Input a button's text into a text box - vb.net

Question

Following on from my last Question Buttons to be renamed by the user which was answered quickly and helped a lot.
At the moment I have got this code, which I need to have on 100's of buttons.
What I need to know is how to use the text from the button to put into the different text boxes that requires them.
If Label4.Text = "Admin" Then
With DirectCast(sender, Button)
.Text = InputBox("Button Name", "Button Name", .Text)
End With
Else
Me.TransactionBindingSource.AddNew()
Product_NameTextBox.Text = >>>>>>Button name<<<<<<<<
Try
Me.ProductTableAdapter.FillByProductName(Me.Database1DataSet.Product, Product_NameTextBox.Text)
Catch ex As System.Exception
System.Windows.Forms.MessageBox.Show(ex.Message)
End Try
ProductTextBox.Text = >>>>>>>Button2.Text<<<<<<<<
GroupTextBox.Text = GroupTextBox1.Text
AmountTextBox.Text = AmountTextBox1.Text
PriceTextBox.Text = PriceTextBox1.Text
TimeTextBox.Text = TimeOfDay
DateTextBox.Text = DateString
Me.Validate()
Me.TransactionBindingSource.EndEdit()
Me.TransactionTableAdapter.Update(Me.Database1DataSet)
Timer2.Enabled = True
TransNameLB.Items.Add(>>>>>>>Button2.Text<<<<<<<<)
TransPriceLB.Items.Add(PriceTextBox.Text)
Dim sum As Double
For x As Integer = 0 To TransPriceLB.Items.Count - 1
sum += Val(TransPriceLB.Items.Item(x).ToString)
Next
TextBox1.Text = sum.ToString
QTYDrinksTB.Text = TransNameLB.Items.Count
End If
End Sub
Everything works apart from the bits between >>> <<<, where I need to get the button that is clicked and return the text from the button into the text boxes/list box.
I have 100's of buttons that need this code.

Answer 1

You use With DirectCast(sender, Button) from your previous question, which can also be used to help with your other parts. For example:
If Label4.Text = "Admin" Then
With DirectCast(sender, Button)
.Text = InputBox("Button Name", "Button Name", .Text)
End With
Else
Me.TransactionBindingSource.AddNew()
With DirectCast(sender, Button)
Product_NameTextBox.Text = .Text
Try
Me.ProductTableAdapter.FillByProductName(Me.Database1DataSet.Product, Product_NameTextBox.Text)
Catch ex As System.Exception
System.Windows.Forms.MessageBox.Show(ex.Message)
End Try
ProductTextBox.Text = .Text
GroupTextBox.Text = GroupTextBox1.Text
AmountTextBox.Text = AmountTextBox1.Text
PriceTextBox.Text = PriceTextBox1.Text
TimeTextBox.Text = TimeOfDay
DateTextBox.Text = DateString
Me.Validate()
Me.TransactionBindingSource.EndEdit()
Me.TransactionTableAdapter.Update(Me.Database1DataSet)
Timer2.Enabled = True
TransNameLB.Items.Add(.Text)
TransPriceLB.Items.Add(PriceTextBox.Text)
End With
Dim sum As Double
For x As Integer = 0 To TransPriceLB.Items.Count - 1
sum += Val(TransPriceLB.Items.Item(x).ToString)
Next
TextBox1.Text = sum.ToString
QTYDrinksTB.Text = TransNameLB.Items.Count
End If