Working with datasets

ive create a dataset for my application to reference on it needs to in the standard fashon of

Code:

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        Dim Symbol As DataColumn = New DataColumn("Symbol")
        Symbol.DataType = System.Type.GetType("System.String")
        In_Stack_Priority.Columns.Add(Symbol)

        Dim InStackPriority As DataColumn = New   
        DataColumn("In-StackPriority")
        Symbol.DataType = System.Type.GetType("System.String")
        In_Stack_Priority.Columns.Add(InStackPriority)

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And populated the rows and colums as such

Code:

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        Row1 = In_Stack_Priority.NewRow()
        Row1("Symbol") = ")"
        Row1("In-StackPriority") = "-"
        In_Stack_Priority.Rows.Add(Row1)

        Row2 = In_Stack_Priority.NewRow()
        Row2("Symbol") = "**"
        Row2("In-StackPriority") = "3"
        In_Stack_Priority.Rows.Add(Row2)

        Row3 = In_Stack_Priority.NewRow()
        Row3("Symbol") = "*"
        Row3("In-StackPriority") = "2"
        In_Stack_Priority.Rows.Add(Row3)

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Now my question is about getting data back from the data set. I want to be able to mach a symbol (entered by a user) to a symbol in my data set - and then only return the "In-StackPriority" number. NOT the whole a row

Any ideas?