ODP.NET and DataSource Wizard RSS

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  dfrimmel

  Member

  59 Points

  152 Posts

  ODP.NET and DataSource Wizard

  Sep 21, 2018 01:33 PM|dfrimmel|LINK

  Hi,

  I'm (still) using Visual Studio 2010, and need to connect to some Oracle database. At first I did install Oracle Data Access Components (ODAC) - ODAC 12c Release 3 and Oracle Developer Tools for Visual Studio (12.1.0.2.1) latest version that support VS 2010. Open new website, add reference Oracle.DataAccess, and sucessfully created new Data Connection to server using ODP.NET managed driver. On new aspx page add gridview and when I want to create new data source using wizard there is no Oracle source type. 

  Also tried with sql database source type but it is not working since I cant provide selected date value from dropdown list to query.

  What to do and what I did wrong, I guess this is not OK?

  Thanks for help, this is first time I'm using Oracle and VS 2010 combination.

• • Reply
  dfrimmel

  Member

  59 Points

  152 Posts

  Re: ODP.NET and DataSource Wizard

  Sep 24, 2018 12:36 PM|dfrimmel|LINK

          Try
              Dim connstr As String = ConfigurationManager.ConnectionStrings("LIVE").ConnectionString
              Using conn As New OracleConnection(connstr)
                  conn.Open()
                  Using cmd As New OracleCommand
                      cmd.Connection = conn
                      cmd.CommandType = CommandType.Text
                      cmd.CommandText = "SELECT FROM TABLE"
  
                      Using oda As New OracleDataAdapter(cmd)
                          Dim ds As New DataSet()
                          oda.Fill(ds)
                          GridView1.DataSource = ds.Tables(0)
                          GridView1.DataBind()
                      End Using
                  End Using
              End Using
          Catch ex As Exception
          End Try

  At the end I load data to GridView from code behind, and used control value like for any other select, just import

  Imports Oracle.DataAccess.Client
  Imports Oracle.DataAccess.Types

  It was not that complicated, but I prefer to use wizard for less complex situations. Maybe someone will find this useful.

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  Lannie

  Contributor

  3422 Points

  1335 Posts

  Re: ODP.NET and DataSource Wizard

  Sep 26, 2018 11:27 PM|Lannie|LINK

  Never found the Visual Studio Tools useful at all and prefer just to code it myself.

  I use XML tag for the SQL statement, less fuss with punctuation, string appending and such.

  Imports System.Xml.Linq.XElement
  
  Try
  	Dim connectionString As String = ConfigurationManager.ConnectionStrings("AuthenticatedOracleConnectionString").ConnectionString
  	Dim SQL = _
  		<SQL>
  		 SELECT PRODUCT_CLASS, AMOUNT_ANNUAL_CONTRACT, COUNT, TOTAL_VALUE
  		 FROM TEST.VW_COUNT_CONTRACTS
  	</SQL>
  	Using conn As New OracleConnection(connectionString)
  		Using cmd As New OracleCommand(SQL.Value, conn)
  			conn.Open()
  			Using oda As New OracleDataAdapter(cmd)
  				Dim ds As New DataSet()
  				oda.Fill(ds)
  				Me.RadGrid1.DataSource = ds
  				Me.RadGrid1.MasterTableView.DataSource = ds
  			End Using
  		End Using
  	End Using
  Catch ex As Exception
  	AppCalls.WriteToEventLog(ex, "Selecting VW_COUNT_CONTRACTS", "ContractAdjust.aspx.vb")
  End Try