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  • Delphi Client-Server Application using Firebird 2.5 error

    - by Japie Bosman
    I have got a lengthy question to ask. First of all Im still very new when it comes to Delphi programming and my experience has beem mostly developing small single user database applications using ADO and an Access database. I need to take the transition now to a client server application and this is where the problem starts. I decided to use Firebird 2.5 embeded as my database, as it is open source, and it is can be used with the interbase components in Delphi and that multiple clients can access the database simultanously. So I followed the interbase tutorial in Delphi. I managed to connect the client to the server and see the data in the example (While both are running on my pc), but when i tried to move the client to another pc, keeping the server on mine and running it to see if I can connect to the server it gave me the following error. Exception EIdSocketError in module clientDemo.exe at 0029DCAC. Socket Error # 10061 Connection refused. I understand that this might be because the host is defined as localhost in the client. But here is my first question. In the TSQLConncetion you can set die hostname under Driver-Hostname. The thing I want to know is how do you do this at run time, as I cannot get the property when I try and make an edit box to allow the user to enter the value and then set it via code like for example: SQLConncetion1.Driver.Hostname := edtHost.text; The thing is there is not such property to set, so how do you set the hostname at run time? Im using Delphi XE2 There is still a lot of questions to come especially when it comes to deployment, but I will take this piece by piece and I appreciate the advice.

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  • PHP/MySQL Database application development tool

    - by RCH
    I am an amateur PHP coder, and have built a couple of dozen projects from scratch (including fairly simple e-commerce systems with user authentication, PayPal integration etc - all coded by hand from a clean page. Have also done a price comparison engine that takes data from multiple sites etc.). But I am no expert with OO and other such advanced techniques - I just have a fairly decent grasp of the basics of data processing, logic, functions and trying to optimize code as much as possible. I just want to make this clear so you have some idea of where I'm coming from. I have a couple of fairly large new projects on my plate for corporate clients - both require bespoke database-driven applications with complex relationships, many tables and lots of different front-end functions to manipulate that data for the internal staff in these companies. I figured building these systems from scratch would probably be a huge waste of time. Instead, there must be tools out there that will allow me to construct MySQL databases and build the pages with things like pagination, action buttons, table construction etc. Some kind of database abstraction layer, or system generator, if you will. What tool do you recommend for such a purpose for someone at my level? Open source would be great, but I don't mind paying for something decent as well. Thanks for any advice.

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  • Client-server application design issue

    - by user2547823
    I have a collection of clients on server's side. And there are some objects that need to work with that collection - adding and removing clients, sending message to them, updating connection settings and so on. They should perform these actions simultaneously, so mutex or another synchronization primitive is required. I want to share one instance of collection between these objects, but all of them require access to private fields of collection. I hope that code sample makes it more clear[C++]: class Collection { std::vector< Client* > clients; Mutex mLock; ... } class ClientNotifier { void sendMessage() { mLock.lock(); // loop over clients and send message to each of them } } class ConnectionSettingsUpdater { void changeSettings( const std::string& name ) { mLock.lock(); // if client with this name is inside collection, change its settings } } As you can see, all these classes require direct access to Collection's private fields. Can you give me an advice about how to implement such behaviour correctly, i.e. keeping Collection's interface simple without it knowing about its users?

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  • IIS permission configuration issue

    - by Dan
    Sorry the title of this question is a little ambiguous but I don't really have any idea where the issue lies - I'm seeking some clarification of the server error logs. Basically, I had a dedicated server running Windows 2003 and Plesk (v8 I think). Last week the server hardware failed and the entire thing had to be rebuilt from scratch. New hardware was put in, new operating system (Win2008), new Plesk installation (v9.5), new software (MSSQL etc) then all data ported over manually from old C and D drives to restore all 30 client sites. It was hell! All has been okay for a couple of days now but about an hour ago POP! Suddenly all sites went down giving a 500 error. Restarting all services eventually brought everything back online, but I'm now living in total fear. It can - and probably will - happen again. The guys on support gave me the following errors from the server log: The Template Persistent Cache initialization failed for Application Pool 'ASP.NET v4.0 Classic' because of the following error: Could not create a Disk Cache Sub-directory for the Application Pool. The data may have additional error codes.. The worker process for application pool 'domain1.com(domain)(2.0)(pool)' encountered an error 'Cannot read configuration file ' trying to read configuration data from file '\\?\C:\inetpub\temp\apppools\domain1.com(domain)(2.0)(pool).config', line number '0'. The data field contains the error code. The worker process for application pool 'PleskControlPanel' encountered an error 'Cannot read configuration file ' trying to read configuration data from file '\\?\C:\inetpub\temp\apppools\PleskControlPanel.config', line number '0'. The data field contains the error code. The support guys are so ambiguous about this and it scares me horribly. Can anyone positively identify the cause of this error which lead to all client website going offline? What can be done to prevent it from happening again? Any pointers would be very much appreciated! Thanks folks...

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  • How to Log Into a Web App Simultaneously with Different Account?

    - by Ngu Soon Hui
    I want to log into a web application, using at least ten account names at one single point of time ( I am not trying to do anything illegal, so don't worry). AFAIK, each tab in Chrome will share the same session, therefore, for one machine, one can use Google Chrome to log in at most 2 accounts, one in normal mode, another in Incognito mode. Is there anyway I can log into multiple accounts? I know I can open up IE and Firefox ( probably Safari etc) and login, but this is not really scalable as the number of web browsers is finite. Edit: My application is a localhost application; it resides on my computer. So proxy may not be that useful, and you now probably understand why it's nothing illegal. Edit2: CookieSwap seems like a good idea, but the problem is that once I swap the cookie, all the tabs and the FF apps' cookie are swap as well. Can the swapping be done on a tab basis or on application basis, so that on a dual-monitor, I can see the different login side-by-side?

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  • treeview loses data when page is being refreshed in asp.net

    - by Greg
    Hi, I have a treeview and I written a code for his "treeNodePopulate" event: protected void ycActiveTree_TreeNodePopulate(object sender, TreeNodeEventArgs e) { if (Application["idList"] != null && e.Node.Depth == 0) { string[] words = ((String)Application["idList"]).Split(' '); // Yellow Card details TreeNode child = new TreeNode(""); // Go over all the yellow card details and populate the treeview for (int i = 1; i < words.Length; i++) { child.SelectAction = TreeNodeSelectAction.None; // Same yellow card if (words[i] != "*") { // End of details and start of point ip's if (words[i] == "$") { // Add the yellow card node TreeNode yellowCardNode = new TreeNode(child.Text); yellowCardNode.SelectAction = TreeNodeSelectAction.Expand; e.Node.ChildNodes.Add(yellowCardNode); child.Text = ""; } // yellow card details else { child.Text = child.Text + words[i] + " "; } } // End of yellow card else { child.PopulateOnDemand = false; child.SelectAction = TreeNodeSelectAction.None; // Populate the yellow card node e.Node.ChildNodes[e.Node.ChildNodes.Count - 1].ChildNodes.Add(child); TreeNode moveChild = new TreeNode("Move To Reviewed"); moveChild.PopulateOnDemand = false; moveChild.SelectAction = TreeNodeSelectAction.Select; e.Node.ChildNodes[e.Node.ChildNodes.Count - 1].ChildNodes.Add(moveChild); child = new TreeNode(""); } } Application["idList"] = null; } } I want the treenode to get the data from the Application variable and then nullify the Application variable so that the tree will take data from Applcation only if there is something in it (I put data into the application from another page and then redirect to this page) But when I refresh this page the data in the treenode isnt being saved. I mean after the refresh the Application is null so he isnt doing anything. The question is why is the data that I put in the treenode earlier isnt being saved? The "enableViewState" property is set to "true".. Thanks in advance, Greg

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  • Crystal Reports for VS deployment to Web Application doesn't work (3 replies)

    I've followed the &quot;documentation&quot; for getting crystal reports to work on a production web site. I've migrated a VS 2003 web project to a VS 2008 web application. Everything works fine on my dev box. publish the site out to the server (2003 X86) and no go on the reports, get the infamous: ***** Error Type: System.IO.FileLoadException ***** Error Message: Could not load file or assembly 'CrystalDeci...

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  • Installing device drivers as part of VS2008 setup application (3 replies)

    A colleague in another department has produced device drivers for some USB devices that I need to communicate with in my VS2008 .Net application, and I'm looking to simplify the installation experience for our users. Currently I just put the driver files onto the CD in a folder, and the Windows Add Hardware Wizard will usually take them through the process. What I would like to do though, is to in...

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  • OCFS2 Now Certified for E-Business Suite Release 12 Application Tiers

    - by sergio.leunissen
    Steven Chan writes that OCFS2 is now certified for use as a clustered filesystem for sharing files between all of your E-Business Suite application tier servers.  OCFS2 (Oracle Cluster File System 2) is a free, open source, general-purpose, extent-based clustered file system which Oracle developed and contributed to the Linux community.  It was accepted into Linux kernel 2.6.16.OCFS2 is included in Oracle Enterprise Linux (OEL) and supported under Unbreakable Linux support.

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  • How to test a localized WPF application in visual studio 2012

    - by Michel Keijzers
    I am trying to create a localized application in C# / WPF in Visual Studio 2012. For that I created two resource files and changed one string in a (XAML) window to use the resource files (instead of a hardcoded string). I see the English text from the resource file, which is correct. However, I want to check if the other resource file (fr-FR) also works but I cannot find a setting or procedure how to change my 'project' to run in French. Thanks in advance.

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  • Crystal Reports for VS deployment to Web Application doesn't work (3 replies)

    I've followed the &quot;documentation&quot; for getting crystal reports to work on a production web site. I've migrated a VS 2003 web project to a VS 2008 web application. Everything works fine on my dev box. publish the site out to the server (2003 X86) and no go on the reports, get the infamous: ***** Error Type: System.IO.FileLoadException ***** Error Message: Could not load file or assembly 'CrystalDeci...

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  • MSDN Webcast: Security Talk - Protecting Your Data from the Application to the Database

    Securing a database is a difficult task. Learn about areas that application developers and database administrators should consider to help increase data security. Hear about topics ranging from securing the network channel to using proper authentication to new authorization features introduced in Microsoft SQL Server 2005....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Have you worked with poorly designed application ?

    - by Vinoth Kumar
    Well , I have been asked to work in a Java web application that is very very poorly designed . In the name of "making this easy" , they have come up with their own "framework" to make things extremely difficult to understand . I am struggling to figure out the control flow . Do you have any such experience ? What do you do in such situations when the guy who has "designed" it has already left the company ?

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  • Building a better .NET Application Configuration Class - revisited

    - by Rick Strahl
    Managing configuration settings is an important part of successful applications. It should be easy to ensure that you can easily access and modify configuration values within your applications. If it's not - well things don't get parameterized as much as they should. In this post I discuss a custom Application Configuration class that makes it super easy to create reusable configuration objects in your applications using a code-first approach and the ability to persist configuration information into various types of configuration stores.

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  • [Windows 8] Application bar buttons symbols

    - by Benjamin Roux
    During the development of my current Windows 8 application, I wanted to add custom application bar buttons with symbols that were not available in the StandardStyle.xaml file created with the template project. First I tried to Bing some new symbols and I found this blog post by Tim Heuer with the list of all symbols available (supposedly) but the one I wanted was not there (a heart). In this blog post I’m going the show you how to retrieve all the symbols available without creating a custom path. First you have to start the “Character map” tool and select “Segoe UI Symbol” then go at the end of the grid to see all the symbols available. When you want one just select it and copy it’s code inside the content of your Button. In my case I wanted a heart and its code is “E0A5”, so my button (or style in this case) became <Style x:Key="LoveAppBarButtonStyle" TargetType="Button" BasedOn="{StaticResource AppBarButtonStyle}"> <Setter Property="AutomationProperties.AutomationId" Value="LoveAppBarButtonStyle"/> <Setter Property="AutomationProperties.Name" Value="Love"/> <Setter Property="Content" Value="&#xE0A5;"/> </Style> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Et voila. Hope this will help you (there is A LOT of symbols")!

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  • Unity Dash Application search results - some icons appear as blank page icons

    - by Stoney_Fish
    Ubuntu 14.04 64bit on Dell E6420 (Sandybridge graphics) Open Unity Dash search My filters are set only on "Applications" and "Files & Folders" I type : Software The results are good but some icons appear as blank page icons (document?) Example Applications : "Ubuntu Software Centre" and "Software & Updates" "Software Updater" has the correct application icon. (The blank page icon look like a blank page with the top right corner folded.)

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  • Installing device drivers as part of VS2008 setup application (3 replies)

    A colleague in another department has produced device drivers for some USB devices that I need to communicate with in my VS2008 .Net application, and I'm looking to simplify the installation experience for our users. Currently I just put the driver files onto the CD in a folder, and the Windows Add Hardware Wizard will usually take them through the process. What I would like to do though, is to in...

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  • PHP Web Application Development - The Value of Smart Planning in Development

    If you've outsourced web application development, or worked as a programmer or project leader of development team, you've definitely experienced the difficult strive towards meeting a deadline. Time always seems to be a constraint. The client may bring up changes which he or she feels should have been understood by the development team (sometimes rightfully and other times not) which further puts pressure on the team to deliver faster than what they may be able to. At least without proper planning that is.

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  • An access violation occurs when you run a Visual C++ application in Visual Studio 2005 SP1

    980422 ... An access violation occurs when you run a Visual C++ application in Visual Studio 2005 SP1This RSS feed provided by kbAlerz.com.Visit kbAlertz.com to subscribe. It's 100% free and you'll be able to recieve e-mail or RSS updates for the technologies you pick from the Microsoft Knowledge Base....Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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