C# - Page With ViewState Disabled Still Be Validating A Viewstate Field?
Sep 24, 2010
I have a shopping cart page (Cart.aspx) that has a button that will (sometimes) post to a third party payment gateway, if payment is necessary. The payment gateway will process the payment and then do a silent post to my website (Order.aspx) so I can update the order status.
Order.aspx always throws an invalid viewstate error, even though viewstate is disabled on the page.
What's happening is that Cart.aspx (which has viewstate enabled) posts to the payment gateway, and the gateway will post it back as part of the silent post. Even though Order.aspx has viewstate disabled and validation disabled, it still tries to validate the __viewstate field it's being given.
I know setting EnableViewState=false will disable the rendering of the __viewstate field, but if another page provides the field, shouldn't it still skip validation? I tried calling ViewState.Clear() on the Page_Init event of Order.aspx, but ViewState is apparently empty. how to get around this? I don't want to disable ViewState on Cart.aspx (in some cases it may be necessary), but I can't figure out how to clear it on Order.aspx.
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Apr 30, 2010
I have been getting this error a lot lately with some of my users, and I had a couple of concerns with view state and I have read so many articles but I am still lost..
1. I use masterpage on all the pages and I need viewstate for some of the pages but..
There is a page where a user will fill out the information and then submit this data to a cgi server, and it is where I get most of the Client Disconnected errors, what would happen if I disable viewstate when they click on that button?
Now when a user browses from one page to another, does the view state from the previous page get deleted? If not how would I delete it?
Does the master page have its own viewstate? Would I be able to make sure none of items on my master page are using the viewstate?
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Apr 29, 2010
I have a repeater which viewstate is disabled, inside i have a textbox and a submit button. Before disabling viewstate i could get the text from the textbox in the submit buttons onClick event. But now it doesnt seem to work.
I dont want to enable viewstate on the repeater as my site get really heavy then. How can I get the value form the textbox when I click the submit button? using .net 3.5
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May 14, 2010
I have a ASP.NET 4.0 webforms site where I have the MasterPage so it is set to ViewStateMode="Disabled" along with the content placeholders being set similarly.
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Feb 24, 2010
I tried this in many scenarios and everytime the ViewState is disabled page-wide, NoBot raises an internal NullReferenceException and always returns InvalidBadSession. I suspect that you are referencing the ViewState and it returns a null value which is then used. It's probably a good idea to think about a way that avoids using ViewState.
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Mar 19, 2011
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Oct 18, 2010
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I am pasting the code bello. To reproduce the issues I am mentioning change the selected value of the dropdownlist and then click any button the selected indexchanged event fires even thought we didnot change the value.
[Code]....
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Jul 16, 2010
After witnessing some strange behvior I'm confused about ViewState again :/
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That's not happening, I created a textbox and button and a label.
The button was set to copy contents of text box into the label when I pressed it.
I did and the text was populated into the label and remained in the textbox?
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[Code]....
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Jan 23, 2011
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Edit:
Usercontrol is there in the page markup. I am not loading it dynamically. I have a page EditFacilityworkType.aspx. On page I have a usercontrol FacilityWorkTypeDetails.aspx(FacilityWorkTypeDetails1). Inside this usercontrol i have a user control Workflow.aspx(Workflow1)
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public FacilityWorktype FacilityWorkTypeDetails
{
get
{
#region Fill FacilityWorktype
return GetEntityFromControl();
#endregion
}
set
{
PopulateControls(value);
}
}
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FacilityWorkTypeDetails1.FacilityWorkTypeDetails = facilityWorkType;
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/// <summary>
/// Property to fill entity object from controls on this page
/// </summary>
public WorkFlow WorkFlowDetails
{
get
{
return GetEntityFromControls();
}
set
{
BindTranscriptionMethodDDL(ddlTranscMethod);
PopulateControls(value);
}
}
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private void PopulateControls(FacilityWorktype value)
{
Workflow1.WorkFlowDetails = value.FacilityWorkTypeWorkFlow;
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Now when i am retrieving values from
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{
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//workFlow is null
}
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Mar 4, 2010
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>
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I have a page in ASP.NET.I have a nested class inside the page.I have a property in this nested class.How can I access the page's viewstate from the property's Set statement?
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