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  • Delphi 2010 - Decode Base64 encoded image from XML doc

    - by James
    I am trying to decode a base64 encoded EMF image from an XML document in my application and render it on screen, however, it never seems to appear. If I copy/paste the data from the XML document into Notepad++ and use the Base64 Decode option and save the file as a .emf it opens fine in mspaint. So I think the issue is how I am decoding it. I have tried the following decode methods described in these articles: How to encode / decode Base 64 string http://www.swissdelphicenter.ch/torry/showcode.php?id=1223 I have also tried the TIdDecoderMIME class to no avail. Does anyone know the most reliable way of decoding a base64 encoded string from XML?

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  • Confused about encryption with public and private keys (which to use for encryption)

    - by jax
    I am making a licensing system when clients ask my server for a license and I send them a license if they are permitted to have one. On my current system I encrypt the license using a single private key and have the public key embedded into the client application that they use to decrypt the license. It works! Others have told me that I should be encrypting with the public key on the server and distributing the private key to clients. I have searched the web and can see that sometimes they use the private key to encrypt and other times they use the public key to encrypt. In this case what am I supposed to do?

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  • How to escape % in roxygen literate programming?

    - by Karsten W.
    The default value of a parameter of my function contains a "%". This seems to be a problem for roxygen, it produces a lot of warnings and R CMD check fails when trying to build latex documentation. How can I make this function (and its documentation) work? Using %% or \% instead of % does not help. #' Test escape \% from in-source documentation (roxygen). #' #' What happens when parameters contain special latex characters? #' #' @param x unsuspicious parameter #' @param format sprintf format string (default "\%5.0f") #' #' @return formatted string #' @export #' @author Karsten Weinert testroxy <- function(x, format = "%5.0f") { sprintf(format,x) }

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  • .net XML serialization: how to specify an array's root element and child element names

    - by Jeremy
    Consider the following serializable classes: class Item {...} class Items : List<Item> {...} class MyClass { public string Name {get;set;} public Items MyItems {get;set;} } I want the serialized output to look like: <MyClass> <Name>string</Name> <ItemValues> <ItemValue></ItemValue> <ItemValue></ItemValue> <ItemValue></ItemValue> </ItemValues> </MyClass> Notice the element names ItemValues and ItemValue doesn't match the class names Item and Items, assuming I can't change the Item or Items class, is there any why to specify the element names I want, by modifying the MyClass Class?

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  • iText PdfPTables, document.add with writeSelectedRows

    - by J2SE31
    I am currently modifying an existing system that generates reports with iText and java. The report template is as follows: Header1(PdfPTable) Header2(PdfPTable) Body(PdfPTable) I am currently using the writeSelectedRows to display Header1 and Header2, but document.add is used to display the Body. The problem is that the system is setup to write the headers AFTER the body has already been displayed on the screen, so I am displaying my headers on top of my body content. My question is how do I add my body table (using document.add) and have it display about halfway down the page (or any predetermined vertical position)? This way I would have sufficient room to display my headers above the body table. Note: I believe the body table is using document.add to facilitate automatic paging if the body content is too large.

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  • how mount userdata.img or userdata-qemu.img in osx

    - by misbell
    Disk Utility in OSX easily mounts an SD Card image as a device, but not so the other img files. I want to get the database I just created in the Android Emulator off the drive and into my osx file system. I updated my system with qemu using macports but no combination I try succeeds. Anyone figured out how to do this? Obviously one way I can do this is run the app on my phone than mount the phone as a USB drive. But I don't wanna. I wanna get it off the drive the emulator uses :-) Thanks in advance, folks. Michael

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  • Binding Contents of a ListBox to Selected Item from Another Listbox w/JSF & Managed Beans

    - by nieltown
    Hi there! I currently have a JSF application that uses two listboxes. The first, say ListBox1, contains a list of manufacturers; each option comes from the database (via a method getManufacturers in a class called QueryUtil), is populated dynamically, and its value is an integer ID. This part works so far. My goal is to populate a second listbox, say ListBox2, with a list of products sold by the manufacturer. This list of products will come from the database as well (products are linked to a manufacturer via a foreign key relationship, via a method getProducts in my QueryUtil class). How do I go about doing this? Please bear in mind that I've been working with JSF for under 24 hours; I'm willing to accept the fact that I'm missing something very rudimentary. Again, I've been able to populate the list of manufacturers just fine; unfortunately, adding the Products component gives me java.lang.IllegalArgumentException: argument type mismatch faces-config.xml <managed-bean> <managed-bean-name>ProductsBean</managed-bean-name> <managed-bean-class>com.nieltown.ProductsBean</managed-bean-class> <managed-bean-scope>request</managed-bean-scope> <managed-property> <property-name>manufacturers</property-name> <property-class>java.util.ArrayList</property-class> <value>#{manufacturers}</value> </managed-property> <managed-property> <property-name>selectedManufacturer</property-name> <property-class>java.lang.Integer</property-name> <value>#{selectedManufacturer}</value> </managed-property> <managed-property> <property-name>products</property-name> <property-class>java.util.ArrayList</property-class> <value>#{products}</value> </managed-property> <managed-property> <property-name>selectedProduct</property-name> <property-class>java.lang.Integer</property-name> <value>#{selectedProducts}</value> <managed-property> </managed-bean> com.nieltown.ProductsBean public class ProductsBean { private List<SelectItem> manufacturers; private List<SelectItem> products; private Integer selectedManufacturer; private Integer selectedProduct; public ProductsBean() {} public Integer getSelectedManufacturer(){ return selectedManufacturer; } public void setSelectedManufacturer(Integer m){ selectedManufacturer = m; } public Integer getSelectedProduct(){ return selectedProduct; } public void setSelectedProduct(Integer p){ selectedProduct = p; } public List<SelectItem> getManufacturers(){ if(manufacturers == null){ SelectItem option; plans = new ArrayList<SelectItem>(); QueryUtil qu = new QueryUtil(); Map<Integer, String> manufacturersMap = qu.getManufacturers(); for(Map.Entry<Integer, String> entry : manufacturersMap.entrySet()){ option = new SelectItem(entry.getKey(),entry.getValue()); manufacturers.add(option); } } return manufacturers; } public void setManufacturers(List<SelectItem> l){ manufacturers = l; } public List<SelectItem> getProducts(){ if(products == null){ SelectItem option; products = new ArrayList<SelectItem>(); if(selectedPlan != null){ PMTQueryUtil pqu = new PMTQueryUtil(); Map<Integer, String> productsMap = pqu.getProducts(); for(Map.Entry<Integer, String> entry : productsMap.entrySet()){ option = new SelectItem(entry.getKey(),entry.getValue()); products.add(option); } } } return products; } public void setProducts(List<SelectItem> l){ products = l; } } JSP fragment <h:selectOneListbox id="manufacturerList" value="#{ProductsBean.selectedManufacturer}" size="10"> <f:selectItems value="#{ProductsBean.manufacturers}" /> </h:selectOneListbox> <h:selectOneListbox id="productList" value="#{PendingPlansBean.selectedProduct}" size="10"> <f:selectItems binding="#{ProductsBean.products}" /> </h:selectOneListbox>

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  • C# - Repeating a method call using timers

    - by Jeremy Rudd
    In a VSTO add-in I'm developing, I need to execute a method with a specific delay. The tricky part is that the method may take anywhere from 0.1 sec to 1 sec to execute. I'm currently using a System.Timers.Timer like this: private Timer tmrRecalc = new Timer(); // tmrRecalc.Interval = 500 milliseconds private void tmrRecalc_Elapsed(object sender, System.Timers.ElapsedEventArgs e){ // stop the timer, do the task     tmrRecalc.Stop();         Calc.recalcAll();         // restart the timer to repeat after 500 ms     tmrRecalc.Start(); } Which basically starts, raises 1 elapse event after which it is stopped for the arbitrary length task is executed. But the UI thread seems to hang up for 3-5 seconds between each task. Do Timers have a 'warm-up' time to start? Is that why it takes so long for its first (and last) elapse? Which type of timer do I use instead?

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  • Entity Framework: How to bind related products

    - by Waheed
    I am using the following Linq query from p in Product.Include("ProductDetails.Colors") where p.ProductID.Equals(18) select p; And then using the result of this query to bind the GridView. The productDetails are bind to the grid fine, but the Colors are not bind. To bind colors i am using <%# Eval("Colors.CategoryName") %. Error is " Field or property with the name 'Colors.CategoryName' was not found on the selected data source." But in a loop i am getting this fine. foreach (ProductDetails proDet in pd.ProductDetails) { string bar = proDet.BarCode; string color = proDet.Colors.CategoryName; }

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  • ListView selection issue...Using onItemClick(AdapterView<?> parent, View view, ...)

    - by searchMaker
    The problem I hope to resolve here is that when I click on one item in the ListView that item's background changes to light gray, but when I continue to scroll through the list every 4th item has the background changed to light gray even though those other items have not been clicked. How do I make only the item I clicked be effected by the click? ListView lv = (ListView) findViewById(R.id.resultsList); lv.setAdapter(new ArrayAdapter(this, R.layout.resultitem, (String[])labelList.toArray(new String[labelList.size()]))); lv.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView parent, View view, int position, long id) { TextView tv = (TextView)view.findViewById(R.id.result); tv.setBackgroundColor(Color.LTGRAY); tv.setTextColor(Color.BLACK);

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  • Using Lite Version of Entity in nHibernate Relations?

    - by Amitabh
    Is it a good idea to create a lighter version of an Entity in some cases just for performance reason pointing to same table but with fewer columns mapped. E.g If I have a Contact Table which has 50 Columns and in few of the related entities I might be interested in FirstName and LastName property is it a good idea to create a lightweight version of Contact table. E.g. public class ContactLite { public int Id {get; set;} public string FirstName {get; set;} public string LastName {get; set;} } Also is it possible to map multiple classes to same table?

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  • Folder.Bind - "Id is malformed" - Exchange Web Services Managed API

    - by Michael Shimmins
    I'm passing the Folder.Id.UniqueId property of a folder retrieved from a FindFolders query via the query string to another page. On this second page I want to use that UniqueId to bind to the folder to list its mail items: string parentFolderId = Request.QueryString["id"]; ... Folder parentFolder = Folder.Bind(exchangeService, parentFolderId); // do something with parent folder When I run this code it throws an exception telling me the Id is manlformed. I thought maybe it needs to be wrapped in a FolderId object: Folder parentFolder = Folder.Bind(exchangeService, new FolderId(parentFolderId)); Same issue. I've been searching for a while, and have found some suggestions about Base64/UTF8 conversion, but again that did not solve the problem. Anyone know how to bind to a folder with a given unique id?

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  • linq to sql -> join

    - by ile
    SQL query: SELECT ArticleCategories.Title AS Category, Articles.Title, Articles.[Content], Articles.Date FROM ArticleCategories INNER JOIN Articles ON ArticleCategories.CategoryID = Articles.CategoryID Object repository: public class ArticleRepository { private DB db = new DB(); // // Query Methods public IQueryable<Article> FindAllArticles() { var result = from category in db.ArticleCategories join article in db.Articles on category.CategoryID equals article.CategoryID select new { CategoryID = category.CategoryID, CategoryTitle = category.Title, ArticleID = article.ArticleID, ArticleTitle = article.Title, ArticleDate = article.Date, ArticleContent = article.Content }; return result; } .... } And finally, I get this error: Error 1 Cannot implicitly convert type 'System.Linq.IQueryable' to 'System.Linq.IQueryable'. An explicit conversion exists (are you missing a cast?) C:\Documents and Settings\ilija\My Documents\Visual Studio 2008\Projects\CMS\CMS\Models\ArticleRepository.cs 29 20 CMS Any idea what did I do wrong? Thanks, Ile

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  • Problem using ‘useLegacyV2RuntimeActivationPolicy’ & supportedRuntime in an application

    - by Notre
    Hello, I've modified a couple of different applications' .config file like this: <startup useLegacyV2RuntimeActivationPolicy="true"> <supportedRuntime version="v4.0"/> </startup> When I did this for devenv.exe.config (VS 2005 - don't ask :) ), things work great - most of the Visual Studio used .NET 2.0 but I was able to make use of an assembly targeting .NET 4.0 framework. I tried to do the same thing for a custom .exe, which happens to be based on MS CAB (slightly modified) and has a hybrid mix of WPF and WinForms content. As soon as I modified this application's app config file, I started getting this exception, sometime during application startup: The Undo operation encountered a context that is different from what was applied in the corresponding Set operation. The possible cause is that a context was Set on the thread and not reverted(undone). System.InvalidOperationException: The Undo operation encountered a context that is different from what was applied in the corresponding Set operation. The possible cause is that a context was Set on the thread and not reverted(undone). There's a big long stack trace that doesn't show anything in my application code directly (just a bunch of MS assemblies). If I modify the application's .config file to this: <startup useLegacyV2RuntimeActivationPolicy="true"> </startup> i.e.I remove the supportedRuntime element, then the application doesn't throw this exception. But when I go to the point in my code where I try to load my .NET 4 assembly, if fails with this: System.BadImageFormatException: Could not load file or assembly '' or one of its dependencies. This assembly is built by a runtime newer than the currently loaded runtime and cannot be loaded. I guess this is expected. I have two questions: 1) Any idea why I'm getting the System.InvalidOperationException exception when I modify this application's configuration file to include the supportedRuntime element, adding .NET 4 support and any suggestions on what I can do about it? 2) If the answer is "no idea why/don't know what you can do about it", then is possible for my .NET 3.5 SP1 code (C#) to provide more fine grain support for conditionally adding .NET 4 runtime support for a certain assembly(ies) without converting my entire application to target .NET 4, or without using the declarative config file approach? At some point I would convert the entire application to target .NET 4, but for the short term this is daunting task and I'm hope for some short term solution/hack. Thank you very much for any advice you can give!

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  • VB.NET DownloadDataAsync:

    - by Brett
    Hi everybody, I am having the worst trouble getting around a bug, and am hoping that I can get some advice on this site. In short, I am trying to make an asynchronous web service call from my VB.NET application. But my "client_DownloadDataCompleted" callback is NEVER being called when the download is complete. Here is my complete code: Public Sub BeginAsyncDownload(ByVal Url As String) Dim waiter As System.Threading.AutoResetEvent = New System.Threading.AutoResetEvent(False) Dim client As WebClient = New WebClient() 'client_DownloadDataCompleted method gets called when the download completes. AddHandler client.DownloadDataCompleted, AddressOf client_DownloadDataCompleted Dim uri As Uri = New Uri(Url) Downloading = True 'Class variable defined elsewhere client.DownloadDataAsync(uri, waiter) End Sub Private Sub client_DownloadDataCompleted(ByVal sender As Object, ByVal e As AsyncCompletedEventArgs) MessageBox.Show("Download Completed") Downloading = False Debug.Print("Downloaded") End Sub Again, the client_DownloadDataCompleted method is never being called. I have also tried using the method: Private Sub client_DownloadDataCompleted(ByVal sender As Object, ByVal e As DownloadDataCompletedEventArgs) With no luck. What I really need is that "Downloading" variable to be switched off when the download is complete. Thanks in advance! Brett

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  • Ant Copy Task: Failed to copy due to java.io.FileNotFoundException

    - by rfkrocktk
    I'm trying to compile a Flex application in Ant (no problems here, I can do it fine). When I try to publish the contents of the project to a Windows network drive (known as "Z:\" on my system), I get the following LAME exception thrown by Java/Ant: BUILD FAILED C:\workspace\bkeller\build.xml:42: Failed to copy C:\workspace\bkeller\web\assets\text\biography.html to Z:\web\bkeller\assets\text\biography.html due to java.io.FileNotFoundException Z:\web\bkeller\assets\text\biography.html (The system cannot find the file specified) Which kind of sucks. I can't find any way to get rid of this problem and it's pretty crucial to my project that I get this working. I know for sure that I have read/write/execute permissions on the network drive, I can create/edit/delete files on the drive just fine through Windows explorer. Drive Z is a network mount to virtualbox, allowing me to get access to my host OS, Ubuntu. I've double checked that it has write permissions. Any ideas?

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  • asp.net RenderControl and html

    - by kusanagi
    i use such code protected override void Render(System.Web.UI.HtmlTextWriter writer) { writer.AddAttribute("class", "dd0"); if (!String.IsNullOrEmpty(this.LiLeftMargin)) { writer.AddAttribute("style", string.Format("margin-left: {0}px", this.LiLeftMargin)); } writer.RenderBeginTag("li"); writer.AddAttribute("id", "dt1"); writer.RenderBeginTag("div"); writer.AddAttribute("class", "ddlink"); this.HyperLink.RenderControl(writer);//i wand that render html <b>name</b> writer.RenderEndTag(); writer.RenderEndTag(); } my HyperLink name contain html tags, like <b>name</b> but it render like this &lt;B&gt;name how can i make text bold (tagn not ekraned)

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  • get contact info from android contact picker

    - by ng93
    hi im trying to call the contact picker, get the persons name, phone and e-mail into strings and send them to another activity using an intent. So far this works Intent intent = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI); startActivityForResult(intent, 1); @Override public void onActivityResult(int reqCode, int resultCode, Intent data) { super.onActivityResult(reqCode, resultCode, data); if (resultCode == Activity.RESULT_OK) { Uri contactData = data.getData(); Cursor c = managedQuery(contactData, null, null, null, null); if (c.moveToFirst()) { String name = c.getString(c.getColumnIndexOrThrow(ContactsContract.Contacts.DISPLAY_NAME)); Intent intent = new Intent(CurrentActivity.this, NewActivity.class); intent.putExtra("name", name); startActivityForResult(intent, 0); } } } but if i add in: String number = c.getString(c.getColumnIndexOrThrow(ContactsContract.CommonDataKinds.Phone.NUMBER)); it force closes maybe theres another way to get their number? thanks for help, ng93

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  • XSS attack to bypass htmlspecialchars() function in value attribute

    - by Setzer
    Let's say we have this form, and the possible part for a user to inject malicious code is this below ... <input type=text name=username value=<?php echo htmlspecialchars($_POST['username']); ? ... We can't simply put a tag, or a javascript:alert(); call, because value will be interpreted as a string, and htmlspecialchars filters out the <,,',", so We can't close off the value with quotations. We can use String.fromCode(.....) to get around the quotes, but I still unable to get a simple alert box to pop up. Any ideas?

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  • WPF: Apply ScrollBar Style to ListBox Template - Error object cannot be added to border

    - by TheMar
    Hi, I thought this may be straightforward question but did not find any definitive answer while searching net or SO. I have created scrollbar style (using standard scroll bard template - Blend 2) I am not sure how to apply this style "MyScrollStyle" to a ListBox Template . I saw on ListBox template they have Scroll Viewer -- which should contain the scrollbar Assuming it is something simple as ---Content Added--- After going through lot of xaml in template edit I kind of understood how to apply style. I am trying to add the scroll view style set in this example -http://blog.xamltemplates.net/wp-content/uploads/2008/12/scrollviewer.zip, to my list view template but it gives error -- System.Windows.Markup.XamlParseException was unhandled Message="'ScrollViewer' object cannot be added to 'Border'. Exception has been thrown by the target of an invocation. Error at object 'System.Windows.Controls.ScrollViewer' in markup file 'MenuModule, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null;component/resources/Resources.xaml' Line 19 Position 26." Source="PresentationFramework" LineNumber=19 LinePosition=26 NameContext="1_T" Any help is appreciated Thank you, The Mar

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  • help setting up wsHttpBinding WCF service on .net

    - by manu1001
    I'm trying to host a WCF service with wsHttpBinding. I created a certificate using makecert and put some lines in web.config. This is the error that I'm getting: System.ArgumentException: The certificate 'CN=WCfServer' must have a private key that is capable of key exchange. The process must have access rights for the private key. On googling up it seems to be some issue with access rights on the certificate file. I used cacls to give read permission to NETWORK SERVICE and also my username but it didn't change anything. I also went to security settings in the properties of the certificate file and gave full control to NETWORK SERVICE and my username. Again to no avail. Can you guide me as to what the problem is and what exactly I need to do? I'm really flaky with these certificate things. Here's my web.config: <system.serviceModel> <services> <service name="Abc.Service" behaviorConfiguration="Abc.ServiceBehavior"> <endpoint address="" binding="wsHttpBinding" bindingConfiguration="Abc.BindConfig" contract="Abc.IService"> <identity> <dns value="localhost"/> </identity> </endpoint> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange"/> </service> </services> <behaviors> <serviceBehaviors> <behavior name="Abc.ServiceBehavior"> <serviceMetadata httpGetEnabled="true"/> <serviceDebug includeExceptionDetailInFaults="false"/> <serviceCredentials> <clientCertificate> <authentication certificateValidationMode="PeerTrust"/> </clientCertificate> <serviceCertificate findValue="WCfServer" storeLocation="CurrentUser" storeName="My" x509FindType="FindBySubjectName" /> </serviceCredentials> </behavior> </serviceBehaviors> </behaviors> <bindings> <wsHttpBinding> <binding name="Abc.BindConfig"> <security mode="Message"> <message clientCredentialType="Certificate" /> </security> </binding> </wsHttpBinding> </bindings> </system.serviceModel>

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  • Validation does not work when I use Validator.TryValidateObject.

    - by ashraf
    DataAnnotations does not work with buddy class. The following code always validate true. Why ? var isValid = Validator.TryValidateObject(new Customer(), Context, results, true); and here is the buddy class. public partial class Customer { public string Name { get; set; } public int Age { get; set; } } [MetadataType(typeof(CustomerMetaData))] public partial class Customer { public class CustomerMetaData { [Required(ErrorMessage = "You must supply a name for a customer.")] public string Name { get; set; } } } Here is another thread with same question., but no answer. link text

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  • WPF: How do I debug binding errors?

    - by Jonathan Allen
    I'm getting this in my output Window: System.Windows.Data Error: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='System.Windows.Controls.ItemsControl', AncestorLevel='1''. BindingExpression:Path=VerticalContentAlignment; DataItem=null; target element is 'ListBoxItem' (Name=''); target property is 'VerticalContentAlignment' (type 'VerticalAlignment') This is my XAML, which when run looks correct <GroupBox Header="Grant/Deny Report"> <ListBox ItemsSource="{Binding Converter={StaticResource MethodBinder}, ConverterParameter=GrantDeny, Mode=OneWay}"> <ListBox.ItemTemplate> <DataTemplate> <StackPanel Orientation="Horizontal"> <Label Content="{Binding Entity}"/> <Label Content="{Binding HasPermission}"/> </StackPanel> </DataTemplate> </ListBox.ItemTemplate> </ListBox> </GroupBox>

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  • IOException reading a large file from a UNC path into a byte array using .NET

    - by Matt
    I am using the following code to attempt to read a large file (280Mb) into a byte array from a UNC path public void ReadWholeArray(string fileName, byte[] data) { int offset = 0; int remaining = data.Length; log.Debug("ReadWholeArray"); FileStream stream = new FileStream(fileName, FileMode.Open, FileAccess.Read); while (remaining > 0) { int read = stream.Read(data, offset, remaining); if (read <= 0) throw new EndOfStreamException (String.Format("End of stream reached with {0} bytes left to read", remaining)); remaining -= read; offset += read; } } This is blowing up with the following error. System.IO.IOException: Insufficient system resources exist to complete the requested If I run this using a local path it works fine, in my test case the UNC path is actually pointing to the local box. Any thoughts what is going on here ?

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