viewstate

Getting values from viewstate using JQuery?

試著忘記壹切 提交于 2019-11-30 15:56:56
Is it possible to get a particular value out of viewstate using JQuery.... I'm working on a custom control. It uses jquery, embedded into the control itself to manipulate the value in a text box... I need to implement a minimum and maximum values... the properties are set up in the control, and are stored in viewstate... Instead of using hidden input fields, i'd much rather just pull the info out of viewstate and use it that way.... is it at all possible? Thanks You could also output the min and max as custom attributes of the textbox (and even namespace them if you want to retain xhtml

JQuery BlockUI with UpdatePanel Viewstate Issue

人走茶凉 提交于 2019-11-30 15:48:53
问题 I am using BlockUI to show a modal. Within the blocked modal I have an update panel. Within the update panel I have a textbox and a button that submits the content back to the server. Everything works fine up to this point (the blockUI is called, the modal appears, and the button performs the postback). However, when the button's click event is fired the value for the textbox is consistently empty even if text was entered. When the update panel updates the textbox shows up blank. It appears

In ASP.Net, I sometimes get the following error - Viewstate verification failed. Reason: The viewstate supplied failed integrity check

蹲街弑〆低调 提交于 2019-11-30 14:35:51
Background: I developed a web app in ASP.Net 3.5 in C#. It runs great but now a few users have reported that they recieve an error sometimes. I have tried to duplicate the error but it has been hard. One time though when I let the app sit I came back later and tried to move it along and it errored out. I would think that has something to do with the timeout but I am using the view state. Any ideas? When I look at the eventLog I do see the following error entry. Thank You for your help and ideas! John My event log has the following errors: Event code: 4005 Event message: Forms authentication

Difference between viewbag and viewstate?

不打扰是莪最后的温柔 提交于 2019-11-30 13:13:11
问题 Is there a functional difference between ViewState in Webforms and ViewBag in MVC? They seem to be the "same thing". And can be used in the same ways. I ask because MVC promotes the stateless Web and not stuffing data in the page causing bloat and slower performance. But it seems that you can do that in MVC as well. All they did, seemingly, is just give it a new name. 回答1: ViewState in Web Forms was serializing form data into a hidden, encrypted field in the form, so data could be re-bound on

Minimizing viewstate- confused by `EnableViewState` and `ViewStateMode` in asp.net 4.0

蓝咒 提交于 2019-11-30 11:16:09
I'm trying to clean up an older ASP.NET WebForms site that has ViewState enabled everywhere. This is a performance issue - huge viewstates cause noticeable submit delays. But most of the forms don't really seem to need ViewState except for some complex control & form data. Even forms with no input controls, though, generate big viewstates because I guess asp.net is storing all kinds of metatdata about every single server control. But the visibility state, etc, is all controlled in code so I think I can eliminate a lot. It's pretty onerous to add EnableViewState="false" to every single control

I have one issue for ViewState

浪子不回头ぞ 提交于 2019-11-30 09:39:11
问题 What is the meaning of EnableViewState="false" and EnableViewState="true" ? I Know EnableViewState="false" = turn Off the ViewState and also EnableViewState="true" = turn On the ViewState But What is the difference between EnableViewState="false" and EnableViewState="true" ? I tried this code: <form runat="server"> <asp:TextBox ID="TextBox1" EnableViewState="true" runat="server"> </asp:TextBox><asp:Button ID="Button1" runat="server" Text="Button" /> <asp:Label ID="Label1" runat="server" Text=

Validation of viewstate MAC failed when on page for 20+ minutes

那年仲夏 提交于 2019-11-30 09:21:49
If you open a web page on one of the websites hosted on our server, leave it for 20 minutes and then submit a form, a Validation of viewstate MAC failed. error occurs. What possible reasons could there be for this? There's a few reasons this can happen: Auto-Generated Machine Keys: If your application pools have the default idle timeout of 20 minutes AND you're using auto-generated validation and decryption keys then each time the pool starts it will generate a new set of keys. This invalidates the browser's encrypted viewstate. You'll also find that forms authentication tickets for persistent

What is ViewState? How is it encoded? Is it encrypted? Who uses ViewState?

∥☆過路亽.° 提交于 2019-11-30 06:52:24
What is ViewState? How is it encoded? Is it encrypted? Who uses ViewState? If you really want to understand ViewState (not just what it is used for), then you may want to read this fabulous article (which I, unfortunately, am not the author of :-). Beware, though, it is a bit dated, but still a very good read. View state is a kind of hash map (or at least you can think of it that way) that ASP.NET uses to store all the temporary information about a page - like what options are currently chosen in each select box, what values are there in each text box, which panel are open, etc. You can also

Difference between viewbag and viewstate?

我的梦境 提交于 2019-11-30 06:49:14
Is there a functional difference between ViewState in Webforms and ViewBag in MVC? They seem to be the "same thing". And can be used in the same ways. I ask because MVC promotes the stateless Web and not stuffing data in the page causing bloat and slower performance. But it seems that you can do that in MVC as well. All they did, seemingly, is just give it a new name. ViewState in Web Forms was serializing form data into a hidden, encrypted field in the form, so data could be re-bound on the postback. ViewBag/ViewData is a dictionary where you can "stuff" data into. For example, you might add

Problem with dynamic controls in .NET

余生颓废 提交于 2019-11-30 06:23:33
问题 Problem with dynamic controls Hello all, I'm wanting to create some dynamic controls, and have them persist their viewstate across page loads. Easy enough, right? All I have to do is re-create the controls upon each page load, using the same IDs. HOWEVER, here's the catch - in my PreRender event, I'm wanting to clear the controls collection, and then recreate the dynamic controls with new values. The reasons for this are complicated, and it would probably take me about a page or so to explain