how to get all the database name in vb.net from ms sql server and what would be the intial catalog in sql connection string..

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i have two database in my sql server

(But this code gives only one database name)
my code was........what's wrong in it..

C#

SqlConnection con = new SqlConnection("Data source=Lenovo-Pc;Initial catalog=master;User ID=sa;Password=12345");
con.Open();
SqlCommand cmd = new SqlCommand("Select * From sys.databases Where database_id > 5", con);
SqlDataReader sdr = cmd.ExecuteReader();
if (sdr.Read())
{
        listBox1.Text = sdr["name"].ToString();
}
con.Close();

Posted 20-Feb-13 0:46am

GopinathSk

Updated 20-Feb-13 0:49am

CHill60

v2

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GopinathSk 20-Feb-13 6:53am

k.but even it gives only one db name..

2 solutions

Solution 2

You are using Listbox1.Text
This is from the Listbox Metadata (underlining mine)

//
// Summary:
//     Gets or searches for the text of the currently selected item in the System.Windows.Forms.ListBox.
//
// Returns:
//     The text of the currently selected item in the control.

To list all of the databases in your listbox you should be adding to the items collection i.e.

listBox1.Items.Add(sdr["name"]);

or use a multi-line Text box

Posted 20-Feb-13 1:22am

CHill60

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OriginalGriff · Accepted Answer · 2013-02-20T00:49:00

Change the "if" to a "while":

if (sdr.Read())

Becomes

while (sdr.Read())

And append the text to your listbox instead of overwriting it.

[edit]added my method for this - Original Griff[/edit]

Your code isn't the method I use, but it should work. The way I do it is:

C#

using (SqlConnection con = new SqlConnection(@"Data Source=GRIFFPC\SQLEXPRESS;Integrated Security=True"))
    {
    con.Open();
    using (SqlCommand cmd = new SqlCommand("sp_databases", con))
        {
        cmd.CommandType = CommandType.StoredProcedure;
        SqlDataReader read = cmd.ExecuteReader();
        while (read.Read())
            {
            Console.WriteLine((string)read["DATABASE_NAME"]);
            }
        }
    }

So a quick replacement of the security information with yours should make it work as well.

BTW: Change your admin login - you just told the entire world how to destroy your databases...