Understanding ASP.NET View State. Scott Mitchell 4GuysFromRolla.com May 2004 Applies to: Microsoft® ASP.NET Microsoft® Visual Studio® .NET Summary: Scott Mitchell looks at the benefits of and confusion around View State in Microsoft® ASP.NET. In addition, he shows you how you can interpret (and protect) the data stored in View State. (25 printed pages) Click here to download the code sample for this article. Contents IntroductionThe ASP.NET Page Life CycleThe Role of View StateView State and Dynamically Added ControlsThe ViewState PropertyTiming the Tracking of View StateStoring Information in the Page's ViewState PropertyThe Cost of View StateDisabling the View StateSpecifying Where to Persist the View StateParsing the View StateView State and Security ImplicationsConclusion Introduction Microsoft® ASP.NET view state, in a nutshell, is the technique used by an ASP.NET Web page to persist changes to the state of a Web Form across postbacks.
This article aims to be an in-depth examination of the ASP.NET view state. Figure 1. Using the Wizard control as a sidebar navigator - Raj Kaimal. You can easily transform the Wizard control as a sidebar navigator by simply hiding the navigation buttons at the bottom as shown below. To do this, add a Wizard control to your page. Under "Wizard Tasks", convert the StartNavigation, StepNavigation and FinishNavigation contents to templates. View the source of the page and make the navigation buttons hidden. <asp:Button ID="StartNextButton" runat="server" CommandName="MoveNext" Text="Next" Visible="false"/> <asp:Button ID="StepPreviousButton" runat="server" CausesValidation="False" CommandName="MovePrevious" Text="Previous" Visible="false"/> <asp:Button ID="StepNextButton" runat="server" CommandName="MoveNext" Text="Next" <asp:Button ID="FinishPreviousButton" runat="server" CausesValidation="False" CommandName="MovePrevious" Text="Previous" Visible="False"/> <asp:Button ID="FinishButton" runat="server" CommandName="MoveComplete" Text="Finish" You can now start adding controls into each "wizard step".
Show a popup using PopUpExtender on MouseOver event of an <asp:image> - ASP.NET Forums. ASP.NET.4GuysFromRolla.com: Examining ASP.NET 2.0's Site Navigation - Part 1. By Scott Mitchell Introduction Any website that is composed of more than one page needs some sort of navigation user interface. A navigation user interface might be as simple as static hyperlinks to the other pages in the site, or might involve the use of menus or trees. But before a navigation user interface can be created for a site, the site's logical structure must first be defined. (This logical structure is often referred to as a site map.)
Once the site map has been defined, the site's navigation user interface can be created. Prior to ASP.NET 2.0, developers typically rolled their own site navigation solutions. Site Navigation in ASP.NET 1.x ASP.NET version 1.x did not provide any built-in site navigation support; therefore, most developers implemented their own site navigation functionality.
After deciding what information needed to be saved to represent the site's structure, along with how this information was going to be serialized (database? Site Navigation in ASP.NET 2.0. QuickStart Tutorial. To access the ASP.NET 1.0 Tutorials hosted at DotNetJunkies.com, click here. The ASP.NET QuickStart is a series of ASP.NET samples and supporting commentary designed to quickly acquaint developers with the syntax, architecture, and power of the ASP.NET Web programming framework. The QuickStart samples are designed to be short, easy-to-understand illustrations of ASP.NET features. By the time you finish reading this tutorial, you will be familiar with the broad range of the new features in ASP.NET 2.0, as well as the features that were supported in earlier versions. Release Note This version of the Quickstart tutorial provides just an overview of some of the exciting new features in the new ASP.NET 2.0 Framework.
What Level of Expertise Is Assumed in the QuickStart? This Quickstart assumes that you are familiar with basic Web programming fundamentals such as HTML and web site organization. We hope you enjoy this new release as much as we enjoyed building it! ASP.Net 2.0 - Master Pages: Tips, Tricks, and Traps. Master pages are a great addition to the ASP.NET feature set. Master pages help us build consistent and maintainable user interfaces. Master pages, however, are not without their quirks.
Sometimes master page behavior is surprising, and indeed the very name master page can be a bit misleading. In this article, we are going to examine some of the common problems developers run into when using master pages, and demonstrate some practical advice for making effective use of master pages. To make use of master pages, we first need to understand how master pages work. When a web request arrives for an ASP.NET web form using a master page, the content page (.aspx) and master page (.master) merge their content together to produce a single page.
The master page contains some common elements, like a head tag. The web form contains a single Content control, which in turn is the proud parent of a Label. Protectedvoid Page_Load(object sender, EventArgs e){ MasterPageFile = "~/foo";} using System; Design Considerations for Cross Page Post Backs in ASP.NET 2.0. In ASP.NET we’ve become accustomed to web forms posting back only to themselves. Since this behavior tends to create big balls of mud, we’ve looked for ways to push data between forms. Imagine a web form requiring a user to enter a parameter into a TextBox control. An excerpt might look like the following. <asp:RequiredFieldValidator ID="ParameterValidator" runat="server" ControlToValidate="Parameter" EnableClientScript="False" ErrorMessage="Required Field"/> Note EnableClientScript=false in the validator. Response.Redirect One way to get this parameter to a second form would be the Response.Redirect approach.
Protected void Redirect_Click(object sender, EventArgs e) if (Page.IsValid) Response.Redirect( "destination.aspx? Server.UrlEncode(TextBox1.Text) This parameter is easy to pick up in the destination web form. protected void Page_Load(object sender, EventArgs e) string parameter = Request["parameter"]; if(! // party on the parameter Server.Transfer Server.Transfer("destination.aspx"); as TextBox;