If I were to use singleton pattern for menu, would that cause that menu to be created once for application session or once for each user session. Obviously, I want something that will create menu items once per application session.
View 2 RepliesIn one of the interview, I was asked why should we have to go for Single Design pattern, instead of just creating static methods. Because creating static methods also serve the same purpose, i.;e avoiding flooding of objects.
View 1 RepliesI have a class which fetches the data from the database. Say First name, Last name , Telephone number etc and display it in my .aspx page. This data is common to all the users. So i would like to use Singleton pattern so that the object is not created again ,just use the created object for all the users. Can any one help me with the simple code snippet example.
View 3 RepliesI have a web application where I would like to pull user settings from a database and store them for Global access. Would it make more sense to store the data in a Singleton, or a Session object? What's the difference between the two?Is it better to store the data as an object reference or break it up into value type objects (ints and strings)?
View 3 Repliesi'm building a web application with asp.net c# and i have a class that i want to use in multiple pages witouth instantiate it every time. I need to load the data in it and never lose them during the user session time. I thought about the singleton-pattern but it shared the instance of the class beetween browsers.
View 4 RepliesI am working on singleton desing patterns and want some real world example of design patterns.Can you please give me an example how you have used singleton pattern in you project. I would appreciate if you can provide code.
View 3 RepliesI'm developing a blog application shared by non-profit organizations. I want each organization to be able to change their own blog settings. I have taken a singleton pattern (from BlogEngine.net) and modified it. (I understand that it is no longer a singleton pattern.) I have tested this approach and it seems to work fine in a development environment. Is this pattern a good practice? Are there issues, which may arise when this is placed in a production environment?
public class UserBlogSettings
{
private UserBlogSettings()
{
Load();
}
public static UserBlogSettings Instance
{
get
{
string cacheKey = "UserBlogSettings-" + HttpContext.Current.Session["userOrgName"].ToString();
object cacheItem = HttpRuntime.Cache[cacheKey] as UserBlogSettings;
if (cacheItem == null)
{
cacheItem = new UserBlogSettings();
HttpRuntime.Cache.Insert(cacheKey, cacheItem, null, DateTime.Now.AddMinutes(1),
Cache.NoSlidingExpiration);
}
return (UserBlogSettings) cacheItem;
}
}
}
(Portions of code were omitted for brevity.)
I have a whole bunch of data access methods where in each one I am doing this
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and them moving on with my SqlCommand and SqlDataReader and so on.Is this creating to many instances of an SQLConnection?I was thinking doing this instead. Creating a SqlConnection Manager which would look like this
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and then in my database access methods
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Is this a good or bad idea and why?Also would this even be neccesary?
I know what Singleton Pattern means and Abstract class means.What I wanted to know was how would this apply to real world.Could anyone give me any good example or simple explanation.Say I have a simple website, why would I use any of the above if any.Why would it simplify my architechture.
View 3 Replieswant to make sure I am not assuming something foolish here, when implementing the singleton pattern in an ASP .Net web application the static variable scope is only for the current user session, right? If a second user is accessing the site it is a different memory scope...?
View 4 Repliessome samples for designing the menus and sub menus in html with styles and hover etc
View 8 Repliesin one of my page i need to display the menus & sub menus dynamically,for this i have a menu table called colleges & one more table called branchs 1] ABC
Science ArtsCommarce2] EFG mathszoology historylike thissome times the menus are 3some times they may be 4,5,6 may randommy incresesfor this i have the two table one is menu & sub-menus
am new for learning asp.net using c
View 2 RepliesI need regex patter for following code.Text with length either 9 0r 16 should only be allowed.
if (txtId.Text.Length != 16 && txtId.Text.Length != 9)
{
//lblError.Text = "Please enter a valid ID";[code]....
We have an ASP.NET MVC site that uses Entity Framework abstractions with Repository and UnitOfWork patterns. What I'm wondering is how others have implemented navigation of complex object graphs with these patterns. Let me give an example from one of our controllers:
[code]....
It's a registration process and pretty much everything hangs off the POCO class Person. In this case we're caching the person through the registration process. I've now started implementing the latter part of the registration process which requires access to data deeper in the object graph. Specifically DPA data which hangs off Legal inside Country.
The code above is just mapping out the model information into a simpler format for the ViewModel. My question is do you consider this fairly deep navigation of the graph good practice or would you abstract out the retrieval of the objects further down the graph into repositories?
Does anyone have a working pattern for converting a GET-POST-GET pattern to asny?
I'm encountering the following issues:
1. You cannot mix Sync and Async action methods SubmitForm(), SubmitFormAsync(bool? confirm), SubmitFormCompleted() ... (because the resolver gets all confused ... it doesn't use the HTTP verb to decide who to target. BTW: I think that's poor design, or a bug)
2. Renaming the get method name to something else eg: SubmitFormConfirmation(), SubmitFormAsync(bool? confirm), SubmitFormCompleted() would be very awkward if it works ... because you have to doctor the <form markup to specify an action name.
3. You cannot give them all async names SubmitFormAsync(), SubmitFormAsync(bool? confirm), submitFormCompleted(), because the call just keeps malfunctioning. It sometime even behaves as if you are requesting a delete of something.
Can someone give an insight from an actually working sample.
How to change the values in gridview on text change of templated control without databind again?the value of templated text boxes should change If i change the value of one of the templated textbox then accordingly(By mathematical calculations) the vlaues of all tempated textboxes should also change.
View 7 RepliesNow that the next version of ASP.NET MVC is being prototyped and previewed (ASP.NET MVC 3 Preview 1 came out a couple of weeks ago), I wonder if we should call the attention of the Core Dev team (S Hanselman, Phil Haack and all) to this "feature."there a easy/non tacky way of associating subdomains → areas?Something like:
[URL]Also, whats the best accepted design pattern in implementing PRG pattern in ASP.NET MVC? I guess it should also get some official loving in MVC 3.
I have placed a list box and a text box with Selected Index Changed and Text Changed event repectively in an aspx page. Now If I write somthing in text box and then with out clicking elsewhere select a value in list box, then first Text Changed event of text box is called then selected Index Change event of list box is called. After that again Text Change event of text box is called. Can any body give some insight why this happening? Below is the .aspx code:
[Code]....
I have an asp page with a textboxes, labels and other controls. I cannot get the .text to change in any of these controls. I click on button which I execute code that I expect to update the text but it doesn't work. Something like Textbox1.text = "Hello" Are there page level properties/settings I should look at? I am perplexed an looking for a place to start. I will provide more information as needed. I just don't know where to start.
View 3 Repliesi have radgrid in my asp.net web page with some columns and rows in each row i have some checkbox that they are in one column. so i have one checkbox in each row and column.
i want when the check box checked, write in header that checkbox(in that column) write the number and so in that row, write the diffrent number. i want it occure client-side.
im using gridview to read data from datasuorce(my access) and im editing data using 'enable editing' from smart tag(in design window .aspx), now i want to change the edit text: edit(i hav named it as edit) to 'view' for one particular user whose name:'sunil'?
this is my table(in my access layer and calling this data through datasource of gridview):
[code]....
I want to change text of text object in crystal report (.rpt file). The datasource for the report is a datatable which consists of a column named sale, if it is '0' then I want to display the text of text object as 'sale' and if it is '1' then I want to display the text of text object as 'lease'. how to add formula and based upon the result of formula I have to change the text of text object being displayed.
View 1 Repliesif i have a label with text initially and i would like to update the label's text with a textbox.text.. how should i do that?
View 2 RepliesI created a new project in VS2010. It automaticly creates masterpages and other stuff.
In the login page i create a connection with my local database. To test my login-routine i want to change te text of a label.
I wanna do this with behind code (C#).
But i continue get errors that the refered label doesn't exist: Error 1 The name 'Labeltest1' does not exist in the current context l:DocumentenVisual Studio 2010WebSitesWebSite1AccountLogin.aspx.cs 46 13 l:...WebSite1
I tryed different solutions, but nothing .
[Code]....