How do I get PasswordHash value?

[BobLewiston]

When I try to save a new (inserted) record via the following code:

DataRow row = dataTable.Rows [currRec];

// update data in DataSet from data entry WinForm
row.BeginEdit ();
row ["Title"] = txtTitle.Text;
row ["FirstName"] = txtFirstName.Te xt;
row ["MiddleName "] = txtMiddleName.T ext;
row ["LastName"] = txtLastName.Tex t;
row ["Suffix"] = txtSuffix.Text;
row ["Phone"] = txtPhone.Text;
row ["EmailAddre ss"] = txtEmailAddress .Text;
row.EndEdit ();

try
{
dataAdapter.Upd ate (dataSet, "Person.Contact ");
}
catch (System.Runtime .InteropService s.ExternalExcep tion exc)
{
MessageBox.Show (exc.Message);
}

I get the following exception message:

Cannot insert the value NULL into column 'PasswordHash', table 'AdventureWorks .Person.Contact '; column does not allow nulls. INSERT fails. The statement has been terminated.

How do I get an appropriate PasswordHash value that I can put it in the newly-created record I'm inserting into the database?

For what it’s worth, the environment I’m working in is:

32-bit
SQL Server 2008 Express with Advanced Services
database:SQL200 8 AdventureWorks (schema.table: Person.Contact)
SQL Server 2008 Management Studio Express
Visual C# 2008 Express