in my asp.net page, The asp.net button click is not getting fired in IE,But in mozilla its working fine. Any thoughts ?
I've had a similar problem when using a non runat="server" form nested inside a runat="server" form or vice versa, like so:
<form runat="server">
.... Some code
<form method="post" action="somepage.aspx">
</form>
.... Some more code and a button
</form>
The first form seems to get closed when the inner form is closed so any buttons after the closing tag of the second form don't postback
Javascript error specific to IE is my guess. Do you get the "error on page" message in IE?
It could be a security settings problem. It maybe that your settings do not allow javascript to run from sites in the "internet zone". Try adding your site to "trusted sites", then refresh the browser, and try again.
I'd also check for malformed HTML or any additional script that might interfere or intercept the postback unreliably.
Related
I have a question for web service. I have been testing but not sure what is causing this. I am trying to prevent my web page from flickering when there is a post back. So I used web service. It is working fine without any noticeable flickering when I put my dropdownlist on a normal page (without Master page). However, when I moved the same code to page with master page, then the flickering happens. Anyone has any ideas how to fix this please? My html mark up is as below:
<div>
<div>
<asp:DropDownList ID="ddlState" runat="server" AutoPostBack="True"></asp:DropDownList>
</div>
<div>
<asp:DropDownList ID="ddlCity" runat="server" DataTextField="city_name" DataValueField="city_id"></asp:DropDownList>
</div>
</div>
I am trying to avoid using update panel. Thanks
You will get the flikering as long as you have postback, you can use ajax call to refresh only part of page for instance drop down. One of easiest solution is to use UpdatePanel or you can use jQuery ajax. This article explains how you can make cascading dropdowns using jquery ajax with asp.net.
I have a Jquerymobile popup(in asp.net website) and within that I have a simple textarea and submit button.
After the submit button event, I want to do certain things.
Validation on textarea, if empty show a literal with error message.
If successful, then show a thank you message along with close button.
All this has to be done while the popup is open (after submit).
The problem is, after submit the DOM is refreshed and popup box is closed.
<div class="feedback-text">
Feedback
</div>
<div data-role="popup" id="feedback" data-overlay-theme="a" data-position-to="window">
Close
<div class="feedback-field-wrapper">
<asp:TextBox ID="txtFeedback" runat="server" Text="*feedback" cssclass="form-first-name" TextMode="MultiLine" Rows="3"></asp:TextBox>
</div>
<center>
<div class="errormsg-feedback"><asp:literal ID="ltError" runat="server" Text="test" Visible="false"></asp:literal></div>
<asp:Button ID="btnFeedback" runat="server" Text="Submit" data-ajax="false"
data-icon="arrow-r" style="width:150px;" data-inline="true" /></center>
</div>
Would you guys suggest if there is a way to keep the popup box open after the submit.
Thanks.
Unfortunately, you cant do that normally unleass otherwise you use localStorage API. This is like a cache system which exists in the browser. From DiveIntoHTML5
So what is HTML5 Storage? Simply put, it’s a way for web pages to store named key/value pairs locally, within the client web browser. Like cookies, this data persists even after you navigate away from the web site, close your browser tab, exit your browser, or what have you.
You could set a value in localStorage in the submit event of #btnFeedback, then on page refresh, check if that value exists on page refresh and reopen it.
To set a value :
localStorage["isOpen"] = "1";
To check if its null or not :
var isOpen = localStorage["isOpen"];
if ([null, undefined].indexOf(isOpen) == -1) {
//data exists
}
Demo : http://jsfiddle.net/hungerpain/ZJvjJ/
An alternate, better method would be to use ajax to submit your form. This way the page wont refresh and gives the user a nice experience.
Here's a question which helps you do that : jQuery AJAX submit form
I am using the Login control. Just in FireFox, I am finding that I cannot click directly on the UserName field. I need to tab through all the other elements on that page. Just wondering if there is a work around to this issue?
<asp:Login ID="LoginUser" runat="server" EnableViewState="false" RenderOuterTable="false" OnLoggedIn="LoginUser_LoggedIn">
You can do this by adding the following code to the Page_Load method on your login page:
AppLogin.Focus();
this.Form.DefaultButton = "ctl00$BodyPlaceHolder$AppLogin$LoginButton";
This will also cause the "login" button to be clicked when you click enter.
Note: The full "path" (ctl100$BodyPlaceHolder...) may vary slightly depending on whether or not you're using master pages, panels, etc. You can simply view the element on the page in your favorite inspector and find the rendered name for the login button.
More details can be found at my blog here.
I have a couple of asp.net pages with TextBox controls on them. Some of them postback on enter (within a TextBox control) and others don't. For the life of me, I can't figure out why or why not...
I don't think this has anything to do with asp.net. Not using ajax etc. Tried playing with a very simple html page and still can't figure it out.
Maybe within or not within a <form> tag? But all my asp:textbox controls are within the standard form tag and some do and some don't. Not related to autoPostback from what I can see.
EDIT:
Sample markup which causes a post back:
<html>
<body>
<form>
<input type=text />
</form>
</body>
</html>
I have asp.net pages that definately don't post back. The code is extensive and I can't figure out why not.
EDIT2:
How can I prevent a postback?
If you only have one textbox and don't wan't this behavior, you could always put a hidden input on the form.
<html>
<body>
<form>
<input type="text" ></input>
<input type="text" style="visibility:hidden"></input>
</form>
</body>
</html>
I've tried this in IE7 and FF3 and it works.
Generally most web browsers will detect when a form has only one textbox and will automatically submit the form when enter is pressed.
If you have multiple text boxes or multiple form buttoms, the behaviour varies. ASP.Net has the "defaultButton" mechanism for buttons, meaning you can specify which button is the submit button for a given panel in the case of the enter key being pressed. You could check out this post for more information on setting up your forms to correctly post back.
As Boo mentioned, this won't be triggered by multi-line textboxes.
If the behaviour is really crappy in your form between browsers, you may need to look at a javascript solution to catch the enter key being pressed, and "manually" submitting the form via javascript.
If the textbox control is set to autopostback it will postback on every keypress (thus allowing the firing of the TextChanged event).
Next, text boxes that have their Multiline property set to false will appear to postback on Enter.. what is actually happening is a form submit as defined by the behaviour within the browser.
Boxes that have Multiline set to true will not cause a form submit on Enter.
I have a gridview that is within an updatepanel for a modal popup I have on a page.
The issue is that the entire page refreshes every time I click an imagebutton that is within my gridview. This causes my entire page to load and since I have grayed out the rest of the page so that the user cannot click on it this is very annoying.
Does any one know what I am missing.
Edit: I entered a better solution at the bottom
Make sure you have the following set on the UpdatePanel:
ChildrenAsTriggers=false and UpdateMode=Conditional
do you have ChildrenAsTriggers="false" on the UpdatePanel?
Are there any javascript errors on the page?
I had this problem and came across the following article:
http://bloggingabout.net/blogs/rick/archive/2008/04/02/linkbutton-inside-updatepanel-results-in-full-postback-updatepanel-not-triggered.aspx
My button wasn't dynamically created in the code like in this example, but when I checked the code in the aspx sure enough it was missing an ID property. On adding the ID the postback became asynchronous and started to behave as expected.
So, in summary, check your button has an ID!
Are you testing in Firefox or IE? We have a similar issue where the entire page refreshes in Firefox (but not IE). To get around it we use a hidden asp:button with the useSubmitBehavior="false" set.
<asp:Button ID="btnRefresh" runat="server" OnClick="btnRefresh_Click" Style="display: none" UseSubmitBehavior="false" />
Several months later this problem was fixed. The project I was working in was a previous v1.1 which was converted with 2.0. However, in the web.config this line remained:
<xhtmlConformance mode="Legacy"/>
When it was commented out all of the bugs that we seemed to have with the ajax control toolkit disappeared
Is the Modal Window popped up using the IE Modal window? Or is it a DIV that you are showing?
If it is an IE Modal Pop up you need to ensure you have
<base target="_self" />
To make sure the post back are to the modal page.
If it is a DIV make sure you have your XHTML correct or it might not know what to update.
I would leave the onClick and set it as the trigger for the updatePanel.
That's odd that it works in FF and not IE. That is opposite from the behavior we experience.
UpdatePanels can be sensitive to malformed HTML. Do a View Source from your browser and run it through something like the W3C validator to look for anything weird (unclosed div or table being the usual suspects)
If you use Firefox, there's a HTML validator Extension/AddOn available that works quite nicely.
For reference..
I've also noticed, when using the dreaded <asp:UpdatePanel ... /> and <asp:LinkButton ... />, that as well as UpdateMode="Conditional" on the UpdatePanel the following other changes are required:
ViewStateMode="Enabled" is required on <asp:Content ... /> (I've set it to Disabled in the MasterPage)
ClientIDMode="Static" had to be removed from <%# Page ... />
To prevent post-backs add return false to the onclick event.
button.attribute.add("onclick","return false;");
Sample:
string PopupURL = Common.GetAppPopupPath() + "Popups/StockChart.aspx?s=" + symbol;
hlLargeChart.Attributes.Add("onclick", String.Format("ShowPopupStdControls(PCStockChartWindow,'{0}');return false;", PopupURL));