C# Discussion Boards - CodeProject

First Prev Next

How we can check whether exchange server is installed in a system using c#.

Sebastian T Xavier9-Apr-12 23:54

Sebastian T Xavier

9-Apr-12 23:54

How we can check whether exchange server is installed in a system using c#.

About Compound File

Member 81435139-Apr-12 23:50

Member 8143513

9-Apr-12 23:50

I want to store hash table in compound file.Is there any way to do that? Presently i am storing hash table in .dat file using BinaryFormatter class.

Re: About Compound File

Richard MacCutchan10-Apr-12 0:09

Richard MacCutchan

10-Apr-12 0:09

Member 8143513 wrote:
I want to store hash table in compound file.

What is a compound file?

Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman

Re: About Compound File

ddecoy10-Apr-12 2:44

ddecoy

10-Apr-12 2:44

http://en.wikipedia.org/wiki/Compound_File_Binary_Format[^]

Re: About Compound File

PIEBALDconsult10-Apr-12 3:08

PIEBALDconsult

10-Apr-12 3:08

" used in a variety of programs from Microsoft Word and Microsoft Access to Business Objects
"

but now they use XML.

Re: About Compound File

Richard MacCutchan10-Apr-12 5:30

Richard MacCutchan

10-Apr-12 5:30

Very interesting but are you sure that's what OP means?

Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman

Modifying an exisiting registry value

MitchG92_249-Apr-12 23:34

MitchG92_24

9-Apr-12 23:34

I need to change a registry value using a console c# app. I am getting an error though but from what i see, the code is alright, any suggestions?

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.Win32;
namespace ChangeHomepage
{
class Program
{
static void Main(string[] args)
{
RegistryKey rkHKLM = Registry.CurrentUser;
RegistryKey rkRun;
String site = "whatever site";
String regPath =("HKEY_CURRENT_USER\\Software\\Microsoft\\Internet Explorer\\Main");

rkRun = rkHKLM.OpenSubKey(regPath, true);
rkRun.DeleteValue("Start Page", true );
rkRun.SetValue("Start Page", site, RegistryValueKind.String);
Registry.CurrentUser.Flush();
}
}
}

Re: Modifying an exisiting registry value

DaveyM699-Apr-12 23:49

DaveyM69

9-Apr-12 23:49

MitchG92_24 wrote:
I am getting an error though

Sharing the details of the error message will help us to help you...

Dave

Binging is like googling, it just feels dirtier.
Please take your VB.NET out of our nice case sensitive forum.
Astonish us. Be exceptional. (Pete O'Hanlon)

BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)

C Sharp Login with different user privilege

Xonel9-Apr-12 23:06

Xonel

9-Apr-12 23:06

Hello

I have an application that is basically built on Tab control. I have 8 tabs and i need to have different domains(e.g Admin, clerk, bursar, secretary) on my login where when a user under a specific domain clicks on a certain tab, an event is generated that prevents him from viewing the content of that tab

Any advice please???

Re: C Sharp Login with different user privilege

Sebastian T Xavier9-Apr-12 23:57

Sebastian T Xavier

9-Apr-12 23:57

It will be better to define different roles & privileges; Then we can show / hide different tabs based on the privileges of the logined user.

Re: C Sharp Login with different user privilege

Xonel10-Apr-12 1:02

Xonel

10-Apr-12 1:02

Please give me a simple guide line...
Thank you

Re: C Sharp Login with different user privilege

BobJanova10-Apr-12 6:31

BobJanova

10-Apr-12 6:31

Web app, or desktop? (It helps to be precise in your initial question.)

Re: C Sharp Login with different user privilege

Xonel10-Apr-12 23:06

Xonel

10-Apr-12 23:06

It is a desktop application

Re: C Sharp Login with different user privilege

BobJanova10-Apr-12 23:18

BobJanova

10-Apr-12 23:18

Okay, so you need to manage roles yourself, unless you want to use the standard Windows account properties. I think you can get the group name and you can definitely get the domain and user name.

Re: C Sharp Login with different user privilege

Xonel10-Apr-12 23:19

Xonel

10-Apr-12 23:19

I was thinking of it this way...

    private void Form1_Load(object sender, EventArgs e)

    {
    if ((Thread.CurrentPrincipal.IsInRole("admin"))) // admin in this case should be a domain name.
    {
    tabPage4.Hide();
    }
    else
    {
        MessageBox.Show("You must be a member of the Manager or Administrator's roles to view username and password information", "Insufficient Permissions",
            MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
    }
}

But now instead of

CurrentPrincipal.IsInRole

put something that will read the domain name. Something of that sort.
I'll appreciate any help
Thank you

Adding Reference to Dll (Class Library ) & Using statements

Smith#9-Apr-12 21:09

Smith#

9-Apr-12 21:09

Hi,
I would like to know:
1.what happens when you add a reference to a Class library in dotnet.

2.Is it something like a "implicit" linking in C++?

3.Can I make the library statically link to the exe?

4.And does the dll in dotnet internally have implementation for DLLAttach, Detach?

Re: Adding Reference to Dll (Class Library ) & Using statements

Richard Andrew x6410-Apr-12 8:38

Richard Andrew x64

10-Apr-12 8:38

1. It is similar to compile-time linking in C++ in that the CLR automatically loads the library

2. A little bit.

3. No. The CLR takes care of runtime loading and linking automagically. You are not allowed to have anything to do with it.

4. All necessary runtime loading and linking is taken care of by the CLR.

The difficult we do right away...
...the impossible takes slightly longer.

Re: Adding Reference to Dll (Class Library ) & Using statements

Smith#11-Apr-12 2:16

Smith#

11-Apr-12 2:16

Thanks for the reply mate.
I'm trying to look into the internals of managed world.

The document says "CLR is hosted"? Does that mean CLR is per process stuff? is it not system wide?

Re: Adding Reference to Dll (Class Library ) & Using statements

Richard Andrew x6411-Apr-12 5:12

Richard Andrew x64

11-Apr-12 5:12

The CLR is 100% a user mode component. No kernel mode stuff at all.

Technically, the CLR maintains a single process space, and all .NET "processes" are segregated within that one process space. These are called Application Domains. The fact that they are really within the same process makes inter-application communication much simpler and faster.

The difficult we do right away...
...the impossible takes slightly longer.

Re: Adding Reference to Dll (Class Library ) & Using statements

Smith#11-Apr-12 21:34

Smith#

11-Apr-12 21:34

Thanks for the reply Richard.

I'm trying to dig a little deep into it but most of the links show up a blunt high level Block diagrams , explaining the stacks in the framework.

I need to a pointer to understand low level details of how CLR is invoked to deal managed Applications.

Anywhere you can point me to?

I want to know: When I execute a managed App, how does the OS route the exe to the CLR?

Or CLR is mapped to every process? If CLR hosts all the managed Apps as domains? then how does it over ride 4GB limit per process in a 32bit system?

Re: Adding Reference to Dll (Class Library ) & Using statements

Richard Andrew x6412-Apr-12 5:13

Richard Andrew x64

12-Apr-12 5:13

Yes, those certainly are important questions.

I'm not sure where to find such detailed information. Perhaps the MSDN blogs?

Good luck.

The difficult we do right away...
...the impossible takes slightly longer.

Database Explorer Query

mauricemcse9-Apr-12 12:38

mauricemcse

9-Apr-12 12:38

Working with Visual Studio 2008. My tutorial indicates that when a SQL database is created the solutions explorer changes to the database explorer.

The view changed on the first attempt but has not been seen since. Looking for guidance for troubleshooting if necessary. Or... was the view only shown first creation. Guidance sought

Re: Database Explorer Query

PIEBALDconsult9-Apr-12 14:27

PIEBALDconsult

9-Apr-12 14:27

Sounds like a Visual Studio question, not a C# question.

Re: Database Explorer Query

mauricemcse9-Apr-12 16:25

mauricemcse

9-Apr-12 16:25

Much thanks for your reply. Please know that I checked the discussion list and did not see Visual Studio. Woudld be so appreciative for a link.

* Just saw Visual Studio in this forum for the first time. Much thanks

Cordially,
mauricemcse

Re: Database Explorer Query

Richard MacCutchan9-Apr-12 21:09

Richard MacCutchan

9-Apr-12 21:09

It's the one bottom left titled "Visual Studio".

Unrequited desire is character building. OriginalGriff
I'm sitting here giving you a standing ovation - Len Goodman

Last Visit: 31-Dec-99 18:00 Last Update: 4-May-24 17:48

Refresh

ᐊ Prev 1...2092 2093 2094 209520962097 2098 2099 2100 2101 Next ᐅ

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.