DataRow confusion!!!

[ashishraj14]

I passed DataRow in the constructor of the form2 as follow

Public Sub New(ByVal row As DataRow)
MyBase.New()

'This call is required by the Windows Form Designer.
InitializeComponent()

'Add any initialization after the InitializeComponent() call

End Sub

Then on form load event of form2, I set the text property of textbox to value from datarow as follows

txtCustID.Text = drw("Cust_ID")

When I edited value in the textbox, the changes where written back to the DataGrid. How it could happen, even though I passed row ByVal and not by ByRef?


Secondly, I tried binding DataRow to TextBox as follow

txtCustID.DataBindings.Add("Text", drw, "Cust_ID")

But, it resulted in error: "Cannot bind to property or coulmn Cust_ID on DataSource"

What am I doing wrong?

Thanks

 

[ThatRickGuy]

Public Sub New(ByVal row As DataRow) 
MyBase.New() 

'This call is required by the Windows Form Designer. 
InitializeComponent() 

'Add any initialization after the InitializeComponent() call 

End Sub

You're not actually doing anything with the variable row here.

txtCustID.Text = drw("Cust_ID")

this line is referencing some other object. Do you have a global variable called drw?

What you probrably want to do is something like this:

private m_drRow as DataRow

Public Sub New(ByVal row As DataRow) 
MyBase.New() 

'This call is required by the Windows Form Designer. 
InitializeComponent() 

'Add any initialization after the InitializeComponent() call 

  m_drRow = Row
End Sub 

private sub Form_Load...
  txtCustID.Text = m_drRow("Cust_ID") 
  'or your binding here.
end sub

I'm not sure on the binding issue, I've never tried binding a row to an object.

-Rick

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