请教LISTVIEW根据指定列内容数值更改当前行颜色,出错了

你的代码没问题 我试过了~ 肯定是其他地方出错了
我的测试代码：
Imports

Public Class Form1

    Private Sub writeToListView()
        Dim fs As FileStream = New FileStream("E:\fileName.txt", FileMode.Open)
        Dim sr As StreamReader = New StreamReader(fs)
        Dim str As String = sr.ReadLine()
        Dim substr(0, 2) As String
        substr(0, 0) = str.Substring(0, str.IndexOf(" ")) '3
        substr(0, 1) = str.Substring(str.IndexOf(" ") + 1, str.LastIndexOf(" ") - str.IndexOf(" ") - 1) '0
        substr(0, 2) = str.Substring(str.LastIndexOf(" ") + 1, str.Length - str.LastIndexOf(" ") - 1) '222
        ListView1.Items.Add(substr(0, 0))
        ListView1.Items.Add(substr(0, 1))
        ListView1.Items.Add(substr(0, 2))

        For i As Integer = 0 To ListView1.Items.Count - 1
            Select Case ListView1.Items(i).SubItems(0).Text
                Case Is = 0
                    ListView1.Items(i).ForeColor = Color.Blue
                Case Is >= 1
                    ListView1.Items(i).ForeColor = Color.Green
            End Select
        Next

    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Call writeToListView()
    End Sub
End Class