Web Forms :: Form Validation Before Moving To BostBackUrl?
Jan 7, 2010
Having an issue with some form validation. Everything works great right up untill I add a postbackurl to my button. Any ideas on how I can make my form check validation before the postbackurl is used?
The page has three "forms" on it (not form tags though), this is an example of one of them (not tidy yet as I do that when it works!)
I have been developing in C# for a while. But I have never had the need to develop a web application now I have the need.
I have opened a project with asp.net webapplication and created the first form which I can get to display in my explorer.
Now I need to be able to click on a button, close the current form and move to the next form I will move data between the forms once I can get the form open.my normal c# code would be something similar to this.hide(); newform _newform = new newform();_newform.show();
I am using a "Detail View" to edit the data in my "Customer" table. The fields are "CompanyName", "ContactPerson", "StreetAddress", and "City". If I type data into the first field ("CompanyName") and then press the "tab" key, control moves to the second field "ContactPerson". However, if I type data into the first field ("CompanyName") and then press the "Enter" key, instead of control moving to the second field ("ContactPerson") the program closes the form.
Is there someway that I can control the action of the "Enter" key so that this will not happen?
Also, is there any way that I can have control move from the first field ("CompanyName") to a field other than the seconc field ("ContactPerson") if the content of the "CompanyName" field contains the value "Internal"?
I have two repeaters bound to object collections. They both work fine. But when I move repeater B to repeater A's FooterTemplate the serverside declaration of repeater B disappear.This is not a parent/child relation.
Can anyone tell me how to re-display a form when validation fails, i'm having a problem in that when i submit an empty form, the whole ascx file is returned with textbox and button etc.
i have post detail page (asp.net, umbraco cms), with search box and post replay box.the problem is that when user try to search using the search box, it cause validation error in the post replay box.the search is client side form.the post replay is server side form.you can view it live at:[URL]
I have a form with a number of validators. When I click my Submit button the validators fire and I can see my error messages, however the Form still submits and calls my onclick event. Does anyone know what's causing that? The form shouldn't submit with errors.
I have a page that I'm working on that I trying to do the following with:
1. Name a file upload.txt (with codebehind) every time a file is uploaded with a user pressing a submit button.
2. Validate that the file is a .txt file (again with codebehind)
3. Lastly, once the user presses the submit button, that a sql query is run.
I realize that .xml is the proper way to do this but as I'm new to .net, I want to do this with simply inserting the sql query into the codebehind. Here is my codebehind thus far: [Code]....
Here is the sql query that I want to insert into the codebehind above:
bulk insert dialerresults from '\MSBWEB3data est.txt' WITH [code].....
I should also comment that I am writing this in .vb as opposed to .cs and also I am using asp.net 3.5.
I am a completely new to ASP but have been given the task of creating some simple forms for my employer. how I could validate the Email, Website fields? And also make the Post Code a required field?
I have a form for the user to add a Contact's details. Within this form I have fields to enter telephone, mobile, fax numbers etc.
Each have a separate textbox for country code, area code and number. Basically, what I want to do is have validation on these fields so that all or none of the textboxes are filled.
So if the user just adds a number in they are required to enter also the country code and the area code. Or if they don't enter any of the details then the validation will not kick in.
I am using two button click events and some required field validators . If I click the first button the fields in the other button also validates
I actually want to validate based on the button click if a first button is clicked only the fileds which are under button1 should validate not the fields which are in button2.
Is there any way to add a confirmation dialog to a submit button when the form already has other validation controls and a summary control using "showmessagebox=true"? I tried adding
OnClientClick="return confirm('Are you sure?');" to the submit button, but that seems to block all of the other validation?
When I Login the page using username and password and then click the logout button and after again click Login button without entering username and password it will be login,I want to show error
I am using one datalist control for uploading multiple images.I hv used one Asp:FileUplaod Control and one button in one itemtemplate.I am using reqired field validator and regular expression validator for file upload cntrl I am assigning validation group for both of them on ItemDataBound event of my datalist so that each upload cntrl hv same validaton group as required field and regular expression validator.Now what i want to do is - i want to show my error message in validation summary which is right at the top of the page.I want one know how to write javascript that will assign validation group of my control in datalist on which i click ?
I have two fields in a form that a user can only put either 0 and 1. Both cannot have same value. if first amount is 0, the second amount must be 1. and someone show me how to write a validation in Javascript that I can call it from JS.file At the same time, I want to be able to create the same validation when the form is generated dynamically. so the Javascrip validation has to be created from code behind once the input form is created. If you have any link in the site that can show me lots of this kind of example, I want to learn this stuff.
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 :
In my User Registration Form, I want my user address text box to accpet alphanumeric as well as special character but should not contain only numeric or special character. I am currently using regular expression validator ,what regular expression i can use. Or Is there any different solution for that.
The problem is that when I submit a blank form back to the controller, I get redirected to the "its valid" page, meaning that the form passed validation.
I've a radio button list which expands a section of a form depending on which item is selected. While I've got this working, how do I switch off the validation for the (additional) form items when the form is not in the expanded state? Do I group the expanded section form control validations and turn off that validation group? Is that the best way to do it and if so, how do I do that in C#.net?
I'm using the latest RC with asp.net mvc 3, and have turned on unobtrusive javascript validation and added the necessary scripts to the page. All of the validation works perfectly, but when I try to submit the page, it simply doesn't post. If I turn unobtrusive javascript off in the web.config without making any other changes, everything works perfectly fine.
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?
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:
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.