Error: Cannot Read From A Closed TextReader (VB 2010)

Nov 18, 2009

I have created extension method which operates items in IEnumerable(Of T). .NET Framework 4.0 has new method File.ReadLines which returns IEnumerable(Of String). I got two implicitly typedvariables which operate on lines returned by File.Readlines.The first iteration goes OK, but when second iteration starts, program stops ancompiler goes to my extension method and points to ProcessFunction(item) with the following: "Cannot read from a closed TextReader".If I change data to data.ToList, then no error occurs. What can be wrong?

Here's code:
Module Program
Delegate Sub ProcessFunc(Of T)(ByVal item As T)

[code].....

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Quote:

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[code]....

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[code]....

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i am getting an error like invalid attempt to read when reader is closed

[Code]...

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[Code]...

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There is already an open DataReader associated with this Connection which must be closed first.

the error fails when it trying to read this [code]...

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[code]....

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Quote:

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Sub Month()
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Try
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With Cmd

[Code]...

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[Code]...

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[code]...

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[code]....

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[code]....

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[code]....

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[code]....

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