Private Function FindLogic(ByVal LV As ListView, ByVal CIndex As Integer, ByVal SearchFor As String) As Integer
Dim idx As Integer
Dim It = From i In LV.Items Where i.index > CIndex And i.Text = SearchFor
If It.Count > 0 Then
    idx = It(0).Index
Else
    idx = -1
End If
Return idx
End Function

Dim idx As Integer = -1
For Each lvi As ListViewItem In Me.lvwData.Items
    If lvi.SubItems(1).Text = "TextToSearchFor" Then
        idx = lvi.Index
    End If
Next

Private Function FindLogic(ByVal LV As ListView, ByVal CIndex As Integer, ByVal SearchFor As String) As Integer
    Dim idx As Integer
    Dim It = From i In LV.Items Where i.index > CIndex And i.SubItems(1).Text = SearchFor
    If It.Count > 0 Then
        idx = It(0).Index
    Else
        idx = -1
    End If
    Return idx
    End Function

Private Function FindLogic(ByVal LV As ListView, ByVal CIndex As Integer, ByVal Column As Integer, ByVal SearchFor As String) As Integer
    Dim idx As Integer
    Dim It = From i In LV.Items Where i.index > CIndex And i.SubItems(Column).Text = SearchFor
    If It.Count > 0 Then
        idx = It(0).Index
    Else
        idx = -1
    End If
    Return idx
    End Function

FindLogic(Listview1, 1, 1, "Dog")

FindLogic(Listview1, 1, LV.SelectedIndices(0), "Dog")