Web Forms :: Stop Postback After Imagebutton Click On Page Validation Error?
Nov 20, 2010
i have some textbox that i validate with a customvalidator control (only, and must be, server side function) and i have an imagebutton control for submit.I must stop the postback if there are some errors in the validation function.I set the validation property argumets.isvalid = false in the customvalidator function but doesn't work, the postback continue.i have tried to set the imagebutton property postbackurl = "" in the validation function but doesn't work.
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Oct 10, 2010
I have an ImageButton programmed to open up a new window with a small onclientclick javascript routine. But, when the ImageButton is clicked, the page containing the button reloads too, causing both a delay and loss of position on the page. I don't need the page to reload, just the new window to open.
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Oct 25, 2010
When user cliick on the control before page fully loaded it goes to error page.
Following is the trace.
Execution Error
Invalid postback or callback argument. Event validation is enabled using <pages enableEventValidation="true"/> in configuration or <%@ Page EnableEventValidation="true" %> in a page. For security purposes, this feature verifies that arguments to postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the postback or callback data for validation.
[code]....
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Sep 29, 2010
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Sep 27, 2010
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:
[code]....
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Jun 23, 2010
I have the following user control:
[Code]....
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Apr 14, 2010
I have a text box for entering Email Id and other for Password
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COde
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[Code] ....
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Feb 14, 2011
I'm having trouble with an image button I create via c# in an event causing page validation to occur on postback. The CausesValidation attribute is set to false at time of creation in the event. I also wire up the Click event in the page_init with postback so not to loose the event handler if the page posts another way. Here is the code I'm using in the click event of a Button. I've also tried to enable and disable viewstate for the button with no luck. What am I missing here that continues to fire page validation in the Click of this imagebutton?
[Code]....
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Nov 19, 2010
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Default.aspx.CS
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Default.aspx
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Feb 1, 2011
click twice the imagebutton to fire?
[Code]....
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Feb 11, 2011
I have a page that uses a master page. The following code only shows the bare minimum of the page:
[Code]....
Code-behind:
[Code]....
The [Code]....
My guess is that it may releated to the ID's that are recreated.
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Mar 7, 2010
I try to add a new ImageButton to my panel in a dynamic way -when the user click on button in the page.When i create the ImageButton i register to the click event.when the page load - i can to see the ImageButton but when i click on him is not fire the event.
[Code]....
[Code]....
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Oct 5, 2010
I know this question has been asked before. But for some reason I can't find the exact answer I need for my problem. My problem is as follows:
I am creating a web page (The one posted is just an easy example) that creates multiple ImageButtons on one page via a loop.I have tried many other ways (for example, create instance in form_load and pass to the WriteHtml() method) but I can't figure out a way to complete this. In this example I have 10 buttons that need to be able to be clicked.
The code is as follows:
[Code]....
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Mar 16, 2011
The image button below does not respond the first time I click it -
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<asp:ImageButton
ID="imgCloseHelp2"
runat="server"
ImageAlign="Right"
ImageUrl="~/Images/CloseIcon15x15px.jpg"
Visible="false"
style="
float:left;
padding-right:
10px;"
OnClick="imgCloseHelp2_Click"
/>
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