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Sql string in C#

shek124
50
HAi ,

IN C#.NET , i wtite a query in string type variable SQL . But the + or & operator is not supported in string values .. this is my exception while starts the project.

In vb.net , it is working well .. whats the error. im the newbie to C#.net
Dec 7 '07 #1
4 7389
dip_developer
648 Expert 512MB
HAi ,

IN C#.NET , i wtite a query in string type variable SQL . But the + or & operator is not supported in string values .. this is my exception while starts the project.

In vb.net , it is working well .. whats the error. im the newbie to C#.net
please give us the code part....
Dec 7 '07 #2
shek124
50
Query:
Expand|Select|Wrap|Line Numbers
  1. string query = "insert into print_details (Printed_date, Printed_time, User_login, Printer_name, IP_address, Document_name, Total_pages) values('+ date() +', '+ time() +' , '" + m_owner + "', '" + m_Drivername + "', '" + ip_address.ToString + "', '" + m_Documentname + "','" + m_TotalPages + "' )";

ERROR:
[HTML]Error2 Operator '+' cannot be applied to operands of type 'string' and 'method group'[/HTML]
Dec 7 '07 #3
Query:
Expand|Select|Wrap|Line Numbers
  1. string query = "insert into print_details (Printed_date, Printed_time, User_login, Printer_name, IP_address, Document_name, Total_pages) values('+ date() +', '+ time() +' , '" + m_owner + "', '" + m_Drivername + "', '" + ip_address.ToString + "', '" + m_Documentname + "','" + m_TotalPages + "' )";
[/HTML]
in C# u should write like this:
string query= "INSERT INTO print_details" + "([database field name]) "+ " VALUES (@variable)";
Dec 7 '07 #4
Plater
7,872 Expert 4TB
Query:
Expand|Select|Wrap|Line Numbers
  1. string query = "insert into print_details (Printed_date, Printed_time, User_login, Printer_name, IP_address, Document_name, Total_pages) values('+ date() +', '+ time() +' , '" + m_owner + "', '" + m_Drivername + "', '" + ip_address.ToString + "', '" + m_Documentname + "','" + m_TotalPages + "' )";

ERROR:
[HTML]Error2 Operator '+' cannot be applied to operands of type 'string' and 'method group'[/HTML]
You are missing some () after ToString. There might also be problems with date()/time() as I don't know how you are using the SQL functions
Expand|Select|Wrap|Line Numbers
  1. string query = "insert into print_details (Printed_date, Printed_time, User_login, Printer_name, IP_address, Document_name, Total_pages)";
  2. query+="values('+ date() +"', '"+ time() +"' , '" + m_owner + "', '" + m_Drivername + "', '" + ip_address.ToString() + "', '" + m_Documentname + "','" + m_TotalPages + "' )";
  3.  
Dec 7 '07 #5

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