[سعود]

تاكد من المرفق ربما وضعت مرفق خطا

كود :

Public Class Form1

    'Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    '

    'End Sub

    'Private Sub OpenFileDialog1_FileOk(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles OpenFileDialog1.FileOk

    'End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim a
        Dim i As Integer
        Dim b()
        a = InputBox("ادخال السطر المطلوب", , 1)
        If Val(a) >= 1 And Val(a) <= TextBox1.Lines.Length And TextBox1.Text <> "" Then
            b = Split(TextBox1.Text, vbNewLine)
            TextBox1.Clear()

            For i = 0 To UBound(b)
                If i + 1 = a Then
                Else
                    TextBox1.Text &= b(i) & vbNewLine
                End If

            Next
            SaveFileDialog1.ShowDialog()
            SaveFileDialog1.FileName.Insert(1, TextBox1.Text)
        Else
            MsgBox("try again", MsgBoxStyle.Critical)
        End If
    End Sub
End Class

هذا هو الكلاس للمثال اللي رفعت