Databases Reference
In-Depth Information
LISTING 3.7
Extended DateTime_Edit Field Template (Markup)
<%@ Control Language=”C#” CodeBehind=”DateTime_Edit.ascx.cs”
Inherits=”WebApplication.DynamicData.FieldTemplates.DateTime_EditField” %>
<asp:TextBox ID=”textBox” runat=”server” Text='<%# FieldValueEditString %>'
Columns=”20” />
<asp:ImageButton ID=”calendarButton” runat=”server”
ImageUrl=”../Content/Images/Calendar.png” />
<ajax:CalendarExtender runat=”server” TargetControlID=”textBox”
PopupButtonID=”calendarButton” />
<asp:RequiredFieldValidator runat=”server” ID=”requiredFieldValidator”
ControlToValidate=”textBox” Enabled=”false” />
<asp:RegularExpressionValidator runat=”server” ID=”regularExpressionValidator”
ControlToValidate=”textBox” Enabled=”false” />
<asp:DynamicValidator runat=”server” ID=”dynamicValidator”
ControlToValidate=”textBox” />
<asp:CustomValidator runat=”server” ID=”dateValidator” ControlToValidate=”textBox”
EnableClientScript=”false” Enabled=”false”
OnServerValidate=”DateValidator_ServerValidate” />
Notice that this example uses a custom
ajax:
tag prefix with the
CalendarExtender
without actually registering it. We could have used the ASP.NET
<%@ Register %>
directive
to register this tag prefix directly in the
DateTime_Edit.ascx
. However, because the AJAX
Control Toolkit is used in other field templates of this sample project, it is better to regis-
ter it in the
Web.config
as shown in Listing 3.8. This makes the AJAX controls available in
all pages and controls of the web application and helps you avoid having to register the
same tag prefix in multiple pages and user controls.
LISTING 3.8
Registering AJAX Controls in the Web Configuration File
<?xml version=”1.0”?>
<configuration>
<system.web>
<compilation debug=”true” targetFramework=”4.0”/>
<pages styleSheetTheme=”Default”>
<controls>
<add tagPrefix=”ajax” assembly=”AjaxControlToolkit”
namespace=”AjaxControlToolkit”/>
</controls>
</pages>
</system.web>
<system.webServer>
<modules runAllManagedModulesForAllRequests=”true”/>
</system.webServer>
<connectionStrings>
