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  • Json problem with Page Method call on IE 8.

    - by ProfK
    I have the following code that populates a select element with values from an ajax call, via a Page Method. In FF, the code works perfectly, in IE8 I get the error: 'ResourceList[...].id' is null or not an object. What can I look at here? function readShift(jsonString) { var shiftInfo = Sys.Serialization.JavaScriptSerializer.deserialize(jsonString); var listItems = ""; listItems += "<option value='0'>[Unassigned]</option>"; for (var i = 0; i < shiftInfo.ResourceList.length; i++) { listItems += "<option value='" + shiftInfo.ResourceList[i].id + "'>" + shiftInfo.ResourceList[i].name + "</option>"; } $("#" + resourceListId).html(listItems); };

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  • Entity Framework insert error ("The Version field is required.")

    - by Graham
    I am using Silverlight 4 and RIA services. When I try to insert into my database, I get the following error: "Submit operation failed validation. Please inspect Entity.ValidationErrors for each entity in EntitiesInError for more information." Upon inspecting the ValidationErrors, I see: "The Version field is required." Isn't the Version field updated and maintained by the framework? If so, why is it null? If not, how am I supposed to set it?

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  • Lua - initializing

    - by Ockonal
    Hello, I can't init lua correctly under Arch Linux. Lua - latest version. Here is my code: #include <stdio.h> extern "C" { #include <lua.h> #include <lauxlib.h> #include <lualib.h> } int main() { lua_State *luaVM = luaL_newstate(); if (luaVM == NULL) { printf("Error initializing lua!\n"); return -1; } luaL_openlibs(luaVM); lua_close(luaVM); return 0; } /tmp/cc0iJ6lW.o: In function main': test_lua.cpp:(.text+0xa): undefined reference toluaL_newstate' test_lua.cpp:(.text+0x34): undefined reference to `luaL_openlibs' test_lua.cpp:(.text+0x40): undefined reference to `lua_close' collect2: ld returned 1 exit status What's wrong?

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  • Preventing Race Conditions

    - by Qua
    I'm using the built-in ajax functionality of MVC2. Basically the user types a search query, and on every key press a set of results for the query is shown. This works fine in almost all cases, but sometimes the server is a bit slow with a single response, and thus the result for the next key stroke is returned before the previous. When the previous key stroke result set is finally returned to the client it will overwrite the results for the newer search query that should actually have been shown. My code follows more or less along these lines: <% using (Ajax.BeginForm("SearchUser", null, new AjaxOptions() { UpdateTargetId = "findUserResults" }, new { id = "findUserAjaxForm" })) {%> Every keystroke submits this form and thus outputs the results in the 'findUserResults' element. How can I prevent older results from being displayed while still making use of the built-in functions provided in MVC2?

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  • Get the image file path

    - by Googler
    HI, I am trying to retrive the filname of the image file from a file path in my code. My filepath: c:\mydocuments\pictures\image.jpg which method can i use in c# to get he filename of the above mentioned path. Like String file = image.jpg I have used the system.drawing to get he path, but it returns null. my code: string file = System.drawing.image.fromfile(filepath,true); Is this the right way to get the image file name or is there any other inbuilt method in c#. Pls help me on this?

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  • pass parameter from javascript to another jsp

    - by gautam
    I want to pass parameter from a Javascript function to another JSP page. Currently I am doing like this: function viewapplet(strPerfMonPoint) { var dateSelected = document.forms[0].hdnDateSelected.value; document.forms[0].hdnPerfMonPoint.value = strPerfMonPoint; var win; win = window.open("jsp/PopUp.jsp?GraphPerfMon="+strPerfMonPoint+"&strDateSelected="+dateSelected, strPerfMonPoint,"width=800,height=625,top=40,left=60 resizable=No"); } I added hdnPerfMonPoint hidden variable and tried to acces in PopUp.jsp using request.getparameter(hdnPerfMonPoint) but it is giving null. I want my window.open like: window.open("jsp/PopUp.jsp", strPerfMonPoint,"width=800,height=625,top=40,left=60 resizable=No"); Please suggest solution.

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  • Database Design for One to One relationships

    - by Greelmo
    I'm trying to finalize my design of the data model for my project, and am having difficulty figuring out which way to go with it. I have a table of users, and an undetermined number of attributes that apply to that user. The attributes are in almost every case optional, so null values are allowed. Each of these attributes are one to one for the user. Should I put them on the same table, and keep adding columns when attributes are added (making the user table quite wide), or should I put each attribute on a separate table with a foreign key to the user table. I have decided against using the EAV model. Thanks!

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  • Memory leak with ContextMenuStrip

    - by Dave
    I'm creating a lot of custom controls and adding them to a FlowLayoutPanel. There is also a ContextMenuStrip created and populated at design time. Every time a control is added to the panel it has its ContextMenuStrip property assigned to this menu, so that all controls "share" the same menu. But I noticed when the controls are removed from the panel and disposed of, the memory in use in Task Manager doesn't drop. It rises around 50kB every time a control is created and added to the layout panel. I downloaded the trial of .NET Memory Profiler and it showed there were references to the menu strip hanging around after the controls were disposed. I changed the code to explicitly set the ContextMenuStrip property to null before disposing of the control, and yep, the memory is now released. Why is this? Shouldn't the GC clean up this type of thing?

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  • Dataset and Hierarchial Data How to Sort

    - by mdjtlj
    This is probably a dumb question, but I've hit a wall with this one at this current time. I have some data which is hierarchial in nature which is in an ADO.NEt dataset. The first field is the ID, the second is the Name, the third is the Parent ID. ID NAME Parent ID 1 Air Handling NULL 2 Compressor 1 3 Motor 4 4 Compressor 1 5 Motor 2 6 Controller 4 7 Controller 2 So the tree would look like the following: 1- Air Handling 4- Compressor 6 - Controller 3 - Motor 2- Compressor 7- Controller 5 - Motor What I'm trying to figure our is how to get the dataset in the same order that ths would be viewed in a treeview, which in this case is the levels at the appropriate levels for the nodes and then the children at the appropriate levels sorted by the name. It would be like binding this to a treeview and then simply working your way down the nodes to get the right order. Any links or direction would be greatly appreciated.

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  • display image in image control

    - by KareemSaad
    I had Image control and I added code to display images But there is not any image displayed ASPX: <body> <form id="form1" runat="server"> <div dir='<%= sDirection %>'> <div id="ContentImage" runat="server"> <asp:Image ID="Image2" runat="server" /> </div> </div> </form> </body> C#: using (System.Data.SqlClient.SqlConnection con = Connection.GetConnection()) { string Sql = "Select Image From AboutUsData Where Id=@Id"; System.Data.SqlClient.SqlCommand com = new System.Data.SqlClient.SqlCommand(Sql, con); com.CommandType = System.Data.CommandType.Text; com.Parameters.Add(Parameter.NewInt("@Id", Request.QueryString["Id"].ToString())); System.Data.SqlClient.SqlDataReader dr = com.ExecuteReader(); if (dr.Read() && dr != null) { Image1.ImageUrl = dr["Image"].ToString(); } }

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  • How to play audio file ios

    - by Camus
    I am trying to play an audio file but I can get it working. I imported the AVFoundation framework. Here is the code: NSString *fileName = [[NSBundle mainBundle] pathForResource:@"Alarm" ofType:@"caf"]; NSURL *url = [[NSURL alloc] initFileURLWithPath:fileName]; NSLog(@"Test: %@ ", url); AVAudioPlayer *audioFile = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:NULL]; audioFile.delegate = self; audioFile.volume = 1; [audioFile play]; I am receiving an error nil string parameter I copied the file to the supporting files folder so the file is there. Can you guys help me? Thanks

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  • I need to copy the text from a gridview texbox to the others in the column.

    - by Gilberto Munoz
    This is my code in c# protected void ibtCopiar_Click(object sender, ImageClickEventArgs e) { GridViewRow grdrows = DGPlanilla.Rows[0]; TextBox tb1 = (TextBox)grdrows.FindControl("TextBox1"); string valor = tb1.Text; if (valor != null || valor != "0") { foreach (GridViewRow grdrow in DGPlanilla.Rows) { grdrow.Cells[5].Text = valor; } } } this my code for the button when i debug i see that the value i have in the firts box is pass to the other textboxes in the column, but when it dysplay the page onle the first box show the value i have enter. the other texboxes don´t change.

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  • Java Prepared Statement Error

    - by Suresh S
    Hi Guys the following code throws me an error i have an insert statement created once and in the while loop i am dynamically setting parameter , and at the end i says ps2.addBatch() again while ( (eachLine = in.readLine()) != null)) { for (int k=stat; k <=45;k++) { ps2.setString (k,main[(k-2)]); } stat=45; for (int l=1;l<= 2; l++) { ps2.setString((stat+l),pdp[(l-1)]);// Exception } ps2.addBatch(); } This is the error java.lang.ArrayIndexOutOfBoundsException: 45 at oracle.jdbc.dbaccess.DBDataSetImpl._getDBItem(DBDataSetImpl.java:378) at oracle.jdbc.dbaccess.DBDataSetImpl._createOrGetDBItem(DBDataSetImpl.java:781) at oracle.jdbc.dbaccess.DBDataSetImpl.setBytesBindItem(DBDataSetImpl.java:2450) at oracle.jdbc.driver.OraclePreparedStatement.setItem(OraclePreparedStatement.java:1155) at oracle.jdbc.driver.OraclePreparedStatement.setString(OraclePreparedStatement.java:1572) at Processor.main(Processor.java:233)

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  • Objective-C stringWithFormat misses an argument?

    - by rocity
    When I run this code: - (NSString *)description{ return [NSString stringWithFormat:@"(FROG idle:%i animating:%i rect:%@ position:%@ tongue:%@)", self.idleTime, self.animating, NSStringFromCGRect(self.rect), NSStringFromCGPoint(self.position), tongue ]; } I get the following output: (FROG idle:0 animating:0 rect:(null) position:{{1,2}{3,4}} tongue:{5,6}) This is wrong because it seems to be skipping the rect format string and placing everything displaced by one. So idle and animating are what I expect, then rect is skipped, but the result from NSStringFromCGRect(self.rect) is placed into position, then the result for position is pushed to tongue, then tongue is not displayed at all. I'm at a loss.

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  • Passing an empty IEnumerable argument to a method

    - by avance70
    I have this method (simplified): void DoSomething(IEnumerable<int> numbers); And I invoke it like this: DoSomething(condition==true?results:new List<int>()); The variable results is formed with a LINQ select condition (IEnumerable). I was wondering is this List<int>() the best way (the fastest?) to pass an empty collection, or is new int[0] better? Or, something else would be faster, a Collection, etc.? In my example null wouldn't be ok.

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  • req.getParameter returns values wrong character encoding

    - by coder247
    I'm trying to get values from a JSP using getParameter which includes ü,é,à etc. But get wrong values in servlet. I've checked the content type with firebug and found that Content-Type text/html;charset=UTF-8 checked the POST section with firebug and found the correct value there, when I try to access it in servlet it is wrong. Gives ö instead of ö req.getCharacterEncoding(); returns null. Tried with setting req.setCharacterEncoding("UTF-8"); at the beginning of servlet but didn't help.

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  • What's void *userData exactly?

    - by mystify
    In a C function declaration, I have seen this parameter definition: void *userData so, what exactly is that? My guess: the void says it can be anything arbitrary, or even nothing. Almost similar to id of objective-c. It just allows to pass in whatever data structure you like. The star in front of userData says, that the argument must be passed in by reference. So when using this stuff in the function body, typically it must be casted and dereferenced. So if I pass in an pointer to SomeClass instance, I would get that like this: SomeClass *myObj = (SomeClass*)userData; In the case I had nothing special to pass along, I would provide NULL as argument. Are my assumptions correct? Or did I get something wrong?

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  • How to make a Scala Applet whose Applet class is a singleton?

    - by Jamie
    Hi, I don't know if a solution exists but it would be highly desirable. I'm making a Scala Applet, and I want the main Applet class to be a singleton so it can be accessed elsewhere in the applet, sort of like: object App extends Applet { def init { // do init here } } Instead I have to make the App class a normal instantiatable class otherwise it complains because the contructor is private. So the ugly hack I have is to go: object A { var pp: App = null } class App extends Applet { A.pp = this def init { // do init here } } I really hate this, and is one of the reasons I don't like making applets in Scala right now. Any better solution? It would be nice...

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  • Why is always MasterName blank in OnActionExecuted?

    - by devzero
    I'm trying to get the master page changed for all my aspx pages. For some reason I'm unable to detect when this function is called for a ascx page instead. Any help in correting this would be appreciated. protected override void OnActionExecuted(ActionExecutedContext filterContext) { var action = filterContext.Result as ViewResult; if (action != null && action.MasterName != "" && Request.IsAjaxRequest()) { action.MasterName = "Ajax"; } base.OnActionExecuted(filterContext); }

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  • How to mark a method as "ignore all handled exception" + "step through"? Even when user has selected

    - by Wolf5
    I want to mark a method as "debug step through" even if an exception is thrown (and catched within) the function. This is because 99% of the times I know this function will throw an exception (Assembly.GetTypes), and since this function is in a library I wish to hide this normal exception. (Why did MS not add an exceptionless GetTypes() call?) I have tried this but it still breaks the code when debugging: [DebuggerStepThrough] [DebuggerStepperBoundary] private Type[] GetTypesIgnoreMissing(Assembly ass) { Type[] typs; try { typs = ass.GetTypes(); } catch (ReflectionTypeLoadException ex) { typs = ex.Types; } var newlist = new List<Type>(); foreach (var type in typs) { if (type != null) newlist.Add(type); } return newlist.ToArray(); } Anyone know of a way to make this method 100% stepthrough even if ass.GetTypes() throw an exception in debug mode? It has to step through even when "Break on Thrown exceptions" is on. (I do not need to know I can explicitly choose to ignore that exact type of exception in the IDE)

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  • pthreads recursively calling system command and segfault appears

    - by jess
    I have a code base where i am creating 8 threads and each thread just calls system command to display date in a continuous cycle, as shown below: void * system_thread(void *arg) { int cpu = (int)arg; printf("thread : start %d\n", cpu); for (;;) { // date ã³ãã³ãã®å®è¡ if (mode == 0) { system("date"); } else { f_hfp_nlc_Fsystem("date"); } } sleep(timerval); return NULL; } This application segfaults after running for 2-3 seconds, due to following 2 reasons: 1. read access, where the address is out of VM area 2. write acces, where it does not of write permission and its trying to modify some structure.

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  • Freeing JavaScript object

    - by pion
    I am looking at the example from http://www.javascriptkit.com/javatutors/oopjs.shtml var person = new Object() person.name = "Tim Scarfe" person.height = "6Ft" But there is no mention how to "free" it in order to avoid memory leak. Will the following code free it? person = null; How do you free a JavaScript Object using "new Object()? How do you free a JavaScript Array allocated using "new Array(10)"? How do you free a JavaScript JSON allocated using "var json = {"width": 480, "height": 640}"? Thanks in advance for your help.

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  • Overriding the default error message for a ModelForm

    - by Jude Osborn
    Is there any way to override a error_message text for all the fields of a ModelForm's, without having to include all the field info in the ModelForm? For example, let's say I have a (very simple) model like this: People(models.Model): name = models.CharField(max_length=128, null=True, blank=True, help_text="Please type your name.") age = models.IntegerField(help_text="Please type your age.") I don't like the cut and dry default messages, such as, "Enter a whole number.", so I'd like to change them to something a bit nicer like "Please type a number." Ideally I'd be able to add an "error_message" property in the model, but the model does not support that property. So does that mean I have to basically duplicate all the model info in my ModelForm, or is there a way around that?

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  • System.ServiceModel.Channels.MessageHeader Error

    - by user220511
    I'm trying to get the following to work on my machine but I get an error (Cannot create an instance of the abstract class or interface 'System.ServiceModel.Channels.MessageHeader') using System; using System.IO; using System.Reflection; namespace com.mycompanyname.business { /// /// Summary description for SessionCreateRQClient. /// class SessionCreateRQClient { /// /// The main entry point. /// [STAThread] static void Main(string[] args) { try { // Set user information, including security credentials and the IPCC. string username = "user"; string password = "password"; string ipcc = "IPCC"; string domain = "DEFAULT"; string temp = Environment.GetEnvironmentVariable("tmp"); // Get temp directory string PropsFileName = temp + "/session.properties"; // Define dir and file name DateTime dt = DateTime.UtcNow; string tstamp = dt.ToString("s") + "Z"; //Create the message header and provide the conversation ID. MessageHeader msgHeader = new MessageHeader(); msgHeader.ConversationId = "TestSession"; // Set the ConversationId From from = new From(); PartyId fromPartyId = new PartyId(); PartyId[] fromPartyIdArr = new PartyId[1]; fromPartyId.Value = "WebServiceClient"; fromPartyIdArr[0] = fromPartyId; from.PartyId = fromPartyIdArr; msgHeader.From = from; To to = new To(); PartyId toPartyId = new PartyId(); PartyId[] toPartyIdArr = new PartyId[1]; toPartyId.Value = "WebServiceSupplier"; toPartyIdArr[0] = toPartyId; to.PartyId = toPartyIdArr; msgHeader.To = to; //Add the value for eb:CPAId, which is the IPCC. //Add the value for the action code of this Web service, SessionCreateRQ. msgHeader.CPAId = ipcc; msgHeader.Action = "SessionCreateRQ"; Service service = new Service(); service.Value = "SessionCreate"; msgHeader.Service = service; MessageData msgData = new MessageData(); msgData.MessageId = "mid:[email protected]"; msgData.Timestamp = tstamp; msgHeader.MessageData = msgData; Security security = new Security(); SecurityUsernameToken securityUserToken = new SecurityUsernameToken(); securityUserToken.Username = username; securityUserToken.Password = password; securityUserToken.Organization = ipcc; securityUserToken.Domain = domain; security.UsernameToken = securityUserToken; SessionCreateRQ req = new SessionCreateRQ(); SessionCreateRQPOS pos = new SessionCreateRQPOS(); SessionCreateRQPOSSource source = new SessionCreateRQPOSSource(); source.PseudoCityCode = ipcc; pos.Source = source; req.POS = pos; SessionCreateRQService serviceObj = new SessionCreateRQService(); serviceObj.MessageHeaderValue = msgHeader; serviceObj.SecurityValue = security; SessionCreateRS resp = serviceObj.SessionCreateRQ(req); // Send the request if (resp.Errors != null && resp.Errors.Error != null) { Console.WriteLine("Error : " + resp.Errors.Error.ErrorInfo.Message); } else { msgHeader = serviceObj.MessageHeaderValue; security = serviceObj.SecurityValue; Console.WriteLine("**********************************************"); Console.WriteLine("Response of SessionCreateRQ service"); Console.WriteLine("BinarySecurityToken returned : " + security.BinarySecurityToken); Console.WriteLine("**********************************************"); string ConvIdLine = "convid="+msgHeader.ConversationId; // ConversationId to a string string TokenLine = "securitytoken="+security.BinarySecurityToken; // BinarySecurityToken to a string string ipccLine = "ipcc="+ipcc; // IPCC to a string File.Delete(PropsFileName); // Clean up TextWriter tw = new StreamWriter(PropsFileName); // Create & open the file tw.WriteLine(DateTime.Now); // Write the date for reference tw.WriteLine(TokenLine); // Write the BinarySecurityToken tw.WriteLine(ConvIdLine); // Write the ConversationId tw.WriteLine(ipccLine); // Write the IPCC tw.Close(); //Console.Read(); } } catch(Exception e) { Console.WriteLine("Exception Message : " + e.Message ); Console.WriteLine("Exception Stack Trace : " + e.StackTrace); Console.Read(); } } } } I have added the reference System.ServiceModel and the lines: using System.ServiceModel; using System.ServiceModel.Channels; but I continue to get that error when trying to compile -- "Cannot create an instance of the abstract class or interface 'System.ServiceModel.Channels.MessageHeader'" I am using Microsoft Visual Studio 2008 Version 9.0.21022.8 RTM Microsoft .NET Framework Version 3.5 SP1 Professional Edition Is there another reference I have to add? Or a dll to move over? I wonder was the code above written for Framework 2.0 only? Thanks for your help.

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  • SSL_CTX_set_cert_verify_callback vs. SSL_CTX_set_verify

    - by BreakPoint
    Hello, Can anyone tell me what is the difference between SSL_CTX_set_cert_verify_callback and SSL_CTX_set_verify? From OpenSSL docs: SSL_CTX_set_cert_verify_callback() sets the verification callback function for ctx. SSL objects that are created from ctx inherit the setting valid at the time when SSL_new(3) is called. and: SSL_CTX_set_verify() sets the verification flags for ctx to be mode and specifies the verify_callback function to be used. If no callback function shall be specified, the NULL pointer can be used for verify_callback. So I'm trying to understand which callback to send for each one (from client side). Thanks experts.

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