Menu item binding from SQL database - WPF/C#

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C#

XAML

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database

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Hello Developers,
I have a problem with a WPF/C# menu item. I want to make the menu items populate from a SQL database. I have the following code. I'm likely missing somehting in the XAML to bind the data from the database to the window, but let's see what you think.

C# Snippet

const string sql = "SELECT DISTINCT [PT].[PhysTypeCode], [PT].[PhysTypeDesc], 0 AS [ParentID] FROM [dbo].[PhysicianTypes] AS [PT] WHERE [PT].[PhysTypeDesc] <> '-- Select --' ORDER BY [PT].[PhysTypeDesc] ASC;";
			Log.Debug("SP: " + sql + " for GetPhysTypes()");
			Log.Debug("Dbconn called and created for GetPhysTypes()");
			var connectionString = Settings.Default.Dbconn;
			using (var conn = new SqlConnection(connectionString))
			using (var cmd = new SqlCommand(sql, conn))
			{
				try
				{
					conn.Open();
					using (var adapter = new SqlDataAdapter(cmd))
					{
						var ds = new DataSet();
						var dt = new DataTable();
						adapter.Fill(ds);
						dt = ds.Tables[0];
						var mbar = dt.Select("ParentID=" + 0);

						foreach (var dr in mbar)
						{
							MiTypeAc.Items.Add(new MenuItem(dr["PhysTypeDesc"].ToString()));
						}
						Log.Debug("Command executed and reader completed for GetPhysTypes()");
											}
				}
				catch (SqlException ex)
				{...//more code in the catch, but not important here...

Calling GetPhysTypes

private void MiTypeAc_Loaded(object sender, System.Windows.RoutedEventArgs e)
{
    GetPhysTypes();
}

Now the part I really hate (mainly because I don't fully understand binding that well)
XMAL

<MenuItem Header="By Type">
<MenuItem x:Name="MiTypeAc" Header="A-C" ItemsSource="{Binding PhysTypeDesc}" Loaded="MiTypeAc_Loaded"/>
</MenuItem>

What happens is the window loads, I navigate to the menu, and the menu opens with a large area (vertical about what 21 records would look like - 21 records being the count of records from the SQL statement), but it's empty. So the query works, the C# is working (i guess), but the binding of data to the window is not... it's empty...

thoughts?

Update: I am getting data from the SQL, so it has to be an issue getting data from C# to XAML...

Debugger: mbar = {System.Data.DataRow[21]}
Debugger: mbar[0].ItemArray[1] = "Anesthesiology Assistant"

What I have tried:

The above code. I really don't want to hard code the values since the users can, and will, add descriptions and types to the system as time goes on.