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  • value of type 'string' cannot be converted to 'Devart.data.postgresql.PgSqlParameter'

    - by hector
    The following is my PostgreSQL table structure and the vb.net code to insert into the tables.Using Devart's Component For PostgreSQL Connect table gtab83 CREATE TABLE gtab83 ( orderid integer NOT NULL DEFAULT nextval('seq_gtab83_id'::regclass), acid integer, slno integer, orderdte date ) table gtab84 CREATE TABLE gtab84 ( orderdetid integer DEFAULT nextval('seq_gtab84_id'::regclass), productid integer, qty integer, orderid integer ) Code to insert into the above tables is below '1.)INSERT INTO gtab83(orderid,acid, slno, orderdte) VALUES (?, ?, ?); '2.)INSERT INTO gtab84(orderdetid,productid, qty, orderid) VALUES (?, ?, ?); Try Dim cmd As PgSqlCommand = New PgSqlCommand("", Myconnstr) cmd.CommandText = _ "INSERT INTO GTAB83(ACID,SLNO,ORDERDTE)" & _ "VALUES " & _ "(@acid,@slno,@orderdte);" Dim paramAcid As PgSqlParameter = New PgSqlParameter("@acid", PgSqlType.Int, 0) Dim paramSlno As PgSqlParameter = New PgSqlParameter("@slno", PgSqlType.Int, 0) Dim paramOrderdte As PgSqlParameter = New PgSqlParameter("@orderdte", PgSqlType.Date, 0) paramAcid = cboCust.SelectedValue paramSlno = txtOrderNO.Text #ERROR# paramOrderdte = (txtDate.Text, "yyyy-MM-dd") #ERROR# Catch ex As Exception End Try ERROR : value of type 'string' cannot be converted to 'Devart.data.postgresql.PgSqlParameter'

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  • Most effective way of drawing 4 lines in an iPhone app?

    - by Ross
    basic question, but I'm unsure. Not looking for code as an answer. I want to draw 4 short lines 1px lines on a view. What is the best way to approach this task? Options:- Load an image of the line, then create 4 UIImageViews with it. Create my own subclass of a UIView that draws a line in the draw rect method. Draw elsewhere on another view, another UIImageView that has an UIImage inside it (is this possible?) Another way? Thanks Ross

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  • Using makecert for Development SSL

    - by John
    Here's my situation: I'm trying to create a SSL certificate that will be installed on all developer's machine's, along with two internal servers (everything is non-production). What do I need to do to create a certificate that can be installed in all of these places? Right now I've got something along these lines, using the makecert application in Microsoft Visual Studio 8\SDK\v2.0\Bin: makecert -r -pe -n "CN=MySite.com Dev" -b 01/01/2000 -e 01/01/2033 -eku 1.3.6.1.5.5.7.3.1 -ss Root -sr localMachine -sky exchange -sp "Microsoft RSA SChannel Cryptographic Provider" -sy 12 mycert.cer However, I'm not sure as to how to place this .cer file on the other computers, and when I install it on my local machine IIS, everytime I visit a page via https:, I get the security prompt (even after I've installed the certificate). Has anyone done this before?

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  • No method found compiler warning

    - by Magic Bullet Dave
    I have create a class from a string, check it is valid and then check if it responds to a particular method. If it does then I call the method. It all works fine, except I get an annoying compiler warning: "warning: no '-setCurrentID:' method found". Am I doing something wrong here? Is there anyway to tell the compiler all is ok and stop it reporting a warning? The here is the code: // Create an instance of the class id viewController = [[NSClassFromString(class) alloc] init]; // Check the class supports the methods to set the row and section if ([viewController respondsToSelector:@selector(setCurrentID:)]) { [viewController setCurrentID:itemID]; } // Push the view controller onto the tab bar stack [self.navigationController pushViewController:viewController animated:YES]; [viewController release]; Cheers Dave

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  • Django: many-to-one fields and data integrity

    - by John
    Let's say that I have a Person who runs an inventory system. Each Person has some Cars, and each Car has a very large number of Parts (thousands, let's say). A Person, Bob, uses a Django form to create a Car. Now, Bob goes to create some Parts. It is only at the form level that Django knows that the Parts belong to some specific Car, and that the Parts.ForeignKey(Car) field should only have a specific Car as a choice. When creating a Part, you have to mess with the form's constructor or similar in order to limit the choice of Cars to only the cars owned by Bob. It does not seem proper that to enforce this ownership at the form level. It seems that other users' Cars must be inaccessible to anyone but the owner of the Car. What do you all think about this, and is there any way to enforce this?

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  • ASP.NET MVC does not add ModelError when invoking from unit test

    - by Tomas Lycken
    I have a model item public class EntryInputModel { ... [Required(ErrorMessage = "Description is required.", AllowEmptyStrings = false)] public virtual string Description { get; set; } } and a controller action public ActionResult Add([Bind(Exclude = "Id")] EntryInputModel newEntry) { if (ModelState.IsValid) { var entry = Mapper.Map<EntryInputModel, Entry>(newEntry); repository.Add(entry); unitOfWork.SaveChanges(); return RedirectToAction("Details", new { id = entry.Id }); } return RedirectToAction("Create"); } When I create an EntryInputModel in a unit test, set the Description property to null and pass it to the action method, I still get ModelState.IsValid == true, even though I have debugged and verified that newEntry.Description == null. Why doesn't this work?

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  • Convert data retrieved from MySQL database into JSON object using Python/Django

    - by rohanbk
    I have a MySQL database called People which contains the following schema <id,name,foodchoice1,foodchoice2>. The database contains a list of people and the two choices of food they wish to have at a party (for example). I want to create some kind of Python web-service that will output a JSON object. An example of output should be like: { "guestlist": [ {"id":1,"name":"Bob","choice1":"chicken","choice2":"pasta"},{"id":2,"name":"Alice","choice1":"pasta","choice2":"chicken"} ], "partyname": "My awesome party", "day": "1", "month": "June", "2010": "null" } Basically every guest is stored into a dictionary 'guestlist' along with their choices of food. At the end of the JSON object is just some additional information that only needs to be mentioned once. The question that I have is regarding the method that I need to utilize to grab the data from my database, and create the JSON object. Do I need to use a standard Model/View structure of Django or can I get away with something that is much simpler since what I need to do is really simple?

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  • How to generalise the endpoints in my channelfactory

    - by Meher
    Hi, I have a requirement to actually generalise the endpoints of different WCF services,create a proxy and invoke the action. We have like 4 pages and 4 services to serve those pages. For each n every page we have to call the specific service endpoint and invoke the action Example:: private IList<FunctionCodes> i_oFunctionList; ChannelFactory<IFunctionService> m_oFunctionFactory; IFunctionService m_oFunctionProxy; m_oFunctionFactory = new ChannelFactory("FunctionServiceEndPoint"); i_oFunctionList= m_oFunctionProxy.GetAllFunction(iFirstResult, iMaxPageSize, "", "", "", out iRows); BindGrid bindGrid = new BindGrid(DisplayGrid1); bindGrid.DataTable = BuildDataTable(i_oFunctionList); So the requirement is we want to move this section(binding the grid) to a user control, generalising the endpoints, create the proxy and implement. Is there any way to achieve this? Quick responses are really appreciated.

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  • cannot edit any php files using specific functions

    - by user458474
    I cannot update any txt files using php. When I write a simple code like the following: <?php // create file pointer $fp = fopen("C:/Users/jj/bob.txt", 'w') or die('Could not open file, or fike does not exist and failed to create.'); $mytext = '<b>hi. This is my test</b>'; // write text to file fwrite($fp, $mytext) or die('Could not write to file.'); $content = file("C:/Users/jj/bob.txt"); // close file fclose($fp); ?> Both files do exist in the folder. I just cannot see any updates on bob.txt. Is this a permission error in windows? It works fine on my laptop at home. I also cannot change the php files on my website, using filezilla.

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  • Spring/Hibernate/Junit example of testing DAO against HSQLDB

    - by Ryan P.
    Hi guys, I'm working on trying to implement a JUnit test to check the functionality of a DAO. (The DAO will create/read a basic object/table relationship in HSQLDB). The trouble I'm having is the persistence of the DAO (for the non-test code) is being completed through an in-house solution using Spring/Hibernate, which eliminates the usual *.hbm.xml templates that most examples I have found contain. Beacuse of this, I'm having some trouble understanding how to setup a JUnit test to implement the DAO to create/read (just very basic funtionality) to an in-memory HSQLDB. I have found a few examples, but the usage of the in-house persistence means I can't extend some of the classes the examples show (I can't seem to get the application-context.xml setup properly). Can anyone suggest any projects/examples I could take a look at (or any documentation) to further my understanding of the best way to implement this test functionality? I feel like this should be really simple, but I keep running into problems implementing the examples I have found. Thanks in advance!

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  • MVC Rendered Partial, how to get partial/view model in main model post to controller

    - by user1475788
    I have a text file and when users upload the file, the controller action method parses that file using state machine and uses a generic list to store some values. I pass this back to the view in the form of an IEnumerable. Within my main view, based on this ienumerable list I render a partail view to iterate items and display labels and a textarea. Users could add their input in the text area. When the users hit the save button this ienumrable list from the partial view rendered is null. so please advice any solutions. here is my main view @model RunLog.Domain.Entities.RunLogEntry @{ ViewBag.Title = "Create"; Layout = "~/Views/Shared/_Layout.cshtml"; } @using (Html.BeginForm("Create", "RunLogEntry", FormMethod.Post, new { enctype = "multipart/form-data" })) { <div id="inputTestExceptions" style="display: none;"> <table class="grid" style="width: 450px; margin: 3px 3px 3px 3px;"> <thead> <tr> <th> Exception String </th> <th> Comment </th> </tr> </thead> <tbody> @if (Model.TestExceptions != null) { foreach (var p in Model.TestExceptions) { Html.RenderPartial("RunLogTestExceptionSummary", p); } } </tbody> </table> </div> } partial view as follows: @model RunLog.Domain.Entities.RunLogEntryTestExceptionDisplay <tr> <td> @Model.TestException@ </td> <td>@Html.TextAreaFor(Model.Comment, new { style = "width: 200px; height: 80px;" }) </td> </tr> Controller action [HttpPost] public ActionResult Create(RunLogEntry runLogEntry, String ServiceRequest, string Hour, string Minute, string AMPM, string submit, IEnumerable<HttpPostedFileBase> file, String AssayPerformanceIssues1, IEnumerable<RunLogEntryTestExceptionDisplay> models) { } The problem is test exceptions which contains exception string and comment is comming back null.

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  • Creating method templates in Eclipse

    - by stevebot
    Is there any way to do the following in eclipse? Have eclipse template a method like the following public void test(){ // CREATE MOCKS // CREATE EXPECTATIONS // REPLAY MOCKS // VERIFY MOCKS } so then I could presumably just use intellisense and select an option like "createtest" and have it stub out a method with the comments similar to the above?My problem is that often myself and other developers I know forgot all the steps we need to follow to do what we dub as a valid unit test for our application. If I could template our test methods to stub out the comments above it would be a big help.

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  • Need some tips on my SQL script?

    - by Nano HE
    Hi I plan to create a tale to store the race result like this, Place RaceNumber Gender Name Result 12 0112 Male Mike Lee 1:32:40 16 0117 Female Rose Marry 2:20:40 I confused at the items type definiation. Q1.I am not sure the result can be set to varchar(32) or other type? Q2. and for racenumber, between int(11) and varchar(11), which one is better? Q3. Can I use `UNIQUE KEY` like my way? Q4. Do I need split name to firstName and lastName in my DB table? DROP TABLE IF EXISTS `race_result`; CREATE TABLE IF NOT EXISTS `race_result` ( `id` int(11) NOT NULL auto_increment, `racenumber` int(11) NOT NULL, `gender` enum('male','female') NOT NULL, `name` varchar(16) NOT NULL, `result` varchar(32) NOT NULL, PRIMARY KEY (`id`), UNIQUE KEY `racenumber` (`racenumber`,`id`) ) ENGINE=MyISAM AUTO_INCREMENT=3 DEFAULT CHARSET=utf8 AUTO_INCREMENT=3;

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  • Are there any kata for practice VIM?

    - by Grzegorz Gierlik
    I've used VIM for many years as my primary text editor. And I am still learning how to use VIM for various editing tasks. The problem is that even if I learn something and use it once a week I forgot soon how I did it -- classic case is search and replace in many buffers using bufdo :(. I was wondering if there is any kata to daily VIM practice including many VIM commands: open existing files, create new files, edit files and move around: move cursor (beginning & end of line/function/block/screen, top & bottom of screen, move screen line up/down, etc.), mark, copy & paste, insert & remove characters/words/lines, move between buffers, move between windows, arrange windows, search & replace, repeat last command, formatting (=), probably some more (bookmarks, macros). save files, create/update/save an open projects (mksession and source). Do you know any kata for VIM of tutorial which could help to practice all above (and more) VIM commands?

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  • How to do an fetch request with expressions like this on the iPhone?

    - by dontWatchMyProfile
    The documentation has an example on how to retrieve simple values only, rather than managed objects. This remembers a lot SQL using aliases and functions to only retrieve calculated values. So, actually pretty geeky stuff. To get the minimum date from a bunch of records, this is used on the mac: NSFetchRequest *request = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"Event" inManagedObjectContext:context]; [request setEntity:entity]; // Specify that the request should return dictionaries. [request setResultType:NSDictionaryResultType]; // Create an expression for the key path. NSExpression *keyPathExpression = [NSExpression expressionForKeyPath:@"creationDate"]; // Create an expression to represent the minimum value at the key path 'creationDate' NSExpression *minExpression = [NSExpression expressionForFunction:@"min:" arguments:[NSArray arrayWithObject:keyPathExpression]]; // Create an expression description using the minExpression and returning a date. NSExpressionDescription *expressionDescription = [[NSExpressionDescription alloc] init]; // The name is the key that will be used in the dictionary for the return value. [expressionDescription setName:@"minDate"]; [expressionDescription setExpression:minExpression]; [expressionDescription setExpressionResultType:NSDateAttributeType]; // Set the request's properties to fetch just the property represented by the expressions. [request setPropertiesToFetch:[NSArray arrayWithObject:expressionDescription]]; // Execute the fetch. NSError *error; NSArray *objects = [managedObjectContext executeFetchRequest:request error:&error]; if (objects == nil) { // Handle the error. } else { if ([objects count] > 0) { NSLog(@"Minimum date: %@", [[objects objectAtIndex:0] valueForKey:@"minDate"]; } } [expressionDescription release]; [request release]; Nice, I though - but having a deep look into NSExpression -expressionForFunction:arguments: it turns out that iPhone OS does NOT support the min: function. Well, probably there's a nifty way to use an own function for this kind of stuff on the iPhone as well? Because on thing I'm already worrying about is, how I'm gonna sort a table based on the calculated distance of targets on a map (location-based stuff).

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  • A simple factory_girl question

    - by gmile
    I have two factories (post_factory.rb, comment_factory.rb) in separate files. I'd like to create a bit complex factory, which will create a post with associated comments for me. I created a third file, called complex_factory.rb, and wrote the following code: Factory.define :post_with_comments, :parent => :post do |post| post.after_create { |p| Factory(:user_last_state, :post => p) } end But rake spec raises an error, stating that the file is unaware of post and comment factories. At the very next moment, I naïvely wrote requires at the top: require "post_factory.rb" require "comment_factory.rb" But that didn't gave any proper result. Maybe this requires actually looking the wrong direction? Or they pretty much don't matter (as registering factories for visibility might be more complex that I assume). Am I missing something? Any ideas?

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  • Run groovy script from within gradle

    - by macattack
    What's the best way to create a gradle task, which runs a groovy script? I realize that gradle build files are groovy, so I would think it would be possible to do something like this: task run << { Script app = new GroovyShell().parse(new File("examples/foo.groovy")) // or replace .parse() w/ a .evalulate()? app.run() } I get all kinds of whacky errors when I try this if bar.groovy is using @Grab annotations or even doing simple imports. I want to create a gradle task to handle this, so that I can hopefully reuse the classpath definition. Would it be better to move the examples directory into the src directory somewhere? What's a best practice?

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  • Styling a hr for internet explorer

    - by Qwibble
    Hey, in my quest to create as image light a site as possible, I'm looking to create two tone hr's. I've achieved this in modern browsers, but want to achieve the same effect in ie6 and 7. The current code I am using is hr { border-bottom:1px solid #FFFFFF; border-top:1px solid #dcdcdc; clear:both; height:0; border-left:0px; border-right:0px; } I've tried, with no success to make this work in ie6 and 7 without having to target the browsers specifically. Any thoughts? (Heres my current project where I am employing this code, and looking to make it cross browser - http://www.qwibbledesigns.co.uk/preview/aurelius/ ) Cheers Matt

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  • Creating an installer with WPF forms, packaged files and custom setup actions in C#

    - by RodH257
    I'm trying to create a way of deploying a set of tools (which are add-ins to 3rd party software) to my users. I would like to do the following: User Enters Serial Dlls in their directory structure is extracted to program files a file is copied to a location in ProgramData (this registers my add-ins to the 3rd party application) Online activation for software is performed Can anyone point me into the right direction for this? I had a look at deployment projects in Visual Studio but I'm not sure if they are what I'm after. Main problem is they are ugly, I would like to have a nice WPF installer, and have a more custom experience. But I guess that can be traded off if its going to make things easier. I was thinking, I could just make my own C# project that extracts the files, but I have no idea how to package them up and extract them all as part of one download (like the MSI files that the deployment projects create). Can anyone point me in the right direction?

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  • Accidental Complexity in OpenSSL HMAC functions

    - by Hassan Syed
    SSL Documentation Analaysis This question is pertaining the usage of the HMAC routines in OpenSSL. Since Openssl documentation is a tad on the weak side in certain areas, profiling has revealed that using the: unsigned char *HMAC(const EVP_MD *evp_md, const void *key, int key_len, const unsigned char *d, int n, unsigned char *md, unsigned int *md_len); From here, shows 40% of my library runtime is devoted to creating and taking down **HMAC_CTX's behind the scenes. There are also two additional function to create and destroy a HMAC_CTX explicetly: HMAC_CTX_init() initialises a HMAC_CTX before first use. It must be called. HMAC_CTX_cleanup() erases the key and other data from the HMAC_CTX and releases any associated resources. It must be called when an HMAC_CTX is no longer required. These two function calls are prefixed with: The following functions may be used if the message is not completely stored in memory My data fits entirely in memory, so I choose the HMAC function -- the one whose signature is shown above. The context, as described by the man page, is made use of by using the following two functions: HMAC_Update() can be called repeatedly with chunks of the message to be authenticated (len bytes at data). HMAC_Final() places the message authentication code in md, which must have space for the hash function output. The Scope of the Application My application generates a authentic (HMAC, which is also used a nonce), CBC-BF encrypted protocol buffer string. The code will be interfaced with various web-servers and frameworks Windows / Linux as OS, nginx, Apache and IIS as webservers and Python / .NET and C++ web-server filters. The description above should clarify that the library needs to be thread safe, and potentially have resumeable processing state -- i.e., lightweight threads sharing a OS thread (which might leave thread local memory out of the picture). The Question How do I get rid of the 40% overhead on each invocation in a (1) thread-safe / (2) resume-able state way ? (2) is optional since I have all of the source-data present in one go, and can make sure a digest is created in place without relinquishing control of the thread mid-digest-creation. So, (1) can probably be done using thread local memory -- but how do I resuse the CTX's ? does the HMAC_final() call make the CTX reusable ?. (2) optional: in this case I would have to create a pool of CTX's. (3) how does the HMAC function do this ? does it create a CTX in the scope of the function call and destroy it ? Psuedocode and commentary will be useful.

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  • Drawing graphs in MS Excel somehow got complicated

    - by Ivan
    I want to draw several graphs and combine them into one figure. I will explain the problem in an example. Let's say that I want to draw two graphs with these points: Graph #1 (X and Y are defining a coordinate). X - Y _____ 1 - 5 2 - 5 5 - 7 9 - 10 Graph #2 X - Y _____ 6 - 8 8 - 12 9 - 7 12 - 8 15 - 11 21 - 11 What I do is that I create a chart and click on "Select Data". There I create two series and choose X and Y values. However, this doesn't work since it doesn't allow me to choose different X values for different graphs. Although I choose different for these two series, the second one is chosen for both. This is how it looks like in the end: Do you know how to fix this? I'm using Excel 2008 for Mac.

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  • How to generate semi transparent shapes in php using gdlib

    - by fabbrillo
    Hi, this is the script i made // Create image $img = imagecreatetruecolor($w, $h); // Transparent image $white = imagecolorallocate($img,255,255,255); imagefilledrectangle($img,0,0,$w,$h,$white); imagecolortransparent($img, $white); //imagealphablending( $img, true ); //imagesavealpha( $img, true ); // Shape color $bgColor = imagecolorallocatealpha($img, 100, 250, 250, 70); imagefilledrectangle($img, 15, 20, 50, 100, $bgColor); imagefilledrectangle($img, 10, 25, 60, 100, $bgColor); imagepng($img, 'file.png'); the problem is the rectangles are transparent among them but not with the background i mean, i need to create a transparent image with a semi transparent shape inside any suggestions? thanks for your help

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  • How to reuse a dropdownlist each row of a table instead of rebuilding it.

    - by Praesagus
    I have a table the uses the same dropdown list in each row. I thought that I could just create one dropdown list and then reuse it in each new row, but the table only ends up with one row unless I create "new" dropdownlist. Am I approaching this all wrong? Thanks private void UserRoles() { Table table = MakeTable(); Ewo.sqlDataStore.Administrator sql = new Ewo.sqlDataStore.Administrator(); DataSet dataset =sql.SiteUserRoleList(); DropDownList sel = RoleList(dataset.Tables[0]); if(tools.validDataSet(dataset)) { if (dataset.Tables.Count > 1)//existing roles are #2, show the roles the user is part of { foreach (DataRow dRow in dataset.Tables[1].Rows) { table.Rows.Add(CreateRoleRow(Convert.ToString(dRow["SitePageGroupName"]), sel));//add a row with data } } table.Rows.Add(CreateRoleRow(sel));//add a blank row on the bottom } AdminSiteUerRoles.Controls.Add(table);//add it all to the page }

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