inputPanel DisableOnNoData

inputPanel DisableOnNoData

Posted by: kbj on 29 May 2018, 4:32 pm EST

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  kbj

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  Posted 29 May 2018, 4:32 pm EST

  It is unclear how DisableOnNoData works. I would think in the below example, the InputTextBox1 would be disabled.

  Public Class Form1
  
  Public lCustomers As New List(Of classCustomer)
  
  Private bsCustomers As New BindingSource
  
  Private Sub Form1_Load(sender As Object, e As EventArgs) Handles Me.Load
  
  bsCustomers.DataSource = lCustomers
  
  InputTextBox1.DisableOnNoData = True
  
  InputTextBox1.DataBindings.Add(“Text”, bsCustomers, “customerName”)
  
  End Sub
  
  End Class
  
  Public Class classCustomer
  
  Public Property customerName As String
  
  End Class

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  esha.dhir

  

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  Posted 30 May 2018, 12:20 am EST

  Hello,

  It is not enough to assign the DataSource property of InputTextBox. You also need to assign its DataField property to make the control data bound. The modified code snippet is:

  
  Public Class Form1
  Public lCustomers As New List(Of classCustomer)
      Private bsCustomers As New BindingSource
  
      Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
          bsCustomers.DataSource = lCustomers
          InputTextBox1.DisableOnNoData = True
          'InputTextBox1.DataBindings.Add("Text", bsCustomers, "customerName")
          InputTextBox1.DataSource = bsCustomers
          InputTextBox1.DataField = "customerName"
      End Sub
  End Class
  Public Class classCustomer
      Public Property customerName As String
  End Class
  

  This will leave the InputTextBox disabled in case there is no data.

  Best Regards,
  
  Esha