Problem in a XML file

[Ferrari, Eduardo]

Hi all!

I have a XML file that is read by a C# program.
The file looks like this:

<EMailList>
<email>ed*************@misys.com</email>
</EMailList>
<EMailList>
<email>ro***********@misys.com</email>
</EMailList>

But I want that this file look like this:

<EMailList>
<email>ed*************@misys.com</email>
<email>ro***********@misys.com</email>
</EMailList>

But, when I do that my program blows up.

The code to read the file is that:

public class COpicsXMLOperations
{

#region XMLConfigFile
static public DataSet dsOpicsSystemBuilder;
static public DataSet dsOpicsSBUsers;
#endregion

static public DataSet DS_OpicsSystemBuilder
{
get
{
if (dsOpicsSystemBuilder==null)
{
dsOpicsSystemBuilder = new DataSet();

// Creating EMailList table
DataTable dtEMailList = new DataTable("EMailList");
DataColumn dcEMail = new DataColumn("email");
dtEMailList.Columns.Add(dcEMail);
dsOpicsSystemBuilder.Tables.Add(dtEMailList);
}
return dsOpicsSystemBuilder;
}
}

private void FrmProcParam_Load(object sender, System.EventArgs e)
{
// Clear the list to avoid duplicates
clb_EMails.Items.Clear();
this.txt_Emails.Focus();

// Read the e-mails against the XML file
COpicsXMLOperations.DS_OpicsSystemBuilder.Tables.C lear();
COpicsXMLOperations.DS_OpicsSystemBuilder.ReadXml( "OpicsSystemBuilder.xml");
This is the line that blows up.

The error is:

An unhandled exception of type 'System.ArgumentException' occurred in
system.data.dll

Additional information: Cannot remove a table that has existing relations.
Remove relations first.

The program '[2304] OpicsSystemBuilder.exe' has exited with code 0 (0x0).

Anybody can help me with this?

Thanks!

Eduardo

--
Eduardo de Morais Ferrari
Misys'''''''' OPICS Project
Stefanini IT Solutions
White Plains, NY
Phone: [phone]
Cell: [phone]
ed*************@misys.com