MVC :: Fetching Attribute Values From FormCollection?
Jan 28, 2011
My application writes custom attributes to input controls using Helper classes. And also we are loading the UserControl dynamically so we need to use FormCollection to get the posted values. Is there a way that we can access attribute values from FormCollection object.
I want to know which fields were edited in a form in the Edit Action. I have a Log field in a table named "someTable" which I wish to add the change to, along with the Username of the current user. This is a simple implementation:
[Code]....
Can someone tell me where I am going wrong, because the getChangedAttributes function always returns an empty list (assuming because "backupTable" and "form" contain the same values? But shouldn't they be different?
I'm using jQueryGrid and an Action method to populate search results based on some filter criteria, how to pass this form collection values to Action method from Javascript function.
am using master page in visual studio 2005. I want to fetch the drop down value which is there is the master page in my child page using the code below
I have one page on which there are 6 labels and six text box for subject apart from this there are 2 to 3 other text box and label for studnt information. i want to do in such a way that if i enter student enroll no i get his/her name ,dept,sem,all subjects on 6 labels and marks related to subject in text box. In table there are fields
Marks_Entry Student_Enroll Student_Name Sem Program subject Marks
1 sss 1 BCA Basic Communication Skills 75 1 sss 1 BCA Mathematical Foundation 85
[code]...
now when i am entering roll no in form then student name ,program, sem is fetched but in label 1 to label 6 same subject name that is 1st subject name is copied and in text box also first marks are fetched in all textboxes..my c# code on student enroll textbox is this
is it possible to change attribute values on a non-asp.net controls (like an image)? I can change attributes on buttons and the like, but not on images? btnID.Style.Add("display", "inline") This works for a btn, but if I try to use this code to reference image (or even just try to make the image disappear) - it does not work Further info: I am using this code on a drop down list - basically when the user makes a selection i want to remove an image (make it invisible or visible) or change its display attribute (e.g. to inline). It does work ok for a real btn - but i can't reference an image ID.
When you are entering an attribute value, what is the shortcut to jump out of the quoatation marks? It's a lot like hitting enter after you select an enum value for, say, a color or anything like that, that is also in quatations marks. When you hit enter, it fills in the value, jumps outside the quotes and lets you happily continue coding on your way. However, in instances where you are filling out, say, an id value, there is no Intellisense and hitting enter, tab, or whatever will not jump out of the quotes.
Ive got a scenario where a form is filled in and the action picks it up as a FormCollection. It then carries out validation on it and if it fails sends it back to the form again, however i cant seem to get it to re-populate the form.
If i do something like:
[Code]....
So it just looks for name in whatever is passed over... ideally i dont want to involve a model unless it has all validated fine, but if there is no other way around it can populate a model and do the validation on the model instead...
FYI I am using .NET 4.0 / MVC 3. In my controller, the following is my code:
[HttpPost] [ValidateInput(false)] public ViewResult Edit(ContentTemplateView contentTemplateView, FormCollection collection)
Everything works fine when I don't enter HTML, so I know the proper controller is being fired. Also, I have following set properly in my web.config files:
<httpRuntime requestValidationMode="2.0"/>
I only get this problem when I include the FormCollection (which is needed for this particular Controller). So what exactly am I doing wrong? [I have done what was proposed on the following questions, and they work as long as there is no FormCollection. None of them offer a solution with an included FormCollection] Why is ValidateInput(False) not working? Asp.Net MVC Input Validation still firing after being disabled ValidateInput Attribute Doesn't Seem To Work in ASP.NET MVC
I'm overriding the OnActionExecuting method in a base Controller. When a form gets posted - anywhere, I want to check for a certain form element in this method. In any Controller method I can just include the FormCollection as one of the params in its signature, but if I try that with the OnActionExecuting method I get an error saying that there's no suitable method to override. How can I get past this?
I have a strongly typed view for my User edit action. When I press edit all the fields in Users model is filled with values from the DB. If I enter an invalid data for a particular field say email, then the view throws an error, but after that the email field contains data pulled from the DB and not the one which i entered previously.
I will explain to you in steps if my explanation is confusing.
1.Click the edit action. 2.A page displays with all fields in my User model. 3.Email field contains : johnson@company.com (pulled from the database) 4.I try to change the email to "johnson@company1" (This is an invalid email id) 5.The form does a post back and return an error saying that email id is invalid. 6.Email field contains : johnson@company.com (pulled from the database) and not "johnson@company1"
Is there a way to convert the FormCollection to an User model and send it back to the view?
Now I see that this renders both the checkbox input tag and a hidden input tag. The problem that I am having is when I try retrieve the value from the checkbox using the FormCollection:
FormValues["ReceiveRSVPNotifications"]
I get the value "true,false". When looking at the rendered out HTML I can see the following:
I am currently developing an application with the new ASP.NET MVC2 framework. Originally I started writing this application in the ASP.NET MVC1 and I'm basically just updating it to MVC2.My problem here is, that I don't really get the concept of the FormCollection object vs. the old Typed object. This is my current code:
[AcceptVerbs(HttpVerbs.Post)] public ActionResult Create(FormCollection collection) {[code]....
What are the benefits of switching to FormCollection in MVC2 and more importantly - how is it used properly?
I have a basic form that renders data out to a form like so (from Northwind):
<% using (Html.BeginForm()) { %> <h2>Region Selection</h2> [code]....
In addition, I have a controller that is called when the form is posted back:
[AcceptVerbs(HttpVerbs.Post)] public ActionResult Index(FormCollection collection) { [code]...
The problem is that none of the data in the table is being captured in the FormCollection in the Post. The TextBoxes pass data as expected so I know the wireup is working.I read from some other posts that you need a value for the name property - but that did not work. Also, I read that you need to put the data inside a TextBox inside the TD. Instead of grasping at straws, does anyone know the best pattern to pass the data from a Table back into the FormCollection?
btw: I tried to copy/paste formatted test in from Word. No dice. Ugh.
I created a simple Master Page in Visual Studio 2008:
<%@ Master Language="VB" CodeFile="MasterPage.master.vb" Inherits="MasterPage" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
and got green underlined 'Master' with two warning messages: 1.Validation (ASP.NET): This attribute name must be followed byan equal (=) sign and a value. If the value is in quotation marks, the quotation marks must match. 2. Validation (ASP.NET): Attribute 'Master' is not a valid attribute of element 'Control'.How I can get rid of the messages?
I'm passing a List to an MVC view and generating checkboxes for each object in the list (The checkboxes are named t.Name).I'd like to be able to tell which checkboxes were checked once the form is posted. However, I'd like to avoid using the FormCollection object.
