Model Properties Not Set When Returning To Controller For Post
Sep 3, 2011
When I click save on the view, the model being sent to the save method of the controller has no values set, they're all default values. I'm actually using the exact same technique from another project... The data is populated just fine in my view, I can edit it and click save, the code enters the SetSiteTerms method in the controller but has none of the data from the view.
Model:
Imports System.ComponentModel.DataAnnotations
Imports System.Runtime.Serialization
<KnownType(GetType(SiteToA))> _
Public Class SiteToA
<ScaffoldColumn(False)> _
Public Property ID As Integer = 0
[Code] .....
I've updated my view and controller. Why my model is populated, can be editing in the view but when I post with the save button, the model sent to the controller has no data???
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Apr 26, 2009
I am wondering what I am missing in the attached code that is making it impossible for me to make the VB.NET program below work using MVC (Model-View-Controller). Right now, I am really lost despite my best efforts...
I am trying to implement the observer pattern and think that my code is getting closer to MVC but not quite there yet, firstly because it wont even run ... nevertheless I know that there is someone out there who knows what I am doing wrong and I would definitely benefit from any guidance or help that someone more experienced in MVC VB.NET implementation can give .. hence this letter.
[Code]...
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Aug 10, 2010
I have an MVC application where all the data is tied together by VisitDate table in my database. The home page is a strongly typed view of type VisitDate, all it does is pull up some simple data. Now, here's where I'm having a problem. I need a link that passes the current model in the view back to a separate controller action so I can render a different page with different data. Here are my two controller actions. I'm going from News.aspx to FrontPage.aspx and hopefully passing SchoolVisit. [Code]
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Jul 11, 2011
Currently I have a aspx page that is defined as[code]...
How do I change this so that the javascript fires, runs my validation and then hits this controller action?
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Apr 23, 2012
I have a table with several rows of data that I need to return to the controller. In my view, I initially load the table by selection of a time period and clicking a button. The table loads all my relevant records but one of my table cells contains a dropdown list. So I should be able make a selection in the dropdown click "update" and my controller saves the changes.
So everything works until I try and save. The model that is sent to the controller is completely null. The list property I have tied to the table cells returns to the controller null.
[Code]...
NOTE: This is written in VB.NET but C# help is welcome. I am familiar with both languages in MVC.
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Dec 18, 2009
To make this easier I will use a concrete example using movies and genres. A genre can be associated with many movies. Genres can increase over time and so can movies.
The use case is as follows. The user wants to filter movies by selecting his/her desired genres.
So, I have a page where at the top there is a section where the user can pick any combination of genres to filter on using checkboxes. Below that is a list of movies that are in those genres.
In MVC I am trying to implement this using a ViewPage(of IDictionary(of Genre, Boolean)) where the boolean is whether or not a particular Genre has been selected for filtering.
I then go into loop that creates checkboxes for them to select:
<% for each genre As KeyValuePair(Of Genre, Boolean) in Model %>
<%=Html.Hidden("genre[" & i & "].Key", genre.Key.ID)%>
<%=Html.CheckBox("genre[" & i & "].Value", genre.Value)%>
[Code].....
I am aware this can be done using Ajax and I will most likely do it using Ajax but I would still like to know why this doesn't work.
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Jun 21, 2011
I ham developing a Silverlight RIA solution that needs to return a hierarchical model from the server which is declared as below.
Imports System.ComponentModel.DataAnnotations
Imports System.Collections.Generic
Imports System.Runtime.Serialization
[code].....
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Jul 7, 2011
am currently trying to do this in MVC3, VB.NET.
Consider the following model:
Public Class SampleData
Public Property PTY_1 as String
[code].....
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May 30, 2012
I have a thumbnail generation routine that I created using WIC for a .NET app. It has been working fine for the past year, but we just migrated to a new server.
[Code]...
I have checked and the picture data is valid data. The exact same picture works fine if I run the code on the old server.
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Jan 22, 2012
I have a GridView with a Checkbox on the first column: Code: The thing is that the Checkbox.Checked always returns False. How can I get the checked state of the Checkboxes in this scenario? Or what would be the best approach into updating the aforementioned column? P.S. Note that click on the checkboxes doesn't post back. Nothing happens on the page until the user clicks Save (and that is the intended behavior).
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May 24, 2010
I been trying to create a database of files. I wanted to list the Titles and Authors of the files.
How can this be done?
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Mar 15, 2012
I have an ASP.NET web application (VB.NET) using an Oracle database. On an insert, I need to get the identity of the inserted row back. I am trying to use RETURNING, but I keep getting a value of 1 returned.
Dim strInsert As String = "INSERT INTO L.TRANSACTIONS (LOCATION_KEY, TRANS_CREATOR, TRANS_EMAIL, TRANS_PHONE) VALUES (:location_key, :trans_creator, :trans_email, :trans_phone) RETURNING TRANS_ID INTO :ukey"
[Code].....
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Jun 11, 2009
Having a problem with sending a file via HTTP post in vb.net. I am trying to mimic the following HTML so the vb.net does the same thing.[code]
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Dec 12, 2011
My brain may just be fried since it's the end of the semester, but my teacher kicked this back to fix and resubmit...she said that I am "returning the name of your function rather than your variable name".
Here is my code for all 3 forms.
code:
These are forms to calculate the cost of getting a cell phone package.
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Nov 25, 2008
<edit on 10th March 2010.>
Changed thread type to QUESTION. I was then able to mark AS ANSWER the relevent post which now also immediately follows this post and so it is easier to find as suggested by forum user j2associates .
<edit> It is also my 3rd post in this thread, the 8th one up, of my posts, from the bottom ( for now ), as the forum format has changed yet again.I will leave the rest of this post( as is ) purely for historical reasons. I have been on these forums long enough to see 3 forum changes. <edit> 19th May, 2010> Link added to a video on the next line of text.
[code]....
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Jul 29, 2011
I would like to get JSON result from another Controller and pass it back to client,here is the scenario:
using JQuery Client request for JSON from Controller A -->
Controller A pass parameter to Controller B and get's
JsonResult --> Controller A pass JSON back to Client.
What is the best way to approach this scenario??
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Jul 9, 2010
I have a blackbox (with a crude ftp server on it) which has an IP address, a file on it, a username and a password. I have a PC logged on to the local network and I want to write a VB.net program that sits on the PC and when the file is created it downloads that file. from the laptop I can type ftp:192.168.43.34 in to windows explorer and see the file without having to type in a username or password (username is set to Anonymous)I require a simple program that just points to the file (ftp:192.168.23.12/banjo.txt) and grabs it to a local path (C:\banjo.txt)I have looked everywhere and not found anything that works and not interested in paying $500 for a library.
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Aug 3, 2009
The default code that VS generates for HomeController is[code]...
Consequently, I was wondering if the "GET " blob of text actually does anything and if it is possible to fiddle with URLs without diving into the ASAX file.
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Oct 8, 2009
i have a application thats writen with the pylons framework. Now i want to call some controllers from a vb.net application. How should i do this? I've tried it like this:
Dim webclient As New WebClient
Dim dataStream As IO.Stream = webclient.OpenRead("http://192.168.0.20:5000/controller/default")
Dim reader As New StreamReader(dataStream)
Dim responseFromServer As String = reader.ReadToEnd()
[code]....
But instead of an json object that is generate by the pylons controller, i'll get the html code for the page which is reachable under "http://192.168.0.20:5000"
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Jun 13, 2012
I made a project where I have a basic DemoController[code]...
I should probably mention that my .aspx file is in another project than the web app. I build everything into a dll then put that into a folder in my web app project. The error I am getting is "The view '~/Views/Demo/Index.aspx' or its master was not found or no view engine supports the searched locations. The following locations were searched: ~/Views/Demo/Index.aspx"
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Feb 2, 2010
Is there a way to generate URL inside a controller? I want to do the following inside a controller instead of a view.
<% =Url.Action("Validate", "Home", New With {.ValidID = ID})%>
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Mar 12, 2012
I'd like to do a kind of overload of the actions in the controller.
Is it possible? 'Cause I havn't found any info about it. And when I tryed, I got this error.
The current request for action 'Create' on controller type 'InterviewController' is >ambiguous between the following action methods:
System.Web.Mvc.ViewResult Create() on type
[Code]....
I've tryed few things to get what I wanted. The last one was to copy what was done in the "Edit" action, but for an empty rank. (so I created an empty rank in my DB). I don't think it was a good idea (imagine someone wants to update the DB where idOpportunite = 5...)
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Apr 5, 2012
I'm looking to pass the value selected in the drop box when I click submit. Instead, it's passing a null value and I'm confused as to why.[code]...
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Jun 4, 2010
I've been working with code that polls a USB controller for changes using DirectInput, however I would much prefer I could make it event-driven instead (to cut CPU usage). Does anyone know if there is some method of doing this with DirectInput? I can provide the code upon request.
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Oct 12, 2010
I have an application that has multiple UI layouts, sometimes on tabs, sometimes the occasional separate form.I recently bought a pack of UI elements, and I'd like to use a ribbon control as the main navigation. For the most part I want the tabs on the ribbon to function like your everyday tabcontrol. The problem is that the ribbon tabs don't each have their own page for you to lay out your controls like the normal tabcontrol does.So right now I have the ribbon control at the top of an MDI form, and instead of using multiple tab pages I have many borderless forms, and when I click on a tab of the ribbon, I maximize the appropriate form and bring it to the front. This creates the illusion of tab pages by eliminating the control boxes of the child forms.
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May 15, 2012
I don't know what I've done bad, or what could have caused this bug : when I submit this form to the controller, the controller receives 2 empty fields here is the form inside the view :
@Using Html.BeginForm("contactSearch", "search", FormMethod.Post)
@Html.TextBox("SearchString")
@Html.DropDownList("opportunite", "Choisissez une opportunité")
@<input type="submit" value="Submit!" />
End Using
[Code]...
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Jul 11, 2009
I would like to use a Logitech wireless game controller. I imagine such a custom control already exists as a VB 2008 .net class library. I've tried to search MSDN but can't find anything.
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May 27, 2012
I know how to send data to com or virtual usb-com if it has physical com port number listed under "Ports (COM&LPT)" tab in the Windows device manager
' sending to device with physical COM port number"
Try
Dim searcher As New ManagementObjectSearcher( _
[Code]...
But how to send data to the device listed in "Universal Serial Bus Controllers" tab without any physical COM port number?
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Nov 4, 2010
I have built an application a while back and now think that performance would benefit from a MVC approach, so I am looking into that. If I were going to do this, I would need the controller to be able to replace itself. That seemed like it may be a problem, so I created a Hello World application to test it. Here's the
Form1.vb:
Public Interface IView
Property Controller As a_Controller
[Code]....
I have 2 questions:Will the 'old' controller objects still be in memory? Seems this could be a serious memory management issue after a lot of changes. It was my own decision to implement the factory in a module. My examples did not do this.
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Mar 14, 2010
i know how to make it but i want to know how to make tap controller as web browser.
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