Accessing controls located in a dynamically created user control vb.net - vb.net

Question

I am a casual programmer with not a lot of experience. I am happy I have made it this far on my own (with help of course from this site and others like it). But now I need some help.
I have created a user control with several text boxes, masked text boxes, combo boxes, a check box and 3 buttons.
I have created a form (Form1) with a tab control (TabControl1) that has 1 tab page on it (TabPage1). I have added my user control to TabPage1 and the control assumes the name ContactTab1. This was done through the VB.net form design, not by code.
When I run my form I have code so that when I click on my add button, it adds another tab with my user control added to it (no matter which tab I may be on). It works great, I can add as many tabs as I want. When I click on my edit or delete button, they work great in the sense that I know which tab the button is on when it gets clicked. My problem is when I click the edit button I need to set ckbDeleteContact.Checked = False and ckbDeleteContact.Visible = False on the tab that the button was clicked. When I click the delete button I need to set ckbDeleteContact.Checked = True and ckbDeleteContact.Visible = True on the tab that the button was clicked. I can access the check box on the first tab without a problem with the statement ContactTab1.ckbDeleteContact.Checked = False.
So my question is, how do I access all these text boxes, masked text boxes, combo boxes, and my check box on these dynamically added controls? Below is my code for Form1 and I have commented out what I need working:
Public Class Form1
Private intTabPage As Integer = 1
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
TabPage1.Text = "Contact #" & intTabPage
ContactTab1.ckbDeleteContact.Checked = False
ContactTab1.ckbDeleteContact.Visible = False
TabPage1.Name = "TabPage" & intTabPage
intTabPage = intTabPage + 1
End Sub
Private Sub UC_btnAddContact_Click() Handles ContactTab1.UC_btnAddContact_Click
AddNewTab()
End Sub
Private Sub UC_btnEditContact_Click() Handles ContactTab1.UC_btnEditContact_Click
'**DEBUG: See which tab the button is on when clicked
MessageBox.Show("The edit button from the following tab was clicked: " & TabControl1.SelectedTab.Name() & vbCrLf & "The edit button on the following contact tab was clicked: " & TabControl1.SelectedTab.Controls.Item(0).Name(), "Check", MessageBoxButtons.OK, MessageBoxIcon.Information)
'This code is what needs to work. ContactTabObject would have naming convention "ContactTabX" where X = the tab # 1 through the highest tab #
'ContactTabObject.ckbDeleteContact.Checked = False
'ContactTabObject.ckbDeleteContact.Visible = False
End Sub
Private Sub UC_btnDeleteContact_Click() Handles ContactTab1.UC_btnDeleteContact_Click
'**DEBUG: See which tab the button is on when clicked
MessageBox.Show("The delete button from the following tab was clicked: " & TabControl1.SelectedTab.Name() & vbCrLf & "The delete button on the following contact tab was clicked: " & TabControl1.SelectedTab.Controls.Item(0).Name(), "Check", MessageBoxButtons.OK, MessageBoxIcon.Information)
'This code is what needs to work. ContactTabObject would have naming convention "ContactTabX" where X = the tab # 1 through the highest tab #
'ContactTabObject.ckbDeleteContact.Visible = True
'ContactTabObject.ckbDeleteContact.Checked = True
End Sub
Function AddNewTab()
Dim NewTab As New TabPage
Dim NewContactTab As New ContactTab
TabControl1.Controls.Add(NewTab)
TabControl1.SelectTab(NewTab)
NewTab.Text = "Contact #" & intTabPage
NewTab.BackColor = System.Drawing.Color.Transparent
NewTab.Controls.Add(NewContactTab)
NewTab.Name = "TabPage" & intTabPage
NewContactTab.Location = New System.Drawing.Point(6, 6)
NewContactTab.BackColor = System.Drawing.Color.Transparent
NewContactTab.ckbDeleteContact.Checked = False
NewContactTab.ckbDeleteContact.Visible = False
AddHandler (NewContactTab.btnAddContact.Click), AddressOf UC_btnAddContact_Click
AddHandler (NewContactTab.btnEditContact.Click), AddressOf UC_btnEditContact_Click
AddHandler (NewContactTab.btnDeleteContact.Click), AddressOf UC_btnDeleteContact_Click
NewContactTab.Name = "ContactTab" & intTabPage
intTabPage = intTabPage + 1
End Function
End Class
Once I get this figured out, I should be good to go and I should be able to get the rest on my own. In case you are wondering, I will also be filling in the options for my combo boxes with data from a database. I will then be using the form to take all the data in it and either adding, editing, or deleting the information from a database.
Thanks in advance.

Answer 1

As #HansPassant said you just need to add properties to your user control to get access to your controls in it. I'm not a vb.net guy, but I think this is going to help you:
Public Function MyTextbox() As System.Windows.Forms.TextBox
Return Textbox1
End Function
You can write this in your user control code.

Answer 2

Ok, maybe I was not the clearest in my post or I just don't understand the encapsulation thing. I can access all my controls since they are standard controls. I just needed to know how I could get the name of the parent control, which in this case is the user defined control named ContactTabX where X = 1 through n controls that were added when I pressed my add button n times. I could always access them by saying something likeContactTab5.ckbDeleteContact.Visible = True or whatever. I did not want to hardcode since I would not be sure how many tabs were added so I wanted a way to know which tab I was on when the button was pressed that way I could change that check box property on that particular tab (since every tab is identical).
I spent hours trying to figure it out and well here is what I was able to figure out about 10 mins after posting the question (go figure). I hope this helps anyone else. And for you experts out there, any feedback is appreciated on my solution. I always like to learn :)
So replacing the subs I originally posted with these worked perfectly.
Private Sub UC_btnEditContact_Click() Handles ContactTab1.UC_btnEditContact_Click
'**DEBUG: See which tab the button is on when clicked
'MessageBox.Show("The edit button from the following tab was clicked: " & TabControl1.SelectedTab.Name() & vbCrLf & "The edit button on the following contact tab was clicked: " & TabControl1.SelectedTab.Controls.Item(0).Name(), "Check", MessageBoxButtons.OK, MessageBoxIcon.Information)
Dim Contact As ContactTab = TabControl1.SelectedTab.Controls.Item(0)
Contact.Name = TabControl1.SelectedTab.Controls.Item(0).Name()
Contact.ckbDeleteContact.Visible = False
Contact.ckbDeleteContact.Checked = False
Contact = Nothing
End Sub
Private Sub UC_btnDeleteContact_Click() Handles ContactTab1.UC_btnDeleteContact_Click
'**DEBUG: See which tab the button is on when clicked
' MessageBox.Show("The delete button from the following tab was clicked: " & TabControl1.SelectedTab.Name() & vbCrLf & "The delete button on the following contact tab was clicked: " & TabControl1.SelectedTab.Controls.Item(0).Name(), "Check", MessageBoxButtons.OK, MessageBoxIcon.Information)
Dim Contact As ContactTab = TabControl1.SelectedTab.Controls.Item(0)
Contact.Name = TabControl1.SelectedTab.Controls.Item(0).Name()
Contact.ckbDeleteContact.Visible = True
Contact.ckbDeleteContact.Checked = True
Contact = Nothing
End Sub
Thanks again for the input.