I have 2 textboxes and a submit button inside a .net composite server control. I tried to only postback when submit button is clicked. I set autopostback = false for both textboxes. But either one still trigger submit button's onclick event by hitting "Enter" inside textbox. How can I stop postback by enter key?
View 2 Repliesi have a textbox where the user needs to type in his phone number and the submit the detials but if the textbox is les than 8 caracters and he or she clicks the button
then it must stop that button doing a post back and refresing the page
is this possible herei an expamle code
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i have a multiline textbox .
<asp:TextBox ID="TextBox1" runat="server" Height="112px" TextMode="MultiLine" Width="236px"></asp:TextBox>
i need to write 3 line in textbox and when we use enter button >> automatically do post back instead of going to line4 !?
On postback, how can I check which control cause postback in Page_Init event.
protected void Page_Init(object sender, EventArgs e)
{
//need to check here which control cause postback?
}
On my page: a Button1, a ListView1, a Panel1 and inside Panel1 an ImageButton1In the ListView1_PreRender-Event the property Panel1.Visible = false or Panel1.Visible = true is set.1. After first loading of the Page Panel.Visible = false ist set in ListView1_PreRender.2. After the postback click on Button1 the criteria for the visibility of Panel1 are evaluated, thus setting in the ListView_PreRender Panel.Visible = true.
View 3 RepliesI have a script that runs during the Page_Load() event which checks a database table to make sure that the user is still owns the lock on the page. If they no longer own the lock, I disable all the controls on the page and display an
error message.My thinking was that by disabling all controls during Page_Load() I could prevent any PostBack events from occuring. For example, I have a button on the page called "Save and Quit"
I need to databind the gridview inside the Ajax UpdatePanel each time user types letter inside my TextBox control. How to override the TextChange event to force it do postback for me?
<script type="text/javascript">
function ace1_itemSelected(sender, e) {
var hdCustID = $get('<%= hdCustID.ClientID %>');
hdCustID.value = e.get_value();
</script>
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can you define autopostback and postback and it's differences and which web server control support autopostback and postback and also the difference between postback and callback?
View 3 RepliesI am using an asp.net autopostback enabled dropdown list. Here i want to restrict the autopostback property fot the value "Select" in the ddl. I have used javascript for this purpose. but not working.My code look like this.
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Well I have a strange problem.I have a page with 2 DropDownLists on it and a custom web-user-control. The custom web user control has an UpdatePanel within it, and an Ajax Timer control within the UpdatePanel to periodically update a listing of stuff.When I "drop-down" one of the DropDownLists and hover over (not click on) an option while the Timer control within the UpdatePanel asynchronously posts back to the server, the DropDownList "autopostbacks" to the server!
I'm trying to figure out why an asynchronous postback would cause the DropDownList to act as if I selected/clicked on an option so that I can find a way around this issue.Now it's really simple to reproduce this problem. Create a Web User control called "TimerUpdatedListing"...this is the ASPX code markup for the web user control:
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="TimerUpdatedListing.ascx.vb" Inherits="MyNamespace.TimerUpdatedListing" %>
<div style="width: 150px; height: 150px; overflow: auto; border: solid 1px navy;">
<asp:UpdatePanel ID="anUpdatePanel" runat="server">
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I do not have access to the <body> tag because it is in masterpage. I want to trigger an automatic postback when the page load as:
<script type="text/javascript">
window.onscroll= __doPostBack("<%= button.ClientID %>", "");
</script>
where should I put this code? I get a Not implemented JS error if I place it just before the </asp:Content> tag.
PS: I need to trigger that postback because I want to populate an updatepanel when the page loads
I am trying to write some code where it sets the imageUrl of an ASP Image from the codebehind (on a timer), but it does not change it on my screen (its changing in debug view). I assume this is because I need to postback everytime I change the image. Problem is, I cant trigger the postback from CodeBehind so that it will change. How do I do that?
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I am so used to win32 forms -- Just started again with ASP websites.
This is my script for the draggable and droppable
<script type="text/javascript">
$(function() {
$(".Source li").draggable({
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Now I want to access the value of the "TxtItemId" control in the code-behind through a postback. How do I go about doing this ? BTW, this is for a scenario where a person will drag an item from a panel into a shopping cart and I need to capture the Id of the dropped item and trigger a postback after the drop to update the quantity of that item in the cart.
i have a button that will check whether textbox1.text is empty or not. I have put a if function inside the btn_click event and look like this
Code:
If TextBox1.Text <> Nothing Then
''Will COMMIT if everything OK
MsgBox("OK Popup userCon2")
Else
End If
May i know what shpuld be the code inside the else statement if i do not want the button to create a postback and just do nothing?
firstly i am not really an ASP.Net developer but i do work in C#.
Anyway one of the application that i develop has an ASP.Net section and i need to amend it.
I want to add a Checkbox which when Checked by the User will set a Session variable.
This Session variable will then be accessed on another page where it will include/disclude some SQL and therefore change the behaviour of a Search.
So i have 2 Pages - Page1 that has the Checkbox on it -
HTML
Quote:
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1, How do i stop the whole page from executing again when doing a postback ? I only want the Changed Event to run not the whole page
I have a JQuery Dialog that is opened when a button is clicked. The first time around, it should do a postback, but when the dialog closes and I click the refresh button of the broswer, it sends the data again and duplicates the data I just entered. Should I add a return false somewhere so it doesn't postback when the dialog is closed. Here is the script:
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When I use a RadEditor I want to enable the editor's spell check (working thus far). After a spell check the user can either click on the radmodule (toolbar thing) to either "finish spellcheck" or "cancel." Which is all fine and dandy except the "finish" button causes a postback!! I don't want that at this point!! "cancel" more or less does what I want to happen - I mostly just want a "done" or a way to stop the postback.
I've tried an Update panel but that just grays out the text area after it does the update.
I hve few values in my Drop Down List
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i want when ever i Select the Value-"Select " it should not postback it PostBack me when ever i Select the value ("Select Again")
can't use Ajax right now other alternative would be javascript
I want to create a dynamic, role-based tab control that doesn't trigger a postback when the user switches between tabs.
View 3 RepliesI have around 8 user controls on a page with a form in each of them. I have a dropdown list that allows you to select a form, with a selectedindexchanged event that hides the current form and shows the requested form.
There is some javascript that needs to fire when each form loads. Now, when you click on a form for the first time, the javascript fires as it should, but if you click the dropdown to change the form, then click back to a previous form, the javascript doesn't fire (because the user control is already loaded).
Is there anything I can do to trigger a postback, or reload/refresh the user control whenever an option is selected from the drop down?
I need to trigger a postback or self refresh a user control from one of the functions in the same user control.
Problem is that I am setting the selected value of a dropdown control in this usercontrol but it does not actually show up until after a postback.
This I came to know after I found that the said drop down shows the current value only after I click on another button.
I need to do this on the server side in the function given below:
public void FillDropDown()
{
FillProgramList(select);
//if (Request.Cookies["prgname"] != null)
//{......
I have four server-side panel controls that, when clicked, trigger some jQuery animation. I'd like them to also trigger some AsyncPostBack as well. Is there an easy way to code that server-side? I know that the Panel controls don't have a Click event.
I could always trigger the AsyncPostBack via JavaScript, but that seems less than ideal.Secondly, (and I don't think this is possible), right now I use a QueryString and cookie to track a PreferredCampus selected. We'll be migrating this to be a subdomain. There's no way to change the URL without full-page postback, correct? What I can do is change the cookie setting via the partial-page PostBack I'm describing above, and then have the subpages catch and redirect to the correct subdomain.I'd really like more information about the first part.
iam developing my application using asp.net 2.0 and c sharp. on my default page if i select any place on the page and press enter it postsback. is it normal and can i disable this?
View 4 RepliesOn my form I have a button that pops up a panel to select an option from. It does a postback to fill in a textbox with the selected data. The other controls such as other textboxes and dropdowns are reset. Any way to stop this? Or do I have to save the settings and set it back on the postback?
View 4 RepliesI have several functions running on a postback that can take a little time to complete.When postback is initiated I show a loading image with this code:
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I want to be able to add code to this function so if user tries to leave at this point they are informed the operation is not complete.I found this code:
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This works but I only want the code to be active when the loading image is active.I tried the following but it shows the alert message when the page eventually posts back:
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