Entity framework + IDataErrorInfo - .NET (Core and Framework) Discussion Boards

Getting Error while opening .NET project in Visual Studio 2005

deadlyabbas11-Feb-10 22:12

11-Feb-10 22:12

Hi,
I am getting an error while opning the project in visual studio 2005.The project is created in Visual Studio 2008.
I don't have Visual Studio 2008 right now.Please let me know that is there any Service Pack or any other way to do it.
Following is the error:
"This project cannot be opened form source control because it was created by a version of Microsoft Visual Studio that is incomplete with this one.
If this is the case, you may be able to open it from source control using that version of Microsoft Visual Studio, and then use Microsoft Visual Studio to open the local copy."

Thanks,
Abbas

Re: Getting Error while opening .NET project in Visual Studio 2005 [modified]

thatraja11-Feb-10 22:15

thatraja

11-Feb-10 22:15

Visual source safe issue, may be your server(network) machine is in OFF which contains the project

modified on Friday, February 12, 2010 4:56 AM

Re: Getting Error while opening .NET project in Visual Studio 2005

Abhinav S11-Feb-10 23:23

Abhinav S

11-Feb-10 23:23

Found this here[^].

How can I disable the integration between VSS and Visual Studio?

Under the registry key: HKEY_CURRENT_USER\Software\Microsoft\DevStudio\6.0\Source Control (for Visual Studio 6.0) or HKEY_CURRENT_USER\Software\Microsoft\DevStudio\5.0\Source Control (for Visual Studio 5.0) , change or created the entry:
Name: Disabled
Type: REG_DWORD
Data: 0x1

Me, I'm dishonest. And a dishonest man you can always trust to be dishonest.
Honestly. It's the honest ones you want to watch out for...

How to convert pixels to inches, cms, mts (VB.net)

dileep200911-Feb-10 21:40

dileep2009

11-Feb-10 21:40

Hi,

I am developing a project in which i need to find the size of image and convert it into inches/cms/mts.
Can anybody help me to convert the pixels size to other units in VB.net

Thanks in advance

Re: How to convert pixels to inches, cms, mts (VB.net)

Eddy Vluggen12-Feb-10 1:57

Eddy Vluggen

12-Feb-10 1:57

dileep2009 wrote:
in which i need to find the size of image and convert it into inches/cms/mts

You'd need to determine the DPI[^] of the medium that this image is going to. Then you'd count the pixels; you could determine the size in inches with those two values - and convert it to centimeters or meters if required Smile | :)

I are Troll Suspicious | :suss:

True OOP?

thesoulfyguy10-Feb-10 22:07

thesoulfyguy

10-Feb-10 22:07

Hi
I have 10 Objects of different types, each object interacts with every other object, but depending on which object is interacting with which, it performs different functions.

For example

if i have objA, ObjB and ObjC then they could interact as follows

ObjA + ObjB performs function x
ObjA + ObjC performs function y
ObjB + ObjC performs function z

and so forth.

My question though is: From a true object orientated way, what is the best way to deal with this problem? Is there a particular design pattern i could have a look at? Doing this the wrong way would include several nested Select Case statements, but would cause a major maintenance hassle especially if the number of objects increased

I'm using VB.net

Thank you

Re: True OOP?

Eddy Vluggen10-Feb-10 22:21

Eddy Vluggen

10-Feb-10 22:21

thesoulfyguy wrote:
Is there a particular design pattern i could have a look at?

Looks like a good fit for the Decorator[^] pattern.

I are Troll Suspicious | :suss:

Entity framework + IDataErrorInfo

Ravi Mori10-Feb-10 19:06

Ravi Mori

10-Feb-10 19:06

Hi friends,
I am using entity framework.
Now what i want is to implement IDataErrorInfo interface in all entities.
i find following great article (in vb):
http://blogs.msdn.com/bethmassi/archive/2008/02/25/simple-validation-with-linq-to-sql-classes.aspx[^]

But i don't want to extend all classes by writing in code behind file of model, that is our linq to sql classes.

So is there any other way for validating entities in entity data model.

Visual Studio 2010 Release Candidate now at general availability

brucedkyle10-Feb-10 10:50

brucedkyle

10-Feb-10 10:50

You can now get the release candidate (RC) of Visual Studio 2010 and .NET Framework 4.

The release candidate (RC) bits are now ready for general download here[^].

For more information, see Release Candidate for Visual Studio 2010 Now Generally Available[^].

Article includes download link, free developer training on .NET Framework 4, and a quick FAQ. You'll also find links to the new features that will be of interest.

Learn more about Microsoft emerging techologies[^] on the Microsoft blog for independent software vendors (ISVs) in the United States.

Windows Service

koleraba10-Feb-10 2:53

koleraba

10-Feb-10 2:53

Hi
I have to create a windows service. While browsing the internet I found a few articles which are taking about classes which should not be used in the windows service. So far I found the following.

System.Timers.Timer
System.Windows.Threading.DispatcherTimer
System.ComponentModel.BackgroundWorker

Is that correct? Are there any aditional classes which should not be used in a windows service?
Thanks in advance.

Uroš

Re: Windows Service

Not Active10-Feb-10 3:03

Not Active

10-Feb-10 3:03

It depends more on what and how your service is going to be used.

I know the language. I've read a book. - _Madmatt

Re: Windows Service

koleraba10-Feb-10 3:17

koleraba

10-Feb-10 3:17

What do you mean how? The service communicates with an .net application using WCF and than releys data to ethernet device using tcp sockets.

Uroš

Re: Windows Service

Not Active10-Feb-10 3:40

Not Active

10-Feb-10 3:40

You seem to be missing the point. Perhaps more research on what a Windows service is, and isn't, will clarify it for you.

I know the language. I've read a book. - _Madmatt

Re: Windows Service

Covean10-Feb-10 3:16

Covean

10-Feb-10 3:16

In general you have to avoid everything that does something with the GUI.
Services that try to open a window or something in that way will hang up
(except services that can interact with the desktop, but don't use this anymore because it becomes obsolete).

But you can use the class System.Timers.Timer in a service, you can't use the System.Windows.Forms.Timer!

Greetings
Covean

Re: Windows Service

koleraba10-Feb-10 3:28

koleraba

10-Feb-10 3:28

I know I should avoid anything that has to do with UI. But Background Worker does not exectly fit that criteria. Is the information regarding the Background worker event corrent?

Re: Windows Service

Covean10-Feb-10 3:49

Covean

10-Feb-10 3:49

I can't see any reason why BackgroundWorker shouldn't work in a service.
Its just using delegates and normal events.

I also googled a little bit. It says it works on a service but this class is designed for
UI purposes only so you shouldn't use it. Just use a normal Thread, this will work in any case.

Greetings
Covean

Re: Windows Service

koleraba10-Feb-10 3:55

koleraba

10-Feb-10 3:55

I can't see it either. I just read it on:
http://www.devnewsgroups.net/group/microsoft.public.dotnet.framework/topic30104.aspx

Re: Windows Service

Covean10-Feb-10 4:11

Covean

10-Feb-10 4:11

Did you read the last message on this board?

"It works fine in a console or service app with no forms. The delegates are
run on thread pool threads instead of the UI thread. So there is nothing
special going on, just delegates, BeginInvoke, and events. Try it yourself."

Greetings
Covean

Enterprise Library 5.0 Beta1 and Unity 2.0 Beta1 released - evaluate now!

gmelnik210-Feb-10 2:47

gmelnik2

10-Feb-10 2:47

BETA1 releases of Microsoft Enterprise Library 5.0 and Microsoft Unity 2.0 are available for evaluation now.

Those who followed the progress of the patterns & practices team through the regular iteration-end code drops are aware what a massive undertaking this has been! With exception of the integration with the Visual Studio, this release is feature complete. Enterprise Library users who are looking at this release for the first time, please review thee Change Log.

The team is very excited about the improvements they’ve made to the overall Enterprise Library architecture and configuration experience, both of Enterprise Library and Unity (with new configuration tools, fluent interface and IntelliSense support with new schemas). They also focused on making Enterprise Library easier to extend.

Here’s your call to action. Download this Beta1 release. It will quite happily run side-by-side with earlier versions, so you can easily evaluate it without disrupting your development environment. Try the new features. Attempt a migration of an existing application. Tell Entlib Team about your experiences.

Public announcement by Grigori Melnik, Entlib Guardian:
http://blogs.msdn.com/agile/archive/2010/02/08/enterprise-library-5-0-beta1-and-unity-2-0-beta1-are-released.aspx
Roadmap:
http://blogs.msdn.com/agile/archive/2010/01/20/announcing-enterprise-library-5-0-and-unity-2-0-roadmap.aspx
Demo of several new features:
http://blogs.msdn.com/agile/archive/2009/12/07/enterprise-library-5-0-preview-video-posted.aspx

Message Removed

9-Feb-10 20:52

T2102

9-Feb-10 20:52

Message Removed

Re: Query CSV file using Distinct & Order by

Richard MacCutchan9-Feb-10 21:44

Richard MacCutchan

9-Feb-10 21:44

This appears to be nothing to do with .NET, try the Database forum.

MVP 2010 - are they mad?

Re: Query CSV file using Distinct & Order by

T21029-Feb-10 22:39

T2102

9-Feb-10 22:39

I am using System::Data::OleDb::OleDbConnection. I know SQL; the problem is that some SQL code does not work fully with some .NET providers. I will try the database forum.

javascript wtih LinkButton Confirmation box Formatting Text

Zap-Man9-Feb-10 18:16

Zap-Man

9-Feb-10 18:16

I have a gridview that displays a delete LinkButton. I also have a javascript confim box display before any action is taken. This works just find. What I want to do is insert a carrage return in the confim box. I thought that I could use "\n" but for some reason when I try this the confimation box does not display and the row is deleted. below is the function I have that is displaying the box.

protected void SetDeleteButton(Object sender, EventArgs e) {
        LinkButton btn= (LinkButton)sender;

        btn.Attributes.Add("onclick", "return confirm(\"Removing this Category will remove all Sub-Categories and Products tied to this Category. Are you sure you want to proceed? \");");
    }

I get what I want from this except the format of the text is not neat. I would like to center the text if possible. and I want a new line where its asking the question "Are you sure you want to proceed?"

Re: javascript wtih LinkButton Confirmation box Formatting Text

thatraja9-Feb-10 22:11

thatraja

9-Feb-10 22:11

use

\\n

for the new line.

Re: javascript wtih LinkButton Confirmation box Formatting Text

Zap-Man10-Feb-10 2:54

Zap-Man

10-Feb-10 2:54

lol

I diffently should have seen that. Guess I was just having a brain fart.

Thanks

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