I'm trying to make a call to a controller via jQuery $.post, but the parameter for my controller method keeps getting a NULL value despite it appearing to be setup similar to other controller methods.
CONTROLLER
[AcceptVerbs(HttpVerbs.Post)]
public ActionResult SearchWeatherLocations(string searchFor)
{
//Do Some Magic
}
[Code]....
Why is a null parameter being passed to the following controller action?
public FileContentResult GetImageForArticle(ArticleSummary article)
{
if (article == null || !article.ContainsValidThumbNail()) return null;
return File(article.ThumbNail, article.ThumbNaiType);
}
from the following partial view:
<%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<IEnumerable<AkwiMemorial.Models.ArticleSummary>>" %>
<%if (Model.Count() > 0) [code]...
I'm using a custom route to create the following URL (http://mysite/subscriber/12345) where 12345 is the subscriber number. I want it to run the ShowAll action in the Subscriber controller. My route is firing and using Phil's route debugger, when I pass in the above url, the route debugger shows ID as 12345.
My controller is accepting an int as subscriberID. When it fires, the controller throws the error "The parameters dictionary contains a null entry for parameter 'id' of non-nullable type 'System.Int32". Why does the route debugger show a value and the controller doesn't see it?
Here's my route (first one is the culprit)
routes.MapRoute(
"SubscriberAll",
"subscriber/{id}",
new { controller = "Subscriber", action = "ShowAll", id=0 },
new { id = @"d+" } //confirm numeric
);
routes.MapRoute(
"Default", // Route name
"{controller}/{action}/{id}", // URL with parameters
new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults
);
I'm getting a null in the ShowAll action? Here is the action method signature:
public ActionResult ShowAll(int id)
UML and Patterns: An Introduction to Object-Oriented Analysis and Design and Iterative Development, that follows the UP(Unified Process). It uses a Grasp Controller pattern to interact with domain classes by some methods like NewSale(), AddNewItemToSale() and CloseSale. In windows form, I can instantiate a object of this class in the UI and then use its methods to perform the actions. This works well in Client apps, but when I use asp.net mvc, I cannot find a way to instantiate an object (one for each user) that was always visible for a Controller (MVC). I cannot insert as an attribute inside Controller because it always create a new one.
View 1 Replies my MVC2 delete and only my delete controller is refusing to return any class information. Its really similar to my edit function and the views are all auto-generated so I don't see the problem.
Function Delete(ByVal id As Integer) As ActionResult
I have a simple model where a Person has Gifts. I have a view which is a list of Gifts belonging to one Person.
My problem is with the Create action for a new Gift. I want it to default to the PersonID that we are already viewing the list of Gifts for. I tried simply passing the last PersonID (they are all the same)
Html.ActionLink("Create New", "Create", new { id = Model.Last().PersonID }) which works fine if there is already at least one Gift for that person but if this is the first Gift I don't have a value.
My Gift List controller knows the PersonID I want to pass but the view doesn't.
How do I pass this PersonID from my Gift List controller to my Gift Create controller via the Gift List view? Or is there a better way to do this?
I have a filter on my MVC web site. I display some records in a few different controller actions but when moving from one action to another I want to apply those filter values.
How can I persist values from controller to controller?
Should I use Session? TempData?
I am using Structure Map for IOC.
Maybe I could have a class that contains a Property for each Session Value that I use in my application and inject it on the controllers that need session?
How do you get the current action / controller name in a controller or class?
i can't show it in my view but that's not what i want.
C#: HomeController.vb: works fine HttpPost RsvpForm gets the object filled with user input.
using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.Mvc;using RsvpInC.Models; namespace RsvpInC.Controllers{ public class HomeController : Controller { //
[code]...
I have a User entity and a department entity. I have a UserViewModel and DepartmentListModel which has List of departments.
UserViewModel has a property of type DepartmentListModel .
Now on user/create action I need to populate DepartmentListModel by calling DepartmentController's list action. List action returns populated DepartmentListViewModel.
From UserController how do I set DepartmentListModel ?
I tried doing so
[Code]....
But RedirectToAction returns RediretToRouteResult
I have setup my business object to have a create_date and edit_date members both datetime datatypes. My company want to display the create_date and edit_date fields in a gridview for each transaction. The problem i have is that after insterting a record it will have a valid create_date but no edit_date and when displayed in the gridview it defaults to datetime.minvalue (My default). How on earth do i show an empty field in my gridview for a null datetime field in the database?
I am using similar architecture to the Imar Spaanjaars example of a tiered solution. With a few small tweeks it has worked well for me for ages. I am passing a List<Database> to my object datasource which connects to my gridview.
I have 2 table Table A, Table B.
Table A - Parent Table
ID - Uniqueidentifier not null(PK)
Table B -Child Table
ID - uniqueidentifier null(FK, TableA)
I have a stored procedure to insert data into Table B, but when I tried to insert a null value into column ID of table B, this error came up:
The INSERT statement conflicted with the FOREIGN KEY constraint "FK_tableB_tableA". The conflict occurred in database "database name", table "table A", column 'ID'.
The statement has been terminated.
The insert statement in asp.net is like so:
sqlcommand.parameter.add(New Sqlparameter("ID", Nothing))
I am guessing adding nothing to the null value column is the problem, but i don't know how to fix it... The INSERT statement conflicted with the FOREIGN KEY constraint "FK_tableB_tableA". The conflict occurred in database "database name", table "table A", column 'ID'.
I have a problem with a SessionVariable. I will explain what is happening:
1. From the default.aspx I send Session["LoginByAdmin"] = "Dummy"; and then redirect to this page where I have the code below. So the Page_Load sees that this Session["LoginByAdmin"] != null and enter this page. This works fine !
2. In the Page_Load, I later fill a ListBox1 with foldernames.
3. With Button1_Click1, I will now delete the choosen Folder in the ListBox1 wich works fine the first time and the ListBox updates the new existing folders in the ListBox. (I have wrapped this inside an updatepanel)
The problems comes now when I try to delete a choosen folder in the ListBox1 the second time in a row. When I select a Folder in the ListBox1 and now Press Button1, I will be redirected to "Default.aspx". This meens that this code is running: (That meens that Session["LoginByAdmin"] == null and I have not set this to null anywhere. This is my big question how this variable can be = null here?
if (Session["LoginByAdmin"] == null)
Response.Redirect("Default.aspx");
break;
[Code]....
I am using dropdownlist in my view page with some values which will display corresponding ID(primary key of other table) in my database.If i leave my dropdownlist blank and save it in database then its showing null parameter error. Can you explain how to use this reference type to overcome this error
View 2 Repliesi am using the following in a stored procedure.
[code]....
[Code]....Handling NULL...Field not updating when NULL?
Say I have several Areas that are baed on user roles.Differnet roles have different functionality, but also have some "shared" functionality like say "Payments"Now, I created a PaymentController (and it's views for listing, creating messages) in Shared (not an area) and it works fine.
Would it be possible (and how?) to create a PaymentsController class in one of the Areas, have that inherit the PaymentController Class in Shared?
If I can do this, I can successfully share common functionality across areas, and at the same time extend the derived controller to include some 'area specific' functionality to common shared controllers. (Such as the "REturn to xxxx" text and route of the returnurl, which are a bit more complicated than I just made it sound)
In my code behind, I have the following code that I want to insert a null value for a parameter. Instead of doing that, it is adding the word "NULL" to my database. What am I doing wrong?
dsRevealedByCR.UpdateParameters.Add("txtGrantor","Null")
How can i transfer control to a controller's method from a controller's method..I am having two Controllers Home and User.. After username and password are verified inHome Controllers method , i want to show the User Controllers index page , so i have to callindex method of Home controller..How can i do it.
View 5 Repliesm getting this error again and again. i m also using the ajax modalpopup extender in my page ..
View 3 RepliesMy site was woking fine, now i noticed that i get an error "Microsoft JScript runtime error: 'null' is null or not an object" when i checked the view source, i saw the following system generated code
<script type="text/javascript">
var Page_ValidationActive = false;
if (typeof(ValidatorOnLoad) == "function") {
ValidatorOnLoad();
function ValidatorOnSubmit() {
if (Page_ValidationActive) {
return ValidatorCommonOnSubmit();
}
else {
return true;
}
WebForm_AutoFocus('txtMailAddress');// --> IS THIS RIGHT???? out side the braces???
</script>
</form>
</body>
</HTML>
and a reference to this line below
<IFRAME id="__hifSmartNav" name="__hifSmartNav" style="display:none" src="/m2qa/WebResource.axd?d=fvL5WUdiCo1B4KvdiJfkfg2&t=633546432952161750"></IFRAME>
here is my code for selectiong some records from db table
string strSql = "select * from mtblNBD where SentTo=@SentTo and InternalStatus Is NULL order by DeadLine desc";
SqlCommand com = new SqlCommand(strSql, con);
com.Parameters.Add("@SentTo", SqlDbType.NVarChar, 50).Value = (string)Session["uname"];
here I am using parameters for SenTo field but not for NULL so it is ok... or should I use parameters for this field where value is NULL , if yes then how can I use parameter for this
I have a View:
<div class="editor-field" id = "nick">Nick <%: Html.TextBoxFor(model => model.Nick)%><img src="/Content/Images/loading.gif" alt = "loading...."/>
<%: Ajax.ActionLink("Check", "Check", new AjaxOptions { UpdateTargetId = "check-valid", LoadingElementId = "loading"})%>
</div>
I used: Nick = ViewData.Model.Nick in ActionLink as below, but I cannot get value of Nick from View.
<%: Ajax.ActionLink("Check", "Check", new {Nick = ViewData.Model.Nick}, new AjaxOptions { UpdateTargetId = "check-valid", LoadingElementId = "loading"})%>
I have an edit application view, and it can be found at the following URL:
http://localhost:17262/Application/EditApplication/1
1 equals the application ID.
Also on the page I have a link that goes to another view to add an assistant for the application. I want to pass it the application ID so that the new assistant can be "linked" to this application. How would I get the value of 1 and add it to my action link? This is what I have in my HTML so far:
<%: Html.ActionLink("Add New Assistant", "Create", "Assistant", new { applicationID = "id" }, null) %>
I've added some custom properties via the <profile> node in the web.config. In a view, I can access the custom properties using <%= Html.Encode(Profile.CustomProperty) %> so I know the class is being automatically generated. However, in the Controller, the ProfileCommon just doesn't exist. Do I need to include a specific namespace for this to work or is it simply not supported?
View 1 RepliesI cant get to directcontroller url (I have change the routing so it will fit into my paging system but I cant fit it also to get the controller url without action (I can gethttp://localhost:51443/home/inde )but I would like to get also "clean" url like http://localhost:51443/home
[Code]...