tailieunhanh - Professional ASP.NET 3.5 in C# and Visual Basic Part 28

Professional in C# and Visual Basic Part 28. Building on the revolutionary release, adds several key new developer features including AJAX, LINQ, and a new CSS designer in Visual Web Developer 2008. The dramatic reduction in code that developers realized from the more than 50 new server controls in now allows developers the time to make their applications more interactive with AJAX, to work with data in their preferred language with LINQ, and to build visually attractive and consistent standards-based sites with CSS. . | Chapter 4 Validation Server Controls end user clicks a button on the page. Listing 4-25 shows an example of separating the validation controls on a user group page into different buckets. Listing 4-25 Using the ValidationGroup property @ Page Language VB html xmlns http 1999 xhtml head runat server title Validation Groups title head body form id form1 runat server div h1 St. Louis .NET User Group h1 p Username asp TextBox ID TextBox1 Runat server asp TextBox nbsp Password asp TextBox ID TextBox2 Runat server TextMode Password asp TextBox nbsp asp Button ID Button1 Runat server Text Login ValidationGroup Login br asp RequiredFieldValidator ID RequiredFieldValidator1 Runat server Text You must submit a username ControlToValidate TextBox1 ValidationGroup Login asp RequiredFieldValidator br asp RequiredFieldValidator ID RequiredFieldValidator2 Runat server Text You must submit a password ControlToValidate TextBox2 ValidationGroup Login asp RequiredFieldValidator p Our main meeting is almost always held on the last Monday of the month. Sometimes due to holidays or other extreme circumstances we move it to another night but that is very rare. Check the home page of the web site for details. The special interest groups meet at other times during the month. Check the SIG page and visit their individual sites for more information. You can also check our calendar page for a summary of events. br p h2 Sign-up for the newsletter h2 p Email asp TextBox ID TextBox3 Runat server asp TextBox nbsp asp Button ID Button2 Runat server Text Sign-up ValidationGroup Newsletter nbsp br asp RegularExpressionValidator ID RegularExpressionValidator1 Runat server Text You must submit a correctly formatted email address ControlToValidate TextBox3 ValidationGroup Newsletter ValidationExpression w - . w @ w -. w . w -. w asp RegularExpressionValidator br 224 Chapter 4 Validation Server Controls asp RequiredFieldValidator ID RequiredFieldValidator3 Runat server Text You forgot your .

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