Using Update Panel In Page For Partial Page Postbacks?

Dec 30, 2010

I am using update panel in my ASP.net page for partial page postbacks. I have gridview and a button "Export" which on click will call the Export method from the below class. If I remove the update Panel everything will work as expected. But if there is a update panel it will not work and throws this error.

Below is the code for the

using System;
using System.Data;
using System.Configuration;
using System.IO;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

[Code]....

View 1 Replies


Similar Messages:

AJAX :: Update Panel In Master Page Is Affecting Another Update Panel In Child Page?

Aug 4, 2010

i have my master page with one update panel working like a banner, so when the timer do tick every 5 sec

the image change. That works fine, but i have an update panel in my index page, this update panel works with some buttons that change the text inside the panel when click.

Now, the problem.

When i click one button to change the text and the banner change, the text returns to his default text. The update in master page is affecting the update on index page.

View 2 Replies

AJAX :: Page.IsPostBack Returns False On Partial Page Update?

Apr 16, 2010

I have a page with a (gridview nested within a gridview) in an UpdatePanel (UpdateMode="Conditional"). The nested gridview drops down when you click on an arrow and then you can click on each subgrid rows command field. The gridviews are loaded from the Page_Load event. When I click on the commandfield in the subgrid the Page_Load fires during the partial page postback. From what I have read this is normal with UpdatePanels. But What I don't understand is why both Page.IsPostBack and ScriptManager.GetCurrent(Page).IsInAsyncPostBack test false after I click on the command field in my grid. I need to stop the rebinding of the gridviews ( which causes the subgrid to collapse ) when the command field is clicked.Also: I am using MasterPages and the <asp:ScriptManager ID="ScriptManager1" runat="server"> </asp:ScriptManager> is located in my mater page form section.Would anyone have any suggestions how to test if a partial page postback is occuringHere is a link to the page source: http://pastebin.org/153774here is a link to the code behind: http://pastebin.org/153781

View 2 Replies

AJAX :: How To Use The Update Panel To Validate Fields And Do No Postbacks

Jul 17, 2010

I have an CONTACTS page.It has the 4 textboxes, the SEND button and the validation control for the 4 textboxes.How can i use an update panel, so when the user clicks on the SEND BUTTON, it does not do a postback ?

View 2 Replies

Is Is Possible To Initiate A Partial Page Update Whenever A Client Makes An Update

Mar 17, 2010

Is is possible to initiate a partial page update whenever a client makes an update (say inserrting a record) and this will update the panel of all clients who are actually viewing the page ie eliminate the use of a timer control to refresh the panel each second because am getting many problems when using timercontrol.

View 2 Replies

AJAX :: Cannot Select Object In Update Panel After A Number Of Async PostBacks

Jan 9, 2011

I am trying to create a simple web application that uses a barcode scanner to read the barcode and then insert the information into a database. I have been able to get the barcode scanner to read the barcode and place the information into a textbox.

Then using javascript when the enter key is triggered on the scanner it then clicks the button to do a AsyncPostBack on the updatepanel then using scriptManager.RegisterStartupScript I then focus on the text box and then select the text in it ready for a new barcode to be entered.

The problem that I am having is that I can get it to post back 26 times then it will go to error (with no information). If I then add additional controls to the page I can only get it to post back 10 times. Below is my code... I have been pulling my hair out for the last two days.

[Code]....

[Code]....

[Code]....

View 3 Replies

AJAX :: How To Catch Partial Update Start And End Events Of Update Panel On Client Side

Jul 22, 2010

how to catch update panel's request start (before partial updation request is sent to server) and response receive (before update panel is updated) events.

View 1 Replies

Updatepanel - Update Panel In Master Page, Refresh Button In Content Page?

Feb 26, 2011

I have Update panel in Master page:

<asp:ScriptManager id="CartScript" runat="server"></asp:ScriptManager>
<asp:UpdatePanel id="CartBox" runat="server" updateMode="Conditional">
<ContentTemplate> [code]...

But i got same error. how I can add to my Update Panel that Button from Content Page can refresh it?

View 1 Replies

AJAX :: Update Panel And The EnablePartialRendering Set To True On The Page / Page Size

Feb 16, 2010

I have a form, with an update panel and the EnablePartialRendering set to true on the page. Here's my problem, the page size with every AsyncPostBack gets larger, even if my code makes no changes to the markup. It also, never stops... it just keeps growing about 3-4K with every AsyncPostBack. If EnablePartialRendering is set to false, full postbacks do not cause the page size to grow like that. It's like it's sending resources and then never getting rid of them out of the page even though they're not being used because an updated copy has come down.

1.) Is it supposed to work like that?

2.) If it's not, what can I do to not have 4K added to the page size everytime an AsyncPostBack occurs (not again, full PostBacks do not have that same behavior).

3.) This behavior happens whether I compress the ViewState or not (I am using ViewState compression). However, the ViewState size is NOT growing... it's the size of the content in the page that is (I'm monitoring the ViewState size/the Page Size closely).

View 4 Replies

AJAX :: Update Panel: Need To Trigger A Partial Update For Any Event?

Mar 18, 2010

I am building a system for a school project. I currently have several Update Panels on the page that have many different controls on them. I also have a single Label control that i use to display messages to the user. I would like to have this label within an update panel also but there are literally hundreds of triggers that would require it to be updated and i dont want to type an absurd number of triggers for this one control.Is there a way for me to have this one panel update regardless of what happens?

View 2 Replies

AJAX :: Why Use Cascading Drop Down In Partial Update Is Possible Through Update Panel

Jul 29, 2010

i am confused about the fact that if partial update of dropdowns is possible through Update Panel ,then why we should use asp.net ajax Cascading drop down extender ,that has made same task bit complex by making callback to web services ? what is difference between using update panel and cascading drop down extender ?

View 2 Replies

AJAX :: How To Know Postback Was Due To Update Panel's Partial Update

Nov 25, 2010

when postback occurs due to update panel's child control then in page load event how can i know that it was dut to update panel ?i.e., i want to differentiate between general postback and postback due to update panel's child control in page load event .How is that possible ?

View 10 Replies

C# - AJAX Partial Page Update When Displaying A Control?

Mar 8, 2010

I have an interesting problem when using partial page update in asp.net with scriptmanager and a update panel.

My scenario looks like this: I'm using the tab control from the ajax toolkit. I also implemented this control using lazy loading, so that when the page is loaded only the current tab gets loaded all the other tabs don't get rendered, because Im using an UpdatePanel (on a .ascx control) on each of these tabs and when a tab gets selected the updatepanel makes a async postback to load the content for a selected tab.

On one of my tabs Im using a combobox control from obout.com, and it doesn't work. Now I know why it doesn't work. It doesn't work because the control is shown via a partial page refresh, but to correctly display the control it has to do some "magic" that is - register some .css and .js includes on the page (in the head I guess)....but because I load this control via async page refresh.

View 2 Replies

AJAX :: Update Panel & Update Progress In User Control / Multiple Instances On Same Page

Feb 16, 2010

I have a user control, that has an update panel and update progress control in it.

I use this user control in more than 1 location on the same page.... problem is, when ucA posts back, I see the update progress control for both ucA and ucB. I assume this is because it is a user control and the update panel and progress are named the same?

Either way - how do I make it so that the update progress only displays for the proper user control?

View 3 Replies

AJAX :: Using A User Control's UpdatePanel.Update() From A Page-level Update Panel's Function Call?

Jul 14, 2010

I've exempted the irrelevant bits of code. Essentially, I am trying to change the URL of an image control inside of an update panel inside of a custom user control from a function called inside an update panel from my main page. Using UpdatePanel.Update() isn't working: I end up waiting for the next full page POST to occur before all the updates I make to CustomControl from buttons within the main page's update panel are visible. I verified that Update() was being called via the debugger: there are no issues in that department.

Here, you can see Custom Control and the Button declared. The button is in an update panel to avoid giving a full POST and causing the whole page to reload.

<cust:CustomControl runat="server" ID="CustomControl1">
<asp:UpdatePanel runat="server" ID="UpdatePanel1"> <ContentTemplate>
<asp:Button id="Button1" runat="server" OnClick="DoStuff" />
</ContentTemplate> </asp:UpdatePanel>

This control stores images within their own seperate update panels because rerendering the images is very slow (it requires processing arrays of millions of datapoints) and the user only ever needs to modify one image at a time. I'm using Image1 as an example.

[Code]....

View 3 Replies

AJAX :: Partial Postback And Update Panel?

Dec 4, 2010

i have one label out of update panel and one button inside update panel. in button click event i update the label text. when i run the code and click on button then partial postback occur and button click event fire but label value is not change. if i put the label too in the update panel then label value change at the time of button click. i do not understand why label value is not getting updated. suppose if i want that label should stay out of update panel and label value should change at the time of partial postback then how to write the code. i dont want put the label in any update panel.

View 5 Replies

Web Forms :: Dynamically Created Javascript To Fellow A Partial Page Update?

Mar 1, 2011

Ive came into a problem when using partial page update. The javascript doesn't fellow. What i want to do is when i call a partial page update some of the update have controls that require a javascript code to be executed. When the partial update is done that javascript isnt here and cannot be found. So what is the best way to make a javascript file to fellow a partial page update ?

View 1 Replies

DataSource Controls :: Dynamic SelectCommand Won't Be Passed After Partial Page Update?

Mar 11, 2010

I have a page has Listview and Datapager inside UpdatePanel. When I refresh the new SQL results and bind by pressing link buton outside of the update panel, I get correct results. (get new SQLselect statment, rebind to listview, update updatepanel)

However, the SelectCommand is not bound right or some other reason, if I press datapager, I won't get no results.

I'm guessing it's caused by not passing new dynamic selectcommand since my datapager and listview works first update.

View 4 Replies

AJAX :: Update A DIV Without Updating The Whole Page Using Update Panel?

Jan 12, 2011

Above is my code to call a hidden DIV:

[Code]....

And above the html for the DIV:

[Code]....

on Code behind:

[Code]....

Now i was trying to use an UPDATE PANEL, in order to when i click button Save, only the DIV updates. Because the whole DIV is closing when i click on SAVE, even if i put a div in an update panel.

View 4 Replies

AJAX :: Update A Section In Page Except Update Panel?

Aug 21, 2013

is there any other way by which we can update a section in page except Update Panel?

View 1 Replies

AJAX :: Which Update Panel Cause Partial Post Back In Javascript?

Jul 22, 2010

I have multiple update panels in a page. how I can know which update panel caused partial page updation on client side before page is partially updated?

View 3 Replies

How To Raise Load Event On Previous Page With Cross Page Postbacks

Feb 21, 2010

I'm working on a wizard-like set of page, and I'm relying on cross page postbacks to navigate between them.

I need to be able to trigger the Load event on the previous page in order to save the form data for the page.

I've been told that for situations of this sort all I had to do is access the PreviousPage property in the destination page and this would trigger the load event of the previous page but for some reason this doesn't seem to be working.

Is there anything else I can do to explicitly trigger the load event on the previouspage if the PreviousPage property is not null?

View 3 Replies

Cross-page Postbacks And Back Again Retaining Data From Source Page?

Sep 17, 2010

Is it possible to use cross-page postbacks (or a similar method, perhaps Server.Transfer) to post form data (say, Data-set A) to a page, which then allows the user to add some additional information (say, Data-set B) and then postback to the original page the complete set of data (A+B) which then flows through the normal event execution process, similar to as if all data A+B was submitted on the original page to itself in a normal postback?

I don't want the second page to have any type knowledge of the original page, it just needs to supply two additional feeds and send the data on. This way different pages and controls could use this method for gaining additional data.

For example:

Page 1 could have a form with various text inputs, and two hidden fields Hidden1 + Hidden2 which are empty.

When the form on page 1 is submitted the user is presented with page 2, they complete that page and then all the form data from page 1 is posted back to page 1 but with the hidden fields 1 + 2 complete. Page 1 then has all the information it needs to complete.

I'm thinking that perhaps page 2 just needs to use PreviousPage and take its post data, add to it and then post it back to page 1, but as if it came from Page 1 and not Page 2. But I'm not sure if this is possible and ASP.NET might read this as tampered data?

View 1 Replies

AJAX :: Partial Refresh Of Update Panel Using Do_postback() Changing Position?

May 29, 2010

I am facing a critical condition wherein I have a web page and a User control within it.I need to set the value of two labels in the user control using values collected on the server side.However whatever I do on the server side or client side I do see on the webpage although I can see in the code that it is being set.So Now I am just sending the value from the server side and setting it on the client side.I am sending from server side using,

if(rowcnt > 0 && rowcnt1 > 0 && (selectedh != string.Empty))
ScriptManager.RegisterClientScriptBlock(this.updMainTable, typeof(string), "test1", "showRehabMain('"+val+"')", true);

[code]...

View 2 Replies

Web Forms :: Partial Postback Not Working For GridView Inside Update Panel

Jun 4, 2012

I removed the Trigger section the partial post back does not occur when I click add button on footertemplate of the gridview.

View 1 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved