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  • .NET XML serialization

    - by ShdNx
    I would like to serialize and deserialize mixed data into XML. After some searches I found out that there were two ways of doing it: System.Runtime.Serialization.Formatters.Soap.SoapFormatter and System.Xml.Serialization.XmlSerializer. However, neither turned out to match my requirements, since: SoapFormatter doesn't support serialization of generic types XmlSerializer refuses to serialize types that implement IDictionary, not to mention that it's far less easy-to-use than "normal" serialization (e.g. see this SO question) I'm wondering if there exists an implementation that doesn't have these limitations? I have found attempts (for example CustomXmlSerializer and YAXLib as suggested in a related SO question), but they don't seem to work either. I was thinking about writing such serializer myself (though it certainly doesn't seem to be a very easy task), but then I find myself limited by the CLR, as I cannot create object instances of types that won't have a paramaterless constructor, even if I'm using reflection. I recall having read somewhere that implementations in System.Runtime.Serialization somehow bypass the normal object creation mechanism when deserializing objects, though I'm not sure. Any hints of how could this be done? Could somebody please point me to the right direction with this?

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  • Anything new for WinForms in .NET 4.0

    - by Robert
    I could not find any information about new WinForm features, exept for this blog post: http://blog.codinglight.com/2009/05/future-of-winforms-whats-changed-in.html which states: 213 types were changed, and 9 types were added. 596 methods were changed, 50 were added, and 8 were removed. So whats in these changes, for joe developer?

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  • Entity framework entity class mapping with plain .net class

    - by Elan
    I have following in entity framework Table - Country Fields List item Country_ID Dialing_Code ISO_Alpha2 ISO_Alpha3 ISO_Full I would like to map only selected fields from this entity model to my domain class. My domain model class is public class DomainCountry { public int Country_ID { get; set; } public string Dialing_Code { get; set; } public string ISO_3166_1_Alpha_2 { get; set; } } The following will work however insert or update is not possible. In order to get insert or update we need to use ObjectSet< but it will not support in my case. IQueryable<DomainCountry> countries = context.Countries.Select( c => new DomainCountry { Country_ID = c.Country_Id, Dialing_Code = c.Dialing_Code, ISO_3166_1_Alpha_2 = c.ISO_3166_1_Alpha_2 }); It will be really fantastic could someone provide a nice solution for this. Ideally it will be kind of proxy class which will support all the futures however highly customizable i.e. only the columns we want to expose to the outer world

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  • .NET StandardInput Sending Modifiers

    - by Paul Oakham
    We have some legacy software which depends on sending keystrokes to a DOS window and then scraping the screen. I am trying to re-create the software by redirecting the input and output streams of the process directly to my application. This part I have managed fine using: _Process = new Process(); { _Process.StartInfo.FileName = APPLICATION; _Process.StartInfo.RedirectStandardOutput = true; _Process.StartInfo.RedirectStandardInput = true; _Process.StartInfo.RedirectStandardError = true; _Process.StartInfo.UseShellExecute = false; _Process.StartInfo.CreateNoWindow = true; _Process.OutputDataReceived += new DataReceivedEventHandler(_Process_OutputDataReceived); _Process.ErrorDataReceived += new DataReceivedEventHandler(_Process_ErrorDataReceived); } My problem is I need to send some command modifiers such as Ctrl, ALT and Space as well as F1-12 to this process but am unsure how. I can send basic text and I receive response's fine. I just need to emulate these modifiers.

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  • Huge dataset point in polygon in .net (collision detection)

    - by Rickard Liljeberg
    I have a pretty big mesh with polygons, usually triangles but sometimes rectangles. Each point in my mesh has a value (value has nothing to do with coordinates). Now I am creating a second mesh in the same coordinate-space as the old mesh. I now want to interpolate out values for all points (vertices) in the new mesh using the values from the old mesh. Now I could loop each polygon in the new mesh and detect which old vertices are in each polygon by making 2d collision detection (altho even this I don't get to function properly so if anyone has simple and fast code for 2d collision detection (triangle is enough) I would gladly see it). However to my main point again. looping each old vertice for each new polygon seems less than efficient. is there a better way?

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  • Proper usage (best practices) of Browsable attribute in .NET for runtime grid component behavior

    - by Dan
    I understand how Browsable attribute is supposed to work. It's supposed to hide a property from showing up in a PropertyGrid in design time. It also has another effect in that it will stop a Property from showing up in components such as Grids, or specifically Infragistics WinGrid. I am not sure if it has this behaviour on regular Windows Forms grids. This works, but it doesn't sound like Browsable is being use as intended when being used for 'Run time' displaying of a property on a grid component. Any literature from Microsoft on proper use. Even though it works, I don't want to use this attribute to hide columns on a grid bound to a business object if it's not indeed the correct usage of the attribute, but rather something some grid vendors decided to use to determine property visibility on their grids.

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  • VB.net Saving an MetaFile / EMF as a bitmap ( .tiff)

    - by pehaada
    Currently I have a third party control that generates a Metafile. I can save the .wmf file to disk with out issue. The problem is how do I render the Metafile as a Tiff file. Currently I have the following code to get my metafile and save it. Dim mf As Metafile = page.GetImage(TXTextControl.Page.PageContent.All) Dim enhMetafileHandle As IntPtr = mf.GetHenhmetafile() Dim h As IntPtr Dim bufferSize As UInteger = GetEnhMetaFileBits(enhMetafileHandle, 0, h) Dim buffer(CInt(bufferSize)) As Byte GetEnhMetaFileBits(enhMetafileHandle, bufferSize, buffer) Dim msMetafileStream As New MemoryStream msMetafileStream.Write(buffer, 0, CInt(bufferSize)) Dim baMetafileData() As Byte baMetafileData = msMetafileStream.ToArray Dim g As Graphics = Graphics.FromImage(mf) mf.Dispose() File.WriteAllBytes("c:\a.wmf", baMetafileData) end sub _ Public Shared Function GetEnhMetaFileBits( ByVal hEMF As System.IntPtr, ByVal nSize As UInteger, ByVal lpData As IntPtr) As UInteger End Function <System.Runtime.InteropServices.DllImportAttribute("gdi32.dll", EntryPoint:="GetEnhMetaFileBits")> _ Public Shared Function GetEnhMetaFileBits(<System.Runtime.InteropServices.InAttribute()> ByVal hEMF As System.IntPtr, ByVal nSize As UInteger, ByVal lpData() As Byte) As UInteger End Function I've tried all sort of IMAGE and Graphic calls and just can't save the meta file as a .tiff. Any suggestions would be great. I even tried to create a new bitmap and draw the metafile onto it. I always end up with a GDI exception being thrown.

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  • Crystal reports .net visual studio 2008 bundled edition

    - by DeveloperChris
    I have a serious issue with crystal reports. when run in my development environment or debugged on my local machine it works fine. but when the application is published to a windows server 2003 it has the dreaded "The report you requested requires further information" Message I have had no luck trying to get rid of this message Anybody know what I can try? DC Here is a bunch more info. I use a placeholder in the aspx page and then set the user/password and database in the codebehind I could not get it to work with a dataset and found that I had to assign odbc connection in the cr designer. and then in the code behind change the above details as required. This is done because the same report can get the data from 3 different databases (live development and training) protected override void Page_Load(object sender, EventArgs e) { base.Page_Load(sender, e); CrystalReportSource1.ReportDocument.Load(Server.MapPath(@"~/Reports/Report5asp.rpt")); CrystalReportViewer1.ReportSource = ConfigureCrystalReports(CrystalReportSource1.ReportDocument,CrystalReportViewer1); // parameters CrystalReportViewer1.ParameterFieldInfo.Clear(); AddParameter("DIid", _app.Data["DIid"], CrystalReportViewer1.ParameterFieldInfo); AddParameter("EEid", _app.Data["EEid"], CrystalReportViewer1.ParameterFieldInfo); AddParameter("CTid", _app.Data["CTid"], CrystalReportViewer1.ParameterFieldInfo); } public ReportDocument ConfigureCrystalReports(ReportDocument report, CrystalReportViewer viewer) { String _connectionString = _app.ConnectionString(); String dsn = _app.DSN(); SqlConnectionStringBuilder SConn = new SqlConnectionStringBuilder(_connectionString); TableLogOnInfos crtableLogoninfos = new TableLogOnInfos(); TableLogOnInfo crtableLogoninfo = new TableLogOnInfo(); ConnectionInfo crConnectionInfo = new ConnectionInfo(); crConnectionInfo.ServerName = dsn;// SConn.DataSource; crConnectionInfo.DatabaseName = SConn.InitialCatalog; crConnectionInfo.UserID = SConn.UserID; crConnectionInfo.Password = SConn.Password; crConnectionInfo.Type = ConnectionInfoType.SQL; crConnectionInfo.IntegratedSecurity = false; foreach (CrystalDecisions.CrystalReports.Engine.Table CrTable in report.Database.Tables) { crtableLogoninfo = CrTable.LogOnInfo; crtableLogoninfo.ConnectionInfo = crConnectionInfo; CrTable.ApplyLogOnInfo(crtableLogoninfo); } return report; } As stated this works fine on my XP machine used for development when deployed on winserver 2003 I get the error DC Some interesting additional information I moved the development to my home machine so I could work on the problem this weekend. So now I am developing debugging and testing on the same machine! In VS2008 I can edit and preview the reports with no problems If I fire up the debugger I can view the reports in the browser with no problems But if I publish the website to another folder on the same machine and fire up IIS and try to browse to a report I get the aforementioned error. All else works as expected. IIS runs under different permissions than VS2008 so perhaps its something to do with that, but I have tried lots of different permissions and cannot get it to run. DC

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  • .net byte[] to List<List<Point>>

    - by user1112111
    Is is possible to convert a byte array back to a List<List<Point>> ? LE: I am saving the List<List<Point>> in a database BLOB field. When I retrieve it, I want to convert it back to a List<List<Point>>. So I have the byte[], but I cannot figure out how to convert it. How should the de/serialization look like ?

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  • .Net application settings path

    - by Anton
    By default in windows application setting are saved in this directory: %USERPROFILE%\Local Settings\Application Data\<Company Name>\<appdomainname>_<eid>_<hash>\<verison>\user.config Is it possible to change path for saving user.config file? For example save it in local folder?

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  • .NET Setting a cookie in a WebBrowser control

    - by ty
    I am loading a website using a WebBrowser's Navigate function, and I want the browser to load the page with a cookie I've given it. The following code doesn't work: wb.Navigate(url, null, null, "Cookie: " + cookie + "\n"); What am I doing wrong? Will I have to use InternetSetCookie? This doesn't seem like the best solution. Thanks!

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  • .NET Debugging - System.Threading.ExecutionContext.runTryCode

    - by moogs
    We have this bug that only appears 30% of the time for the Release build. Opening the crash dump in WinDbg (snipped "!analyze -v" output): FAULTING_IP: +4 00000000`00000004 ?? ??? EXCEPTION_RECORD: ffffffffffffffff -- (.exr 0xffffffffffffffff) ExceptionAddress: 0000000000000004 ExceptionCode: c0000005 (Access violation) ExceptionFlags: 00000000 NumberParameters: 2 Parameter[0]: 0000000000000008 Parameter[1]: 0000000000000004 Attempt to execute non-executable address 0000000000000004 ERROR_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%08lx referenced memory at 0x%08lx. The memory could not be %s. WRITE_ADDRESS: 0000000000000004 MANAGED_STACK: (TransitionMU) 0000000024B9E370 000007FEEDA1DD38 mscorlib_ni!System.Threading.ExecutionContext.runTryCode(System.Object)+0x178 (TransitionUM) (TransitionMU) 0000000024B9DFB0 000007FF00439010 MyLibrary!DocInfo.IsStatusOK()+0x30 Now, IsStatusOK() just calls PrintSystemJobInfo.Get(), but that doesn't seem to even appear in the stack. Any ideas on how to debug this? I'm sure runTryCode() is really not the problem...but..I'm stuck. Thanks! (I'm really groping here).

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  • C# .NET 4.0 and Generics

    - by Mr Snuffle
    I was wondering if anyone could tell me if this kind of behaviour is possible in C# 4.0 I have an object hierarchy I'd like to keep strongly typed. Something like this class ItemBase {} class ItemType<T> where T : ItemBase { T Base { get; set; } } class EquipmentBase : ItemBase {} class EquipmentType : ItemType<EquipmentBase> {} What I want to be able to do to have something like this ItemType item = new EquipmentType(); And I want item.Base to return type ItemBase. Basically I want to know if it's smart enough to strongly typed generic to a base class without the strong typing. Benefit of this being I can simply cast an ItemType back to an EquipmentType and get all the strongly typedness again. I may be thinking about this all wrong...

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  • Why don't the .net 4.0 charting controls work in Visual Studio 2010?

    - by kc
    The .net charting controls are advertised as being built into .net 4.0. However, they do not work in Visual Studio 2010 Pro or Visual Web Developer 2010 Express. I get the error, System.Web.HttpException: Error executing child request for ChartImg.axd. That sounds like the message from .net 3.5 if charting wasn't set up correctly. But the bottom of the same page says, "Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1" Does anyone know why this doesn't work?

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  • How can I access an ASP.Net 2.0 web service using VB Script?

    - by Steve Hiner
    I'm trying to find a way to access a web service from a VB Script .vbs file running under wscript.exe. I pulled some sample code from Microsoft but it gives me an error. Dim SOAPClient, Response Set SOAPClient = createobject("MSSOAP.SOAPClient") SOAPClient.mssoapinit("https://www.domain.com/Folder/Service.asmx?WSDL") On that last line I get an error message: WSDLReader: No valid schema specification was found. This version of the SOAP Toolkit only supports 1999 and 2000 XSD schema specifications After getting that message I installed the SOAP 3.0 SDK to make sure I have the most recent version (since it's now deprecated for .Net) but I still get the same error. The reason it needs to be in VB Script is because it's going to be used in a program over which I have no control and it only supports VB Script. Is there a way to get VB Script to be able to parse a newer WSDL file? I do have the source code for the web service. Is there something I can change in the web service to make it schema compatible with the SOAP toolkit?

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  • dotnetopenauth with asp.net mvc proving too frustrating to use.

    - by Stacey
    I've been trying excessively hard to implement a good open id solution into asp.net mvc - and everywhere I turn is absolute dead ends. DotNetOpenAuth is just too big and I have been thusfar unable to get even the most simplistic, basic, absolute cut and dry implementation of it to work. NerdDinner had a promising implementation, but it is impossible to track down all of the dependant files and scripts. The DotNetOpenAuth website has virtually no information that helps, either, unfortunately. Does ANYONE know of a simple approach to just implementing this that actually explains and details how it is working with some kind of selector? It is talked about so much, but everything I find for it is so difficult to work with that it is really putting my whole team off from even considering it. We want to implement it similar to how stack overflow already does - using a selector that'll popup a login page if it needs to. I realize there is a lot of code that needs to be done for this, but everything just hails and praises dotnetopenauth, and nothing really teaches it. Even the sample projects do not open or compile. It looks like a wonderful library - but it really just isn't clicking for me.

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  • What is a NullReferenceException in .NET?

    - by John Saunders
    (I'm creating this separate question and answer because every question we get on NullReferenceException is really the same) I have some code and when it executes, it throws a NullReferenceException, saying, "Object reference not set to an instance of an object.". What does this mean, and what can I do about it? Note again, that this is a question meant to focus answers to the canonical "what is a NullReferenceException and why did I get one" question. I do know what a NullReferenceException is, as my answer below demonstrates.

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