Hi,
I'm writing an application in wpf that uses MVVM. I wondered if I could use ado.net entity data model as a model in MVVM? Is it the same? If not, why?
Thanks for any help.
Regards,
Ev.
I'm implementing serial key functionality in my application. User needs to enter at least 64bit number in order to register the application. Because typing number like 9,223,372,036,854,775,807 will take a while I want to compress it a bit. The first guess was to code this number hexadecimally but it still is quite long (0x7FFF FFFF FFFF FFFF).
Is there any standard method in .NET to code this number alphanumerically using for example: digits, upper-case and lower-case characters?
What .NET method has this error message: "Object cannot be cast from DBNull to other types"
The stack traces have been stipped from my logs so I'm looking for a starting point.
I have converted a PowerBuilder application to 11.5 .NET. When it builds, it compiles into a DLL, an EXE and a bunch of “netmodule” files. Are the netmodules necessary for deployment, or just part of some intermediate step? Is there any way to get the compiler to build me one DLL for each pbl (PowerBuilder library)?
I need to print the contents of a datagridview, simple text in rows and columns, with GDI+ in .NET to paper.
To do this, I need to iterate over the rows, draw lines, iterate over the columns, calculate width, height, wrap the contents if contents do not fit on one line, etc. This is all possible, but is there a library that simplifies the drawing of tables in GDI+ and abstracts some of the difficulties away?
Hello everyone, I am trying to figure out the best way of getting the record and update in to gridview using ado.net entity framework in C#. I need implement Next & Previous button in gridview and based on pagesize i want to navigate records using Next&Back button. Any one give simple example for this context.
I would like to make notice of some wierd thing. I designed an entire package application using VB.Net in Visual Studio 2008. I changed the normal backgrounds to Black, to make a diffrerence. but the problem is i1mm getting changing back ground colors when i install it on other systems.which does have all supports required.
What should i do to supress this problem.
i published an application in vb.net. the user will be able to install the application anywhere they choose on the computer (or perhaps not anywhere they choose but where ever the default location is). how can i programmatically get the location where the user installed the application? another words i need the application to know where it is running from. how do i detect that?
Is there a way to tell the .NET to allocate a new object in generation 2 heap. I have a problem where I need to allocate approximately 200 MB of objects, do something with them, and throw them away. What happens here is that all the data gets copied two times (from gen0 to gen1 and then from gen1 to gen2).
I need to Read files form Linux , copy them into the another computer(Windows operation) and even delete file in Linux. but I want do this with .net program.!!!
these file have a specific location.
I need code sample or article for doing that.
Is there a good library to resize an image in .NET with good quality? I'm not pleased with the quality of resized images that GDI+ produces.
It does not matter if the library is free or at a cost.
One of the downsides of web.config/app.config is that it's just Magic Strings everywhere, since it's just an XML file.
Interpreted languages like PHP or Ruby have the advantage that the configuration is just code that is executed. In .net, doing stuff in code requires a redeployment, which defeats the purpose.
Now, before I build my own web.config replacement based on Boo or PowerShell I wanted to know if there is an existing one?
Hello, Where I can download sources of .net frameworke. I mean sources of libraries. I need sources of reflection methods like invoke and other.
Thanks.
In unmanaged code you can create a thread in suspended state. In .NET Framework I can't find this option. Is it because the Thread constructor puts the thread in a suspended state? Is there other reasons why this is not supported?
This question (http://stackoverflow.com/questions/245566/net-compact-framework-4-0) asked this back before the release of VS 2010. The answer basically said to wait for the release.
Now that the release is here, does anyone know? Is there an upgrade/update to the .NETCF? something past .NETCF 3.5?
Hi,
I would like to call a function automatically lets say every 2 secs.
Is this possible with .NET, and if so can you please paste some code?
This will be used in Windows Mobile 6 SDK
thanks
Hi all,
I am looking for informations about the security model of Microsoft .NET
If you could explain me how it is design, or give me links to understand it, it would be very kind of you !
Thanks.
hi .. im want to learn how to build a web service using vb.net.
unfortunately i could find any websites that provides good tutorial..
can any one suggest a web site? thank u in advance ..
Hello how can I have like a catalog for a property in .net VB .. I mean if i have
Property funcion(ByVal _funcion As Int16) As Int16
Get
Return _funcion
End Get
Set(ByVal value As Int16)
_funcion = value
End Set
End Property
I want to be able to assign to this property a limited number of options.
Example ..
Dim a as trick (the class )
a.funcion = (and get a list of possible attributes) ...
Thanks !!!
We have message framing working by using a lengh prefix but using .NET 2.0 beginSend/BeginReceive.
Is message framing any different in 3.5, if so how should we implement it using the new framework?
Are there any useable examples out there which focus purely on message framing using 3.5?
Many thanks
I'm curious if anyone has done any performance comparisons with any or all of the main players in the .NET ORM space. Specifically I'm interested in comparisons between the following:
Linq to SQL
NHibernate
LLBL Gen
Entity Framework
Though it seems people don't really consider Linq to SQL a true ORM, I am still including it in this list. Some performance metrics would be nice to see.
In a project using .Net4 - should there be any issues referencing dlls built for older versions of .Net? We're talking 3rd Party dlls here.
I'm asking this as a general question. Specifically I have a problem referencing FluentNHibernate.dll - built with .Net3.5. It worked justed fine before I updated my project from .Net3.5 to .Net4.
.NET 4 includes new concurrent data structures. The Bag and Dictionary collections have obvious applications but I cannot see any use for the Queue and Stack data structures. What are people using these for?
Also, I've noticed that the design based upon linked lists incurs a lot of allocation and that destroys scalability. This is surprising given that the sole purpose of these collections is multicore programming. Is this an inherent limitation or are they just badly implemented?