Scalar Variable Error

I'm setting the below sql datasources in my aspx.vb file and I'm getting a 'must declare scalar variable' error

I know why its happening but I don't know how to declare the session variable the the @seSchemeIDis looking for.

Below is the code, and the session variable it is looking for is set in the previous page and can be called in the pageload event.  I just don't know how to do it before that.


Imports System.Web.UI.WebControls
Partial Class mqsquote
    Inherits System.Web.UI.Page
    Dim dataSource1 As SqlDataSource = New SqlDataSource(ConfigurationManager.ConnectionStrings("LocalSqlServer").ConnectionString, "SELECT UseLenderVal FROM [vwSchemes] WHERE ([SchemeID] = @seSchemeID as Test")
    Dim dataSource2 As SqlDataSource = New SqlDataSource(ConfigurationManager.ConnectionStrings("LocalSqlServer").ConnectionString, "SELECT ApplicationFee FROM tblApplicationFees Where (@PurchasePrice  BETWEEN [Lower] AND [Higher])")

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Bob LearnedCommented:
If you are dynamically generating an SqlDataSource, and you know what the parameters are, then you could do something like this:

    Dim connectionString As String = ConfigurationManager.ConnectionStrings("LocalSqlServer").ConnectionString
    Dim commandText1 As String = String.Format("SELECT UseLenderVal FROM [vwSchemes] WHERE ([SchemeID] = {0} as Test", Session("SchemeID"))
    Dim commandText2 As String = String.Format("SELECT ApplicationFee FROM tblApplicationFees Where ({0} BETWEEN [Lower] AND [Higher])", Session("PurchasePrice"))
    Dim dataSource1 As New SqlDataSource(connectionString, commandText1)
    Dim dataSource2 As New SqlDataSource(connectionString, commandText2)

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