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...
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'm trying to build a process that will repopulate an item that was inserted into cache every 30 minutes. I inserted the item into Cached to expire after 30 minutes. I setup a delegate (http://msdn.microsoft.com/en-s/library/system.web.caching.cacheitemremovedcallback(v=VS.90).aspx) to be called when the cached item expired. My goal was when the delegate was called was to rebuild the item and insert it back into cached. The issue I found with the MSDN article above was that it was using a holding the page instance open until the delegate was called. Instead of had it call another class that was static (vb shared). This caused a different problem -- the delegate lost context. When I tried to add back into the cache the HttpContext.Current was null. Is there a way I can repopulate an item in cache every 30 minutes in ASP.NET without keeping page instances around? Note, I cannot use a sliding expiration date because the content will change.
I have written a page that accepts new information and then repopulates the page when a button is clicked. This is a simple task in C#, but seems very complicated in ASP.net. The code seems to work fine on the first click, but the after the first click, the page no longer repopulates. Closer examination reveals that although the values are changed on the page, the actual values held in memory remain the same; ergo, new results are the same as the old. Now...I see that on some controls (such as RadioButton) there is an automatic postback feature, however, I cannot find this for a button. Of course, I am presuming that the Postback is the problem....OR... perhaps it's something else? My preference is not to use javascript, but I of course will if that is the only way. I am still amazed that (after all this time) ASP still has to rely on Javascript for certain features.
I'm using ASP.NET MVC 2 and here's the issue. My View Model looks something like this. It includes some fields which are edited by the user and others which are used for display purposes. Here's a simple version
public class MyModel { public decimal Price { get; set; } // for view purpose only [Required(ErrorMessage="Name Required")]
[Code]....
But doing this, I get an error on UpdateModel(rec): The model of type 'MyModel' could not be updated.
I want to call the webservice method for repopulating the contains of cascading dropdown.
I dont want to write onparentchange method.
Requirement is simple. But dont know how to proceed.
On parent selection four dropdown will populate.
Now if I select the first child dropdown then again acccording to the choice of parent and first dropdown second, third and fourth will populate. And like wise.
Now how to call the webservice methods after selection of first one to repopulate the containt of the second, third and fourth dropdown.
I've 2 dropdownlists, both are binded to a cascadingdropdown. Whenever I select an option in the 1st dropdownlist (parent), the options in the 2nd dropdownlist (child) will repopulate based on the options I selected in the parent dropdownlist. I need a javascript function to reset the options of both dropdownlists in their initial state (the prompt text).
I've tried changing the selectedIndex of the parent dropdownlist. However, this only changes the selected option in the parent dropdownlist. It does not reset the child dropdownlist to its initial state (which is supposed to be disabled and without any options). Need the script to reset the chained dropdownlists?
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
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'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 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.
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'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.
I have a Datagrid control which is populated with data from an Access database when the page loads - a simple 'Select *' command. This page also contains a text box and a button, the idea being that the user can then filter the data by entering a value in the text box and clicking on the button to pass the new parameter to the datasource.
However, I cannot get this to work, I know it has something to do with 'IsPostback', but I am at a loss. I have tried variations of the following in the code behind page but to no avail.
After hitting the insert button the insert stored proc is run. if the record already exists then stored proc returns a specific value.I need to refill the details view textboxes with the values the user typed in.I am using the ItemInserted event handler.I seem to reference the control okay but the text doesn't change...even when I replace the command.parameter to just a literal text like "test".
TextBox tNPA = DetailsView1.FindControl("InsertName") as TextBox; tNPA.Text = command.Parameters[0].Value.ToString();
So what am I missing. I also tried a detailsview1.databind() before and then tried after the above line and still no luck.
I want to make sure I go about this in an efficient manner. I have a gridview. On the gridview, I have some columns that are read only values . These values go through calculations based on values in a database. The stored procedure takes information in the database, does some simply calculations (this value * that value / another value type of stuff) then returns a recordset as a datasource for the grid.
Other columns on the gridview have values the users can enter data. I want to be able to provide a recalculate button that will run calculations based on the entered values which will change the readonly values and then repopulate the gridview's read only values without going back to the database. This recalculate button is not the save to the database button. The save to the database button will take the values in the user entered columns and save them to the database. Then, the next time the grid is called, the page calls to the database and loads the grid.
So, what I'm looking to do is allows for recalculations on a gridview, a gridview with about 24 columns and about 1000 rows. My first thought is to create a class that reads the gridview and then applies the business rules, then updates the gridview some how. Or, maybe have a dataset table thats i read the value from the user inputs, then apply business rules and then bind the gridview to the dataset table. Do any of you have thoughts here, maybe have done something like this?
