title: Update unable to find TableMapping['Table'] or DataTable 'Table'
body: <p>I have a table named "users" with some basic fields like name, address, city and mobile.</p>
  
  <p>Now on form load I'm trying to show all the rows in a datagridview as shown below:</p>
  
  <pre><code>Dim strConnection As String = "Data Source=.\sqlexpress;Initial Catalog=Customers;Integrated Security=True"
  Dim con As New SqlConnection(strConnection)
  con.Open()
  Dim myadapter As New SqlDataAdapter
  myadapter = New SqlDataAdapter("Select name, address, city and mobile from Users", con)
  Dim ds As New DataSet
  myadapter.Fill(ds, "Users")
  UsersDataGridView.DataSource = ds.Tables(0)
  </code></pre>
  
  <p>Till here its working fine.</p>
  
  <p>Now I would like to update the fields from gridview and tried the below code but it gives me an error as :</p>
  
  <p><strong><em><code>Update unable to find TableMapping['Table'] or DataTable 'Table'.</code></em></strong></p>
  
  <pre><code> Private Sub btnUpdate_Click(sender As Object, e As EventArgs) Handles btnUpdate.Click
       Dim cmdbl As New SqlCommandBuilder(myadapter)
       myadapter.Update(ds, "Users")
   End Sub
  </code></pre>