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For most people, pop-up windows are one of the Web s most annoying characteristics Usually, they deliver advertisements, but sometimes they serve the more valid purpose of providing helpful information or inviting the user to participate in a survey or promotional offer A related variant is the pop-under window, which displays the new window underneath the current window This way, the advertisement doesn t distract the user until the original browser window is closed It s fairly easy to show a pop-up window by using the windowopen() function in a JavaScript block Here s an example: <script type="text/javascript"> windowopen('http://wwwapresscom', 'myWindow', toolbar=0, height=500, width=800, resizable=1, scrollbars=1'); windowfocus(); </script> The windowopen() function accepts several parameters.

System.Xml.Schema.XmlSchema IXmlSerializable.GetSchema() { return null; } // (Constructors omitted.) }

runat="server" attribute. It is this attribute that allows ASP .NET to process them and translate them into instances of the corresponding .NET class. For this reason, the HTML server controls are a good option if you re converting your existing HTML or ASP page to an ASP .NET web form. Table 4-6. HTML Server Control Classes

They include the link for the new page and the frame name of the window (which is important if you want to load a new document into that frame later, through another link) The third parameter is a comma-separated string of attributes that configure the style and size of the pop-up window These attributes can include any of the following: height and width, which are set to pixel values toolbar and menuBar, which can be set to 1 or 0 (or yes or no) depending on whether you want to display these elements resizable, which can be set to 1 or 0 depending on whether you want a fixed or resizable window border scrollbars, which can be set to 1 or 0 depending on whether you want to show scrollbars in the pop-up window As with any other JavaScript code, you can add a <script> block that uses the window.

Href, Target, Title, Name, ServerClick event CausesValidation, ValidationGroup, ServerClick event Name, Enctype, Method, Target, DefaultButton, DefaultFocus Align, Alt, Border, Height, Src, Width Name, Type, Value, CausesValidation, ValidationGroup, ServerClick event Name, Type, Value Name, Type, Value, CausesValidation, ValidationGroup, ServerClick event Checked, Name, Type, Value, ServerClick event Accept, MaxLength, Name, PostedFile, Size, Type, Value Name, Type, Value, ServerChange event Align, Alt, Border, Name, Src, Type, Value, CausesValidation, ValidationGroup, ServerClick event Checked, Name, Type, Value, ServerChange event MaxLength, Name, Type, Value, ServerChange event MaxLength, Name, Type, Value, ServerChange event Multiple, SelectedIndex, Size, Value, DataSource, DataTextField, DataValueField, Items (collection), ServerChange event

Make sure you read the full XML document, including the closing element tags in the ReadXml() method. Otherwise, .NET may throw an exception when you attempt to deserialize the XML.

open() function, or you can use the windowopen() function directly with a JavaScript event attribute You may want to use the same pop-up functionality for several pages and tailor the pop-up URL based on user-specific information For example, you might want to check whether the user has already seen an advertisement before showing it, or you might want to pass the user name to the new window as a query string argument so that it can be incorporated in the pop-up message In these scenarios, you need some level of programmatic control over the pop-up, so it makes sense to create a component that wraps all these details The next example develops a PopUp control to fill this role.

<input type="checkbox" runat="server"> <input type="file" runat="server"> <input type="hidden" runat="server"> <input type="image" runat="server">

Now, if you create a web method like this: [WebMethod()] public EmployeeDetailsCustom GetCustomEmployee() { return new EmployeeDetailsCustom(101, "Joe", "Dabiak"); } here s the XML you ll see: <soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"> <soap:Body> <GetCustomEmployeeResponse xmlns="http://www.apress.com/ProASP.NET/"> <GetCustomEmployeeResult> <Employee xmlns="http://www.apress.com/ProASP.NET/CustomEmployeeDetails"> <Name> <First>Joe</First> <Last>Tester</Last> </Name> <ID>1</ID> </Employee> </GetCustomEmployeeResult> </GetCustomEmployeeResponse> </soap:Body> </soap:Envelope>

Here s the definition for the PopUp control: Public Class PopUp Inherits Control End Class By deriving this component from Control, you gain the ability to add your pop-up to the Toolbox and drop it on a web form at design time To ensure that the PopUp control is as reusable as possible, it provides properties such as Scrollbars, Height, Width, Resizable, Pop, and Url, which allow you to configure the JavaScript that it generates Here s the code for the PopUp properties:.

<input type="radio" runat="server"> <input type="text" runat="server"> <input type="password" runat="server"> <select runat="server">

When using IXmlSerializable, the only serialization attributes that have any effect are the ones you apply to the method and the class declaration. Attributes on individual properties and fields have no effect. However, you could use .NET reflection to check for your own attributes and then use them to tailor the XML markup you generate.