ช่วยด้วยครับ Telerik connection string error เข้าใจว่า Connection string มีปัญหา

 Private Sub Previewreport_Load(sender As Object, e As EventArgs) Handles MyBase.Load


        sql = " SELECT DISTINCT doc_fortran.doc_no,doc_sum.drstaff,doc_fortran.ref_doc, doc_fortran.cstm_code, doc_fortran.cstm_name, doc_fortran.bill_no, doc_fortran.doc_bill, doc_fortran.sdate, doc_fortran.price, doc_fortran.discount, doc_fortran.total_price, doc_sum.total_p, doc_sum.total_discount, doc_sum.total_price AS Expr1 FROM doc_fortran INNER JOIN doc_sum ON doc_fortran.ref_doc = doc_sum.ref_doc AND doc_fortran.cstm_code = doc_sum.cstm_code where doc_fortran.ref_doc='" & Form1.t_doctran.Text & "' order by doc_fortran.doc_no ASC"



        Dim report As New Report1
        Dim reportdata As New Telerik.Reporting.SqlDataSource
        reportdata.ConnectionString = "server=192.168.1.240;Port=3306;User Id=xxxx;Password=xxxx;Database=mydb;Convert Zero Datetime=True"
        reportdata.SelectCommand = sql
        report.DataSource = reportdata
        ReportViewer1.ReportSource = report
        ReportViewer1.Refresh()

        Me.ReportViewer1.RefreshReport()
        report.t_date.Value = Now.Date
    End Sub