Connection between class, WPF-controls and parameters

Question

Hello,
How do I show an instance of a class on my form and how do I connect this instance to my parameters?
I have defined a class VV and added validation to it (I intend to use this class im multiple projects):
public class VV
private Int64 id;
private string code;
private string naam;
public Int64 Id
get { return this.id; }
set { this.id = value; }
public string Code
get { return this.code; }
set
if (String.IsNullOrEmpty(value))
throw new ApplicationException("Code is een verplicht veld");
else
this.code = value;
I have made a form in XAML-code and connected the fields with my class:
<TextBox Name="tbNaam" Width="Auto" Style="{StaticResource errorStyle}">
<TextBox.Text>
<Binding Source="{StaticResource vvData}" Path="Code" >
<Binding.ValidationRules>
<ExceptionValidationRule/>
</Binding.ValidationRules>
</Binding>
</TextBox.Text>
</TextBox>
This works fine.
To save the data in de database I use a stored procedure.
When I declare the parameter.value as:
insertCmd.Parameters.Add("code_ipar", OracleDbType.Varchar2);
insertCmd.Parameters["code_ipar"].Value = tbCode.Text; ====> this is the name of my textbox in XAML
everything wordks fine. But instead of the textbox I want to connect the parameter to the class VV.
(so I can use this in multiple places)
How do I do that??
I tried to create a new instance of the class VV:
VV newVV = new VV();
but when I do that, I can't see this record on the screen.
How do I get this to work?
Thanks in advance.

Answer 1

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