I have two grids "grid1" and "grid2" and two updatePanels "up1" and "up2". Both the panels have UpdateMode = "Conditional" grid1 is nested in up1 and grid2 is nested in up2 [Code]....
In Code behind : [Code]....
I am using UpdatePanels, but still data will be fetched whenever page loads. How can I handle so the dat will be fetched on ony for the grid which is being updated
I hope this is a really easy question but I'm struggling with it. I have a GridView that has an UpdatePanel within a TemplateField.
The idea is that the user can make simple alterations without a full page load being required.
I have simulated my page functionality in the following example, which simulates a database hit, gridview databinding and updatepanel functionality.
When you press any of the + or - buttons in the GridView, the form controls in the bottom UpdatePanel also post their contents back. I have seen this by using Firebug. On my real page however this is causing excessive bandwidth and is nearly the same as a full postback.
how I can force ONLY the appropriate UpdatePanel's contents to postback for processing, rather than all the UpdatePanels?? I've tried experimenting with Triggers but just can't get it working properly.
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My page includes a button and a GridView bound to a LINQ data object which is bound to a table. when the page loads the gridview gets populated with the data and all work well. The button has an empty method, when I click the button I get en error message "Intenet explorer cannot display the web page" I put a break point at the begining of the method listed below but I get the error message before it gets there. If I remove the gridview than the button works well.
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I do long and slow query to get data to my GridView and I got lot of data, but when I'm changing page it loads as slow as at the start, it loads full data again and again, how to load data once and use paging without data loading?
View 1 RepliesI have been reading a lot about UpdateMode set to Conditional on multiple UpdatePanels on a page. It seems that when set to Conditional only the UpdatePanel affected by the event will refresh. It is not happening on my case and I don't know what am I doing wrong.
This is the scenario. I have 4 updatePanel all set to Conditional. I have external buttons that will call the Update method per each panel but the whole page refreshes when I click on any of the buttons.
Here is a sample code:
code]....
I seem to be having issues trying to programmatically update one of the UpdatePanels on a page i'm developing.Basically what i'm trying to do is...
have one update panel on the master page (used to show summary info like errors and success message) and then a updatepanel on the content pages, all of which are conditional. where its not working (or i'm doing something wrong) is when i call a method in the master page to update its updatepanel to show the new summary message it does nothing.
i.e. (content page)
page_load()...
{
try
{
load content. [code]....
I am having now two UpdatePanels on the same content page. One is a big UpdatePanel and another is a very small one. I can insert the little one content to the big one, but it means some info I don't need to update with Ajax at all will be init two, because of UI issues. What is better for performance? One big UpdatePanel or a small ones?
View 5 RepliesI am using a timer control on one of my updatepanels in the asp.net website.
my problem is that behind the scenes the postback is a full postback, therefore any content that is placed under any other UpdatePanel is refreshed, as well.
How can i specify the timer functionality ONLY to the specific update panel, leaving other update panels, which do not contain a timer, unrefreshed.
using asp.net/vb.net 2005
I want to create an accordion inside a gridview with the following functionality:
The user will only see one field of the gridview initially, the ProductCategoryID. When the page loads it will only query the ProductCategoryID and this will be the only field displayed.
Next when the user clicks on the accordion to expand it inside the gridview I would like to query the database to get all Products that are part of the ProductCategory. I will query using the ProductCategoryID that is being displayed.
I need to do this for performance issues. The main thing I am looking for is how to query the database once the user expands a given ProductCategoryID.
but now I think of it one thing I need to know: when you bind an accordion to a dataset will it create one pane for each record returned? It might be better to put the gridview inside the accordion. I'm willing to do either, as long as it works
The gridview is not displaying when the page load even though I have bind the gridview with the datasource.... below is the code..
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DSF_View_ChangeRequest.aspx.cs" Inherits="DSF_View_ChangeRequest" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
[code]...
i have two ajax cascadedropdown combos loaded by a web service. When mi page loads, it do it before the data filled the first of the cascade combos so when page load (on the Page_load event) i try to select a value on the first combo but it is still empty. What can i do to force the load of the combos before page load? I have try combo.cascadropdwonextender.databind() on the page_load with no sucess.
View 3 RepliesI want to improve the performance of my web application. Whenever the page loads, it is taking 70-80% of CPU usage.
I'm using ajax timer controls to update the user controls on my page. Also I placed user controls in the update panels of my page.
How to avoid high CPU usage ?
I have seen this discussed in number of topics, but so far nothing to address my specific issue. I want to display the page the client, and then trigger an updatepanel refresh that will populate with data that takes 3-4 seconds to load (the rest of the page loads very fast). At the same time I want to display "...Loading..." text using UpdateProgress control.
Everything is working below in the sample code. However, UpdateProgress will not display unless the button is actually clicked by the user. In real production scenario I would hide the button. To invoke the immediate UpdatePanel refresh I trigger the click via Javascript. I have also tried "__DoPostBack" without success.
<code>
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="TestUpdate.aspx.cs" Inherits="TestUpdate" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> [code]...
I have the following code so it'll show an animated progress GIF but if the site takes longer than this, it will quit. Is there a more effective way?
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I seem to be having a problem loading a gridview using 2 cascading drop down lists. Before I implemented the Ajax cascading drop down list extenders and I just had regular drop down list the gridview that is supposed to load when users choose the appropriate data from the 2 drop down list appears when the submit button was triggered.
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When the button event is triggered it looks for the specific value in the second drop down list and calls a specific stored procedure to load the gridview. Now after implementing the cascading drop down lists the page just posts back - there are no errors whatsoever.
I am making a menu to display departments and sub departments. Each department has a corresponding pop-up menu to display the sub departments. The menu is built dynamically with values from the database. I'm using nested repeaters and the AJAX HoverMenuExtender. The problem is that when the page loads or is refreshed all of the sub departments are visible for a second or so underneath their respective subdepartments. In other words, for just a second the page is rendered as if the HoverMenuExtender was not there.
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I am trying to set a focus on a dropdown within GridView(gridViewDropDown class) when page loads:
if ($('select.gridViewDropDown').length)
{
alert("Found my dropdown");
//$('select.gridViewDropDown:first').focus();
setTimeout(function() { $('select.gridViewDropDown').focus(); }, 10);
}
I can see the alert which means that dropdown is found but it never gets a focus. What do I need to change here? I am using IE 6/7.
I have 2-3 update panel in my page and i don't want to load chart every time when my page loads or button clicks etc. I put that in update panel with triggers means only some clicks should loads chart. but that chart gets loaded everytime. how to stop that from loading
View 2 RepliesI've got a dropdownlist and a Gridview Based on the choice from the dropdownlist (which has a '--Select--' as the first item), the gridview is populated. If nothing is in the database when queried, I have a message for the emptydatatext property of the gridview. However, it comes up when the page first loads, since it's based on the ddl. How can I make it so that, when the page loads for the first time, the emptydatatext property is ignored?
View 3 RepliesI moved from the FileUpload control to the AsyncFileUpload control.
1) Do AsyncFileUpload controls work under UpdatePanels??? (Please provide example or reference)
2) Can AsyncFileUpload controls be triggerd with an update button (both inside the same updatepanel)?
I have a problem on my website, when using updatepanels:
Most of the time everything works fine, but a few times a day a user will get an error 500 as response to a partial postback in an updatepanel. The problems are:
1) I can see in my server logs that the request is processed without errors.
2) There is no log entry from the function handling AsyncPostBackErrors, although that is the first thing it does.
3) The function handling AsyncPostBackErrors changes the AsyncPostBackErrorMessage, but the users see a generic text which the function will never output.
So my theory is that the request does not cause an syncPostBackError at all. I can see in the logs, that there have always been an AsyncPostBackError from another request at almost the same time. So I suspect that one request somehow gets tainted with the error of the failing request.
How to populate a DropDownList (using C#) inside a DataList while page loads.....yes we can do it by using DatasourceID propeerty in aspx page itself(as I've done here..), but how do I do using C# in code behind only?
<FooterTemplate>
<table>
<tr> [code]...
I have a web page with a GridView and a table outside the gridview to display more information of the record when it is selected (like record details). I'm using data of five tables for this particularly window. I use one table of the five to bind the gridview the other tables are for the details, but I use like 1 or 2 fields of those tables. I'm binding the page with web services. I need some advice on which is the better way for doing this to make a faster web page.
In sql server I made a view with the five tables (all the tables relations are working perfectly). In the web service I call the view; and in the web page I call the web service to bind the page. Everything is working. All I want to do is retrieve from the server all the necessary data only once when the page loads and bind the five tables data (like 18 fields total) in the gridview which I only show 12 fields the other 6 fields are hidden, those 6 are for the details which I get with jQuery (that's another topic). Bind everything only once and manage the data on client side. Everything is working perfectly. Here is my doubt.
How are the maximum table joins I can make? To retrieve the data via web and not get a server time out error. Which is a better way to make a faster page? Make 2 views one for the gridview and one for the details and put each view in a web service; or make one view with all the table joins and one web service. Right now all is working but I have to make other pages that use different tables and joins and I don't know if the server gets me the time out error when the page is fully working.
I want to fetch records from webservice and displayed it by ajax call.
so I call web method in aspx page and in passing json data to the url of that ajax call page
but its not fetching that data..
i know i am going wrong some where but i can't detect it
here is my code
$.ajax({
type:
url: methodname.aspx,
dataType:
data: {},
contentType:
success:
[code]....
On my page which uses nested master pages, I have several user controls which are in their own UpdatePanels.
I've noticed that when I update something which is in UpdatePanel 2, things are shifting slightly in UpdatePanel 1. Someone told me that when UpdatePanels are used, the page is reloading anyway. Is this true?
How do I prevent UpdatePanel 2 affecting UpdatePanel 1?
P.S. All update panels are set to Conditional in their UpdateMode's.
