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  • Validation of viewstate MAC failed.

    I get this error if I let the page sit before postback. I've narrowed it down to about or around 5 mins. If I let the page sit any longer than that and it gives me the below error. Any assistance is greatly appreciated. Thanks in advance!!! "Validation of viewstate MAC failed. If this application...
    Posted to State Management (Forum) by fatthippo on 12-17-2007, 12:00 AM
    Filed under: forms, PostBack

  • Supressing the back-button postback prompt?

    Hi everyone, We've re-built our site from scratch in C# .NET. It is heavily database driven with forms and post-back features all over. Because so much of what happens in ASP.NET pages requires a post-back to itself the back button really becomes an issue. On most of our pages when the user does something...
    Posted to Web Forms (Forum) by mase on 04-19-2007, 12:00 AM
    Filed under: PostBack, postback data expiration, forms

  • ASP.Net Navigation/Validation STRANGE PROBLEM

    Heloo everybody I am having a problem in a web application that i am developing. My web application comprises of several form each having a few buttons at the top of the form e.g ADD, EDIT, SAVE, CANCEL etc. for form operations. I also have a textbox on my form in which user may type RECODE_ID directly...
    Posted to Web Forms (Forum) by Dhuka on 03-16-2007, 12:00 AM
    Filed under: multiple buttons, page, page.load, POST, PostBack, postback event handling, query string form, Valdiation Controls, Web Forms, .net, access Web Form from User Control, Asp .net, ASP.NET, ASP.NET 2.0, ASP.NET 2.0 VB.NET, ASP.NET 2.0 webform, controls, event handlin, events, forms, IsPostBack, webform, Webforms, asp.net client side code, validation, form

  • Changing a form's layout based on user response

    I am creating a page where the registered users of the site can select different details. Some of the responses they make on the form require different options to become visible. On the form are three labels and one dropdown list. The option selected on the dropdown list affects what's displayed on one...
    Posted to Web Forms (Forum) by dc_gate on 12-19-2006, 12:00 AM
    Filed under: PostBack, asp.NET 2.0 C#, c#, forms, form, label

  • textbox uneditable on postback in IE8

    I am working on Windows XP Pro SP2 64 bit Edition with VS2008 / 3.5 framework and have noticed that on postback my textboxes are uneditable. In fact, the only thing i can do is switch focus. The caret will only move to the first position in the textbox. I can't highlight with mouse or keys, I can't...
    Posted to Web Forms (Forum) by scott.elliott on 06-30-2009, 12:00 AM
    Filed under: TextBox, forms, PostBack, IE 8.0
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