Fatal error encountered attempting to read the resultset when data fetch from remote mysql in VB.NET

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VB

Private Sub btnFill_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnFill.Click
        'Dim MysqlConn As New MySqlConnection("server=103.50.163.157;database=mayarrod_mdemo;user id=" & TextBox1.Text & " ; password=" & TextBox2.Text & ";")
        Dim MysqlConn As New MySqlConnection("server=127.0.0.1;database=mayarrod_mdemo;user id=" & TextBox1.Text & ";password=" & TextBox2.Text & ";Connect Timeout=21600;")


        Try
            MysqlConn.Open()
            SQL = "SELECT * FROM StudentRegistration"
            ContactsCommand.Connection = MysqlConn
            ContactsCommand.CommandText = SQL

            ContactsAdapter.SelectCommand = ContactsCommand
            ContactsAdapter.Fill(ContactsData) '<<-------- Error (Fetal read data)

            DataGridView1.DataSource = ContactsData

        Catch myerror As MySqlException
            MessageBox.Show("Cannot connect to database: " & myerror.Message)
        Finally
            MysqlConn.Close()
            MysqlConn.Dispose()
        End Try

    End Sub

What I have tried:

Fatal error encountered attempting to read the resultset. Mysql

Posted 1-Jul-20 21:22pm

sushant.khot31

Updated 1-Jul-20 22:16pm

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OriginalGriff · Answer 1 · 2020-07-01T22:16:00

At a guess - and since we can't access your database that's all it can be - it's taking too long for some reason. You could try the advice here: MySQL Bugs: #61807: Fatal error encountered during data read[^] but if that doesn't solve it, you'll need to use the debugger to look at the whole exception object and see if there is any further info in the InnerException or stack trace.

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