Web Forms :: Partial Page Updates
Mar 18, 2011
I have a serveral ASP.Net webpages with multiple functions that I am optimizing. Each function is being moved into a usercontrol that will be called by an AJAX function to replace that part of the page. The function (see below) works for some controls,
but not others. The error message returned is "Error executing child request for handler 'System.Web.UI.Page'."
To isolate the problem, I created a new user control with nothing but a textbox on it and it failed. Same thing for many of the others controls. However, put nothing but a Label, repeater, or pic onto the control, and it works.Is this the correct way to do partial updates back to the page? Or should I be using a different approach?
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Feb 21, 2011
We currently have a page with a listview control that has textboxes and an update button for each row. Users are able to update the database one row at a time.This is problematic in countries where the internet connections are very slow because a round trip is needed for each row update and this can become impossible to use.We need to create a page which allows multiple row updates so that each round trip is more productive. There woudl be just one update button on each page and users could enter values into each row. Clicking the update button would update each changed row
of the database.We currently use linq 2 sql. I would imagine that we could still use this in the above scenario??? Or is there a better data connection methode to use in this scenario.
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Dec 9, 2010
I have a master page with a model that is used my any page. It is within the FORM tag and shows up just fine as expected. When I click button on the modal UC the values from the TextBoxes are not updated with values that I typed into them before button click.
Master Page
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Jun 25, 2012
I have a web form that contains a dropdownlist which shows list of cities in it. I have an add button on click of which I am opening a Popup window to open a new page that contains a text box where in i am entering new city name and submit button.
I want that after click submit button the window should be closed and on the parent page the dropdownlist gets refreshed with the new value. I am able to do it but the whole page gets postbacked which I do not want. I have added the dropdownlist in the update panel but not able to do the partial postback.
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Feb 19, 2010
I don't know why, but even using update panel, my postback method updates the entire page. I'm using a master page with aspScriptManager inside.
My ASP.Net code:
<div> <asp:UpdatePanel ID="updProva" runat="server">
<ContentTemplate> <asp:Panel ID="pnlProva" runat="server">
</asp:Panel> </ContentTemplate> </asp:UpdatePanel> </div>
The CodeBehind (C#) creating some RadioButtonList controls in my ASP.Net page, I'll post the main function and de Page_Load:
createTest function
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Finally, the Page_Load:
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Jun 27, 2010
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Mar 1, 2011
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Apr 16, 2010
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Feb 12, 2011
I am developing an application in asp.net mvc 2.0.In my view page i am rendering five partial views.While loading view page it very slow with partial views.if i remove the partial pages it loading very fast.How to improve the performace of partail pages while rendering.
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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;
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Jan 31, 2012
I'm trying to build an igoogle like interface and I can get it to work, but my data for the panels loads to slow which makes the complete page load way to slow. So I need a way to load the page and then start loading panels individually. I looked at update panels but they seem to only work when post back occurs. I need a way to load the page by piece from the first time the person comes to the site.
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Nov 24, 2010
What is the best way to build a progress page? In short, I want a user to complete a series of "setup steps" and hit a "Start" button. I would like them to be immediately redirected to a "Progress" page that will show them the progress of each step. In my case these would be: Shutdown device, copy file, Start device.
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<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
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Jan 16, 2011
I am trying to implement something like Ruby on Rail's ActionDispatch::Flash to pass messages to the next page request. The approach that I want to take is to store a pair of (partial view name, model object) in the session context and render it in the master page when rendering the request to display the flash message.
Inside my HttpApplication subclass I now have:
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to render the partial view that was specified by name when Global#Flash was called.
I want to use a view for the flash message instead of saving the message as a string in the session context because I want to include the URL in the message:
<%-- BookmarkAddedFlash.ascx --%>
<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<MyApp.Web.Models.Bookmark_AddModel>" %>
<%: Html.DisplayTextFor(m => m.Url) %> was successfully bookmarked.
And I only want to render the view when the subsequent request is made; i.e. one request sets the flash message and the subsequent request renders it.
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Feb 22, 2011
I seem to be struggling to do this
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Jul 7, 2010
I have a CRUD type page, where the user can modify an object
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Feb 17, 2011
I have the JQuery tab control on my page and each tab will be using the same partial view with a filter set of the model. What is the best way to do this?
The only thing is the data needs to be filtered before it gets to each partial view.
I am currently putting the filtered model data in ViewData but I do not know how to reference that in the partial views.
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In my partial view:
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Mar 14, 2011
I have a few Link Buttons on my AJAX enabled page, all basically the same:
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Here's the OnClick method they're attached to:
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I ensure these LinkButtons trigger Async in my Page_Load method:
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Then on the page there are three UpdatePanels (as called in the btnCampus_Click method). All are similar to this (only the ContentTemplate changes):
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why the UpdatePanel's aren't triggered when clicked. I've been using UpdatePanels for a long time, but I can't seem to figure this one out.
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Aug 26, 2010
I have a view that uses a partital view. The partial view is invisible when the page loads. The user then clicks a button and I use Html.RenderPartial to make the view appear.
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Mar 21, 2011
I am nto sure what am I doing wrong here. I have a controller called Main and I have a action method called Navigation Bar inside it. i created a partial view from NavigationBar action method and called that partial view from my master page. when i call this partial view from a regular aspx page. i can see the menu, but when I call the same partial view from my master page, I don't see anything. below is my code
Controller Code
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partial View code
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and my master page code
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I tried both renderView and renderPartial, they both don't work. However, if I out this staement on a regular aspx page and not the master page, it works.
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Jul 20, 2010
I am using a table and within the table i have gridview and textbox controls. On the rowcommand i am populating the data in text boxes. On top of the table i am using updatepanel for partial page rendering. When i select a row from gridview the text boxes are not populating, the table disappears.Below is the code
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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.
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