2020年5月17日 星期日

vb.net listbox 裡的數字重新排列 (sort) [Listbox sort number] 


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        Dim items = (From item In ListBox1.Items Order By CInt(item) Select item).ToArray

    'Dim items = (From item In ListBox1.Items Let parts = item.ToString.Split(New String() {"."}, StringSplitOptions.None) Order By CInt(parts(0)) Select item).ToArray

    '如有文字的話

        ListBox1.Items.Clear()

        ListBox1.Items.AddRange(items)



------------------------------------------------------------



    'sort by first number

    Dim items = (From item In ListBox1.Items _

                 Let parts = item.ToString.Split(New String() {" - ("}, StringSplitOptions.None) _

                 Order By CInt(parts(0)) _


                 Select item).ToArray

    ListBox1.Items.Clear()

    ListBox1.Items.AddRange(items)

    

    'sort by first number, then by second number

    Dim items = (From item In ListBox1.Items _

                 Let parts = item.ToString.Split(New String() {" - ("}, StringSplitOptions.None) _

                 Order By CInt(parts(0)), CInt(parts(1).TrimEnd(")"c)) _

                 Select item).ToArray

    ListBox1.Items.Clear()

    ListBox1.Items.AddRange(items)
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