MVC :: Posting Back To A Method Directly?
Mar 15, 2011
I am trying to implement autocomplete using JQuery. I cannot get this to work directly from my view so I am trying to post directly back to a method in my controller that has a reference to the web service. How do I post directly back to a method in my controller?
My method name is Autocomplete URL: "/" - Takes me to the Index method of my main controller. I want to go to a different method so I can return JSON back
Code below:
[Code]....
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May 25, 2010
I have a button on my web form. When it is pressed, the event method for that button is called as it should be. However before the buttons method is called, the page load event is first called. Is there a way to prevent the page load event from being called when the button is pressed? I know about using !Page.IsPostback in the Page load method. However I wish to avoid posting back to the Page Load method altogether when this particular button is pressed.
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Jan 31, 2011
when any Button control is clicked generally it Postback the page to itself, and the same page is regenerated.This is the usual defination of postback in context of a Button Control. But my dear friends i am confused that what is the actual mechanism behind this.Okey say for definition the above statement is fine but believe me i not not getting the actual meaning.What is posting back the Page? What is Page in browser's context? There is only html markup, JavaScript and CSS codes in browser's page.These make up the html page. I think there is no any relation of this Browser's page with ASP.NET Page class. What does it mean that browser's content is posted back to the Page itself ?
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Dec 6, 2010
how can i update another dropdownlist without posting back. i've seen the sample somewhere but its not doing anything.
Code:
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="false" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
<asp:ListItem Value="0">----Select----</asp:ListItem>
<asp:ListItem Value="101">General Admin</asp:ListItem>
[code]...
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May 24, 2010
Here's the code I'm using but it's not working.
[Code]....
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Dec 23, 2010
[Code]....
I have the above code, on the get method I do the following.
[Code]....
It only hits the index once after loading the page. It never goes to the index method.
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Feb 25, 2011
I have a keyboard-controlled menu which I did with jquery (When I press down, it marks second option and so on...)
But after I select the option I need, I want to click enter to call the button's OnClick method as if the user really clicked it. Which means I have to do a postback.
how do I do that?
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Nov 16, 2010
i have the below page and i am racking my brain as to why when i have two update panels do they both get post backs. i can tell cause i have two user controls- one in each panel and they both fire page load events when only the left panel should be posing back and updating itself... or else whats the point of update panels if in reality the entire page is posting back!
<asp:Content ID="StyleContent" ContentPlaceHolderID="Style" runat="server">
<link href="../Styles/ReportWizard.css" rel="stylesheet" type="text/css" />
<div class="clearFix"></div>
<div class="wizardContainer">
<asp:UpdatePanel runat="server" ID="pnlWizard">
[Code].....
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Mar 13, 2010
I have a problem of posting back in my website in some browsers. The Problem is: When I am uploading a file using file upload and button or posting page back on some event click after button click I am using:
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Jan 1, 2011
I used the following code for the form download
[Code]....
But form is not posting back on execution of the above statement. What should I do , so that form postback also occurs after this statement.
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Jul 30, 2010
I found alot of thread about how to postback after close the modal popup.
But for me, the system has already did it for me.
How to prevent page from posting back?
here's my code
[Code]....
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Aug 26, 2010
I have a control which inherits from LinkButton and I'm trying to make sure that the user cannot cause mayhem by performing multiple postbacks. That seemed an easy enough challenge, so I have this code [snippet] on the client:
[Code]....
The alert is of course only there for debugging. If the DisableOnClick value is false, then I see the "Posting Back" alert and, when I click ok, the postback occurs - all good.
If the DisableOnClick value is true, then the "button" gets disabled and the cursor turns into an hourglass - again good. But the postback doesn't happen - not good. I assume that the ASP client code is trying to preventing the postback when it sees that the link is disabled.
So, how can I either:
Persuade the LinkButton to postback even though it has just been disabled; or[probably better] Get my client code to execute immediately after the postback code rather than before.
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Jul 23, 2010
I'm using ASP.NET MVC to try to postback after confirmation using javascript, this is the button:
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This is my javascript in my CheckRemove() js function:
var button1 = document.getElementById("RemoveStatus");
if (confirm("Are you sure you want to remove status?") == true)
{
button1.disabled = true;
button1.value = "Removing status...";
__doPostBack('RemoveStatus', '');
return true;
}
else
{
return false;
}
But for some reason I get an object expected error at the __doPostBack bit, I've clearly set the id, button1 gets populated too in debug, i'v tried passing button1.id and button1 too into the __doPostBack call but it wont postback and keeps saying object expected.
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Apr 23, 2010
I have a simple user control with this code:
<%@ Control Language="C#" AutoEventWireup="true" CodeFile="Pager.ascx.cs" Inherits="Pager" %>
<table style="width: 100%;">
<tr>[code]....
As you can see, the 2 buttons are wired to click events, which are defined correctly in the code-behind.Now, here is how I include an instance of the control on my page:
<uc:Pager ID="Pager1" runat="server" TotalRecords="100" DisplayItemsPerPage="true"
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I noticed though, that the 2 buttons in my user control weren't causing a post back when clicked. The drop down list does cause postback, though. Here is the rendered HTML:
<table style="width: 100%;">
<tr>
<td id="ctl00_MainContent_Pager1_PageControls" align="left">[code]....
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EDIT,Ronnie, why are you so dumb??? <input type="submit" /> doesn't use javascript to post a form!
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Feb 8, 2011
I am loading an aspx page into a div using jquery.load(). The aspx page loaded into the div has a datalist. Each datalist item has a linkbutton. My problem is that the linkbutton is not causing a postback though. Strangely, if I change the linkbutton to a button, it does postback. Also, when loading the page normally (not from a jquery.load event), the linkbutton performs correctly. What is it that causes the linkbutton to not cause a postback when loaded this way? And is there a better way to handle this?
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Jun 15, 2010
I have an aspx page that has...
if (!IsPostBack)
{
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The problem I'm having is that there is also a link on the page that is posting back some parameters to this page. What is happening is that when this is clicked it's falling through this !IsPostBack section and wiping out my drop down values that I had selected and repopulating it.
How can I prevent this and just retain what I selected when this page is posting back to itself when the link is clicked?
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Sep 23, 2010
Anyone knows how to do this? I have three distinct updatepanels on my page, and they're all unrelated. If possible, I would like the user to be able to interact with the other updatepanels while one is refreshing, or at least show which one is refreshing by only covering this with a div+animated gif.
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Aug 10, 2010
I have an ASP dropdownlist with AutoPostBack="true" and I want to do some javascript client side which can stop the postback if necessary. However, I can't get it to stop the postback.
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{
$("#ddl").bind('change', function() {
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});
</script>
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<option value="">Item 4</option>
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Mar 22, 2011
so i have a lightbox in which pops up an aspx page with textboxes and two buttons (submit - disabled and cancel - enabled). I wanted to enable my submit button ontextchange. it works fine when opened separately (not as a lightbox) but when i let it run normally with the lightbox function everytime ontextchange gets triggered the whole page refreshes disabling the lightbox.
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Aug 7, 2010
I have a gridview in an update panel with the following code to select a row, this in turn updates another updatepanel with details from the form record.
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Apr 20, 2010
Is it possible to stop my page posting back when the user presses the enter (return) key..?
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Jun 25, 2010
i placed my grid control and FromView control in the same page, the problem is when i click on the "update" in the grid control, the field validation control in my FrormView get excuted and the page would not post back to the server.
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Jan 9, 2011
Got a pretty simple page where i want an update panel to become visible or hidden based on a button click. When i run this page in VS2010 in debug mode it works as i expected it to - page does not post back, the panel just appears or disappears on the page without the whole page refreshing.
I uploaded this to my server, and the page is posting back when you click the button.
Server is win2k8R2 x64 IIs7.5
Do i need to enable anything in the IIS configuration?
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Oct 7, 2010
I have the following code:
.aspx
<asp:DropDownList ID="ddlCountries" AutoPostBack="true" runat="server">
</asp:DropDownList>
[code]...
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Sep 21, 2010
I have a master page and some child pages, i want that when i navigate the child forms, my should not post back, only the inner should navigate
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