I know there are many questions similar to this but I've been unable to find one that fits my situation.
I have a basic form with a few TextBoxes and RequiredFieldValidators and an ASP Button to submit the form. I have set the submit button CausesValidation="false" because I want to perform some functionality in the event that the form is not valid. All validators have an ErrorMessage set and all validators, and the summary have the ValidationGroup="Registration" set. The ValidationGroup is on the submit button as well but I don't know if that makes any difference when CausesValidation is false.
In the button click event I am calling
Page.Validate("Registration");
if (!IsValid)
{
}
I have set breakpoints and IsValid is definitely false and it gets into that code block, but the ValidationSummary doesn't show the error messages from the Validators. I can't figure out why.
The ValidationSummary is defined as follows
<asp:ValidationSummary CssClass="validatorSummary" DisplayMode="BulletList" ID="valSummary"
runat="server" EnableViewState="false" EnableClientScript="false" ValidationGroup="Registration" HeaderText="test" />
Is there anything that could cause this kind of behaviour? I feel it must be something very simple I'm missing here. Any help would be much appreciated.
I've updated my .Net web application to use Framework 4.5, after the update, all the input buttons (not asp:Buttons), have stopped firing the onclick javascript code, this is only happening on those buttons that are inside a user control (.ascx).
Just for the record, user controls are neither being loaded dinamically nor inside update panels.
My buttons look like this
<input id="cb" onClick="myfunc()" type="button" value="Close" />
My user controls are included to the page as follows
<cc:actionbar id="theActionBar" runat="server"></cc:actionbar>
and the javascript function, which is also included within the user control, is
function myfunc() {
if (confirm("Before closing, please make sure you saved any changes.\nAre you sure you want to close?") == true) {
__doPostBack('theActionBar:theClose', '');
}
}
this works just fine on Framework 3.5 and previous versions.
any idea why is this happening??? or how can I solve this?? I have tried several suggestions I've found over the internet and nothing seems to work.
Thanks in advance.
.
I can't see an obvious reason, but have you considered simplifying your approach to avoid the custom javascript and hard-coded postback event reference? You can get exactly the same behaviour with an ASP.NET button's OnClientClick property:
<asp:Button runat="server" ID="btnClose" Text="Close" OnClick="btnClose_Click" OnClientClick="return confirm('Before closing, please make sure you saved any changes.\nAre you sure you want to close?')" />
Returning false from the OnClientClick code or function prevents the postback.
Switching to this approach may be preferable and may even solve your issue if it's something to do with the postback event reference.
I have problem in asp.net button control.
I define a button in form, onclick event of button is not firing when I click on the button.
<asp:Button ID="btn_QuaSave" runat="server" Text="SAVE" OnClick="btn_QuaSave_Click" />
protected void btn_QuaSave_Click(object sender, EventArgs e)
{
}
Because your button is in control it could be that there is a validation from another control that don't allow the button to submit.
The result in my case was to add CausesValidation property to the button:
<asp:Button ID="btn_QuaSave" runat="server" Text="SAVE" OnClick="btn_QuaSave_Click" CausesValidation="False"/>
Have you copied this method from other page/application ? if yes then it will not work, So you need to delete the event and event name assigned to the button then go to design and go to button even properties go to onClick event double click next to it, it will generate event and it automatically assigns event name to the button.
this should work
I had the same problem, my aspnet button's click was not firing. It turns out that some where on other part of the page has an input with html "required" attribute on.
This might be sound strange, but once I remove the required attribute, the button just works normally.
If you are using updatepanel on onclick event, this may happen.
Use 'EnableEventValidation="false"' in your page markup like this :
<%# Page Language="C#" MasterPageFile="~/ars_home.master" AutoEventWireup="true" CodeFile="Transaction_Window.aspx.cs" Inherits="Transaction_Window" EnableEventValidation="false" %>
Hope this helps
I had a similar issue and none of the answers worked for me. Maybe someone finds my solution helpful. In case you do not mind submitting on button click, only attaching to click event setting UseSubmitBehavior="false" may be worth trying.
In my case I put required="required" inside CKEditor control.
Removing this attribute fixed the issue.
Before
<CKEditor:CKEditorControl ID="txtDescription" BasePath="/ckeditor/" runat="server" required="required"></CKEditor:CKEditorControl>
After
<CKEditor:CKEditorControl ID="txtDescription" BasePath="/ckeditor/" runat="server"></CKEditor:CKEditorControl>
i had the same problem did all changed the button and all above mentioned methods then I did a simple thing I was using two forms on a single page and form with in the form so I removed one and it worked :)
Try to Clean your solution and then try once again.
It will definitely work. Because every thing in code seems to be ok.
Go through this link for cleaning solution>
http://social.msdn.microsoft.com/Forums/en-US/vsdebug/thread/e53aab69-75b9-434a-bde3-74ca0865c165/
Try to go into Design mode in Visual Studio, locate the button and double click the button that should setup the event. Otherwise once the button is selected in Design more, go to the properties and try setting it from there.
Add validation groups for your validator elements. This allows you distinguish between different groups which to include in validation. Add validation group also to your submit button
in my case:
make sure not exist any form element in your page other than top main form,
this cause events not fired
If the asp button is inside tag then also the Click event will not raise.
Hope it's useful to some one.
In the case of nesting the LinkButton within a Repeater you must using something similar to the following:
<asp:LinkButton ID="LinkButton1" runat="server" CommandName="MyUpdate">LinkButton</asp:LinkButton>
protected void Repeater1_OnItemCommand(object source, RepeaterCommandEventArgs e)
{
if (e.CommandName.Equals("MyUpdate"))
{
// some code
}
}
If it's throwing no error but still not firing the click event when you click the submit button, try to add action="YourPage.aspx" to your form.
Even i had two forms one for desktop view and other for mobile view , Removed one formed worked for me . I dint knew asp.page should have only one form.
Try this onserverclick
<button id ="DemoButton" runat="server" onserverclick="button_Click">Login</button>
I'm working with a legacy project in C# (.NET 2.0). In this project there are two validationgroups. One for custom login control and one for users to submit to a newsletter. The problem I ran into is that when a user submits to subscribe to a newsletter some custom code is triggered in the page_prerender() method which only should be triggered when a user tries to login.
I have been looking for a solution to recognize which of the two groups is used on postback so I can ignore the custom code when needed. My idea was to try and check which of the two validation groups is being used to validate. Unfortunately after spending a fruitless few hours on google I've not been able to find anything to let me know how to actually known which validationgroup is used when validating. Is there any way to find out?
<asp:Button ID="btn_newsletter"
runat="server"
Text="Verzend"
ValidationGroup="newsLetter"
meta:resourcekey="bnt_newsletter"
OnClick="handleNewsLetter"
CssClass="roundedButtonBig"
/>
<asp:Button ID="LoginButton"
runat="server"
CommandName="Login"
Text="Inloggen"
ValidationGroup="lgnUser"
meta:resourcekey="LoginButtonResource1"
CssClass="roundedButtonBig"
/>
The following code should only trigger when the LoginButton is pressed and it needs to be done on Pre_render(). Or alternatively pass the correct ValidationGroup (where now null is passed).
protected void Page_PreRender(object sender, EventArgs e)
{
//Register custom ValdiationErrorService added errors to JavaScript so they can be added into the popup.
ValidationErrorService.RegisterServerValidationMessageScript(Page, null);
}
to check which validation group is valid, call:
Page.Validate(“newLetter”);
then check
Page.IsValid;
this will return the value. Scott Gu has more on his blog
edit you are also wanting to know which button was clicked within the prerender event it sounds like as well. While you can't find that out from the parameters passed into the page prerender, you can rely on the button events occuring prior to the page_prerender event. within the aspx pages code behind, create a member variable. this variable will be used to denote if the prerender logic should be executed.
next, within the click events of the two buttons, set that local variable to denote if that button should fire the logic you want in the page_prerender event.
last, check your local variable within the page_prerender method, and encapsulate your logic within an if statement based upon your new member variable.
Happy Trails!
Im using asp.net c# (webforms)
I want to add a back button to my page. (you land on this page if you incorrectly fill in a form).
if javascript is enabled i want to go back via javascript, but if it is disabled i'll just do a response.redirect("~/home.aspx")...
how can i implement this? is it 2 buttons? how can i hide the other in the 2 different states if so.
thanks
<asp:Button OnClick="serverMethod" OnClientClick="return(jsMethod);" runat="server" ID="redirectButton" Text="Back" />
on the button, but set the OnClientCLick to:
return(javascriptredirect());
and the OnClick to your button click event handler in your code behind.
if javascript is enabled, it will do the javascript redirect, if not enabled the page will post back and you can do your OnClick code behind method whic can to the response.redirect. You can also return false from your function to prevent the postback from occurring such as the case with setting the OnClientClick="return(confirm('Are you sure?'));"
This link guides you how to do it http://aspadvice.com/blogs/azamsharp/archive/2007/09/30/Check-If-the-JavaScript-is-Enabled-on-the-Client_2700_s-Browser.aspx
Happy coding !!!!!!