Question

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
    Dim ds As DataSet
    ds = getData()
    Dim dt As DataTable = ds.Tables(0)
    Dim gridViewData = From r As DataRow In dt.Rows Select r.Item("foo"), r.Item("bar")
    GridView1.DataSource = gridViewData
    GridView1.DataBind()
End Sub

I just wrote the preceeding code and I get the following compile-time error: “Range variable name can be inferred only from a simple or qualified name with no arguments”. Why do I get this error? How can I fix my code?

Answer 1

EDIT: Okay, I understand the problem now. It’s in the projection. Try this:

Dim gridViewData = From r As DataRow In dt.Rows _
                   Select Foo = r.Item("foo"), Bar = r.Item("bar")

Basically it didn’t know what to call the properties in the projection.