viewstate

Completely remove ViewState for specific pages

二次信任 提交于 2019-11-28 00:44:13
I have a site that features some pages which do not require any post-back functionality. They simply display static HTML and don't even have any associated code. However, since the Master Page has a <form runat="server"> tag which wraps all ContentPlaceHolder s, the resulting HTML always contains the ViewState field, i.e: <input type="hidden" id="__VIEWSTATE" value="/wEPDwUKMjEwNDQyMTMxM2Rk0XhpfvawD3g+fsmZqmeRoPnb9kI=" /> EDIT: I tried both variants of setting EnableViewState on page level with no luck at all: <%@ Page Language="C#" EnableViewState="false" %> <%@ Page Language="C#"

Validation of viewstate MAC failed [duplicate]

限于喜欢 提交于 2019-11-27 23:53:40
问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Setting ViewStateUserKey gives me a “Validation of viewstate MAC failed” error I have applied the solutions of the posts on StackOverflow but they did not work out for my problem. The details of the problem is: Validation of viewstate MAC failed. If this application is hosted by a Web Farm or cluster, ensure that <machineKey> configuration specifies the same validationKey and validation algorithm. AutoGenerate

How to store list of object into ViewState

守給你的承諾、 提交于 2019-11-27 23:42:57
I have a list of type List<JobSeeker> . I want to store it in ViewState. How this can be done? private List<JobSeeker> JobSeekersList { get; set; } Basically you only need to use the get , then on get you either get the posted data from view state, or set it for the first time on the view state. This is the more robust code to avoid all the checks on each call (is view state set, exist etc), and direct saved and use the view state object. // using this const you avoid bugs in mispelling the correct key. const string cJobSeekerNameConst = "JobSeeker_cnst"; public List<JobSeeker> JobSeekersList

How to disable View State MAC globally?

南楼画角 提交于 2019-11-27 23:41:57
问题 I'm tired of including EnableViewStateMac="false" in every page. How to do that globally? 回答1: You can disable it on the <pages> element in the web.config, like this: <configuration> <system.web> <pages enableViewStateMac="False" /> </system.web> </configuration> 回答2: The answer above explain to you how to set it in the Web.Config, but look at MSDN and you will see what it says here: This attribute should never be set to false in a production Web site, even if the application or page does not

Setting ViewStateUserKey gives me a “Validation of viewstate MAC failed” error

[亡魂溺海] 提交于 2019-11-27 23:33:39
I have the following in my BasePage class which all my ASPX pages derive from: protected override void OnInit(EventArgs e) { base.OnInit(e); ViewStateUserKey = Session.SessionID; } I also have a machineKey set in Web.config . I don't think this error is because of a web farm because this happens on my dev machine too. My host has now upgraded to .NET 3.5 SP1. After this update, everytime I compile with the ViewStateUserKey setting above, I constantly get the "Validation of viewstate MAC failed" error on every postback. What am I doing wrong here? Is this setting even necessary anymore with the

Does viewstate expire?

会有一股神秘感。 提交于 2019-11-27 22:46:10
Let's say you have a aspx page that does not rely on session, but does rely on viewstate for persistance between postbacks. If a user is accessing this page, and leaves for a long lunch, will viewstate still be valid when he returns? No ViewState is kept as part of the PostBack process. You can, however, override the Page class's SavePageStateToPersistenceMedium() and LoadPageStateFromPersistenceMedium(), to implement that behavior if desired. For more information read Understanding the ASP.NET ViewState . Note that Page ViewState is stored in the Session so if your Session expires, the

Keeping ViewState in SessionPageStatePersister

自古美人都是妖i 提交于 2019-11-27 21:47:24
问题 I want to keep viewstate of a specific page in session but following code block does not help me, what might I be missing? So here is the code-behind file content of my page; public partial class ConfigurationEditorWebForm : PageBase { protected void Page_Load(object sender, EventArgs e) { } protected override bool VerifyAccess() { return true; } protected override PageStatePersister PageStatePersister { get { return new SessionPageStatePersister(this); } } } 回答1: Note that even after you

“Padding is Invalid and cannot be removed” exception on WebResource.axd

北城余情 提交于 2019-11-27 19:01:33
I have an ASP.NET 2.0 application that is working fine in our local environment. When published to a test server, we're getting intermittent errors on the server. Here's the most common: Padding is invalid and cannot be removed. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Security.Cryptography.CryptographicException: Padding is invalid and cannot be removed. Source Error: An unhandled exception was generated during

ASP.NET: Moving ViewState to bottom of page

人盡茶涼 提交于 2019-11-27 18:46:57
问题 What are the latest and greatest ways to move ViewState to bottom of the page Can this be done in a IHttpHandler that can be specified in the web.config to intercept requests to "*.aspx"? <httpHandlers> <add verb="*" path="*.aspx" type="MyApp.OptimizedPageHandler" /> <httpHandlers> Other options is that this could be done in a IHttpModule , but that is not as performant , as it will intercept all requests. Also it could be done in an a class deriving from the Page or MasterPage -class, but

GridView doesn't remember state between postbacks

好久不见. 提交于 2019-11-27 18:14:26
问题 I have a simple ASP page with databound grid (bound to an object source). The grid is within the page of a wizard and has a 'select' checkbox for each row. In one stage of the wizard, I bind the GridView: protected void Wizard1_NextButtonClick(object sender, WizardNavigationEventArgs e) { ... // Bind and display matches GridViewMatches.EnableViewState = true; GridViewMatches.DataSource = getEmailRecipients(); GridViewMatches.DataBind(); And when the finish button is clicked, I iterate through