mallikarjun's Q&A profile

• Visual C# Retrieving the COM class factory for component{} - 8007007e

  Hi, I am trying to take screenshots of any open Internet Explorer. I have writen the code and it works fine when I run the site in debug mode. Once the site is published I get the following error: Retrieving the COM class factory for component with CLSID {9BA05972-F6A8-11CF-A442-00A0C90A8F39} failed due to the following error: 8007007e. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: Sys ...Show All

• Visual Studio Team System Problem connection to Team Foundation Server Proxy

  I have the following environment: - Windows Server 2003 SP1 with SQL Server June CTP and Team Foundation Server Data Tier July CTP - Windows Server 2003 SP1 with Team Foundation Server Application Tier July CTP - Windows XP Professional SP2 with Visual Studio Team System July CTP All installed cleanly onto clean machines. I can connect to Team Foundation Server fine. All is well. Now, I've installed the Team Foundation Server Proxy July CTP onto another clean Windows Server 2003 SP1 machine. Followed the install instructions, including proxy.config and web.config. All installed cleanly. Now, when I try to connect Team Explorer to t ...Show All

• Windows Forms DataGridViewComboBoxColumn Bug?

  I have a DataGridViewComboBoxColumn bound to a collection. I have the DisplayStyle set to Nothing. When the user clicks into the cell, the drop-down appears, and it appears as if the first item is selected. (The TextBox portion of the drop-down is filled-in with the first entry and the first entry is highlighted). If that is the item the user wanted then they just move on to the next cell without "picking" anything. When the user moves into the next cell the drop-down goes back to looking empty. The visual cues are VERY confusing. It appears to the user that the item is picked, and yet its not. Is there any way to stop the Data ...Show All

• Visual C++ Comparing ref pointers for equality

  Now that operator overloading allows to ref classes to be compared for equality using == syntax, how does one compare the actual ref pointers ( ^ ) for equality instead As an example: SomeRefObject ^ obj1(..initialized somehow); SomeRefObject ^ obj2(..initialized somehow); if (obj1 == obj2) // This compares the objects themselves for equality in C++/CLI I assume. How do I compare the ref pointers themselves ( ^ ) for equality You have to downcast to System::Object first - this avoids any equality operators that may be defined if (static_cast<System::Object^>(obj1) == st ...Show All

• Visual Studio Express Editions Passing System::Object to a function - how to

  Hi, I am stuck on a problem with pasing an argument to a function. I am using Visual C++ Express Edition and I imported an Active X component. It has a function like this: Virtual Bool AxTRIOPCLib::AxTrioPC::GetTable( int Val1, int Val2 , System Object ^% Values) Can sombody tell me how I can declare and pass an object to it and then later convert returned values into Double I cannot find any examples and I am not so experienced with . NET objects. Thanks a lot, Jerry. Dustmaker wrote: Hi, I am stuck on a problem with pasing an argument to a function. I am using Visual C++ Express Edition and I impor ...Show All

• Software Development for Windows Vista Ifelse activity in workflow

  How can I set the condition for the ifelse activity . how do I invoke the branching based on the condition. Raskal, I ended up writing an IfElseActivity of my own, due to an additional requirement I had. My requirement was to select multiple conditions for the branch, and I also wanted to pass parameters to the conditions. So I implemented an ifelse activity that takes conditions in the form of activities that implement an interface called IConditionActivity. You can go have a look and download the solution at: http://dotnet.org.za/hendrik/archive/2006/07/04/53953.aspx ...Show All

• Visual Studio Express Editions Application.Run vs Form.Show vs Form.ShowDialog

  What does this new addition to the basic C# project do exactly I'm having major problems with my existing code to do with cross-thread operations and also an intermittent bug in the debugger. I can't seem to get any questions answered about either problem. Does this Application.Run statement perform some new fundamental operation I am unaware of To demonstrate the bug, simply create a new WindowsApplication and replace Application.Run(new Form1) with Form1 f = new Form1, Form1.Show(). Instant intermittent crashes. Could someone point me to a demonstration of how to run multiple independent Forms under the new framework maybe Hmm... Ap ...Show All

• Smart Device Development Opening a device with "POS for .NET"

  Hi. I have a question about using "Microsoft POS for .NET".  If this is not the right place, I apologize. I have a line display that had been working fine.  I then added more devices, using a usb hub and a serial-to-usb hub, which I had problems with, but finally I got the printer to work.  Meanwhile the line display no longer works.  I even unplugged all the other devices and just plugged in the display as the lone device into the native usb port, just like it had been before, but it doesn't help. When I try to call Open() on the display, it fails with the error "Closed".  This is really confusing.  Of course i ...Show All

• .NET Development dataadapter

  I have learnt that in VS2005 you can use dataadapters to connect to a stored procedure in a database and wite to the back end (delete, update, insert). This seems to have a lot less code than if you start using code such as sqlcommand, sqlconnection, parametrs... I know for sure that there are disadvantages in using the dataadapters approach instead of using the sqlcommand, etc... What are the disadavatages please Thanks Ah, I'm not sure where you picked up this information. It's a bit muddled. ADO.NET has alwasy had the ability to call stored procedures to fetch and perform updates (UPDATE, DEL ...Show All

• Visual Studio Team System About code annotation?

  #include <CodeAnalysis\SourceAnnotations.h> #include <iostream> using namespace std; using namespace vc_attributes; void f ([Pre(Access=Read)] int x) { x=10; cout<<x<<endl; } int main() { int a; a=5; f(a); return 0; } This is a example from msdn~ [Pre(Access=Read)] means that x can only read. x can't be write~~ But after I compile,I print x . x is 10; This mean x was written. why There is msdn's helper about this example http://msdn2.microsoft.com/en-us/library/ms182038(d=ide).aspx ...Show All

• SQL Server SQL Express

  I was able to load and/or install VB Express, .NET Framework, SQL Server 2005, but the process failed un installing SQLExpress. I tried using the seperate SQLExpress download, but that failed as well. I have the MS SQL Server 2005 configuration tools on my start menu. I did delete all previous beta S/W prior to the install process. Is there a way to fix this I did not understand from your post, what was the sequence of actions. You installed full version of SQL Server 2005 and tried to uninstall SQL Express and the uninstall process of SQL Express failed You can try using Windows installer cleanu ...Show All

• Windows Forms managing database...

  Hi, I need to manage a database that can go up to 2 GB. Which is the best way to do it  Should I use Access or SQL  Should I use DataSets Any suggestions Thanks The maximum size of an Access database is 2 GB, so it should do. However, if there's a chance you'll have more data in the future, SQL Server is the better&nb ...Show All

• Windows Forms Cannot focus on a control that has CanFocus = True

  I have a form with a groupbox and two buttons, Button1 and Button2. Button1 is focused when the form loads. If I call Button2.Focus() from a sub that handles Button1.KeyDown (Button_KeyDown), then Button2 gets the focus. No problem there. The same sub, Button_KeyDown, also handles events from a custom class I´ve built. When Button_KeyDown is fired from MyCustomO ...Show All

• Visual Basic Keep a function running until it ends

  Hello all, I have a unique problem that i'm hopeing all or some of you can help me with. I'm writing a content management system for my personal blog. I'm looking at creating a type of rules system. Kinda like in email, when you receive email from someone you know, the rule kicks in and transfers that email to a special folder. I want to do something similiar with my html code. When i add a new post, i want to loop through all of the content to see if any keywords are present. Then, replace them with html code that will link to other pages. I've got it working by transfering the html text to a function that i've written. However, ...Show All

• .NET Development Monitor & Lock

  Please verify whether the following observation is correct or not: ________________ public void fun() { Monitor.Enter(x); Console.WriteLine("Locked X"); Thread.Sleep(100); x=y; Monitor.Exit(x); Console.WriteLine("Released X"); Monitor.Enter(y); Console.WriteLine("Locked Y"); Thread.Sleep(500); Monitor.Exit(y); Console.WriteLine("Released X"); } __________________ In the above function let x,y be some objects. I started 2 threads on the same funtion fun(). Now both of these threads will try to lock "x" (the delay is deliberately inserted to achieve this). Now only one of them will suceed. But the thread that s ...Show All