MVC :: How To Implement Optimistic Concurrency In The Movie 3 Project
Mar 17, 2011
I tried to implement Optimistic Concurrency in the Movie MVC 3 project.
1. I added a new property
[Timestamp]
[ConcurrencyCheck]
[DatabaseGenerated(DatabaseGeneratedOption.Computed)]
public byte[] RowVersion { get; set; }
2. Modified controller to execute
var movie = db.Movies.Find(model.Id);
db.Movies.Attach(movie);
TryUpdateModel(movie);
db.SaveChanges();
return RedirectToAction("Index");
3. Added the RowVersion as a hidden field to the View page
@Html.HiddenFor(model => model.RowVersion)
It didnot work for me, can someone pls point me to the right direction?
View 1 Replies
Similar Messages:
Aug 6, 2010
In what way is used optimistic concurrency?
I need to connect two tables together.
If you use optimistic concurrency at the same time, users will store data in a table?
In particular, I wonder what the difference is, if I save the aspx, or use optimistic concurrency.
View 1 Replies
Jan 16, 2011
How should I solve simulation update, when one user updates already updated entery by another user?
First user request 'Category' entityobject, second user does the same. Second user updates this object and first user updates. I have field timestamp field in database that wa set to Concurrency Mode - Fixed.
This is how I update:
[Code]....
Exception never jumps...How should I handle this?
View 15 Replies
Jan 27, 2011
I'm currently learning from a ready-made tutorial here and I'm at this step [URL] Now my question is : How do I add the database to my project and don't use SQL Server Express? I created the MvcMusicStore database completely on a SQL Server instance, and modified the web.config included follow code
<connectionStrings>
<add name="MusicStoreEntities"
connectionString="Server=.192.168.161.1; Database=MvcMusicStore;Trusted_Connection=true"
providerName="System.Data.SqlClient" />
</connectionStrings>
All other code is same with Tutorial,but the program don't work? I got an error "Entity Command Excution Exception" at this line: var genres = storeDB.Genres.ToList();
View 1 Replies
Jun 24, 2010
I want to implement the MVP in my project. I want that when I click a button appear some letters on the textbox.
View 5 Replies
Oct 11, 2010
I want to implement audit trail in my project. This implies keeping track of changes made in DB and later generating a report for specific data.
I'm looking for solutions other than triggers as in to have a generic solution for DB Audit trail in my project.
We'll probably be using Entity Framework 4.0. I want to explore the audit trail capabilities for the same any pointers in this directions would be helpful. also any ideas for DB Audit trail if we use Enterprise Library Data Application Block. Note:SQL Server 2008 has auditing features, but we'll not be using the Enterprise version.
View 1 Replies
Dec 29, 2010
I want to implement resource based access in asp.net mvc project.For example i have create employee, edit, delete employee and view employeei want to implement a funcitonality where administrator can assign resources to user for example user with moderator can only view employees and user with administrative priviledge can create, edit, delete and view employees list.How can i implement this functionality?Any articles on internet on this topic?
View 4 Replies
May 7, 2015
How do I implement fresh desk API in my project (ASP.NET C#)?
View 1 Replies
Sep 30, 2010
there is a tutorial about ASP.Net Application but i am using ASP.Net Web Site so i don't have unload edit name feature like stated here [URL]
View 1 Replies
Sep 22, 2012
I want to implemet mail merge with my on going project, I know well how send news letters to authorized clients, but need to do it with mail merge like the email from this forum.
View 1 Replies
Mar 18, 2010
I've been working on this for a while now and nothing has been a bigger pain in asp.net. I'm trying to implement custom profile fields in my visual studio 2008 web application project. I've read a lot of tutorials but they all seem to be either out dated or don't apply to web application projects. Last night I got a little closer to solving the problem when I found the "Web Profile Builder" for web applications. I've successfully set this up and can handle static profile data.I've got my web.config file setup and I can access my custom profile fields by Profile.CustomField. Now I want to figure out how I integrate this with the database and data connection. I know there are two standard ways to handle this, I would like to create new columns in the aspnet_Profile database (rather than the delimited key/value option).I'm pretty new to asp.net and this is my first project with c#, .net, and asp.
View 3 Replies
Feb 5, 2010
I am trying to implement a website that was developed on a test server and make it go live. I am running into an issue with a function within the DB that decrypts a password. Here is the function
USE [ward2004]
View 3 Replies
Oct 8, 2010
Does record locking (Pessimistic and Optimistic Locking) is applicable in ASP.NET application? If so, What is the pros and cons on doing this?
View 3 Replies
Jul 5, 2010
I followed the tutorial at [URL] At 12:04 in the video, the author, Stephen Walther. inclues the line return View(_entities.MovieSet.ToList());
When I tried to compile this I get an error: Error 1 'MovieApp.Controllers.MoviesDbEntities' does not contain a definition for 'MovieSet' and no extension method 'MovieSet' accepting a first argument of type 'MovieApp.Controllers.MoviesDbEntities' could be found (are you missing a using directive or an assembly reference?) P:experimentMovieAppMovieAppControllersHomeController.cs 18 35 MovieApp If I just enter return View(_entities. then Intellisense offers Equals, GetHashCode, GetType, and TosString.that _entities is not being interpreted because of insufficient referencing? My (introductory) understanding is that it is looking in the DataModel.edmx (or the entities design surface) for DataMovies. In an earlier part of the tutorial, we created a datamodel called Movies. In the DataModel.edmx Model Browser, I can see EntityContainer: Movies. So, then, why might _entities not be seeing this?
In looking at the model browser, it also contains an Entity Set called Movie1. However, I tried using
return View(_entities.Movies.ToList());andreturn View(_entities.Movies1.ToList()); But neither compile. What should I change to get the program to compile?
View 13 Replies
Jul 1, 2010
I load a flv movie into my project, so I can set its dimension manually but how can I get the dimension of flv movie by programming?
View 2 Replies
Jan 14, 2010
Exception Details: System.ArgumentException: Value cannot be null or empty.Parameter name: nameI am following the example in the ASP.NET MVC Framework unleashed page229.
View 4 Replies
May 8, 2012
I'm putting together a help page for my web app and figured that rather than the usual 'Help' file stuff, I could put a short video help file along with an explanation.
I have a page with around 12 topics, I'd like the user to be able to click a link and it shows a video clip (either .avi or mov file) on the page. It would be cool if the movie placeholder just showed the link to the movie that was clicked rather than a new page each time.
View 2 Replies
Aug 30, 2010
My project includes a grid view with some updtable fields, some fields throw an error on update and some do not and it does not really make sense. WORK_STATION_ID does not cause an error, ROOM _ID cause an error, both are int? (I am using c#) and for update I use the code liste below.
[Code]....
[Code]....
View 1 Replies
Aug 10, 2010
I am trying to handle concurrency in my application. Basically if user A has a support ticket open which currently has a status of 'Active' and user 'B' opens the same ticket and closes it (changing its status to closed), I would expect a confict execepton to be thown when user 'A' tries to close the support ticket. For some reason this is not happening. I have checked that Update check is set to 'Always' in the dbml file. Here is an exerpt of my code. // Update 'Active' lead to 'Close'
[Code]....
View 2 Replies
Oct 14, 2010
i have a hotle reservation system.
when a user select a room i want that it lockes and an other person can not select it.
i think it`s better that i have a flag in my table and when a user select room value of is false and if cancle reservation ,i changed it true.an other person can see room that they have true value .
View 7 Replies
Jan 13, 2011
I have the following problem:- I have a Settings table which has a value column, that is incremented everytime a Job is created (I use Entity framework to add the job and to update the value increment). So, I have something like this:
[Code]....
The problem is: I have a asp.net with concurrent calls to SaveJob Method. In this code, the value is shared, and if I call SaveJob 5 times for instance, the value column is 3, because the scope is not "locking" the other transactions until It's done, and the value is shared. I want to have the following scenario: Call SaveJob 5 times;Value column in Settings table is 5;Call SaveJob 3 more times;Value Column in Settings table is 8. I tried to implement something like pessimistic concurrency in EF, but I had no success. Whats the best way to handle that without using SQL Server queries directly? (like 'lock' and 'unlock' etc)
View 3 Replies
Nov 23, 2010
I want to know how to handle the concurrency throughy code ? ie: I want to access the Concurrency issue or error ? Because if i get the concurrency user or issue I have to do some manipulation.
View 4 Replies
May 8, 2010
I have a quicktime movie(Size: 1.5 mb Format: .mov) that I would like to play on the site when the site loads.
This movie will melt in with a backgroundpicture so it is important that there is no borders of any possible control that can hold this QuickTime movie to put the movie in the exact place.
I wonder what control that can hold a QuickTime movie like this ?
View 6 Replies
Aug 3, 2010
I add flash movie to my site but when I run my .aspx file movie is not shown in the proper place that I want. Here is my code. Is there an attribute that I need to add?
<object width="550" height="400" hspace="0" vspace="0" >
View 2 Replies
Jan 15, 2011
i am in the process of creating a restful service with WCF, the service is likely to be consumed by at least 500 people at any given time. What settings would i need to set in order to deal with this.
Here is a sample of what i have so far;
[Code]....
And this is an example of a method being called;
[Code]....
View 1 Replies
