'creating new datatable
dim productTable as new datatable("Products")
'build the producs schema
products.columns.add("id", gettype(system.int32)
products.columns.add("Name", gettype(system.int32)
products.columns.add("Address", gettype(system.string)
products.columns.add("Tel", gettype(system.string)

'Seting up the ID column as the primary key
producttable.primarykey=new datacolumn() {productstable.columns("ID")}
producttable.columns("ID").autoincrement=true
producttable.columns("ID").autoincrementSeed=1
producttable.columns("ID").readonly=true

'now we are going to populate the datatable with data and for that we need datarow object
dim Guste as new Datarow=productstable.newrow()
'set the column values
Guste.item("ID")=1
Guste.item("Name")="Nasser M. Tabook"
Guste.item("Address")="Sultanate of oman, Dhofar, Salalah , p.o .box 2557"
Guste.item("Tel")="123456789"
'Add the datarow to the datatable
productstable.rows.add(Guste)
'
'
'
'
'------------------------------------------------------------------------------------
'Another way to fill the newlly created database with data 
'
'
'
dim Guste as datarow
gueste("Name")="Nasser M. Tabook"
gueste("Address")="Sultanate of oman, Dhofar, Salalah , p.o .box 2557"
gueste("Tel")="123456789"
producttable.rows.add("Guest")

'creating new xml file to hold the data
producttable.writexml("producttable.xml") 'or you can use producttable.writexml(Server.MapPath("producttable.xml")

This code will sow you how to create a new datatable

create a new datatable

aspnet

VB.NET