cnn = new SqlConnection(connetionString); cnn.Open(); MessageBox.Show("Connection Open !"); cnn.Close(); code example
Example: sql connection c#
private static void CreateCommand(string queryString,
string connectionString)
{
using (SqlConnection connection = new SqlConnection(
connectionString))
{
SqlCommand command = new SqlCommand(queryString, connection);
command.Connection.Open();
command.ExecuteNonQuery();
}
}