Greetings
what iam trying to do is loop thru a checkedlistbox i open a file and theres text files in the checkedlistbox all checked, want to search thru all text files adding all found items in lstListBox1.Items.Add(m.Value)
i can do 1 file at a time , below is some code i been working with
Thank you for any help on this.

Code:
Dim options As RegexOptions = RegexOptions.Multiline

        Dim testStr As String = IO.File.ReadAllText(openFileDialog1.FileName)

        
        Dim rx1 As New Regex(" My regex here")

        Dim n As Integer = testStr.Count
        'CheckedListBox1
        
        For n = 0 To (CheckedListBox1.Items.Count - 1)
            If CheckedListBox1.GetItemChecked(n) = True Then

               
                MsgBox(CheckedListBox1.CheckedItems.Item(n))




                For Each m As Match In rx1.Matches(testStr)

                    lstListBox1.Items.Add(m.Value)

                Next
            End If

        Next
Best,Regards