I have a simple form that uses jQuery validation to notify the user of input errors, etc. When I add an ASP.NET CustomValidator to the form, it causes the page to postback and skip the jQuery validation. I need the form to not be submitted to the server until the client-validation is correct. Has anyone seen this before?
This is my form:
[code]...
I have a simple form on an ASP.NET MVC site that I'm building. This form is submitted, and then I validate that the form fields aren't null, empty, or improperly formatted.
However, when I use ModelState.AddModelError() to indicate validation errors from my controller code, I get an error when my view is re-rendered. In Visual Studio, I get that the following line is highlighted as being the location of the error:
<%=Html.TextBox("Email")%>
The error is the following:
NullReferenceException was unhandled by user code - object reference not set to an instance of an object.
My complete code for that textbox is the following:
<p>
<label for="Email">Your Email:</label>
<%=Html.TextBox("Email")%>
<%=Html.ValidationMessage("Email", "*") %>
</p>
Here's how I'm doing that validation in my controller:
try
{
System.Net.Mail.MailAddress address = new System.Net.Mail.MailAddress(email);
}
catch
{
ModelState.AddModelError("Email", "Should not be empty or invalid");
}
return View();
Note: this applies to all of my fields, not just my Email field, as long as they are invalid.
I have the following setup, where I am custom validating a textbox. It works fine as long as I am manually typing in the textbox and changing the text and focusing out of the textbox.
[Code]....
when I try to invoke validation change event from javascript (using JQuery 1.4.2)
function copyCity() {
$('#<%= tbpCity.ClientID%>').value = "Some City";
$('#<%= tbpCity.ClientID%>').trigger("change");
}
the custom validation is not being invoked.
How can I inovke customvalidator to do validation?
note: I have verified this works on FireFox but not on IE. how to fire change event in IE.
I was able to find examples throughout the internet that more or less accomplished what I needed to be done, but now I have run into some problems. I need to be emailed the form data when the users submits it and then the user needs to be redirected to a thank you page, in this case "thanks.asp". I have been unable to get the form to redirect users to the thanks page, and in my efforts I think I might have messed the email process up as well.
[Code]....
I have a Gridview with a number of Template fields, where the values are all binded to a DB.
I can handle the validation in the codebehind (C#) fine, as far as that singe control.
BUT
I want the validation to be dependent on one of the controls in a Different TemplateField
ie.
Template A
Template B
Template c
Template B & C dependent on Template A
i have a form which has two textboxes and a submit button.on entering data and submitting data gets stored in the database.but if i again refresh the page the same data again gets stored.How should this be prevented?
View 3 RepliesI came across the following given a asp.net page containing
<div id='test'>
<input type='checkbox' id='ch1' name='ch1' runat=server />
<input type="button" id="view_test" />
</div>
and the following jquery code to show this div in a dialog
$("#view_test").click(function() {
$("#test").dialog({ show: 'slide', width: 600, title: 'View Check' });
});
If view_test button was clicked, initializing the dialog, before the form post backs the checkbox ch1.Checked property in .Net is always False. However if you just postback without initializing the dialog it works as expected.
I was using a view to create an object for my specific project, but now I have to adapt this to another requirements, such as the creation of this object must be integrated in the creation of another one. The thing is, that this object must be created before starting to create the other one, and the way of doing it will be poping up a modal dialog box with JQuery with the form to create it. I've got to adapt the creation and it works fine, except for the validation messages. It is made in the controller like :
[code]...
I have applied validation through JQuery Validation Plugin on my page. The validation works fine but once the Clear button is hit to clear out all the fields on the form, and then the save button is clicked again, the validation doesn't fire and the form gets submitted. I have called the following javascript function on click of Clear button to clear out all the form fields :-
[code]...
The Clear button is on a ChildPage and ResetForm function is on the MasterPage.
I want to validate some asp.net textboxes with the jQuery Validation plugin found at[URL], but it appears that the elements must be between a form tag. If I have just a couple elements, I would hardly call that a form, so I would rather not have them wrapped inside a form element. Is there a way around this? Also, if I have two buttons on the form, a cancel and a submit button and I want the form only to validate when the submit button is clicked, but not the cancel button, how is this accomplished?
View 2 RepliesI have and problem of validate my element from the out side the form tag.
Here I am describe what I have done and what i need :
[code]...
now this TxtSite element is out side that SiteDetail form and i want to validate this element when i have submit data this validation should be validate.
I have a form that resides inside a jQuery UI dialog, the form have some fields such as first, last name, etc... and also allow file upload. I can't use Ajax.BeginForm() since ajax doesn't allow upload (or does it?), so I have to use the regular Html.BeginForm() for my form to call my ActionResult. But I need to do some validation on the server and displays the response within that form, or displays a message if the form successfully posted. How do I displays the message in that jQuery UI modal dialog?
View 1 Repliespoint me to a source where I can learn to create a form using dropdown, radio buttons, and other controls and then have web users submit information to me via email or post to SQL database so that it can be used. Do I need to be looking for sources via other languages such as php or javascript or can this be done easily using asp.net and visual studio.
View 3 RepliesI have a web forms web application (asp.net 2.0). When the user submits the form I have the submit link actually going away so they can't submit it again. However, they could press F5 and that is causing another insert into the database, which I don't want to have happen.
Is there a setting of some sort that I can set if/when they do press F5 to tell the page - don't submit again?
I have 6 required field validators and 1 custom validator. ErrorMsg is common for required fields so I have set that msg to validation summery headertext but the problem is that error message is coming with custom validator too. In case of custom validator I want only customValidator error messsage not Header text. How can I do that> Do I have to add new validation summer for custom validator with no header text OR there is any smart solution?
View 1 RepliesI want my Start Time and End TIme should not be equal to each other and I want the End TIme should not go beyond the Start TIme. For example:
Start Time = 8:30 AM
End Time = 8:00 AM
The above example should have an error because the End Time go beyond the Start Time.
My HTML code:
Time In:
<cc1:MaskedEditValidator ID="mevStartTime" runat="server" ControlExtender="meeStartTime"
ControlToValidate="txtStartTime" IsValidEmpty="False" EmptyValueMessage="Time is required "
InvalidValueMessage="Time is invalid" Display="Dynamic" EmptyValueBlurredText="Time is required "
InvalidValueBlurredMessage="Invalid Time" ValidationGroup="MKE" ForeColor="Red" />
<asp:TextBox ID="txtStartTime" runat="server" Text='<%# Bind("StartTime", "{0:t}") %>'
[Code] ...
Time Out:
<cc1:MaskedEditValidator ID="MaskedEditValidator1" runat="server" ControlExtender="meeStartTime"
ControlToValidate="txtEndTime" IsValidEmpty="False" EmptyValueMessage="Time is required "
InvalidValueMessage="Time is invalid" Display="Dynamic" EmptyValueBlurredText="Time is required "
InvalidValueBlurredMessage="Invalid Time" ValidationGroup="MKE" ForeColor="Red" />
<asp:TextBox ID="txtEndTime" runat="server" Text='<%# Bind("StartTime", "{0:t}") %>'
[Code] .....
My web app has payment form that need to be submitted to another ASP.NET page (lets call it http://vendor.com/getpay.aspx)residing on another server.
That page will do some mumbo-jumbo works and then redirects it to the acutal
payment gateway site.
when i post my payment form to getpay.aspx via simple HTML form, it works and redirects fine.
if i change the form and its hidden inputs to server side controls, it doesn't work. their page is throwing viewstate exception.
I need the form hidden inputs to be server controls so that i can bind some values generated by my code behind.(i think i can do this like the classic asp way using <%= %>, but it is like going back in standard!)
I tried HttpWebRequest in the code behind, it posts the form but the browser doesn't redirect to Payment Gateway page. I am posting the payment info over non https, how can i prevent the user tampering with the posted data?.I want to validate the payment form in the backend then post it, i couldn't trust the user input data.Also the result was returned to my redirect page with query strings appended. It is also happening over the non https. how much i can trust this redirect data?
I have an asp.net page in an iframe where all links target _blank
<base target="_blank" />
But I want the form on it to submit to _self (i.e. the iframe where the page is located) when the one button is clicked. The form is an <asp:Panel> with an <asp:Button> control for submitting it.
Where can I set the target for this form? Since there isn't a <form> tag or an <input> tag in the file (ASP.NET makes them when it renders the page), I don't know how to change the target to override my <base> tag.
I am a beginner in ASP.NET. I coded for contact and enquiry forms submission (data is submitted to access db & then mailed to desired client) , its working fine on all browsers except IE! Both forms data is submitted to tblForms table of [URL] /contact/default.aspx
<asp:TextBox ID="txtName" Text="Name" maxlength="50" CssClass="text_field" runat="server"></asp:TextBox>
I have a code that must be run ONLY IF a user posts data into a form. Posting data can be made aether by pressing submit button or pressing enter on keyboard, so here is the issue. So in short I need a translation of this php code if there is such translation in asp . net of course.
PHP Code : if($_SERVER['REQUEST_METHOD'] == 'POST')
I have listbox where I am binding values from my database. Now my requirement is when user select values from listbox he/she can select only 4 values from listbox. If user select less than 4 or more than 4 values. I need to show validator that you can select only 4 values. How to achieve this?
View 1 RepliesI am building a simple support call system and part of the system requires that the engineer go in and update any calls he/she is working on. What I was wanted to do was make it so that when the engineer types in all his info and then hits update, the formview not only posts the data he/she has added to the database but also then sends an email to the user with the updated details.
View 2 RepliesOur team working on flash/Asp.net shopping cart projectsIn our projects we need to get previous flash file data.After two or three form submission the first page flash file data are missing.How can we maintain the state of flash file data?
View 1 Repliesi have a form which allows the user to key in the data and then submit.
if everything works well on this action result, then i will redirect the user back to a thank you page.
my problem right now is that when the user click on the back button, they will be able to go back to the form page and the inputs will still be there.
and if the user just click on submit again, i will be getting some potential weird bugs.
so in terms of asp.net mvc, what's the best way to handle users who click on the back button?
After submitting a form, i would like to read that it is actually there, before giving my succesfully submitted message. How would i go about checking that in the easiest way?
View 4 Replies
