Search Functions through Array - arrays

Question

I'm super stuck on this one guys and need some help.
I have a multiple arrays Name, age, height, weight which is created on another form where all their data is entered into the arrays but then I need to go to another form where there is text box that I enter one of the name into and click search and then in a text box or list box it will show age, height, weight corresponding to the index of that name search.
My main problem is trying to get the arrays data over to another form and the other problem is trying to get the computer to search through the array know what index it is and show the corresponding data to that index for the other arrays. Been stuck on this for very long now could some please give me suggestions on how to do this it would be heavily appreciated, Thank you.
This is the code/ arrays I have so far
Imports System.IO
Public Class DataEntry
Dim Surname(200)
Dim Firstname(200)
Dim Age(200) As String
Dim HeightA(200) As String
Dim Weight(200)
Dim index As Integer
Public filepath As String = "c:\Patients\All Patients File"
Private Sub Button4_Click(sender As Object, e As EventArgs) Handles btnCreate.Click
Dim di As DirectoryInfo = New DirectoryInfo("c:\Patients")
If di.Exists Then
MsgBox("File is Already There")
txtSur.Enabled = True
txtWeight.Enabled = True
txtHeight.Enabled = True
txtFirst.Enabled = True
txtAge.Enabled = True
btnAddPatient.Enabled = True
btnClear.Enabled = True
btnFileShow.Enabled = True
btnEdit.Enabled = True
btnSave.Enabled = True
txtReader.Enabled = True
Else
di.Create()
MsgBox("File is Already There")
txtSur.Enabled = True
txtWeight.Enabled = True
txtHeight.Enabled = True
txtFirst.Enabled = True
txtAge.Enabled = True
btnAddPatient.Enabled = True
btnClear.Enabled = True
btnFileShow.Enabled = True
btnEdit.Enabled = True
btnSave.Enabled = True
txtReader.Enabled = True
End If
End Sub
Private Sub btnAddPatient_Click(sender As Object, e As EventArgs) Handles btnAddPatient.Click
index = index + 1
lblNum.Text = index
Surname(index) = txtSur.Text
Firstname(index) = txtFirst.Text
Age(index) = txtAge.Text
Weight(index) = txtWeight.Text
HeightA(index) = txtHeight.Text
Dim textAppend As String
textAppend = txtSur.Text & ", " + txtFirst.Text & ", " + txtAge.Text & ", " + txtHeight.Text & "mm" & ", " + txtWeight.Text & "kg" & "."
Try
File.AppendAllText(filepath, textAppend)
MsgBox("Patient Added Successfully")
Catch ex As Exception
MsgBox("Error Adding Patient")
End Try
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles btnFileShow.Click
Dim objreader As New System.IO.StreamReader("c:\Patients\All Patients File")
txtReader.Text = objreader.ReadToEnd
objreader.Close()
End Sub
Private Sub btnClear_Click(sender As Object, e As EventArgs) Handles btnClear.Click
Dim result As Integer = MessageBox.Show("Are You Sure You Want To Clear", "ALERT", MessageBoxButtons.YesNoCancel)
If result = DialogResult.Cancel Then
MessageBox.Show("Cancel pressed")
ElseIf result = DialogResult.No Then
MessageBox.Show("Not Clearing")
ElseIf result = DialogResult.Yes Then
MessageBox.Show("Clearing")
End If
Dim objwriter As New System.IO.StreamWriter("c:\Patients\All Patients File")
'adding text from textbox to text fil
objwriter.Write("")
objwriter.Close()
Array.Clear(Surname, 0, Surname.Length)
Array.Clear(Firstname, 0, Firstname.Length)
Array.Clear(Age, 0, Age.Length)
Array.Clear(Weight, 0, Weight.Length)
Array.Clear(HeightA, 0, HeightA.Length)
index = 0
txtAge.Text = ""
txtFirst.Text = ""
txtHeight.Text = ""
txtSur.Text = ""
txtWeight.Text = ""
txtReader.Text = ""
End Sub
Private Sub DataEntry_Load(sender As Object, e As EventArgs) Handles MyBase.Load
txtSur.Enabled = False
txtWeight.Enabled = False
txtHeight.Enabled = False
txtFirst.Enabled = False
txtAge.Enabled = False
btnAddPatient.Enabled = False
btnClear.Enabled = False
btnFileShow.Enabled = False
btnEdit.Enabled = False
btnSave.Enabled = False
txtReader.Enabled = False
End Sub
Private Sub btnEdit_Click(sender As Object, e As EventArgs) Handles btnEdit.Click
If txtReader.Text = "" Then
MsgBox("No Infomation To Edit")
Else
txtReader.Focus()
End If
End Sub
Private Sub btnSave_Click(sender As Object, e As EventArgs) Handles btnSave.Click
If txtReader.Text = "" Then
MsgBox("Nothing To Save")
Else
Dim objwriter As New System.IO.StreamWriter("c:\Patients\All Patients File")
'adding text from textbox to text file
objwriter.Write(txtReader.Text)
objwriter.Close()
MsgBox("Saved Edit")
End If
End Sub
Private Sub Button1_Click_1(sender As Object, e As EventArgs) Handles Button1.Click
Form1.Show()
Me.Hide()
End Sub
End Class
And this is the form I have to get the arrays over to for the search
Public Class SearchPatient
Private Sub btnSearch_Click(sender As Object, e As EventArgs) Handles btnSearch.Click
End Sub