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  • Comparing 2 objects and retrive a list of fields with different values

    - by ajj
    Hi given a class with 35 fields and 2 objects with a certain number of different fields value. is there an clever way to get a list with the fields name where the objext Say obj1.Name = "aaa"; obj1.LastName = "bbb"; obj1.Address = "xcs"; obj2.Name = "aaa"; obj2.LastName = "ccc"; obj2.Address = "jk"; objective: list containing 2 strings LastName and Address I see reflection as the way to go but with 35 fields I am afraid it s to heavy. Any other idea, like linq? Thanks, a.

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  • Closing any open info windows in google maps api v3

    - by hhj
    As the title states, on a given event (for me this happens to be upon opening a new google.maps.InfoWindow I want to be able to close any other currently open info windows. Right now, I can open many at a time..but I want only 1 open at a time. I am creating the info windows dynamically (i.e. I don't know ahead of time how many will be generated), so in the click event of the current info window (which is where I want all the other open ones closed) I don't have a reference to any of the other open info windows on which to call close(). I am wondering how I can achieve this. I am not an experienced JavaScript programmer so I don't know if I need to use reflection or something similar here. Would the best way be just to save all the references in some sort of collection, then loop through the list closing them all? Thanks.

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  • Looking for a C# code parser

    - by Blindy
    I'm looking for a set of classes (preferably in the .net framework) that will parse C# code and return a list of functions with parameters, classes with their methods, properties etc. Ideally it would provide all that's needed to build my own intellisense. I have a feeling something like this should be in the .net framework, given all the reflection stuff they offer, but if not then an open source alternative is good enough. What I'm trying to build is basically something like Snippet Compiler, but with a twist. I'm trying to figure out how to get the code dom first. I tried googling for this but I'm not sure what the correct term for this is so I came up empty.

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  • C# - Silverlight - Dynamically calling a method

    - by cmaduro
    Is there anyway in C# to call a method based on a Enum and/or class? Say if I were to call Controller<Actions.OnEdit, Customer>(customer); Could I do something like this then? public void Controller<TAction, TParam>(TParam object) { Action<TParam> action = FindLocalMethodName(TAction); action(object); } private Action<T> FindLocalMethodName(Enum method) { //Use reflection to find a metode with //the name corresponding to method.ToString() //which accepts a parameters type T. }

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  • Run a SQL Script Against MySQL using Powershell

    - by abarr
    I have a Powershell script that backs up my MySQL DB's each night using mysqldump. This all works fine but I would like to extend the script to update a reporting db (db1) from the backup of the prod db (db2). I have written the following test script but it does not work. I have a feeling the problem is the reading of the sql file to the CommandText but I am not sure how to debug. [system.reflection.assembly]::LoadWithPartialName("MySql.Data") $mysql_server = "localhost" $mysql_user = "root" $mysql_password = "password" write-host "Create coonection to db1" # Connect to MySQL database 'db1' $cn = New-Object -TypeName MySql.Data.MySqlClient.MySqlConnection $cn.ConnectionString = "SERVER=$mysql_server;DATABASE=db1;UID=$mysql_user;PWD=$mysql_password" $cn.Open() write-host "Running backup script against db1" # Run Update Script MySQL $cm = New-Object -TypeName MySql.Data.MySqlClient.MySqlCommand $sql = Get-Content C:\db2.sql $cm.Connection = $cn $cm.CommandText = $sql $cm.ExecuteReader() write-host "Closing Connection" $cn.Close() Any assistance would be appreciated. Thanks.

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  • Embed Icons into WPF Application as Resource

    - by rattrick1
    I am trying to embed an icon into my my WPF application so that I can pull it out for use as an icon in the Window 7 JumpList using the following code: newScene.IconResourcePath = System.Reflection.Assembly.GetEntryAssembly().Location; newScene.IconResourceIndex = 0; I've gotten it to work using the following method: http://dennisdel.com/?p=38 However, it doesn't seem like the best approach and it seems like there should be an easier way to embed an icon resource into my application while still leaving the "Icon and Manifest" option checked in the Application properties for my program. I've tried numerous methods including setting the icon build action as a resource and an embedded resource, but every time I open my .exe in a resource editor, the icon does not appear. Any suggestions?

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  • Does .NET have a linker?

    - by Water Cooler v2
    From Jon Skeet's blog: What does the following comment mean? // The line below only works when linked rather than // referenced, as otherwise you need a cast. // The compiler treats it as if it both takes and // returns a dynamic value. string value = com.MakeMeDynamic(10); I understand what referencing an assembly is. You may reference it when compiling the program files either using the /ref: switch at the command line or you may add a statically reference to the assembly in Visual Studio. But how do you link to an assembly in .NET? Does he mean, load the assembly using Reflection (Assembly.LoadFile())? Or, the Win32 API LoadLibrary()? Or, does .NET have a linker that I have never heard of?

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  • C# where keyword

    - by Carra
    Our Indian overseas developers have written the following piece of code (C# 2.0): public abstract class ObjectMapperBase<T> where T : new() { internal abstract bool UpdateObject(T plainObjectOrginal, T plainObjectNew, WebMethod fwm, IDbTransaction transaction); } Inheritor example: public abstract class OracleObjectMapperBase<T> : ObjectMapperBase<T> where T : new() { internal override bool UpdateObject(T plainObjectOrginal, T plainObjectNew, WebMethod fwm, IDbTransaction transaction) { //Fancy Reflection code } } I've never seen the where keyword before after the class name. What does this do?

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  • Java source code generation frameworks

    - by Superfilin
    I have a set of Java 5 source files with old-style Doclet tags, comments and annotations. And based on that I would like to write a generator for another set of Java classes. What is the best way to do that? And are there any good standalone libraries for code analysis/generation in Java? Any shared exprience in this field is appreciated. So, far I have found these: JaxME's Java Source Reflection - seems good, but it does not seem to support annotations. Also it had no release since 2006. Annogen - uses JDK's Doclet generator, which has some bugs under 1.5 JDK. Also it had no releases for a long time. Javaparser - seems good as well and pretty recent, but only supports Visitor pattern for a single class i.e. no query mechanism like in the 2 above packages.

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  • VS 2008 Open Word Document - Memory Error

    - by Lord Darkside
    I am executing the following code that worked fine in a vs2003(1.1) but seems to have decided otherwise now that I'm using vs2008(2.0/3.5): Dim wordApp As Microsoft.Office.Interop.Word.Application Dim wordDoc As Microsoft.Office.Interop.Word.Document missing = System.Reflection.Missing.Value wordApp = New Microsoft.Office.Interop.Word.Application() Dim wordfile As Object wordfile = "" ' path and file name goes here wordDoc = wordApp.Documents.Open(wordfile, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing) The error thrown when the Open is attempted is : "Attempted to read or write protected memory. This is often an indication that other memory is corrupt." Does anyone have any idea how to correct this?

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  • Has Object in VB 2010 received the same optimalization as dynamic in C# 4.0?

    - by Abel
    Some people have argued that the C# 4.0 feature introduced with the dynamic keyword is the same as the "everything is an Object" feature of VB. However, any call on a dynamic variable will be translated into a delegate once and from then on, the delegate will be called. In VB, when using Object, no caching is applied and each call on a non-typed method involves a whole lot of under-the-hood reflection, sometimes totaling a whopping 400-fold performance penalty. Have the dynamic type delegate-optimization and caching also been added to the VB untyped method calls, or is VB's untyped Object still so slow?

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  • Best approch to dynamically filter .net objects

    - by maxba
    The project i´m working currently on has a way to define a filter to filter objects from a database. This filter is a pretty straitforward class containing filtercriteria that will be combined to a sql where-clause. The goal now is to use this filter class to filter .net objects as well. So the filter for example defines, that the title property of the object that it is applied to must contain some userdefined string etc. What are ways to approch this problem? What should the filter return instead of the sql where-clause and how can it be applied to the object? I´m thinking about this for hours and don´t yet have even a slight idea how to solve this. Been thinking about reflection, dynamic code execution, building expressions but still haven´t found an acutal starting point.

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  • System.Linq.Dynamic and DateTime

    - by Matthew Hood
    I am using System.Linq.Dynamic to do custom where clauses from an ajax call in .Net MVC 1.0. It works fine for strings, int etc but not for DateTime, I get the exception cannot compare String to DateTime. The very simple test code is items = items.Where(string.Format(@" {0} {1}{2}{1} ", searchField, delimiter, searchString)); Where searchField will be for example start_date and the data type is DateTime, delimiter is " (tried with nothing as well) and searchString will be 01-Jan-2009 (tried with 01/01/2009 as well) and items is an IQueryable from LinqToSql. Is there a way of specifying the data type in a dynamic where, or is there a better approach. It is currently already using some reflection to work out what type of delimiter is required.

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  • Writing secure java code with RMI

    - by jtnire
    Hi Everyone, This may seem like a very broad question, but any help is appreciated. I have a client/server solution written in java which uses the Cajo project (which uses RMI). I just want to try and make my solution as secure as possible, given the sensitive data that will be transferred between server and client. So far, my ideas are to make all my classes "final" as well as throw a "non-serializable" exception for all my classes in the server (except for the object bound in the RMI registry, and any objects that actually do need to be transferred of course). Can anyone think of any other ideas? I know that someone could write a malicious client - this isn't hard to do as you can find out the remote object's API using reflection. However is there anything I can do to protect a malicious client access classes/objects within the server that they are not supposed to access? Many Thanks

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  • Performance of: if (OBJECT_INSTANCE is TYPE)

    - by Axonn
    I am working both in C# and ActionScript 3. Both language are type-aware, so you can do verifications such as: if (some_object_instance is SomeClassName_ThatIs_SomeType) I'm doing these kind of verifications in a few places. Might be a dumb question, but I will ask it anyway, and I want answers from both camps, C# and ActionScript: What goes on behind the scenes? Is it Reflection? If is, isn't this a long verification which might degrade performance if done in thousands of loops? And by "degrade performance" I mean, is it more intensive than say if (Math.sqrt(8) > Math.sin(10))

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  • C# DDD Populate Immutable Objects

    - by Russel
    Hi I have a immutable Customer class in my domain assembly. It contains the following GET properties : id, firstname and lastname. I have a CustomerRepository class in my persistence assembly. In turn, this CustomerRepository class should populate and return a Customer object using a remote web-serivce. My Customer class contains no setter properties and it contains a private constructor. The reason - I dont want the UI developer to get the wrong idea - He should not be able to create or change a Customer object. My question: How do I get my CustomerRepository to populate my Customer object. Reflection? Or should I sacrifice my design and enable a public constructor for constructing the customer object?

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  • Creating an enum/class from a Database Table

    - by Mark
    I have a database table that essentially contains different types of things. I'll use animals as an example. I have a table called AnimalTypes: AnimalTypes { ID:int, Name:string } I then populate it with: 1:Dog, 2:Cat, 3:Fish I would like to then have some sort of C# object created that functions similar to this enum be entirely read from the database: enum AnimalTypes { Dog = 1, Cat = 2, Fish = 3 } Is there a way to create an enum/class from a database table as described? I basically want to be able to reference things in the AnimalTypes table using intellisense and AnimalTypes.Dog as an example; I don't actually need an enum, just something that kind of functions like one. Is this possible? Edit: I'm not really that thrilled about generating a DLL as I've seen in other related problems. I feel like this should be possible with reflection.

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  • Initialize generic object from a System.Type

    - by CaptnCraig
    I need to create a generic type, but I do not know the type at compile time. I would like to do this: Type t = typeof(whatever); var list = new List<t> this won't compile, because t is not a valid type. But it does know all about a valid type. Is there a way to dynamically create the generic list from a System.Type like this? I may need reflection, and that's ok, I am just a bit lost here.

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  • How can i convert between F# List and F# Tuple?

    - by ksharp
    Is there some way to convert between F# List and F# Tuple? For example: [1;2;3] -> (1,2,3) (1,2,3,4) -> [1;2;3;4] I need two Functions to do that: let listToTuple list = ... let tupleToList tuple = ... Thank you in advance. I think reflection is necessary to this problem. I know the performance is not good. I have to pay the cost of breaking functional programming rule.

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  • Why I sould not develop an opensource runtime UI Autogeneration from domain objects?

    - by Marco Bettiolo
    I'm using for my projects a rather complete UI auto-generation tool from database entities for windows forms and asp.net I wrote. Now I've built a working prototype UI auto-generation tool from domain objects. Right now it is in early stage of development and by reflection it generates user interface for creating and updating domain objects. I searched a bit and I didn't find other opensource projects that have the same goal. Why? This type of tool is not useful? Is this idea fundamentally flawed? Thanks.

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  • How to retrieve path for a file embedded in Resources (Resource Manager)

    - by curiousone
    I am trying to retrieve file path for a html file that is embedded in resource (resx file) in VS2008 C# project. I want to give path of this file to native webbrowser control (PIEHtml) to be able to navigate (DTM_NAVIGATE) in my application. I know I can pass the string to this control using DTM_ADDTEXTW but since html text size is so big, I dont want to pass string to the control. I need to somehow extract the file path for this html file embedded inside resource manager. I tried using but this does not give the file path of html inside assembly: private ResourceManager resManager = new ResourceManager("AppName.FolderName.FileName", System.Reflection.Assembly.GetExecutingAssembly()); this.lbl.Text = resManager.GetString("StringInResources"); and also read Retrieving Resources in Satellite Assemblies but it did not solve my problem. Can somebody please provide info as to how to achieve this ?

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  • How to launch a Windows process as 64-bit from 32-bit code?

    - by Jonas
    To pop up the UAC dialog in Vista when writing to the HKLM registry hive, we opt to not use the Win32 Registry API, as when Vista permissions are lacking, we'd need to relaunch our entire application with administrator rights. Instead, we do this trick: ShellExecute(hWnd, "runas" /* display UAC prompt on Vista */, windir + "\\Reg", "add HKLM\\Software\\Company\\KeyName /v valueName /t REG_MULTI_TZ /d ValueData", NULL, SW_HIDE); This solution works fine, besides that our application is a 32-bit one, and it runs the REG.EXE command as it would be a 32-bit app using the WOW compatibility layer! :( If REG.EXE is ran from the command line, it's properly ran in 64-bit mode. This matters, because if it's ran as a 32-bit app, the registry keys will end up in the wrong place due to registry reflection. So is there any way to launch a 64-bit app programmatically from a 32-bit app and not have it run using the WOW64 subsystem like its parent 32-bit process (i.e. a "*" suffix in the Task Manager)?

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  • Winform .Net 3.5 - Get path of ApplicationFolder for Office Add-In

    - by Serexx
    Greetings - I am writing an add-in for Expression Web 3 in VS2008 The solution has a Windows Installer setup project in which the ApplicationFolder is tagged to hold some ancillary files. I need to be able to access those files during the add-in's startup, but naturally the Application object as well as the AppDomain reference paths to Expression Web not to the Add-In. There is a tickle in the back of my head that the solution involves reflection but thats as far as I can get... has anyone dealt with this or have any suggestions? Thanks!

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  • Mixing .NET 3.5 with 4/4.5 assemblies in the same process

    - by lysergic-acid
    Our team builds a .NET 3.5 WinForms based application that we'd like to migrate to the latest .NET version (4.5). Our application uses many "external" components (can be thought of as plugins) that are also currently .NET 3.5 based. I'd like to know what runtime/core libraries are used in case we convert ONLY THE APPLICATION to compile using .NET 4.5? Should this scenario properly work? (loading .NET 3.5 assemblies in a 4.5 process)? * The plugin assemblies are loaded via reflection. How does the CLR runtime handle such a scenario? is this a safe practice?

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  • T4 Template Interception

    - by JeffN825
    I'm wondering if anyone out there knows of any T4 template based method interception systems? We are beginning to write mobile applications (currently with MonoTouch for IOS). We have a very nice core set of DI/IoC functionality and I'd like to leverage this in development for the new platform. Since runtime code generation Reflection.Emit is not supported, I'm hoping to use T4 templates to implement the dynamic interception functionality (+ TinyIoC as a container for resolution). We are currently using Castle Windsor (and intend to continue doing so for our SL and full .NET development), but all of the Windsor specific ties are completely encapsulated, so given a suitable T4 solution, it shouldn't be hard to implement an adapter that uses a T4 based implementation instead of Windsor.

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