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  • ASP.NET web forms as ASP.NET MVC

    - by lopkiju
    I am sorry for possible misleading about the title, but I have no idea for a proper title. Feel free to edit. Anyway, I am using ASP.NET Web Forms, and maybe this isn't how web forms is intended to be used, but I like to construct and populate HTML elements manually. It gives me more control. I don't use DataBinding and that kind of stuff. I use SqlConnection, SqlCommand and SqlDataReader, set SQL string etc. and read the data from the DataReader. Old school if you like. :) I do create WebControls so that I don't have to copy-paste every time I need some control, but mostly, I need WebControls to render as HTML so I can append that HTML into some other function that renders the final output with the control inside. I know I can render a control with control.RenderControl(writer), but this can only be done in (pre)Render or RenderContents overrides. For example. I have a dal.cs file where is stored all static functions and voids that communicate with the database. Functions mostly return string so that it can be appended into some other function to render the final result. The reason I am doing like this is that I want to separate the coding from the HTML as much as I can so that I don't do <% while (dataReader.Read()) % in HTML and display the data. I moved this into a CodeBehind. I also use this functions to render in the HttpHandler for AJAX response. That works perfectly, but when I want to add a control (ASP.NET Server control (.cs extension, not .ascx)) I don't know how to do that, so I see my self writing the same control as function that returns string or another function inside that control that returns string and replaces a job that would RenderContents do, so that I can call that function when I need control to be appended into a another string. I know this may not be a very good practice. As I see all the tutorials/videos about the ASP.NET MVC, I think it suite my needs as with the MVC you have to construct everything (or most of it) by your self, which I am already doing right now with web forms. After this long intro, I want to ask how can I build my controls so I can use them as I mentioned (return string) or I have to forget about server controls and build the controls as functions and used them that way? Is that even possible with ASP.NET Server Controls (.cs extension) or am I right when I said that I am not using it right. To be clear, I am talking about how to properly use a web forms, but to avoid data binders because I want to construct everything by my self (render HTML in Code Behind). Someone might think that I am appending strings like "some " + "string", which I am not. I am using StringBuilder for that so there's no slowness. Every opinion is welcome.

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  • How to develop asp.net web service to create the web method which can take the parameter of type win

    - by Shailesh Jaiswal
    I am developing asp.net web service. I am developing this web service so that OPC ( OLE for process control) client application can use it. In this web service I am using the built-in functions provided by the namespaces using OPC, using OPCDA, using OPCDA.NET. I have also added the namespace using System.Windows.Forms in this web service so that I can use the windows form control. In that we service I have created on web method which takes the parameter of type windows form control as given below. public void getOPCServerItems(TreeView tvServerItems, ListView lvBranchItems) { ArrayList ArrlstObj = new ArrayList(); ItemShowTreeList = OpcSrv.ShowBrowseTreeList(tvServerItems, lvBranchItems); ItemShowTreeList.BrowseModeOneLevel = true; // browse hierachy levels when selected. (default) ItemShowTreeList.Show(OpcSrv.ServerName); } In the above web method I need to pass the values to the built-in function ShowBrowseTreeList() (found in OPC, OPCDA, OPCDA.NET namespaces). This function takes the two parameter of windows form control type. These parameters are Treeview & ListView control of the windows form. In the above web method ShowBrowseTreeList() method automatically create the treeview & listview structure of the available items. Now as I am consuming the web service so I need to pass the values to the webmethod getOPCServerItems(). But as I my consuming application is asp.net application there is no such windows form control. In asp.net application there are also & control. I want to display The data returned in these asp.net controls rather than windows form control. I am not getting the way what should I need to do or how should I pass the values form my client application to this web service ? In the above method getOPCServerItems() when I use the parameter of type treeview & listview it generate s error "Cannot serialize member System.ComponentModel.Component.Site of type System.ComponentModel.ISite because it is an interface.". Can you provide me the the way In which I can write the above web method & how should I pass parameter to the Treeview & Listview control (windows form control) from my asp.net application ? which controls I should use to pass parameters ? Is there any need to do any type of casting ? Can you provide me the the code for above web method so that I can resolve the above issue ?

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  • Are vb.net eventArgs maintained at a "system" level?

    - by GregH
    I have a custom developed control I am using that somebody else wrote. For some reason, when the control was written, they did not write an event handler for the "mouseDown" event so when I mouseDown on the control, no event is fired. What I am basically trying to do is capture which mouse button (left or right) is pressed when the control is clicked on. Is there any sort of system level objects that maintain system state (including which mouse buttons are currently being pressed regardless of the control being clicked upon?)

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  • Can a storyboard access the UserControl that it resides in?

    - by Jeremy
    I have a usercontrol, and I want a storyboard inside the user control to fade the user control out. Using Expression Blend, I can create the storyboard and cause it to fade the user control out, but when I run the silverlight application I get an error on FindControl stating that it can't find the control. I'm guessing the find control only searches the children of the parent, but does not look at the parent itself. Is there any way around this?

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  • WPF Binding Between Controls

    - by David Ward
    I have a control on a page that contains a listbox. I also have another control which is a detail view. Both of the controls have their own ViewModel which their child controls bind to. Image Outlook. It has a list of folders and when you select a folder the detail control displays the contents of the folder. How can I bind the detail control to the selected item in the list control?

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  • Multiple file upload with asp.net 4.5 and Visual Studio 2012

    - by Jalpesh P. Vadgama
    This post will be part of Visual Studio 2012 feature series. In earlier version of ASP.NET there is no way to upload multiple files at same time. We need to use third party control or we need to create custom control for that. But with asp.net 4.5 now its possible to upload multiple file with file upload control. With ASP.NET 4.5 version Microsoft has enhanced file upload control to support HTML5 multiple attribute. There is a property called ‘AllowedMultiple’ to support that attribute and with that you can easily upload the file. So what we are waiting for!! It’s time to create one example. On the default.aspx file I have written following. <asp:FileUpload ID="multipleFile" runat="server" AllowMultiple="true" /> <asp:Button ID="uploadFile" runat="server" Text="Upload files" onclick="uploadFile_Click"/> Here you can see that I have given file upload control id as multipleFile and I have set AllowMultiple file to true. I have also taken one button for uploading file.For this example I am going to upload file in images folder. As you can see I have also attached event handler for button’s click event. So it’s time to write server side code for this. Following code is for the server side. protected void uploadFile_Click(object sender, EventArgs e) { if (multipleFile.HasFiles) { foreach(HttpPostedFile uploadedFile in multipleFile.PostedFiles) { uploadedFile.SaveAs(System.IO.Path.Combine(Server.MapPath("~/Images/"),uploadedFile.FileName)); Response.Write("File uploaded successfully"); } } } Here in the above code you can see that I have checked whether multiple file upload control has multiple files or not and then I have save that in Images folder of web application. Once you run the application in browser it will look like following. I have selected two files. Once I have selected and clicked on upload file button it will give message like following. As you can see now it has successfully upload file and you can see in windows explorer like following. As you can see it’s very easy to upload multiple file in ASP.NET 4.5. Stay tuned for more. Till then happy programming. P.S.: This feature is only supported in browser who support HTML5 multiple file upload. For other browsers it will work like normal file upload control in asp.net.

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  • CCNet TFS Migration - Dealing with left over folders

    - by Michael Stephenson
    Im currently in the process of migrating our many BizTalk projects from MKS source control to TFS.  While we will be using TFS for work item tracking and source control etc we will be continuing to use Cruise Control for continuous integration although im updating this to CCNet 1.5 at the same time. Ill post a few things as much as a reminder to myself about some of the problems we come across. Problem After the first build of our code the next time a build is triggered an error is encountered by the TFS source control block refreshing the source code. System.IO.IOException: The directory is not empty.    at System.IO.Directory.DeleteHelper(String fullPath, String userPath, Boolean recursive)    at System.IO.Directory.Delete(String fullPath, String userPath, Boolean recursive)    at ThoughtWorks.CruiseControl.Core.Sourcecontrol.Vsts.deleteDirectory(String path)    at ThoughtWorks.CruiseControl.Core.Sourcecontrol.Vsts.GetSource(IIntegrationResult result)    at ThoughtWorks.CruiseControl.Core.IntegrationRunner.Build(IIntegrationResult result)    at ThoughtWorks.CruiseControl.Core.IntegrationRunner.Integrate(IntegrationRequest request) System.IO.IOException: The directory is not empty. at System.IO.Directory.DeleteHelper(String fullPath, String userPath, Boolean recursive) at System.IO.Directory.Delete(String fullPath, String userPath, Boolean recursive) at ThoughtWorks.CruiseControl.Core.Sourcecontrol.Vsts.deleteDirectory(String path) at ThoughtWorks.CruiseControl.Core.Sourcecontrol.Vsts.GetSource(IIntegrationResult result) at ThoughtWorks.CruiseControl.Core.IntegrationRunner.Build(IIntegrationResult result) at ThoughtWorks.CruiseControl.Core.IntegrationRunner.Integrate(IntegrationRequest request) Project: Bupa.BPI.Documents Date of build: 2011-01-28 14:54:21 Running time: 00:00:05 Integration Request: Build (ForceBuild) triggered from VMOPBZDEV11 Solution The problem seems to be with a folder called TestLocations which is created by the build process and used along with the file adapter as a way to get messages into BizTalk.  For some reason the source control block when it does a full refresh of the code does not get rid of this folder and then complains thats a problem and fails the build. Interestingly there are other folders created by the build which are deleted fine.  My assumption is that this if something to do with the file adapter polling the directory.  However note that we have not had this problem with other source control blocks in the past. To workaround this I have added a prebuild task to the ccnet.config file to delete this folder before the source control block is executed.  See below for example < prebuild> exec>executable>cmd.exe</executable>buildArgs>/c "if exist "C:\<MyCode>\TestLocations" rd /s /q "C:\<MyCode>\TestLocations""</buildArgs>exec> prebuild> < < < </ </

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  • Mostrar Imagenes en ListView utilizando ImageList WinForms

    - by Jason Ulloa
    El día de hoy veremos como trabajar con los controles ListView e Imagelist de WindowsForms para poder leer y mostrar una serie de imágenes. Antes de ello debo decir que pueden existir otras formas de mostrar imagenes que solo requieren un control por ejemplo con un Gridview pero eso será en otro post, ahora nos centraremos en la forma de realizarlo con los controles antes mencionados. Lo primero que haremos será crear un nuevo proyecto de windows forms, en mi caso utilizando C#, luego agregaremos un Control ImageList. Este control será el que utilicemos para almacenar todas las imágenes una vez que las hemos leído. Si revisamos el control, veremos que tenemos la opción de agregar la imágenes mediante el diseñador, es decir podemos seleccionarlas manualmente o bien agregarlas mediante código que será lo que haremos. Lo segundo será agregar un control ListView al Formulario, este será el encargado de mostrar las imagenes, eso sí, por ahora será solo mostrarlas no tendrá otras funcionalidades. Ahora, vamos al codeBehind y en el Evento Load del form empezaremos a codificar: Lo primero será, crear una nueva variable derivando DirectoryInfo, a la cual le indicaremos la ruta de nuestra carpeta de imágenes. En nuestro ejemplo utilizamos Application.StartUpPath para indicarle que vamos a buscar en nuestro mismo proyecto (en carpeta debug por el momento). DirectoryInfo dir = new DirectoryInfo(Application.StartupPath + @"\images");   Una vez que hemos creado la referencia a la ruta, utilizaremos un for para obtener todas la imágenes que se encuentren dentro del Folder que indicamos, para luego agregarlas al imagelist y empezar a crear nuestra nueva colección. foreach (FileInfo file in dir.GetFiles()) { try { this.imageList1.Images.Add(Image.FromFile(file.FullName)); }   catch { Console.WriteLine("No es un archivo de imagen"); } }   Una vez, que hemos llenado nuestro ImageList, entonces asignaremos al ListView sus propiedades, para definir la forma en que las imágenes se mostrarán. Un aspecto a tomar en cuenta acá será la propiedad ImageSize ya que está será la que definirá el tamaño que tendrán las imágenes en el ListView cuando sean mostradas. this.listView1.View = View.LargeIcon;   this.imageList1.ImageSize = new Size(120, 100);   this.listView1.LargeImageList = this.imageList1;   Por último y con ayuda de otro for vamos a recorrer cada uno de los elementos que ahora posee nuestro ImageList y lo agregaremos al ListView para mostrarlo for (int j = 0; j < this.imageList1.Images.Count; j++) { ListViewItem item = new ListViewItem();   item.ImageIndex = j;   this.listView1.Items.Add(item); } Como vemos, a pesar de que utilizamos dos controles distintos es realmente sencillo  mostrar la imagenes en el ListView al final el control ImageList, solo funciona como un “puente” que nos permite leer la imagenes para luego mostrarlas en otro control. Para terminar, los proyectos de ejemplo: C# VB

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  • How to pass string file path as HttpPostedfile to fileupload control?

    - by rahul
    Hi friends, I have got little tricky issue i.e I am using API of a product which has few methods for uploading image. The UI part of the product has one file upload control which takes files and convert that into binary and save it to database. In the coding part they are using one method where they send this fileupload.postedfile as one of the input parameter to the method. Now my requirement is, I have a directory where there are hundred of files which i have to send each file one by after another to this method as a input. Now i wish to know how to pass a file name as "HttpPostedFile" to that method as a parameter. I have no other option other than using that API (our clients requirement). Thanks

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  • Invoke or BeginInvoke cannot be called on a control until the window handle has been created.

    - by blade3
    Hi I am trying to install SQL Server 2008 Developer Edition x64 on a Windows Server 2008 VM. I run the installer for a standalone installation and this works fine for the setup support rules bit. That passes ok but then I get this error: TITLE: SQL Server Setup failure. SQL Server Setup has encountered the following error: Invoke or BeginInvoke cannot be called on a control until the window handle has been created.. BUTTONS: OK How can I resolve this? I am getting 2008 R2 CTP but this is just a CTP. My download is from DreamSpark. Thanks

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  • How to set access-control-allow-origin in webrick under rails?

    - by brad
    I have written a small rails app to serve up content to another site via xmlhttprequests that will be operating from another domain (it will not be possible to get them running on the same server). I understand I will need to set access-control-allow-origin on my rails server to allow the requesting web page to access this material. It seems fairly well documented how to do this with Apache and this is probably the server I will use once I deploy the site. While I am developing though I hope to just use webrick as I am used to doing with rails. Is there a way of configuring webrick to provide the appropriate http header within rails?

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  • Where can I find a nice .NET Tab Control for free?

    - by Nazgulled
    I'm doing this application in C# using the free Krypton Toolkit but the Krypton Navigator is a paid product which is rather expensive for me and this application is being developed on my free time and it will be available to the public for free. So, I'm looking for a free control to integrate better into my Krypton application because the default one doesn't quite fit and it will be different depending on the OS version... Any suggestions? P.S: I know I could owner-draw it but I'm trying not to have that kind of work... I prefer something already done if it exists for free. EDIT: I just found exactly what I wanted: http://www.angelonline.net/CodeSamples/Lib_3.5.0.zip

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  • Why is my asp:Substitution control suddenly not working in ASP.NET 4.0?

    - by Steve Wortham
    I just upgraded my site from ASP.NET 3.5 to 4.0. I've been working through some breaking changes and there were more than I expected. One I can't figure out, however, is why my <asp:Substitution /> control suddenly stopped working like it should. It's supposed to ignore the output cache settings of the parent page and update upon every request. For some reason that isn't happening. It's caching for the full 10 minutes (the OutputCache setting for my home page). Any ideas?

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  • How do build a composite or template control in ASP.Net MVC, or the equivelant?

    - by Jason Jackson
    In our current ASP.Net Webforms application we have several composite/template server controls that only exist for a common look and feel. For example, we have a panel control that has a title, a place for buttons related to the contents of the panel, and of course the contents. How is this best accomplished in MVC? RenderPartial doesn't get done what I need here. Should I still be using the same controls, but just on a view page? These controls don't really do anything on postback, they are only there for a common look and feel.

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  • Adjust a Control Template and still respect the Theme of the OS?

    - by bitbonk
    In WPF how do I modifiy the template for a standard control in a way that it will respect the current Theme of the Operating System later on? If I just "edit a copy" of the template in blend, it will just give me the template of the currently running theme. Is this correct? So when I apply the modified template and run the app on different themes it will always look the same. For custom controls and even for data templates the problem is similar. How do I provide a template that respects all possible themes of the OS?

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  • Asp.net HttpWebResponse - how can I not depend on WebException for flow control?

    - by Campos
    I need to check whether the request will return a 500 Server Internal Error or not (so getting the error is expected). I'm doing this: HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest; request.Method = "GET"; HttpWebResponse response = request.GetResponse() as HttpWebResponse; if (response.StatusCode == HttpStatusCode.OK) return true; else return false; But when I get the 500 Internal Server Error, a WebException is thrown, and I don't want to depend on it to control the application flow - how can this be done?

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  • Intellij Idea 9, what folders to check into (or not check into) source control?

    - by Benju
    Our team has just moved from Netbeans to Intellij 9 Ultimate and need to know what files/folders should typically be excluded from source control as they are not "workstation portable" ie: they reference paths that only exist on one user's computer. As far as I can tell Intellij wants to ignore most of the .idea project including .idea/artifacts/* .idea/inspectionProfiles/* .idea/copyright/* .idea/dataSources.ids .idea/dataSources.xml .idea/workspace.xml However it seems to want to check in the .iml files that exist in each module's root directory. I originally checked in the entire .idea directory via the command line which is obviously not aware of what "should" be ignored by Idea. Is the entire .idea directory typically ignored?

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  • Where can I find free WPF controls and control templates?

    - by Geoffrey Chetwood
    Duplicate: Where can I find free WPF controls and control templates? I am looking for some recommendations on good places to find libraries of controls/templates/styles for WPF. I know about the usual places like Infragistics, but it seems to me that there should be some kind of community effort by now to share nice, clean, well written controls for WPF controls. I am not big on the design side, and it would be nice to fill out my personal libraries with some nice examples from people who are better at design. Any ideas/recommendations?

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  • How can I use data binding in WPF to create a new user control for each element in a list?

    - by Joel
    I have a list of objects. For each item in the list, I want to create a new user control bound to that item. From what I've read, doing this programmatically is bad practice with WPF (as well as less than straightforward), so I should use data binding as a solution instead. The problem is, I can't figure out how to do this. I don't know the contents of the list (just the type) at compile-time, so I can't create and bind with XAML for each element. Google and MSDN don't seem to have any answers, so maybe I'm thinking about this the wrong way? What do I need to do? Thanks

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  • Disabling screen saver programatically doesn't affect the control panel?

    - by shoosh
    I've successfully disabled the screensaver using the method described in this page. The problem is that when I do this, the control panel dialog still indicates that there is an active screensaver. Nothing seems to be changed there. If the user checks it, he has no way of knowing why the screen saver doesn't work. Is this the expected behavior? Isn't this a problem? I'm on windows XP x64 fully patched with the latest updates.

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  • What is the most Word-like ASP.NET custom control that you can buy?

    - by rtemp
    We are looking to implement a rich-text box in an ASP.NET application and our requirements are specific to using the "Track Changes" features of Microsoft Word. The closest thing we found in the RadEditor by Telerik. This is a nice control that has a "Track Changes" button and will give you the ability to track the changes from the text in the box to now. It does not let you track your changes from the two previous versions. We have used CVSWeb in the past and the display was not great but it did have the ability (in a web page) to diff two different versions of text (source code in this case). Does anyone have any experience or know of any web-based diff tools that work nicely with a rich-text editor in the web?

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  • Best practice to pass a value from pop over control on iPad.

    - by Tattat
    It is an iPad app based on SDK 3.2. I have a MainUIView, that is subclass from UIView, it have a UIButton and a UILabel. When user press the UIButton, the pop over control will be appeared with a table view. When the user select a cell from the table view, the UILabel changes content base on the user click, and the pop up table view will disappear. The question is, how can I pass the "selected cell" to the UILabel. I am thinking making a "middle man" object. When the user click the UIButton, and the "middle man" will pass to the table. When the cell is selected, the "middle man" will store the idx, and call the UILabel change content from the value of "middle man". But I think it is pretty complex to implement, is there any easier way to implement it? thz u.

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  • How do I stream videos from web server in ExpressionMediaPlayer control?

    - by Nick
    Hello. I would like to stream videos that reside at the webserver from within a ExpressionMediaPlayer control. The following results in a network error. I believe that the problem is with my Uri. I have the videos inside the 'ClentBin' folder. Can anyone tell me how this is done? private void videoList_SelectionChanged(object sender, SelectionChangedEventArgs e) { var selectedVideo = (Video)videoList.SelectedItem; PlaylistItem item = new PlaylistItem(); item.MediaSource = new Uri(@"/ClientBin/" + selectedVideo.FilePath, UriKind.RelativeOrAbsolute); item.IsAdaptiveStreaming = false; ep.Playlist.Items.Add(item); } Thanks!

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  • Finding the TextBlock that is part of the default control template ComboBox generated through code.

    - by uriya
    I'm trying to find the TextBlock that is inside the control template of a comboBox. using VisualTreeHelpar.GetChildrenCount is working only if the comboBox is declared in XAML.In that case GetChildrenCount returns 1 and a recursive search is possible. However, if I declare the combo as a member of the Window class using code, allocated and setting it to its place, the function GetChildrenCount return 0. When I run snoop in this scenario It shows the combo children hierarchy. I want to be able to search the comboBox just as snoop does. Any help would be appreciated. code: ComboBox mCombo = null; private void Windows_Loaded(object sender, RoutedEventArgs e) { mCombo = new ComboBox; mGrid.Children.Add(mCombo); Grid.SetRow(mCombo,0); int count = VisualTreeHelpar.GetChildrenCount(mCombo); }

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  • How can I enable Vista/Win 7 theming/style for a ToolTip control?

    - by Joakim Hårsman
    In Windows Vista and Windows 7, ToolTips have a new visual style or theme, they are shiny grey metallic. How can I enable the new style for a ToolTip control? Some controls, like ListViews and ToolBars, use the new tooltips automatically, but other tooltips are rendered with the old yellow XP style. I've tried sending an TTM_SETWINDOWTHEME message but nothing happens and I'm not sure what string I am supposed to use for the visual style name. SetWindowTheme doesn't work either, I've used it successfully on ListViews and TreeViews to set the "Explorer" style (see http://www.danielmoth.com/Blog/TreeViewVista.aspx), but that doesn't seem to work on ToolTips. I'm using the plain win32 C API.

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