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• Where to maintain common information, that could be accessed by all forms

  - by The King

  Hi All, This is my first winform app in .NET... I have made a couple of ASP.NET app... In this app, I have some common variables, like current user name, his selected process etc.. etc.. This should be made accessible from all forms in the app at any time... How could I do this... Is there any place like "Session" in ASP.NET here... Further How do coders generally pass information from one form to another... Here I want to pass on the info I acquired in the first form to the subsequent forms... I use constructor overloading and pass the values as parameters... I'm pretty sure there has to be a better way to do it... Thanks for your time...

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• Write permission for a specific folder in web.config

  - by Simon Dugré

  My question is preaty simple. Is there any way to give current user (IIS User, in this case, ASP NET USER) permission to write to a specific folder location (folder inside our web application) using web.config? Because, it's getting boring to ask to the web hoster to gain access to a specific folder each time we want to do a file uploader on a website. I know it's maybe preaty simple to find an answer using google, but it keeps returning me how to write INTO web.config instead of permission to write into web.config FOR a specific folder. In addition, I'm french so my english is not at the top.

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• In Winform I need ASP.NET like membership and roles stuff. But Roles doesn't work

  - by user512602

  Hi, following http://www.theproblemsolver.nl/usingthemembershipproviderinwinforms.htm I set up the membership & roles providers in app.config and try use it in code. Authentication works well, bur roles always returns empty roles array for connected user. This part works: If Membership.ValidateUser(userName, password) Then ' Set the current application principal information to a known user Dim identity As GenericIdentity Dim principal As RolePrincipal Dim user As MembershipUser user = Membership.GetUser(userName) identity = New GenericIdentity(user.UserName) principal = New RolePrincipal(identity) Threading.Thread.CurrentPrincipal = principal This one doesn't: If principal.IsInRole("Club") Then LoggedInUserRole = "Club" Return True Exit Function End If No error is thrown though. Similarly, if I try to add a user to a known, existing role, an exception is thrown : If Not Roles.IsUserInRole(userName, "club") Then Roles.AddUserToRole(userName, "club") End If Exception msg is: Cannot find role '' (I mean the role name isn't given back in exception.) Any clue? Please do not tell me to use Windows Client Administration within project services, I need my own SQL DB connection + the client app services is a bloated dfeature, bug prone.

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• How do I get element's className inside loop of elements?

  - by crosenblum

  I am doing a loop of all elements inside a div, and I now need to get the classname of the element that I am looping by. Then i can check if the current element's class is one, I need to do something with... // var children = parent.childNodes, child; var parentNode = divid; // start loop thru child nodes for(var node=parentNode.firstChild;node!=null;node=node.nextSibling){ var myclass = (node.className ? node.className.baseVal : node.getAttribute('class')); } But this code for getting the classname only get's null values. Any suggestions?

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• Load balancing a php program to support increasing users?

  - by Dave

  I have a php program that has been written keeping in mind a single server, so there are inherent limitation to how much it can handle. For example, the developer says that his current webhosting service provides him with "50 mysql connections" which he interprets as that only 50 people can be simultaneously logged onto it. What do we need to do if we want to scale it up so it can handle a load of 500 or more? How can we adapt this program to a "load balancer" with minimal changes? The application is writen in php and uses mysql.

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• Saving WPF WIndow and Position

  - by moogs

  What would be the best way to save the window position and size in a WPF app? Currently, I'm saving the window size and position of a WPF App. Here are the events I handle: SourceInitialized : The saved info is loaded on to the window WindowClosing : The current info is saved to the backing store (I copied this from an example). The problem is, when the window is minimized and restored, the settings from the last WindowClosing is retrieved. Now, the StateChanged event fire AFTER the window has minimized, so it does not seem to be what i need. Thanks

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• How do you get "in the zone"?

  - by Wayne Werner

  Hi, I've just started my first real programming job and am pleased to discover that this is exactly what I want to do for the rest of my life. When it comes round to ~1 hour before it's time to go home and I think "Man, do I have to go home already?" I'd say that's A Good Thing(tm). One thing I've discovered though is that it takes a little while for my brain to get "in gear" or "in the Zone", so I'm curious what other folks do to get programming at their prime. My current flow is when I get here I visit SO and look at the interesting problems - I find it helps get my brain moving. After 20-30 minutes I start looking at my code/specs/etc to decide what I want/need to work on first. So how do you get started?

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• Trigger local program execution from browser

  - by DroidIn.net

  First and foremost: I know it's not right or even good thing to do but my current customer will not cave in. So here's what he is asking for (this is for in-house-behind-a-firewall-etc project). In the web report I need to supply a link which points to the executable script that lives on the universally mapped location (network file server). When user clicks on it it is expected to run on the local client starting local executable which should be pre-installed on the client's box. It should be agnostic to OS (Windows or Linux) and the browser used. Customer doesn't mind to click on angry pop-up alerts but he wants to do it once per client browser (or at minimum - session). QUESTION: Will trusted Java applet be able to do it? Or is the any other (better, simpler) ways of achieving the same? ActiveX control is out of question

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• Is it possible to block a page from opening using securityTrimmingEnabled=true

  - by abatishchev

  I have custom SiteMapProvider and RoleProvider that works together properly: IsAccessibleToUser returns false if current user's role isn't mentioned in SiteMapNode.Roles for page requested. So breadcrumbs or menu doesn't show an item. But user still can type now showed URL directly and open a page. How can I block such behavior? Also I have next Web.config settings: <authorization> <allow roles="Admin,Manager,Client" /> <deny users="*" /> </authorization>

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• Call function in query in Entity framework 3.5

  - by Ashwani K

  Hello All: I am trying to run following query in entity framework 3.5 var test = from e in customers where IsValid(e) select e; Here IsValid function takes current customer and validate against some conditions and returns false or true. But when I am trying to run the query it is giving error "LINQ Method cannot be translated into a store expression." Can any body tell me any other approach? One approach I can think of is to write all validation conditions here, but that will make the code difficult to read. Thanks Ashwani

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• url to http request object

  - by takeshin

  I need to convert string like this: $url = 'module/controller/action/param1/param1value/paramX/paramXvalue'; to url regarding current router (including translation and so on). Usually I generate the target urls using url view helper, but for this I need to specify all params, so I would need to manually explode the string. I tried to use request object, like this: $request = new Zend_Controller_Request_Http(); // some code here passing the $url Zend_Debug::dump($request->getControllerName()); // null instead of 'controllers' Zend_Debug::dump($request->getParams()); // null instead of array but this seems to be suspected. Do I need to dispatch this request? How to handle this case well?

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• .htaccess rewrite subdomains

  - by Cyclone

  Here is my current code: RewriteCond %{HTTP_HOST} !^example\.com [NC] #RewriteCond %{REQUEST_URI}!^something RewriteCond %{HTTP_HOST} ^([^.]+)\.example\.com RewriteRule (.*) something/%1/$1 [QSA,L] My goal is to rewrite http://*.example.com/whatever to http://example.com/something/*/whatever, assuming * is the same for both and whatever is the same for both. However, I believe this is causing an infinite loop somehow, so I added that commented out line (RewriteBase is / btw), but if I uncomment then the entire site is a 500 response code. Without that line, only the subdomains error. What am I doing wrong, and how can I fix this? I have already configured the server so anything gets redirected to my public_html folder. EDIT: For clarification, I am trying to do an internal redirect, not external. EDIT: There is not a flag for internal redirect it seems. Is there any place I can see the actual error message for the broken rewriterule? If I knew what was wrong I would be able to stand a better chance of fixing it.

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• Functional languages & support for memoization

  - by Joel

  Do any of the current crop of popular functional languages have good support for memoization & if I was to pick one on the strength of its memoisation which would you recommend & why? Update: I'm looking to optimise a directed graph (where nodes could be functions or data). When a node in the graph is updated I would like the values of other nodes to be recalculated only if they depend the node that changed. Update2: require free or open-source language/runtime.

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• jquery clickling fast

  - by Johansrk

  Hi. I have this function, that adds 31px to my style bottom on ul. It works fine, but if I click fast, it no longer adds 31px, but some weird number like 17.423px. I guess it's because the animation isn't done, and thereby by clicking fast it adds 31px to the current px amount. My thought is that I need to insert a stop(). But where? Thanks $(function () { $('.topTenTwocolumns .topTenTwocolumnsWrap .down').click(function () { if ($("ul").css("bottom") !== '2728px') { $(this).parents('.topTenTwocolumnsWrap').children('ul').stop().animate({ bottom: '+=31' }, 200); } }); });

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• Considering getting into reverse engineering/disassembly

  - by Zombies

  Assuming a decent understanding of assembly on common CPU architectures (eg: x86), how can one explore a potential path (career, fun and profit, etc) into the field of reverse engineering? There is so little educational guides out there so it is difficult to understand what potential uses this has today (eg: is searching for buffer overflow exploits still common, or do stack monitoring programs make this obselete?). I am not looking for any step by step program, just some relevant information such as tips on how to efficiently find a specific area of a program. Basic things in the trade. As well as what it is currently being used for today. So to recap, what current uses does reverse engineering yield today? And how can one find some basic information on how to learn the trade (again it doesn't have to be step-by-step, just anything which can through a clue would be helpful).

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• HTA value update freezes when file copy starts

  - by Matt Hamende

  Creating an HTA that will automate the installation of several applications it starts by checking for the existence of certain files then copies a large folder to local from a flash drive if it doesn't exist, I have a textbox I'm using to update the current status of the script, but it just seems to freeze and never updates, I haven't had any luck with any of the artificial sleep functions either. here's the segment If Not objFSO.FileExists(Office10Dir) Then MsgBox("Excel is missing") BasicTextBox.Value = "Office14 Not Detected, Copying Source Files to Local" Dim objFS, objFolder Dim OfficeTemp OfficeTemp = "C:\OfficeTemp" Set objFS = CreateObject("Scripting.FileSystemObject") Set objFolder = objFS.CreateFolder(OfficeTemp) objFS.CopyFolder "OfficeTemp", "C:\OfficeTemp" BasicTextBox.Value = "Local Temp Directory Created" ELSE MsgBox("Excel is Installed") END IF All i see is the "Local Temp Directory Created" message once file copy is complete

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• Firefox why window.opener is defined even for a new tab

  - by jonny

  Hi! I am porting quite old corp application from IE to Firefox. Here is my situation. User goes away from computer for a while and his session becomes expired. When user tries to access something in popup, he is being redirected to login page (in popup window). In login page onload event popup window chain is being closed and root page refreshed (in root page tab user is redirected to login page). The guy before me wrote this like this: if window.top.opener is undefined, we're not in popup. That's why I am getting non-stoppable refresh in Firefox. Why in Firefox window.opener is still defined and points to same window, even if this is a new tab, not popup? How should I correctly determine that current window is popup?

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• Would I really want to return the minimum date?

  - by Clay Shannon

  An old work colleague used to quote his father about tools, "You have to be smarter than it." In the code below, Resharper is telling me, "Value assigned is not used in any execution path" (pointing to the first line). If I accept its offer of help, dt is not assigned a value ("today"). Is this a case where "I have to be smarter than it" and ignore their warning, or is this a case where the tool is smarter than me, and I'm just not understanding it? My take on the situation is that if the if statement fails, the current date is returned (the default value I want), but if I acquiesce to Resharper's "demands" it would return the default value for Datetime, which is the minimum date, which I assume is something like 7/4/1776 or 1/1/0000 or so. DateTime dt = DateTime.Now; if (!(DateTime.TryParse(substr, out dt))) { using (var dtpDlgForm = new ReturnDate("Please select the Date that the file was created:")) { if (dtpDlgForm.ShowDialog() == DialogResult.OK) { dt = dtpDlgForm.ReturnVal; } } } return dt;

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• Auto save changed text in richtextbox to database

  - by user2519407

  I have created one simple note taking application in jquery & php. Current functionality is like when user clicks save button it sends a ajax request with complete data to update it in db(mysql). All works well. But now I want to auto save only changed text while user typing. I don't want to send entire text to server again and again in text change event. It should send only text which has changed. For Ex: This is saved text. When user continues typing. This is saved text. Unsaved text.. It should be able to send only "Unsaved text.." to server to update in db. How can i implement this in jquery & server side script.? Any Idea..?

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• Wanna use StructureMap to store HttpContext/User based explicit instances

  - by René

  Hi I'm having difficulty figuring out how to store an explicitly user generated instance in StructureMap, cached by HttpContext. When I try the code underneath, I even get the first cached instance, which leads to failures when using it for storing user credentials in Asp.Net AuthenticateRequest method. ForRequestedType<TInterface>() .CacheBy(InstanceScope.HttpContext) .TheDefault. Is. Object(instance)); The problem is I can't create a new instance on requesting StructureMap, because I need more other factories for getting rights etc. for the current user. Any ideas?

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• Detach many subdirectories into a new, separate Git repository

  - by prisonerjohn

  This question is based on http://stackoverflow.com/questions/359424/detach-subdirectory-into-separate-git-repository Instead of detaching a single subdirectory, I want to detach a couple. For example, my current directory tree looks like this: /apps /AAA /BBB /CCC /libs /XXX /YYY /ZZZ And I would like this instead: /apps /AAA /libs /XXX The --subdirectory-filter argument to git filter-branch won't work because it gets rid of everything except for the given directory the first time it's run. I thought using the --index-filter argument for all unwanted files would work (albeit tedious), but if I try running it more than once, I get the following message: Cannot create a new backup. A previous backup already exists in refs/original/ Force overwriting the backup with -f Any ideas? TIA

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• GPU Computing - # of GPUs supported

  - by TehTypoKing

  I currently have a desktop with 6 GPUs ( 3x HD 5970s ) in non-crossfire mode. Unfortunately, it seems that Windows 7 64bit only supports up to 4 GPUs. I have not been able to find a reliable source to deny or confirm this. If windows 7 has this limitation, is there a Linux flavor that supports more than 4 GPUs? In-case you are wondering, this is not for gaming but high-speed single precision computing. With this current setup ( if I can find 6gpu support ) I am looking to reach 13.8 Teraflops. Also, my motherboard does support 3 16x pci-xpress gen2 slots... and I have a 1500w powersupply plugged into a 20amp outlet. Windows is able to detect all 6 cores.. although, 2 of which displays the warning "Drivers failed to load". To recap: - Can windows support 6 GPUs? - If not, does Linux? Thank you.

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• How would you parse the location text from Twitter to get the latitude/longitude in Objective-C?

  - by Brennan

  The location text from Twitter could be just about anything. Sometimes Twitter clients set the location with the user's latitude and longitude in the following format. "\U00dcT: 43.05948,-87.908409" Since there is no built-in support for Regular Expressions in Objective-C I am considering using the NSString functions like rangeOfString to pull the float values out of this string. For my current purpose I know the values with start with 43 and 87 so I can key off those values this time but I would prefer to do better than that. What would you do to parse the latitude/longitude from this string?

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• How can I utilize or mimic Application OnStart in an HttpModule?

  - by Sailing Judo

  We are trying to remove the global.asax from our many web applications in favor of HttpModules that are in a common code base. This works really well for many application events such as BeginRequest and PostAuthentication, but there is no Application Start event exposed in the HttpModule. I can think of a couple of smelly ways to overcome this deficit. For example, I can probably do this: protected virtual void BeginRequest(object sender, EventArgs e) { Log.Debug("Entered BeginRequest..."); var app = HttpContext.Current.Application; var hasBeenSet app["HasBeenExecuted"] == null ? false : true; if(!hasBeenSet) { app.Lock(); // ... do app level code app.Add("HasBeenSet", true); app.Unlock(); } // do regular begin request stuff ... } But this just doesn't smell well to me. What is the best way to invoke some application begin logic without having a global.asax?

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• Visual Studio 2008 profiler analysis - missing time

  - by Scott Vercuski

  I ran the Visual Studio 2008 profiler against my ASP.NET application and came up with the following result set. CURRENT FUNCTION TIME (msec) ---------------------------------------------------|-------------- Data.GetItem(params) | 10,158.12 ---------------------------------------------------|-------------- Functions that were called by Data.GetItem(params) TIME (msec) ---------------------------------------------------|-------------- Model.GetSubItem(params) | 0.83 Model.GetSubItem2(params) | 0.77 Model.GetSubItem3(params) | 0.76 etc. The issue I'm facing is that the sum of the Functions called by Data.GetItem(params) do not sum up to the 10,158.12 msec total. This would lead me to believe that the bulk of the time is actually spent executing the code within that method. My question is ... does Visual Studio provide a way to analyze the method itself so I can see which sections of code are taking the longest? if it does not are there any recommended tools to do this? or should I start writing my own timing scripts? Thank you

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