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Connection Problem in .NET

108 100+
Hi guys,

I got an error when I try to connect to a sample database and the error is " Connection property is not initialized". What does it mean? I was able to connect to the database because the I call the Open() method. I paste my code below and I hope you can help me to solve this problem.
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  1. //connect.cs
  2. class Connect
  3.     {
  4.         public SqlConnection con;
  5.  
  6.         private string conString = 
  7.             global::ADOTest4.Properties.Settings.Default.PersonalInformationConnectionString;
  8.  
  9.         public bool GetConnected()
  10.         {
  11.             try
  12.             {
  13.                 con = new SqlConnection(conString);
  14.                 con.Open();
  15.             }
  16.             catch (Exception ex)
  17.             {
  18.                 Console.WriteLine(ex.Message);
  19.                 return false;
  20.             }
  21.  
  22.             return true;
  23.         }
  24.  
  25.         public void GetClose()
  26.         {
  27.             if (con != null)
  28.             {
  29.                 con.Close();
  30.                 con = null;
  31.             }
  32.         }
  33.     }
  34.  
  35. //inside the form.cs
  36. private void LoadButton_Click(object sender, EventArgs e)
  37.         {
  38.             Connect c = new Connect();
  39.             bool connect = c.GetConnected();
  40.             if (connect)
  41.             {
  42.                 SqlCommand com = new SqlCommand("SELECT Lname FROM dbo.Employe");
  43.                 SqlDataReader rdr = com.ExecuteReader();
  44.  
  45.                 while ( rdr.Read() )
  46.                 {
  47.                     this.listBox1.Items.Add(rdr.GetString(2));
  48.                 }
  49.                 c.GetClose();
  50.             }
  51.         }
Jan 25 '08 #1
1 767
romcab
108 100+
Hi,
I was able to solve it, I just need to add the connection object in the command constructor..

Thanks.
Jan 25 '08 #2

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