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Editorial Team
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Asked: 2026-05-13T19:23:29+00:00

int[] ddfv = DropDownList1.SelectedItem.Value.ToString().Split(‘_’).Select(part => int.Parse(part, System.Globalization.NumberStyles.Integer)).ToArray(); error : there is no .Select in

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int[] ddfv = DropDownList1.SelectedItem.Value.ToString().Split('_').Select(part => int.Parse(part, System.Globalization.NumberStyles.Integer)).ToArray();

error : there is no .Select in String [] 🙁

there is a value like “1_2” I need to save 1 and 2 as integer values 🙂

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1 Answer

  1. Editorial Team

    Select is an extension method, defined in the System.Linq namespace.

    The reason for the error is probably one of these:

    • you are missing the reference to the assembly System.Core
    • you are missing the using directive for Linq (using System.Linq;)
    • you are not using .NET 3.x
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