Loop The FormCollection Using Mvc?
Aug 18, 2010I need to Loop my FormCollection to get Id values from collection.. I have something like
collection[0]
collection[1]
collection[2]
[code]...
I need to Loop my FormCollection to get Id values from collection.. I have something like
collection[0]
collection[1]
collection[2]
[code]...
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
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.
Example:
<input type="text" name="textBox1" value="harsha" customAttr1 = "MyValue" />
My question is how can i access the value of customAttr1 from the above eg from inside the controller.
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?
View 3 RepliesI 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.
View 1 RepliesI am just wondering how you'd iterate through elements in a form input array when you get the FormCollection object on postback?
View 3 RepliesI 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?
In my ASP.NET MVC app I am rendering out a checkbox using the following code:
<%= Html.CheckBoxFor(i=>i.ReceiveRSVPNotifications) %>
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:
<input id="ReceiveRSVPNotifications" name="ReceiveRSVPNotifications" value="true" type="checkbox">
<input name="ReceiveRSVPNotifications" value="false" type="hidden">
So the FormValues collection seems to join these two values since they have the same name.
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?
What would cause the formsCollection now to be passed to the controler? i have to be missing something.
[Code]
<%
{%>
<%
[code]...
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 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.
View 1 RepliesIm stuck with declaring a string which is in a loop within another loop.
Dim CompanyDetails As String = ""
Dim CompanyRow As DataRow
For Each CompanyRow In newdt.Rows
CompanyDetails += CompanyRow(1) & " " & CompanyRow(0) & "<br/>"...
How can I get this to see the GetInfo as declared..... since its in a loop within a loop?
i have a checkboxlist that is being bind from a sqldatasource i want to be able to loop through whatever the user selects and store/update it to the data base. I want to do this with a foreach statement in my code behind but i dont know how since i dont have a listitems in the checkboxlist.
View 1 RepliesI am getting out parameter of type DbType.Xml in .net code. What is the better way to loop through all the records and do some operation.
View 1 RepliesFor Each Control In Page.Header.Controls How can I do something as above, at the moment getting the error "Control is a Type and Cannot be used as an expression" The Complete Code is as follows Try ' I only do this on my production servers, so I declare those here.'
If Request.ServerVariables("server_name") = [URL] Then
' Allow scripts and css to logged in CMS users'
Dim checkLogin As New Controls.Login
If checkLogin.IsLoggedIn <> True Then
For Each Control In Page.Header.Controls
If Control.GetType.Name = "EktronJsControl" Or Control.GetType.Name = "EktronCssControl" Or Control.GetType.Name = "EktronModalCss" Then
Page.Header.Controls.Remove(Control)
Else
' Removes the extra bubble inline style stuff that wasn't put in a CSS.''
Dim litControl As LiteralControl = Control
If litControl.Text = Nothing Then
litControl.Text = ""
End If
' Removing blank.css file'
Dim htmlLink As HtmlLink = Control
If htmlLink.Href = "/css/blank.css" Then
Page.Header.Controls.Remove(Control)
End If
End If
Next
End If
End If
Catch ex As Exception
End Try`
I have a DataSet and i would like to loop through it according to the data fields, fill class from those values.
View 19 RepliesI need to loop through all my db records, append some text a specific column (for all records), and save back to the db.
View 3 RepliesI have an issue with a Loop that doesn't actually loop. I've posted a simplified version of my code below. Basically, using the NPOI excel library, I have an excel file with data on the first and second sheet, so I need to do a loop to get through both sheets. Below is what I have done so far, however this only works through the first sheet and then exits. It fails to increment the variable w. As you can see, there are other loops implemented in this code which function fine so I don't get it.It's been a very long day and perhaps I'm missing something very simple. I could have it placed wrong or something. If anyone else can spot what I might be doing wrong I'd be very grateful :)
public class SalesFileProcessor : ISalesProcessor
{
public List<FTPSalesRow> ProcessSalesFile(string filename)
[code]...
I have a scenario to open the PDF files in for loop from server folder.
Can you please provide sample code to open the pdf files in for loop?
using c#.net/asp.net
new to C# question: I am in an iteration of a for loop and if a condition exists I want to jump to the next iteration of the for loop, how do I do this in C#?
I have some files listed on a listbox and want to upload them to the server. The values doesn't need to be selected. But I can't even get it working. Below is my source code:
[Code]....
Where is the bug in the code above?
I have a requirement that i have to send few values through querystring to other domain.
Ex: My Domian is [URL]
Other Domain is [URL]
Now, In a for loop i have send values to the other domain through url like [URL]
But i have to get response then only i have to send second record. like [URL]