Security :: Trying To Understand Static?
Mar 30, 2011If I have a singleton pattern as follows:
[Code]....
So Let's say User A is logges in first and does a following call:
[Code]....
Similar Messages:
Security :: Displaying Userid On Static Pages?
Feb 4, 2010I am working on a web application using C# wherein my task is to display the userid of the logged in user on all of the html pages. I have kept track of the userid using session on the aspx page and it works perfctly fine on all of the user controls and aspx pages throught the application. I have checked the post back state and the session works well.
View 4 RepliesC# - Is It Safe To Access .net Session Variables Through Static Properties Of A Static Object
May 10, 2010Is it safe to access asp.net session variables through static properties of a static object?Here is what I mean:
public static class SessionHelper
{
public static int Age
{
get
{
[code]...
Is it possible that userA could access userB's session data this way?
C# - How To Lock A Private Static Field Of A Class In One Static Method
Mar 26, 2011I have a private static field in my Controller class in an MVC web application.
I have a static method in that controller that assigns some value to that static field, I want to apply lock on that static field until some other instance method in the controller uses the value stored in the static field and then releases it.
DETAILS:
I have a controller named BaseController having a static ClientId field as follows and two methods as follows:-
public static string ClientId = "";
static void OnClientConnected(string clientId, ref Dictionary<string, object> list)
{
list.Add("a", "b");
// I want the ClientId to be locked here, so that it can not be accessed by other requests coming to the server and wait for ClientId to be released:-
BaseController.clientId = clientId;
}
public ActionResult Handler()
{
if (something)
{
// use the static ClientId here
}
// Release the ClientId here, so it can now be used by other web requests coming to the server.
return View();
}
AJAX :: Calling Non-static Methods From A Static Method?
Jun 30, 2010I did some research after posting. All I found was simple examples for no-layer architectures, like connecting to a database from your aspx page, so, in a corporate environment, it is unnaceptable.
I need to call a server-side method (using ASP.NET Ajax) in a 3-layer architecture.
For example, my Default.aspx contains a method LoadProducts().
[Code]....
[Code]....
This cannot change. There is no way to convert Business and Data layers to static.
How can I call the LoadProducts() method using ASP.NET Ajax?
Is It Necessary To Understand C# Before Going
Mar 3, 2010Do I have to get some C# class before taking C# programming lessons?
View 7 RepliesCan Not Understand The Error
Feb 24, 2010What is the meaning of this error and how to avoid it:
System.Web.HttpException: Server cannot modify cookies after HTTP headers have been sent.
at System.Web.HttpResponse.BeforeCookieCollectionChange()
at System.Web.HttpCookieCollection.Remove(String name)
at NopSolutions.NopCommerce.Common.NopContext.SetCookie(HttpApplication application, String key, String val) in D:ivolino_3D21012010Nop.CommonNopContext.cs:line 158
at NopSolutions.NopCommerce.Common.NopContext.SessionSaveToClient() in D:ivolino_3D21012010Nop.CommonNopContext.cs:line 127
at NopSolutions.NopCommerce.HttpModules.MembershipHttpModule.Application_EndRequest(Object sender, EventArgs e) in D:WorkOwnNopCommerceSolutionNopCommerceNop.HttpModules.MembershipModuleMembershipHttpModule.cs:line 140
MVC :: Cannot Understand Logic Of Edit?
Jan 3, 2011i cannot understand logic of mvc edit.for example
StudentReposirory students= new StudentReposirory();
// GET: /Student/Edit/5
public ActionResult Edit(int id)
[code]...
How To Understand The User Patterns
Feb 18, 2010i created an intranet based website(information Portal)...i would like to know the pages each user visits and i want track there behavior...what tools should i include..
View 2 RepliesUnderstand Polymorphism When Using Generics In C#?
Aug 25, 2010I am having a problem understanding how polymorphism works when using generics. As an example, I have defined the following program:
public interface IMyInterface
{
void MyMethod();
}.....
So, at least I haven't completely misunderstood that. I am unsure exactly how I am to write a method that accepts a generic collection of classes that conform to the same interface.
I have a plan to completely hack around this problem if need be, but I would really prefer to do it properly.
MVC :: Don't Understand HtmlAttributes Parameters?
Jan 27, 2010Don't understand htmlAttributes parameters? try this:
[Code]....
[Code]....
How to correct?
[Code]....
Understand Whether The Visitor Is Googlebot Or Not ?
Feb 1, 2011ow to understand whether the visitor is Googlebot or not ? ASP.net 4.0 & C# I mean i want to understand that if the visitor is Googlebot or not.
View 2 RepliesC# - What's The Best Way To Understand And Analyze Performance
Jan 9, 2010Until now, I have not create any massive applications using ASP.Net. However, I am looking to create an application that has the potential to be very performance intensive. So I am looking for some tools or best practices when it comes to performance. I would like to be able to know how to: See my current performance (good or bad) View items that need fixing And being able to compare two performance variable items would be great as well.
View 2 RepliesImplementing RadPanelBar / How To Understand Datafieldid And Datafieldparentid
Oct 28, 2010I have a table with 3 columns Itemid(int),Itemname(string),ItemDesc(string).. Im trying to use a radpanelbar to display this information, where the bar initially shows the item name and on clik/expansion it will show the item description.. I tried looking at the examples on telerik site but didnt understand the point of datafieldid and datafieldparentid. What are they used for and what would their values be for my table.. I tried using different combination of column names for these two ids but I still didnt get it..
View 1 RepliesUnderstand JS Execution On Onclick Event Of Button
May 28, 2010<input type="button" name="reset"
onclick="return ValidateValue(); __doPostBack('ApplyBtn','')" />
The above is the code generated for asp server button button control on browser. Now my query is that irrespective of ValidateValue() returning true/false __doPostBack('ApplyBtn','') function is not showing any effect for me. My understanding is that string passed to onclick acts like function body, and return will from first function will return control preventing second function from execution.
Is that correct?
Windows Workflow / Unable To Understand How To Implement
Oct 28, 2010I understand the concepts of windows workflow...But unable to understand how to implement it...Can anyone tell me some good sites which explains Workflow with coding???
View 1 RepliesPublic Static Variable Declared In Public Static Class MyGlobals In A 'Code File' Template?
Jan 27, 2011I have a question about C Sharp ASP.NET:Is there a difference (in code speed, resources) between:public static variable declared in public static class MyGlobals in a 'Code File' template;and the variable declared in a normal 'Class File' template;I use this variable in 2 different Class Files and also in _Default Page codebehind cs file.In fact in my case I need about 20 global variables of type List<string>.
View 9 RepliesAJAX :: Understand The Following Javascript Relate To AsyncFileUpload Control?
May 26, 2010in my current project I used a AsyncFileUpload control from AJAX Control Toolkits. After I got the async file upload part working, I needed to filter the file type so users can only upload image files. I found the following code off web and it worked well:
[Code]....
The problem is : I don't understand this javascript. What is the type of args parameter? Where are the methods such as "get_fileName()", "set_cancel()" defined? I went to the homepage of the
AsyncFileUpload control but couldn't find any documentation regarding the "args".
Architecture :: Understand Web Service Software Factory With Concrete Examples?
Apr 20, 2010how do I understand web service software factory with concrete examples? Is it wcf oriented?
View 4 RepliesC# - Outputcaching Vary Byparams In Webforms Understand Route Parameters?
Jul 1, 2010Does outputcaching VaryByParams in webforms understand route parameters? Such that if I have a route similar to "Content/{filename}/{more}" that I could do VaryByParams="filename" and have it return cached results based on filename and ignore any values in the more?
View 1 RepliesWorking With Static Variables / Store The User Specific Information In Static Variables?
Mar 5, 2011whats the exact use of static variables in overall programming in .net and for asp.net...
Recently i went for the interview where interviewer asked me 2 question which i was not sure for the same..
whats the use of session object, i said sessions are the server side object, they are used when you want to store user specific data at server side, then he asked what if i want to use static variables for the same, i was mum, can anyone tell me how asp.net will behave if i store the user specific information in static variables.If i use cookies which are the best option to store the data at client side (not sensitive one), but what if user has disabled cookies on his machine, will my application would crash.
C# - Understand This RegEx Statement / Validate Filename From Asp FileUpload Control To Allow Only Jpeg And Gif Files?
Feb 18, 2010Please help to understand this RegEx statement in details. It's supposed to validate filename from ASP.Net FileUpload control to allow only jpeg and gif files. It was designed by somebody else and I do not completely understand it. It works fine in Internet Explorer 7.0 but not in Firefox 3.6.
<asp:RegularExpressionValidator id="FileUpLoadValidator" runat="server"
ErrorMessage="Upload Jpegs and Gifs only."
ValidationExpression="^(([a-zA-Z]:)|(\{2}w+)$?)(\(w[w].*))(.jpg|.JPG|.gif|.GIF)$"
ControlToValidate="LogoFileUpload">
</asp:RegularExpressionValidator>
C# - Rootlevel HTTP Module - Unable To Understand The Master Page Path In The Virtual Directory
Mar 1, 2011I have a http module at root level which resolves to the virtual directory which is a .net application on some conditions as below.
I need the have the httpmodule at root level only for some requirements.
application.Context.RewritePath("/virtualdirecotry/root/pages/sample/sample.aspx", String.Empty, "");
the sample.aspx page uses a master page as below
<%@ Page Language="C#" MasterPageFile="~/Root/Pages/Master/Site.Master"
as it uses the relative path the http module is unable to understand the path and throwing following error
The file '/Root/Pages/Master/Site.Master' does not exist.
error occurred during the parsing of a resource required to service this request. review the following specific parse error details and modify your source file appropriately.
Visual Studio :: Unable To Understand The "build Deployment Package" In VS 2010
Jul 22, 2010I don't understand how to use this feature called "Build deployment package" in VS 2010. I go to my properties and go to package/publish web and setup it up. I click "Create deployment package as zip"
I then build the deployment package and get a zip file.
When I look into and start drilling down in the folders I find I get a path like this
[Code]....
I don't understand why it makes all these folders and on top of it why is it my path to where my soultion sits. I don't like the fact that now everyone can look in the zip and see my accoutn name, where the file was sitting, that I am using subversion.
Then it makes it so confusing to when a error happens. I deployed it on my IIS windows 2008 server and ran it and I had a error show up. It pointed to the file where the error occured and the path was point to my desktop.For the longest time I could not understand why it was pointing to my windows 7 machine desktop when it was running on a windows 2008 server located in a different country.
It was not until I found out with the zip path it made sense. But that is confusing when it is pointing to paths that don't exist on that computer.
How can I change this?
Forms Data Controls :: Way To Understand Data Grid Control
Jul 21, 2010When the data grid connects to a sqldatasource control and displays say 10 records with 5 pages from a total of 50 - has the application downloaded all 50 records or only the 10 on page 1? Is that why I use code to get the data and then implement paging myself or does the application know the 50 records are downloaded and when you click to the next page it works locally?
View 3 Replies