Question Search "words with mark" in txt file?

[titanotam]

i want to search "words with mark" in txt file.
For example: i want to search: "tâm" in my txt file. but my code couldn't find that word, it could find a word "tam"
Please help me!

Here is my code:

''Button search

Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
        If FindStringInFile("link to my txt file", "word with mark") Then
            MessageBox.Show("found")
        Else
            MessageBox.Show("not found")
        End If
End Sub

'' Search Function

Public Function FindStringInFile(ByVal Filename As String, ByVal SearchString As String) As Boolean
        Dim Reader As System.IO.StreamReader
        Reader = New IO.StreamReader(Filename)
        Dim stringReader As String
        Try
            While Reader.Peek <> -1
                stringReader = Reader.ReadLine()
                If InStr(stringReader, SearchString) > 0 Then Return True
            End While
            Reader.Close()
            Return False
        Catch ex As Exception
            MessageBox.Show("Exception: " & ex.Message)
            Return False
        End Try
End Function

 

[rcombs4]

You are returning a result before you read the entire file.

Use ReadToEnd() to read the entire contents of a file.