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ASP.NET VB running query against several servers times out.

I have an asp.net vb app that will let you enter any query and run it against a single sql 2000 server or as many as 100 servers.  The results are displayed in a gridview.  This works great, unless it times out.  I have increased the connection timeout but still seem to have the same problem.  Thanks in advance for the help
VB Code ********
If RadioButton1.Checked = True Then 'All servers
                    myConnection = New SqlConnection("server=10.20.14.31;uid=user;pwd=pass;database=SCADA_DATA")
                    'establishing connection. you need to provide password for sql server
                    Try
                        myConnection.Open()
                        'opening the connection
                        myCommand = New SqlCommand("Select * from serverlist", myConnection)
                        'executing the command and assigning it to connection 
                        dr = myCommand.ExecuteReader()
                        While dr.Read()
                            'reading from the datareader
                            Dim VobServer As String = dr(1).ToString()
                            'MsgBox(VobServer)
                            'Start loop of new sql command
                            Try
                                If My.Computer.Network.Ping(VobServer) Then
                                    dbProvider = "provider = sqloledb;Data Source=" & VobServer & ";Initial Catalog=Windman;User ID=user;Password=pass"
                                    sql = txtQuery.Text
                                    con = New OleDb.OleDbConnection(dbProvider)
                                    con.Open()
                                    da = New OleDb.OleDbDataAdapter(sql, con)
                                    da.Fill(ds, "QueryResult")
                                    GridView1.DataSource = ds.Tables("QueryResult").DefaultView
                                    GridView1.DataBind()
                                Else

                                End If
                            Catch ex As Exception
                                'txtError.Text = ""
                                'txtDateTime.Text = ""
                                'txtError.Text = VobServer & " " & ex.Message
                                'txtDateTime.Text = Date.Now
                                'SqlDataSource1.Insert()
                            End Try
                            'displaying the data from the table
                        End While
                        dr.Close()
                        myConnection.Close()
                    Catch ex As Exception
                        'txtError.Text = ""
                        'txtDateTime.Text = ""
                        'txtError.Text = ex.Message
                        'txtDateTime.Text = Date.Now
                        'SqlDataSource1.Insert()
                    End Try
End If

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NCSA SCADA
Asked:
NCSA SCADA
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1 Solution
 
gamarrojgqCommented:
Hi,

Try this

da.SelectCommand.CommandTimeout = 0

This will set NO TIME OUT for your query, but be careful because since there is no time out it could get stuck if the query does not respond.

Hope that helps
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NCSA SCADAAuthor Commented:
Hmm ..... thanks - I will give it a try
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NCSA SCADAAuthor Commented:
would it be placed after
da = New OleDb.OleDbDataAdapter(sql, con)
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gamarrojgqCommented:
Yes, just before you call the Fill method
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NCSA SCADAAuthor Commented:
I still get an error.
Sys.WebForms.PageRequestManagerTimeoutException: The server request timed out
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gamarrojgqCommented:
Ok, then, the error is getting from your ScriptManager,  try this, change your ScriptManaget tag in you markup  with this

<asp:ScriptManager ID="ScriptManager1" AsyncPostBackTimeOut="36000" runat="server" />
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NCSA SCADAAuthor Commented:
Thanks so much for the help.. have a good one
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