TdConnection Constructor(String)

Initializes a new instance of TdConnection given a connection string.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
Public Function New( _
   ByVal connectionString As String _
)

'Usage
 
Dim connectionString As String
 
Dim instance As New TdConnection(connectionString)

public TdConnection( 
   string connectionString
)

public:
TdConnection( 
   String^ connectionString
)

Parameters

connectionString: Identifies session attributes like User Id and Password.

Exceptions

Exception	Description
System.ArgumentException	An invalid connection string is passed in. See TdDataReader for valid attribute names and values.

Remarks

A new instance of the TdConnection class is created. The input parameter connectionString is validated and properties such as TdConnection.Database and TdConnection.DataSource are set to the corresponding ConnectionString initial values.

Property	Initial Value
ConnectionString	Input parameter connectionString
ConnectionTimeout	20 or value supplied in connectionString
Database	empty string or value supplied in connectionString
DataSource	empty string or value supplied in connectionString
ServerVersion	empty string
State	System.Data.ConnectionState.Closed

Example

The following example creates an instance of the TdConnection class, sets the TdConnection.ConnectionString property and opens a connection to the Advanced SQL Engine.

public TdConnection CreateConnection()
{
    TdConnection cn = 
           new TdConnection(“Data Source=Teradata1;User Id=ab;Password=ab;”);
            
    cn.Open();
            
    return cn;
}

Requirements

Target Platforms: Windows 8.1, Windows 10, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019

Reference

TdConnection Class
TdConnection Members
Overload List