Database connectivity problem....

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VS2008

C#

ASP.NET

SQL

C#3.5

, +

Hi..

I am facing problem in database connectivity....

I am working in a project in ASP.NET c# .NET 3.5 SQL Server 2005 and Visual studio 2008.

I have developed one Web Application in ASP.NET C# 3.5 framework in Visual studio 2008 and database in SQL Server 2005. I have SQL Server Management Studio Express 2005 in my computer.

I have completed my project and database.

Now the problem arises when I copy my project folder containing-AppData folder..etc..etc. to another computer.

And SQL Server database i created Backup as .bak file.

Now when I came to new computer I pasted the Project folder. I open the project folder with Visual Studio 2008. Program runs fine. But when I double click on any Button or text box, instead of opening in Code page(.cs file), the Button click event is opening in Source page within Script tag.---This is my Problem No.1.

And I restore the .bak file of sql server database.

My project contains connection string in each asp.net page. I change the server name and database name as in New computer.

Now when I run the project my error is giving some instance related error..I tried a lot but could not solve it.

Sqldataadapter da=new sqldataadapted("insert into table name....",con);
Dataset ds=new Dataset;
da.fill(ds)----In this line the error is showing.----This is my Problem No.2


Thanks in Advance for help.