Disabling ViewState For A Server Control?
Apr 1, 2010
I thought disabling ViewState for a server control would cause this control not to keep its state after a postback. I thought the same would happen if I disable ViewState for the whole page.
However, I tried to create an example to show this to a colleague and was puzzled when a textbox on a page would keep is state (in this case its Text property) after one or more postbacks, even when ViewState is disabled everywhere (both at Page level and Server Control level). Please see the code below:
[Code]....
I can keep pressing the Post back! button and every value typed on the textbox is still there after the postback(s). I'm using VS 2008.
After this example I now assume I don't understand ViewState as I thought I was.
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Apr 1, 2010
I have a web page which is using PasswordRecovery control.Its working fine but I have a scenario in which I have to disable Viewstate for the whole application.Now after disabling viewstate when I visit the webpage I have noticed that PasswordRecovery controls is not working (Every times when I submit the default button to go to step 2, the postback occur but not moving to step 2).
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Dec 31, 2010
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Sep 13, 2010
I have a page that has two drop down lists on it and a button. All controls sit in an update panel. The first drop down list (ddl1) contains a lot of values which caused a huge viewstate so I disabled viewstate on it. In the page oninit event I populate the drop down list every time the page is posted back. This all seems to work fine, it shows all the values and I can access the selected value in my event handler.
ddl1 has the autopostback attribute set to true so when its value changes the second drop down list (ddl2) is populated with some values that depend on the selection in ddl1. This also works fine, the values in ddl2 change when I select a value in ddl1.
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If I enable viewstate on ddl1 this all works fine. Could anyone point me to what I'm doing wrong?
Here is the code executed by the ddl2 postback:
[Code]....
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Sep 22, 2010
I have a question regarding disabling viewstate.
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Dec 3, 2010
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Oct 9, 2010
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[Code]....
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Aug 21, 2010
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MyControl.ascx:
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="MyControl.ascx.cs" Inherits="DynamicControls.Controls.MyControl" %>
<div class="box"> [code]....
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Mar 8, 2010
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Mar 24, 2011
I have a popup extender that shows when an edit button in a grid is clicked. I am disabling the checkbox and submit button when a particular row is clicked with sone validation. When I close the popup and show again by pressing button on another row the controls are still disabled. Why are these controls properties set permanently on entering the if condition ?
button click event for button on the panel that pops up on a button press in grid
[Code]....
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Aug 12, 2010
When debugging my website project I usually go to start options in the web project's properties and select 'Don't open a page' and 'Use custom server' with a url that's in my host file pointing to my local IIS.
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Jan 3, 2010
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Mar 27, 2010
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Dec 2, 2010
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Mar 27, 2011
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Nov 9, 2010
I am using a DetailsView control. I am trying to disable some bound controls programmatically.
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Feb 9, 2010
I want to be able to find the old value of a asp.net control (textbox, checkbox etc) without relying on events (e.g. OnTextChange event). Something like "someTextboxControl.OldText" would be perfect! I imagine that it is stored in the viewstate and need to somehow get at it via a custom control.
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Jan 11, 2011
I have problem getting values from viewstate in GetTopThemes.
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ID="sourceGetTopThemes"
runat="server"
TypeName="DBConnection"
SelectMethod="GetTopThemes"
EnableViewState="true"></asp:ObjectDataSource>
[Code]....
}
[Code]....
when the page is not Posted back, I saved all values in the viewstate.
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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?
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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.
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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.
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Jan 21, 2011
<asp:TextBox ID="TextBox1" runat="server" EnableViewState="false" />
<asp:Button ID="Button1" runat="server" Text="Button" />
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Feb 16, 2011
I am having issues with my dynamically loaded control's events.Here is how I am loading the control:
protected void Page_Load(object sender, EventArgs e)
{
LoadSubPageEditTemplate();
}
protected void LoadSubPageEditTemplate()
{
pnlPageTemplate.Controls.Clear();
BaseOfferAdmin adminControl = (BaseOfferAdmin)this.LoadControl("~/Controls/SingleOfferAdmin.ascx");
if (adminControl != null)
{
adminControl.ID = "Control_ID"
pnlPageTemplate.Controls.Add(adminControl);
}
}
}
The LoadSubPageEditTemplate() is also fired from a button event on the page, since I have to update it after the button event has executed.
The control loads perfectly, I have tested it with a basic button and the postback fires as expected. However, I am getting weird results with CheckBoxes.
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The CheckedChanged event only fires when the Checkbox is checked, which I guess means there is some issue with my control viewstate. If I have multiple checkboxes on the page, and one creates a postback, the checkchanged event is fired for each checkbox that is checked.
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Nov 2, 2010
Hows does one move viewstate to the MSSQL 2005 server? Asp.net 2.0 Ajax project.
Can it be only done for a single aspx page or a group of pages, of does it have to be the whole application?
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