In one of the 4 output columns of my Datagrid, I have a Yes/No Boolean
field.

I'd like to show a graphical tick (e.g. tick.jpg) or a cross e.g.
(cross.jpg) instead of True/False or Yes/No.

How could I do that? Here's the code:

</head>

<%@ Page language="VB" Debug="true" %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.OleDb" %>

<script language="VB" runat="server">

Sub Page_Load(Sender as Object, E as EventArgs)

 Dim oConn As OleDbConnection
 Dim oComm As OleDbDataAdapter
 Dim sConn As String
 Dim sComm As String
 Dim oDataSet As New DataSet

 'Build the connection string
 sConn = "Provider=Microsoft.Jet.OLEDB.4.0;"
 sConn += "Data Source=D:\inetpub\www\mysite\myaccessdb.mdb;"
 sConn += "Persist Security Info=False"

 'Build the SQL string
 sComm = "SELECT qryDataGrid01.* "
 sComm += "FROM qryDataGrid01;"

 'Create the connection and command objects
 oConn = New OleDbConnection(sConn)
 oComm = New OleDbDataAdapter(sComm, oConn)

 'Fill the dataset with the results of the query
 oComm.Fill(oDataSet, "qryDataGrid01")

 'Set the grid source to the dataset and bind the data
 oGrid.DataSource=oDataSet.Tables("qryDataGrid01").DefaultView
 oGrid.DataBind()

End Sub
</script>

<asp:DataGrid runat="server" id="oGrid" BackColor="#eeeeee"
HorizontalAlign="Left">
<HeaderStyle Font-Bold="True"/>
<AlternatingItemStyle BackColor="White" />
</asp:datagrid>