How to sort the DataGrid using an ArrayList as the DataSource

<asp:DataGrid AllowSorting =True OnSortCommand='SortData' id='DataGrid1' runat='server' EnableViewState='false'></asp:DataGrid>

VB.NET

Private Sub Page_Load(sender As Object, e As System.EventArgs)
   ’ Put user code to initialize the page here
   	Dim arrlist As New ArrayList()
	arrlist.Add('Tips')
	arrlist.Add('Tricks')
	arrlist.Add('Code')
	arrlist.Add('Samples')
	DataGrid1.DataSource = arrlist
	DataGrid1.DataBind()
	ViewState('AList') = arrlist
End Sub ’Page_Load

Protected Sub SortData([source] As [Object], e As System.Web.UI.WebControls.DataGridSortCommandEventArgs)
	If ViewState('SortOrder') Is Nothing Then
      		SortAsc()
   	Else
		If ViewState('SortOrder').ToString() = ' ASC' Then
			SortDesc()
      		Else
         			SortAsc()
      		End If
   	End If
End Sub ’SortData
 
Sub SortAsc()
	ViewState('SortOrder') = ' ASC'
	CType(ViewState('AList'), ArrayList).Sort()
	DataGrid1.DataSource = ViewState('AList')
	DataGrid1.DataBind()
	ViewState('Sort') = 'DESC'
End Sub ’SortAsc

Sub SortDesc()
	ViewState('SortOrder') = ' DESC'
	CType(ViewState('AList'), ArrayList).Sort()
	CType(ViewState('AList'), ArrayList).Reverse()
	DataGrid1.DataSource = ViewState('AList')
	DataGrid1.DataBind()
	ViewState('Sort') = 'ASC'
End Sub ’SortDesc

C#

private void Page_Load(object sender, System.EventArgs e)
{
	// Put user code to initialize the page here
	ArrayList arrlist = new ArrayList ();
	arrlist.Add ('Tips');
	arrlist.Add ('Tricks');
	arrlist.Add ('Code');
	arrlist.Add ('Samples');
	DataGrid1.DataSource = arrlist ;
	DataGrid1.DataBind ();
	ViewState['AList'] = arrlist ;
}

protected void SortData(Object source,  System.Web.UI.WebControls.DataGridSortCommandEventArgs  e )
{
	if (ViewState['SortOrder'] ==null)
	{
		SortAsc();
	}
	else if (ViewState['SortOrder'].ToString () == ' ASC' )
	{
		SortDesc();
	}
	else
	{
		SortAsc();
	}
}

void SortAsc()
{
	ViewState['SortOrder'] = ' ASC';
	((ArrayList)ViewState['AList']).Sort ();
	DataGrid1.DataSource = ViewState['AList'];
	DataGrid1.DataBind ();
	ViewState['Sort']='DESC';
}

void SortDesc()
{
	ViewState['SortOrder'] = ' DESC';
	((ArrayList)ViewState['AList']).Sort ();
	((ArrayList)ViewState['AList']).Reverse ();
	DataGrid1.DataSource = ViewState['AList'];
	DataGrid1.DataBind ();
	ViewState['Sort']='ASC';
}