DataGridView Does Not Show Data Unless Cells Are Highlighted

Sergey,

There is no click event declared in my code. Here is the entirety of my code as pertaining to this form:

Public Class Form1

Private Sub Assign_Click(sender As Object, e As EventArgs) Handles Assign.Click, Button3.Click
Calls.ShowDialog()
End Sub



Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
If (TextBox1.Text <> "") Then
Calls.RANumber.Text = TextBox1.Text
Calls.ShowDialog()
Else
MsgBox("Please enter a T-Number")
End If


End Sub
Dim con As New OleDb.OleDbConnection
Dim dbProvider As String
Dim dbSource As String
Dim ds_OpenOrders As New DataSet
Dim dt As New DataTable
'Dim ds_Customers As New DataSet
Dim da As OleDb.OleDbDataAdapter
Dim sql As String
Dim tablename As String

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

dbProvider = "PROVIDER=Microsoft.ACE.OLEDB.12.0;"
dbSource = "Data Source = C:\Users\30015474\Desktop\service\Service20000TM.accde"
con.ConnectionString = dbProvider & dbSource
con.Open()

'Load customer information'
sql = "SELECT [RA Number], [Serial Number], [Model Number], Description, Manufacturer, Status FROM Model where Model.Status = 'O'"
da = New OleDb.OleDbDataAdapter(sql, con)
da.Fill(dt)
DataGridView1.DataSource = dt.DefaultView

con.Close()
'End Load Customer Information
End Sub




End Class

To clarify, highlighted. Below is the link of image as how I see it.

http://postimg.org/image/xmw5d9xl3/

How would I find how the click is being handled? I have not declare any handling for the click on the datagridview.