I'm in the process of re-writing an existing survey application that is currently using nested repeater controls to display questions and answers. The application was not designed with future enhancements in mind and its a pain any time a new question has to be added to the application. The repeaters currently contain questions, answers, and controls(texbox, radiobuttonlist,etc.)
Is the repeater the correct control to use for this type of application? What is the best way to design this type of application and table structure? Are there any new controls or features in VS2010? How to design this application the correct way and make it more flexible?
can't connect to sql 2005 express sp1 and vs is also sp1. 2) Which my guess is because of the database connection not being able... design view is not able to pull in the application for design, it's as if there is no theme and css just white background and black print.
I have a development box running Win7 and VS2010. A User Acceptance Testing server running Windows Server 2008 / Sql Server 2008 and a Live server running Windows Server 2008 / Sql 2008.
When doing development I connect to a development database on the UAT server.
I have a problem that only occurs when I change the connection string to point to the database on the Live Server.
So, before I start describing the problem - the app works fine in development and when published to the UAT server - but there is a problem when I either publish it to the live server or, whilst on my dev box, point the connection string to the live database.
Here's an example.
I have a page with a gridview on it. In each row of the gridview there is a drop down list. All calls to the database are done through a Data Access class.
Say I have a function on an .aspx.cs page called GetDetails().
In this - to populate the Gridview I'll have something like ...
I had another thread on this problem but I wanted to start this one so no one had to look at the code I posted in the other thread. I have a successful connection but want to display data from the SQL database on my website in my Windows form application. Here's the code I have so far. Used some of the ADONET Tutorial1 here. The table Ray Rover Activation has a number of different columns but to start out I just wanted to see if I could display data for the EmailAddress column.
Code:
[code]....
If I comment out the Sub DoStuff I don't get any errors but neither is anything displayed other than the messagebox message. If I don't comment out DoStuff then I get an error, "Incorrect syntax near the keyword 'FROM'". Maybe someone could enlighten me some on what I need to do get the data in the column EmailAddress to display.
I need to develop an application, which will get records (orders) from one application and process them. The updates to this records (order updates) will be sent back to the source application for end customer reference. I'm planning to achieve this data synchronization at the database level using triggers and stored procedures to insert database between the 2 databases.
But, the issue is I have to deploy this application in 3 different customer sites and I have to change the database names (cannot use the same database name) in each deployment manually. Because of this deployment issue, I was thinking of handling this within the asp.net application where I can store the db name in the database and then build the query within the application, but I dont want to do it as building queries like that doesnt look very professional.
I have a very strange problem with my website... I created a rather large page, consisting of a few tables with some labels and textboxes where the user can enter a mechanical car setup (it's for a racing game).
I was working with simple textboxes previously, but I recently switched over to a NumericBox control which should allow only numeric input using some client-side javascript. The NumericBox control is simply a UserControl with a single TextBox on it, and some client side events are added to this textbox which call methods from a single javascript file ("Scripts/numericValidator.js")
When I put a couple of these boxes on a page it works just fine, I can only enter numbers. For it to work though I need to add the script to the page and I do that using this line, either in the head content or in the body content controls:
(the path is chosen with the 'Pick URL' dialog so it should be alright, and it does indeed need to go up two directories first as the page is in the '~/Pages/RequireLogon" directory) However, after replacing most of the textboxes on my large page with NumericBoxes, and adding this script line to my aspx code, the design view is 'broken'. I cannot see any of my controls anymore, and I cannot even put any new controls on there. It seems like the Content control is missing, even though it's still there just fine without errors in the aspx code.
When I remove the script line, the problem is fixed again, the controls re-appear. So it's definitely the script line causing the problem, but I cannot see how it could...I tried it with a new blank page and the problem appears there too. If I use this simple page with just a button:
Is there a way to know what parameters are needed by an event in Visual Studio 2010?Let's say I have a DropDownList control and I want to bind a method to the "OnSelectedIndexChanged", I would do something like thisn the ASPX File:
I upgraded to VWD Express 2010 and cannot edit text in the design view only the source view. Clicking on the design view takes to the code behind page.
If I create a test page without masterpages I can work in design view.
After I imported a VS 2008 web project to VS 2010, I can't view aspx pages that have master pages in design mode. The page design mode displays "error creating control - contentplacehoder1 object reference not set to an instance of an object." The project builds and runs fine though. I have only one master page that all other aspx pages reference and I don't have any nested master pages.
I installed the AJAX Toolkit (for .NET4) onto a new Toolbox tab in Visual Studio 2010. However, when I try to drag any of these controls onto my Web form in design mode, they won't stick. My mouse pointer changes to 'disabled' (a circle with a diagonal line thru the middle) as soon as it hovers anywhere over my target form. Is there some additional action I need to take to make VS "recognize" these AJAX Toolkit controls?
After opening an existing proyect in visual studio 2010, the web form in design view doens't work. All server control puts a gray box with the following message : Error Creating Control - imgTransportistaSession state can only be used when enableSessionState is set to true, either in a configuration file or in the Page directive. Please also make sure that System.Web.SessionStateModule or a custom session state module is included in the <configuration><system.web><httpModules> section in the application configuration.
I am working with a financial application and am looking for the best solution for designing my application.
We have 100's of stored procedures where most/all of our business logic sits. We have WCF web services projects built using Web Service Software Factory (http://servicefactory.codeplex.com/). We have stored procedures built for nearly everything (tables, dropdowns, etc..) and each of these stored procs have their own webservice exposed to be called by the web application. Each web service is a very simple method that calls the stored procedure with the exact paramaters of the web service. I am not too sure if this is the best design and would like to ask for suggestions and alternatives to the design. Does anyone else have a similar environment ? How is it implemented on your end ?
While designing (and then implementing) a layered application:
Is it correct to use the same ORM objects accross all layers? (which would go against encapsulation).
Or the presentation, business and data layer should each have their own objects? (which would lead to lots of code repetition).
e.g. (just to illustrate the question): if one uses Linq to SQL in the Data Layer and Visual Studio's O/R designer to generate the ORM objects, are those objects supposed to be used in the Business and Presentation Layers as well.
i.e.: Are the objects associated with the entities that the application handles a crosscutting issue?
I've been asked to re-write an existing VS 2003 applicatoin in VS 2010. The application contains multiple sections that allows certains users the ability to edit based on security roles. Each user is able to view the sections. There is ton of code to enable/disable section permissions for each user. Is there a better option available in VS 2010? I'm not too familiar with MVC and not sure if it would work in this scenario - each section should be available when the users login.
I've got a web application with 3 layers: front, business and data. I'm using linqToSql for retrieving my data from the db. On the front end, I'd like to show the data that's being pulled from the database. In online examples all code is shown in the same layer. I'm wondering if it's good design to put a reference to the linqtosql classes in my front end so I can bind the results to my gridview, or whether I should use a different way. Since the user should be able to update the data, the easiest thing would be to use the gridview, connect it to the linq2sql datasource and bind it that way, but that would totally defeat my 3-layer structure.
I'm about to begin designing the architecture of a personal project that has the following characteristics:
Essentially a "game" containing several concurrent users based on a sport. Matches in this sport are simulated on a regular basis and their results stored in a database. Users can view the details of a simulated match "live" when it is occurring as well as see results after they have occurred. I developed a similar web application with a much smaller scope as the previous iteration of this project. In that case, however, I chose to go with SQLite as my DB provider since I also had a redistributable desktop application that could be used to manually simulate matches (and in fact that ran as a standalone simulator outside of the web application). My constraints have now shifted to be only a web application, so I don't have to worry about this additional level of complexity.
My main problem with my previous implementation was handling concurrent requests. I made the mistake of using one database (which was represented by a single file on disk) to power both the simulation aspect (which ran in a separate process on the server) and the web application. Hence, when users were accessing the website concurrently with a live simulation happening, there were all sorts of database access issues since it was getting locked by one process. I fixed this by implementing a cross-process mutex on database operations but this drastically slowed down the performance of the website. The tools I will be using are:
ASP.NET for the web application. SQL Server 2008 R2 for the database. probably with an NHibernate layer for object relational mapping. My question is, how do I design this so I will achieve optimal efficiency as well as concurrent access? Obviously shifting to an actual DB server from a file will have it's positives, but do I need to have two redundant servers--one for the simulation process and one for the web server process?
I'm trying to build a small, web application. But I want to use desing patterns in it. So I have a question: which desing patterns do you use and why in asp.net applications?
designing a view for Mobile browsers in ASP.NET MVC framework. I am new to this mobile web application development. I learned already how to provide a diffrent view when the request comes from a mobile browser. but now i need to learn, how to design the view with a good look and feel. I have demo this weekend with my client so i would appriciate if some one respond imidiately.
I'm trying to decide which of the two factory patterns I should use in my Asp.Net applications:
1 : All DAL providers derive from same abstract base class DepartmentsProvider, which defines public interface of the class ( all the necessary CRUD methods for which derived classes (providers ) provide a concrete implementation ). BLL layer instantiates correct provider by calling DepartmentsProvider.Instance:
public abstract class DepartmentsProvider { static private DepartmentsProvider _instance = null; /// <summary>[code]....
In first case we implement new provider by deriving from DepartmentsProvider class, while in second case new provider is implemented by deriving from DBProviderFactory. What are pros and cons of each implementation?
I am starting to design my own CMS , and i want it to be modular to add more functionality later by me or by any other developer I put my eyes on joomla CMS (very popular ,robust and extensible) I want to make a CMS with asp.net to be just skeleton and all functions are done through components
Functions like :-
User management Content Management ,editing and display etc.
My main idea is to let the skeleton to know from the query URL the required component and pass all other parameters to it and the component do the rest (parse parameters display results etc.)
the problem is how to achieve this how to call the component and and how to let it render its UI and pass it to the skeleton to put it in the appropriate place in the main site template
i am working on a asp.net webforms app, and i have to create 'dynamic order lines'That is : you select a product and a quantity, and the amount is calculated.
To visualize: this is on one 'line', so forst product dropdown, next to it the quantity textbox and next to that the amount label.
Then you click 'add another product', and another 'line' is added with a product dropdown, quantity textbox and amount label.
So you can click add and add and add....
Now i was thinking how to implement that, and i came up with two choises:
'add html client side' and 'add user control server side'
The first looks more fancy of course, but i also have to create some server side code to generate the lines again, when the user says 'go' but after validation i have to warn the user for example the amount was over credit or the quantity was to high. Then i get the 'client side' added html, and i have to reproduce that in my code behind, am i right?
On the other hand (add user control server side), i have to create a new user control on 'and another product' postback, which might look easier in the beginning because it's all strong typed, and the client side (jquery / javascript) isn't?
And one more thing: there is a possibility (they are not sure yet) that this functionality is wrapped within a 'section', with an address box and call it an order.And then: the user can add that 'section' also multiple times, so he can create multiple orders in one page, so i have to create multiple sections for an order, and within that order have the possibility to add another product.It looks like it will be hard to do this client side, especially with generating id's?
