MySqlConnection Constructor(String)

In This Topic

Initializes a new instance of the MySqlConnection class when given a string containing the connection string.

Syntax

Visual Basic
C#


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


public MySqlConnection( string connectionString )

Parameters

connectionString: The connection used to connect to MySQL.

Remarks

When a new instance of MySqlConnection is created, the read/write properties are set to the following initial values unless they are specifically set using their associated keywords in the ConnectionString property.

Properties	Initial Value
ConnectionString	connectionString
ConnectionTimeout	15
Database	empty string ("")
Host	empty string ("")
Password	empty string ("")
Port	3306
UserId	empty string ("")

Example

The following example creates and opens a MySqlConnection.

csharp


public void CreateMySqlConnection() { string myConnString = "User Id=root;Host=localhost;Database=Test;"; MySqlConnection myConnection = new MySqlConnection(myConnString); myConnection.Open(); //Do something myConnection.Close(); }

public void CreateMySqlConnection()
{
  string myConnString = 
      "User Id=root;Host=localhost;Database=Test;";
  MySqlConnection myConnection = new MySqlConnection(myConnString);
  myConnection.Open();
  //Do something
  myConnection.Close();
}

Visual Basic


Public Sub CreateMySqlConnection() Dim myConnString As String = _ "User Id=root;Host=localhost;Database=Test;" Dim myConnection As New MySqlConnection(myConnString) myConnection.Open() 'Do something myConnection.Close() End Sub

Public Sub CreateMySqlConnection()
  Dim myConnString As String = _
      "User Id=root;Host=localhost;Database=Test;"
  Dim myConnection As New MySqlConnection(myConnString)
  myConnection.Open()
  'Do something
  myConnection.Close()
End Sub

Reference

MySqlConnection Class
MySqlConnection Members
Overload List
ConnectionString Property

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