protected void Page_Load(object sender, EventArgs e)
   {
      if (!IsPostBack)
      {
         Datetextbox1.DateValue = DateTime.Today;
         Datetextbox2.DateValue = DateTime.Today;
         Datetextbox3.DateValue = DateTime.Today;
         Datetextbox4.DateValue = DateTime.Today;
         Datetextbox5.DateValue = DateTime.Today;
      }
   }
   protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
   {
     // convert to the new culture
      DateTime vValue1 = Datetextbox1.DateValue;
      DateTime vValue2 = Datetextbox2.DateValue;
      DateTime vValue3 = Datetextbox3.DateValue;
      DateTime vValue4 = Datetextbox4.DateValue;
      DateTime vValue5 = Datetextbox5.DateValue;
      CultureName.Value = DropDownList1.SelectedValue;
      PageManager1.CultureName = CultureName.Value;
      PageManager1.TransferProperties();
      
      Datetextbox1.DateValue = vValue1;
      Datetextbox2.DateValue = vValue2;
      Datetextbox3.DateValue = vValue3;
      Datetextbox4.DateValue = vValue4;
      Datetextbox5.DateValue = vValue5;
     
   }
   
</script>

<h2>DateFormat=Short, AllowMonthNames=Yes</h2>
You can type in the abbreviated month name. It will reformat to show the month number.<br/><br/>
<des:DateTextBox ID="Datetextbox1" runat="server" AllowMonthNames="Yes" />
<des:DataTypeCheckValidator ID="DataTypeCheckValidator1" runat="server"
   ErrorMessage="Bad data" ControlIDToEvaluate="Datetextbox1"/>
<br/>
<br/>
<h2>DateFormat=Short, AllowMonthNames=Shows</h2>
You can type either month name or digits. It reformats to show the month abbreviated name.<br/><br/>
<des:DateTextBox ID="Datetextbox2" runat="server" AllowMonthNames="Show" />
<des:DataTypeCheckValidator ID="DataTypeCheckValidator2" runat="server" ErrorMessage="Bad data"
   ControlIDToEvaluate="Datetextbox2"/>
<br/>
<br/>
<h2>DateFormat=Short, AllowMonthNames=Show+not uppercases</h2>
Normally the abbreviated month name is shown in uppercase. You can have it show in as defined in 
CultureInfo by setting <span class="PropertyName">MonthNamesUppercase</span>="false"<br/><br/>
<des:DateTextBox ID="Datetextbox3" runat="server" AllowMonthNames="Show" MonthNamesUppercase="False" />
<des:DataTypeCheckValidator ID="DataTypeCheckValidator3" runat="server" ErrorMessage="Bad data"
   ControlIDToEvaluate="Datetextbox3"/>
<br/>
<br/>
<h2>DateFormat=Abbreviated</h2>
<des:DateTextBox ID="Datetextbox4" runat="server" DateFormat="Abbreviated" />
<des:DataTypeCheckValidator ID="DataTypeCheckValidator4" runat="server" ErrorMessage="Bad data"
   ControlIDToEvaluate="Datetextbox4"/>
<br/>
<br/>
<h2>DateFormat=Long</h2>
<des:DateTextBox ID="Datetextbox5" runat="server" DateFormat="Long"/>
<des:DataTypeCheckValidator ID="DataTypeCheckValidator5" runat="server" ErrorMessage="Bad data"
   ControlIDToEvaluate="Datetextbox5"/>
<br/>
<br/>
<des:Button ID="Button1" runat="server"></des:Button><br/>
<br/>
Change the culture:
   <asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="true" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
      <asp:ListItem Selected="True" Value="en-US">en-US (United States)</asp:ListItem>
      <asp:ListItem Value="en-GB">en-GB (Great Britain)</asp:ListItem>
      <asp:ListItem Value="fr-CA">fr-CA (French in Canada)</asp:ListItem>
   </asp:DropDownList>
   <des:PageManager ID="PageManager1" runat="server" CultureName="en-US" />
   <asp:HiddenField ID="CultureName" runat="server" Value="en-US" />