Entering data into a datagrid - vb.net

Question

I am using Visual Basic 2008. I am trying to enter 2 columns of text into a datagrid using a button.
When i press the button a variable and a data associated to the variable should be entered into 2 columns of datagrid.
The code i am using is:
Public Class Entering_the_rates
Public Class Datagrid
Private category As String
Public Property getcategory() As String
Get
Return category
End Get
Set(ByVal value As String)
category = value
End Set
End Property
Private price As Decimal
Public Property getprice() As Decimal
Get
Return price
End Get
Set(ByVal value As Decimal)
price = value
End Set
End Property
End Class
Private Sub Entering_the_rates_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
datagridadult() as new Datagrid (category, price)
End Sub
End Class
is this syntax right or wrong.
I also need a sample code on how to call a datagrid i have declared . Please help me

Answer 1

You need a constructor in your class:
Public Class Datagrid
Private _category As String
Public Property getcategory() As String
Get
Return category
End Get
Set(ByVal value As String)
category = value
End Set
End Property
Private _price As Decimal
Public Property getprice() As Decimal
Get
Return price
End Get
Set(ByVal value As Decimal)
price = value
End Set
End Property
Public Sub New(byval category as string, byval price as decimal)
_category = category
_price = price
End Sub
End Class
Your private variables behind your properties should start with an underscore too, see here: http://10rem.net/articles/net-naming-conventions-and-programming-standards---best-practices this makes assigning them in the constructor easier. You could also use autoimplemented properties, these auto create the _ behind variables for you (though they do not show in intellisense).