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Search found 50319 results on 2013 pages for 'application pools'.

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  • Accessing Bluetooth virtual COM port on Windows without manual pairing

    - by oo_olo_oo
    I need to connect to a Bluetooth device through virtual COM port created in Windows. It's easy when the port has been already created during manual pairing procedure. But I would like my application to relieve an user from the manual pairing of a device. I would like to present all devices in the range, allow user to chose one, and then create virtual COM port connected with the selected device. I'm not trying to avoid the pairing procedure itself, but rather I would like to invoke it by my application. I started getting familiar with Microsoft Bluetooth API. And then some doubts arose. I've been wondering what happen if some user would use different (than Microsoft's) Bluetooth stack? Is the Microsoft's API the real Bluetooth API, which have to be implemented by any other Bluetooth stack provider? Or rather each provider has its own API, and the Microsoft's is only one of many other?

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  • Handling messages for window from other process

    - by MK
    I'm developing a C# WPF application that reparents the main window of another application using a call to Win32 SetParent(). The handle to this out-of-process child window is wrapped by a class named FormHost which is derived from HwndHost. All is working well except for one thing: messages for the reparented window are not delivered to FormHost. MSDN documentation clearly states that the HwndHost window procedure WndProc() cannot be used with out-of-process windows. The alternative, MessageHook doesn't work either. I also tried calling AttachThreadInput() to combine the input processing of the two windows. No luck. Any suggestions?

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  • Keystrokes in Winforms app causing window to close unexpectedly

    - by Paul Sasik
    I have a strange issue that has arisen recently: Whenever I enter text, even a single character, into a textbox in any Form in my application it causes the form and its parent to close. I've checked for the following so far: Errant/mis-assigned event handlers that may be interpreting a keystroke as a Form cancel I am using keypreview in several windows but debugging shows this to not be a cause Happens in any form of the application Happens even with brand new text boxes dropped on the form Tried removing the WithEvents declaration from text box declarations (VB.NET) The result is DialogResult.Cancel when I break the code after Show or ShowDialog The forms do not use AcceptButton or CancelButton properties (set to none) Note: I am modifying a large codebase with a lot of code that I have yet to touch What else could be causing this strange behavior?

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  • Websphere MQ using JMS, closed connections stuck on the MQ

    - by Ahmad
    I have a simple JMS application deployed on OC4J under AIX server, in my application I'm listening to some queues and sending to other queues on a Websphere MQ deployed under AS400 server. The problem is that my connections to these queues are terminated/closed when it stays idle for some time with the error MQJMS1016 (this is not the problem), and when that happens I attempt to recover the connection and it works, however, the old connection is stuck at the MQ and would not terminate until it is terminated manually. The recovery code goes as follows: public void recover() { cleanup(); init(); } public void cleanup(){ if (session != null) { try { session .close(); } catch (JMSException e) { } } if (connection != null) { try { connection.close(); } catch (JMSException e) { } } } public void init(){ // typical initialization of the connection, session and queue... }

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  • Is it possible to have AVFramework and AudioToolbox framework in one app?

    - by Satyam
    I'm trying to write develop audio related application. In that, I'm using AudioToolBox framework for recording the sound. And I'm using AVFramework to play soudns. When app is stared, it will play some mp3 file using AVFramework. And also initializes Audiotoolbox. In simulator, I'm able to record and play. But when I'm testing it on iPhone, I'm getting following error for initializing AudioToolBox. 2009-12-11 22:25:51.599 StoryBook[807:207] AudioRecorder init AudioSessionInitialize failed with error: 1768843636 Can some one tell me whether we can use both AV as well as Audio Toolbox frame works in one application? Why I'm getting that error?

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  • Digital Signature Device Recommendations (Mini Tablet)

    - by blu
    I'd like to capture signatures of application users with a mini-tablet/little pos signature device. I welcome any first hand experiences of which ones were good and which ones to stay away from. Off the top of my head I can think of a few features I'd like to see: USB interface Not too expensive (I don't know 100-200 dollars?) Be easy to integrate with a managed .NET application Also I realize most people, myself included, think of digitally signing assemblies with code instead of a mini-tablet device, if there is a more accurate phrase for this pleas let me know. Thanks for any input.

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  • Automatically call httpservice.send

    - by Matt Robinson
    I have an application that displays the data from 3 xml files (auto generated from SQL table) using httpservices to get them. The first xml file is small and contains around 30 items, the second and thrid contain around 200-300 items each. The first dataset loads quickly and is invoked on creationComplete. The second and third are called from click events and take quite a few seconds to load. A user of the application will take at least 2-3 minutes reading the data from the first dataset so is there a way I can have the httpservice.send for the second and third xml files called automatically, straight after the first file has finished loading to be able to show the first dataset immediateley and get rid of the waiting times between dataset views. An answer doesnt need to be specific, just a point in the right direction would be great. All answers greatly appreciated Matt

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  • AppleScript to open URL in Safari crashes for Flash-based websites

    - by Mark
    I'm trying to open a URL in Safari. It works fine for websites without Flash embedded, but crashes Safari for Flash sites. Example (this WORKS): tell application "Safari" to open location "http://google.com" This CRASHES when Safari is not already running: tell application "Safari" to open location "http://grooveshark.com" Two things I noticed: Safari only crashes for websites with embedded Flash The script above only crashes if a new instance of Safari is created (i.e. Safari was not running before) From the second observation I assume that it could be a permission issue of some sort. Maybe the Safari instance launched from the AppleScript has a problem loading plugins?

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  • Best Practices for working with files via c#

    - by user177883
    Application I work on generates several hundreds of files in a 15 minutes period of times. and the back end of the application takes these files and process them (updates database with those values). One problem is database locks. What are the best practices on working with several thousands of files to avoid locking and efficiently processing these files? Would it be more efficient to create a single file and process it? or process single file at a time? What are so common best practices?

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  • SP Gridview link button column not working

    - by Dilse Naaz
    Hi I have one sharepoint custom page application which is rendering from a user control. In the user control page, i had used SPGridview for displaying data. My first column is Title Column (link button column), when the user click on the link, then one popup window will open with corresponding data. But the problem is the link button is not working properly. But this application is working as fine in asp.net application. My code is shown below.. <asp:UpdatePanel runat="server" ID="UpdatePanel2"> <ContentTemplate> <SharePoint:SPGridView ID="dgApplicationBox" CellPadding="0" Height="100%" runat="server" ForeColor="Black" Font-Size="10px" Font-Names="Verdana" AutoGenerateColumns="False" AllowPaging="True" Width="100%" BorderStyle="None" BorderWidth="0px" PageSize="10" BorderColor="White" BackColor="White" OnRowDataBound="dgApplicationBox_RowDataBound" DataKeyNames="ApplicationID" OnSelectedIndexChanged="dgApplicationBox_SelectedIndexChanged" OnPageIndexChanging="dgApplicationBox_PageIndexChanging" CssClass="ms-listviewtable" AlternatingRowStyle-CssClass="ms-alternating"> <SelectedRowStyle Font-Bold="True" ForeColor="Black" BackColor="#CE5D5A"></SelectedRowStyle> <EditRowStyle Font-Size="10px" Font-Names="Verdana,Arial,Helvetica,sans-serif"></EditRowStyle> <HeaderStyle Font-Size="11px" Height="20px" Font-Bold="True" ForeColor="Black" BackColor="#E7E8EC"> </HeaderStyle> <PagerStyle HorizontalAlign="Center" ForeColor="#414E61" Font-Size="5px" Font-Names="arial" Height="10px" BackColor="#EBF3FF"></PagerStyle> <RowStyle /> <Columns> <asp:TemplateField HeaderText="Title" HeaderStyle-CssClass="ms-vb"> <ItemTemplate> <asp:LinkButton ID="lbtnSubject" Text='<%# Bind("UDF5") %>' runat="server" OnClick="lbtnSubject_Click"></asp:LinkButton> </ItemTemplate> <HeaderStyle HorizontalAlign="Left" CssClass="ms-vh2" Font-Bold="true" /> <ItemStyle HorizontalAlign="Left" CssClass="ms-vb2" /> </asp:TemplateField> <asp:TemplateField HeaderText="Request No."> <ItemTemplate> <asp:Label ID="lblReqNo" Text='<%# Bind("UDF1") %>' runat="server" /> </ItemTemplate> <HeaderStyle HorizontalAlign="Left" CssClass="ms-vh2" Font-Bold="true" /> <ItemStyle HorizontalAlign="Left" CssClass="ms-vb2" /> </asp:TemplateField> <asp:BoundField DataField="CreatedOn" HeaderText="Created On" DataFormatString="{0:MM/dd/yyyy}" HeaderStyle-HorizontalAlign="Left" ItemStyle-HorizontalAlign="Left"> <HeaderStyle CssClass="ms-vh2" Font-Bold="true"></HeaderStyle> <ItemStyle CssClass="ms-vb2"></ItemStyle> </asp:BoundField> <asp:BoundField DataField="Name" HeaderText="Form Type" HeaderStyle-HorizontalAlign="Left" ItemStyle-HorizontalAlign="Left"> <HeaderStyle CssClass="ms-vh2" Font-Bold="true"></HeaderStyle> <ItemStyle CssClass="ms-vb2"></ItemStyle> </asp:BoundField> <asp:TemplateField HeaderText="History"> <HeaderStyle CssClass="ms-vh2" Font-Bold="true"></HeaderStyle> <ItemStyle HorizontalAlign="Center" VerticalAlign="Middle" Width="21px" CssClass="ms-vb2"> </ItemStyle> <ItemTemplate> <asp:LinkButton ID="lbtnView" runat="server" OnClick="lbtnView_Click" >View</asp:LinkButton> </ItemTemplate> </asp:TemplateField> <asp:TemplateField HeaderText="Application Id" Visible="False"> <ItemTemplate> <asp:Label ID="lblApplicationId" runat="server" Text='<%# Bind("ApplicationId") %>'></asp:Label> </ItemTemplate> <HeaderStyle HorizontalAlign="Left" CssClass="ms-vh2" Font-Bold="true" /> <ItemStyle HorizontalAlign="Left" CssClass="ms-vb2" /> </asp:TemplateField> </Columns> </SharePoint:SPGridView> </ContentTemplate> </asp:UpdatePanel> when the user click on the link button, this code will works.. try { clearSession(); Session["DigitalSignature"] = null; Button btnDetails = sender as Button; DataTable dt = (DataTable)dgApplicationBox.DataSource; GridViewRow gvRow = (GridViewRow)(sender as LinkButton).Parent.Parent; Session["AppId"] = ((Label)gvRow.FindControl("lblApplicationId")).Text; string subject = ((LinkButton)gvRow.FindControl("lbtnSubject")).Text; WFInfo objWFInfo = new WFInfo(); objWFInfo.InitWorkflowProperty(Convert.ToInt32(Session["AppId"].ToString()), Session["CurrentUser"].ToString()); Session["FormId"] = objWFInfo.FormID.ToString(); string strFilname = objWFInfo.GetFormName(objWFInfo.ApplicationCategoryID.ToString()); string WindowName = strFilname; strFilname += ".aspx"; Session["CategoryId"] = objWFInfo.ApplicationCategoryID.ToString(); //pnlSubmitModal_ModalPopupExtender.Show(); ScriptManager.RegisterStartupScript(this, this.GetType(), "starScript", "popUpWindow('" + strFilname + "?tittle=" + subject + "', 800, 690,'" + WindowName + "');", true); this.Controls.Add(new LiteralControl("<script>alert('hi');</script>")); if (Session["CurrentUser"] != null) { ApplicationForm objApplication = new ApplicationForm(); objApplication.markRead(Convert.ToInt32(Session["AppId"].ToString()), Session["CurrentUser"].ToString()); } bindFolderData(); } If i click on the link button, there will be only post back occuring. but not the popup window open.. Please help me for resolving this problem. thanks in advance..

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  • Yii include PHP Excel

    - by Anton Sementsov
    Im trying include PHPExcel lib to Yii, put PHPExcel.php in root of extensions, near PHPExcel folder and added that code into config/main.php // application components 'components'=>array( 'excel'=>array( 'class'=>'application.extensions.PHPExcel', ), modify /protected/extensions/PHPExcel/Autoloader.php public static function Register() { $functions = spl_autoload_functions(); foreach($functions as $function) spl_autoload_unregister($function); $functions=array_merge(array(array('PHPExcel_Autoloader', 'Load')), $functions); foreach($functions as $function) $x = spl_autoload_register($function); return $x; }// function Register() Then, trying create PHPExcel object $objPHPExcel = new PHPExcel(); but have an error: include(PHPExcel.php) [<a href='function.include'>function.include</a>]: failed to open stream: No such file or directory in Z:\home\yii.local\www\framework\YiiBase.php(418)

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  • Having two ODP.NET (ODAC) versions in the same server

    - by vizcaynot
    Hello: Some months ago, a colleague of mine installed ODAC 11.106.21 in a server using XCOPY and then he developed many applications that use this client without problems (in test and production windows servers). Past week, I developed an application under ODAC 11.1.07.20. When I asked him to install these new ODAC version using XCOPY in a different folder and then include my application in the test server, he answered me that I should use ODAC 11.106.21 because he could have troubles with his applications. So I would like to know: 1) If it is really possible to have two different ODAC versions in one server. 2) If the answer is positive, how can I firmly ensure to my colleague that he will not have troubles with his applications? 3) If the answer is positive, is this necessary to do some kind of configuration in the server? Thanks!!

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  • Design pattern for parsing data that will be grouped to two different ways and flipped

    - by lewisblackfan
    I'm looking for an easily maintainable and extendable design model for a script to parse an excel workbook into two separate workbooks after pulling data from other locations like the command line, and a database. The high level details are as follows. I need to parse an excel workbook containing a sheet that lists unique question names, the only reliable information that can be parsed from the question name is the book code that identifies the title and edition of the textbook the question is associated with, the rest of the question name is not standardized well enough to be reliably parsed by computer. The general form of the question name is best described by the following regular expression. '^(\w+)\s(\w{1,2})\.(\w{1,2})\.(\w{1,3})\.(\w{1,3}\.)*$' The first sub-pattern is the book code, the second sub-pattern is 90% of the time the chapter, and the rest of the sub-patterns could be section, problem type, problem number, or question type information. There is no simple logic, at least not one I can find. There will be a minimum of three other columns in this spreadsheet; one column will be the chapter the question is associated with, the second will be the section within the chapter the question is associated with, and the third will be some kind of asset indicated by a uniform resource locator. 1 | 1 | qname1 | url | description | url | description ... 1 | 1 | qname2 | url | description 1 | 1 | qname3 | url | description | url | description | url | The asset can be indicated by a full or partial uniform resource locator, the partial url will need to be completed before it can be fed into the application. There theoretically could be no limit to the number of asset columns, the assets will be grouped in columns by type. Some times additional data will have to be retrieved from a database or combined with the book code before the asset url is complete and can be understood by the application that will be using the asset. The type is an abstraction, there are eight types right now, each with their own logic in how the uniform resource locator is handled and or completed, and I have to add a new type and its logic every three or four months. For each asset url there is the possibility of a description column, a character string for display in the application, but not always. (I've already worked out validating the description text, and squashing MSs obscure code page down to something 7-bit ascii can handle.) Now that all the details are filled-in I can get to the actual problem of parsing the file. I need to split the information in this excel workbook into two separate workbooks. The first workbook will group all the questions by section in rows. With the first cell being the section doublet and the rest of the cells in the row are the question names. 1.1 | qname1 | qname2 | qname3 | qname4 | 1.2 | qname1 | qname2 | qname3 | 1.3 | qname1 | qname2 | qname3 | qname4 | qname5 There is no set number of questions for each section as you can see from the above example. The second workbook is more complicated, there is one row per asset, and question names that have more than one asset will be duplicated. There will be four or five columns on this sheet. The first is the question name for the asset, the second is a media type used to select the correct icon for the asset in the application, the third is string representing the asset type, the four is the full and complete uniform resource locator for the asset, and the fifth columns is the optional text description for the asset. q1 | mtype1 | atype1 | url | description q1 | mtype2 | atype2 | url | description q1 | mtype2 | atype3 | url | description q2 | mtype1 | atype1 | url | description q2 | mtype2 | atype3 | url | description For the original six types I did have a script that parsed the source excel workbook into the other two excel workbooks, and I was able to add two more types until I ran aground on the implementation of the ninth type and tenth types. What broke my script was the fact that the ninth type is actually a sub-type of one of the original six, but with entirely different logic, and my mostly procedural script could not accommodate without duplicating a lot of code. I also had a lot of bugs in the script and will be writing the test first on this time around. I'm stuck with the format for the resulting two workbooks, this script is glue code, development went ahead with the project without bothering to get a complete spec from the sponsor. I work for the same company as the developers but in the editorial department, editorial is co-sponsor of the project, and am expected to fix pesky details like this (I'm foaming at the mouth as I type this). I've tried factories, I've tried different object models, but each resulting workbook is so different when I find a design that works for generating one workbook the code is not really usable for generating the other. What I would really like are ideas about a maintainable and extensible design for parsing the source workbook into both workbooks with maximum code reuse, and or sympathy.

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  • When does the .NET FormAuthentication ticket get checked and how do I tap into this event?

    - by Mustafakidd
    Hello everyone - We are attempting to integrate an ASP.NET MVC site with our client's SSO system using PingFederate. I would like to use the built in FormsAuthentication framework to do this. The way I've gone about it so far is: Set up my Web.config so that my FormsAuthentication LoginURL goes to my site's "BeginAuthentication" action on a "Security" controller. From this action, I set up some session variables (what URL was being accessed, for example, since Ping won't send this info back to me), and then redirect to our client's login page on an external site (www.client.com/Login for example). From here, the authentication takes place and a cookie is generated on the same domain as the one that our application is running on which contains the unique identifier of the authenticated user, I've set it up so that once this happens, the Ping server will redirect to my "EndAuthentication" action on my "Security" controller. In this action, I call my membership class's "ValidateUser" method which takes this unique identifier from the cookie and loads in the user on our application that this ID refers to. I save that logged in user in our Session (Session["LoggedInAs"], for example) and expire the cookie that contains the id of the authenticated user that the SSO system provided for me. All of this works well. The issue I'm wondering about is what happens after our user has already authenticated and manually goes back to our client's login page (www.client.com/login) and logs in as another user. If they do that, then the flow from #2 above to number 3 happens as normal - but since there already exists an authenticated user on our site, it seems as though the FormsAuthentication system doesn't bother kicking off anything so I don't get a chance to check for the cookie I'm looking for to login as this new user. What I'd like to do is, somewhere in my Global.asax file (probably FormsAuthenticate_OnAuthenticate), check to see if the cookie that the SSO system sends to me exists, and if so, sign out of the application using FormsAuthentication.SignOut(). Another issue that seems to be related is that if I let my Session expire, the FormsAuthentication still seems to think I am authenticated and it lets me access a page even though no currently logged in user exists in my Session, so the page doesn't render correctly. Should I tap into the Session_End event and do FormsAuthentication.SignOut() here as well? Basically, I want to know when the authentication ticket created by System.Web.Security.FormsAuthentication.SetAuthCookie(..) gets checked in the flow of a request so that I can determine whether I need to SignOut() and force revalidation or not. Thanks for any help. Sorry for the length of this message, trying to be as detailed as possible. Mustafa

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  • How can I schedule tasks in a WinForms app?

    - by Greg
    QUESTION: How can I schedule tasks in a WinForms app? That is either (a) what is the best approach / .NET classes/methods to use of (b) if there is an open source component that does this well which one would be recommended. BACKGROUND: Winforms app (.NET v3.5, C#, VS2008) I'm assuming I will run the winforms application always, and just minimise to the system tray when not in use Want a simple approach (didn't want to get into separate service running that UI winforms app talks to etc) Want to be able to let the user select how often to schedule the sync (e.g. hourly, daily - pick time, etc) Ability to at the times when the scheduler fires to run a chunk of code (assume it could be wrapped as a backgroundworker task for example) The application is always running & appears in the system tray

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  • android searchable not opening

    - by ng93
    Hi im trying to use a searchable activity in my application but when the search button is pressed nothing happens AndroidManifest.xml <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.test.test" android:versionCode="1" android:versionName="1.0.0" android:configChanges="keyboardHidden|orientation"> <uses-sdk android:minSdkVersion="7"/> <application android:icon="@drawable/icon" android:label="Test"> <activity android:name=".Test" android:label="Test" android:debuggable="true" android:theme="@android:style/Theme.NoTitleBar" android:launchMode="singleTask"> <intent-filter> <action android:name="android.intent.action.MAIN"/> <category android:name="android.intent.category.LAUNCHER"/> </intent-filter> </activity> <activity android:name=".Searchable"> <intent-filter> <action android:name="android.intent.action.SEARCH" /> <category android:name="android.intent.category.DEFAULT" /> </intent-filter> <meta-data android:name="android.app.searchable" android:resource="@xml/searchable"/> </activity> <meta-data android:name="android.app.default_searchable" android:value=".Searchable"/> </application> </manifest> Searchable.xml (res/xml/searchable.xml) <?xml version="1.0" encoding="utf-8"?> <searchable xmlns:android="http://schemas.android.com/apk/res/android" android:label="Search" android:hint="Perform Search"> </searchable> Searchable.java (src/com/test/test/Searchable.java) package com.test.test; import android.app.Activity; import android.app.SearchManager; import android.content.Intent; import android.os.Bundle; public class Searchable extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); handleIntent(getIntent()); } @Override protected void onNewIntent(Intent intent) { setIntent(intent); handleIntent(intent); } private void handleIntent(Intent intent) { if (Intent.ACTION_SEARCH.equals(intent.getAction())) { String query = intent.getStringExtra(SearchManager.QUERY); } } } TIA, ng93

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  • VS2008 CR report viewer. Print and Export to PDF is not working

    - by S M Kamran
    I've a web project in VS2008. The problem is that from a web report viewer; report is not getting printed or exported to pdf. Report is being shown alright but when print button or export button is pressed, nothing happens. No errors or crash. Just nothing got happened. Default printer is set alright and I am able to print from that machine.. Am I missing some thing here??? Earlier when I installed the application in a new virtual directory report was not getting shown then I've copied aspnet_Client folder in my newly created web application root and the report was then made visible. However the print and export functionality is not working.

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  • How can I manage SQL CE databases in SQL Server Management Studio?

    - by Arul
    Dear all, I have Sqlserver 2005 Express Edition only. and VS 2005. How to i create my .sdf file. and how to create tables in that file... I am developing a SmartDevice Application. if any possible to access the Sql server 2000 DataBase without using .SDF file. Note: in my system i have VS 2005, SQL SERVER 2000, SQL SERVER 2005 Express Edition. And aslo i installed MS-SQL SERVER 2005 Compact Edition Developer SDK[ENU]. In my Sql server 2005 Studio, there is no any sqlserver compact edition in the EngineType Combo. what are the things i need to do.. to perfectly run my application with Data Base. Thanks, Thanks for previous one also.

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  • When to log exception?

    - by Rune
    try { // Code } catch (Exception ex) { Logger.Log("Message", ex); throw; } In the case of a library, should I even log the exception? Should I just throw it and allow the application to log it? My concern is that if I log the exception in the library, there will be many duplicates (because the library layer will log it, the application layer will log it, and anything in between), but if I don't log it in the library, it'll be hard to track down bugs. Is there a best practices for this?

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  • Creating a Stack Overflow notifier

    - by Trey
    I could not find a Stack Overflow notifier Android app so I am planning on making one. I hope that my app will serve a similar purpose as the Stack Overflow Notifier Chrome extension. This will be my first Android app so I am still unfamiliar with the platform. My main concern when creating this app is, what is the proper way to access the user's Recent Activity page? I thought of two different approaches but I'm not sure how to implement either one: Make the user login to Stack Overflow through the Browser application or an embedded browser and scrape their recent activity page occasionally for updates. Ask the user for their username and password and forward this information to Stack Overflow for authentication, storing cookies somehow to keep the session active. I think Astrid uses something similar to the first approach, but I haven't been able to figure it out yet from skimming their code. What is the correct way to handle a notification application like this that requires session management?

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  • Quartz in Webapplication

    - by JKV
    I have a question in scheduling jobs in web application. If we have to schedule jobs in web application we can either use java util Timer/TimerTask or Quartz(there are also other scheduling mechanism, but I considered Quartz). I was considering which one to use, when i hit the site http://oreilly.com/pub/a/java/archive/quartz.html?page=1 which says using timer has a bad effect as it creates a thread that is out of containers control in the last line. The other pages discuss Quartz and its capabilities, but I can read that Quartz also uses thread and/or threadpool to schedule tasks. My guess is that these threads are also not under the containers control Can anybody clarify this to me Is it safe to use Quartz in my web applications without creating hanging threads or thread locking issues? Thanks in advance

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  • Computing orientation of a square and displaying an object with the same orientation

    - by Robin
    Hi, I wrote an application which detects a square within an image. To give you a good understanding of how such an image containing such a square, in this case a marker, could look like: What I get, after the detection, are the coordinates of the four corners of my marker. Now I don't know how to display an object on my marker. The object should have the same rotation/angle/direction as the marker. Are there any papers on how to achieve that, any algorithms that I can use that proofed to be pretty solid/working? It doesn't need to be a working solution, it could be a simple description on how to achieve that or something similar. If you point me at a library or something, it should work under linux, windows is not needed but would be great in case I need to port the application at some point. I already looked at the ARToolkit but they you camera parameter files and more complex matrices while I only got the four corner points and a single image instead of a whole video / camera stream.

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