Problems with OleDb updating

[Bombdrop]

Can any one please help me out, how come this does not update my dataBases it riases an exception, please plase help a VB6 refugee

using System;
using System.Drawing;
using System.Windows.Forms;
using System.Data;
using SQL= System.Data.OleDb;

namespace OleDbTest 
{
	class MainForm : System.Windows.Forms.Form
	{
		private System.Windows.Forms.TreeView treeView;
		private System.Windows.Forms.ListBox listBox;
		private System.Windows.Forms.Button button;
		
		public MainForm()
		{
			InitializeComponent();
		}
	
		// This method is used in the forms designer.
		// Change this method on you own risk
		void buttonClick(object sender, System.EventArgs e)
		{
			this.treeView.Nodes.Clear();
			//Set up the connection
			SQL.OleDbConnection oCon = new SQL.OleDbConnection("file Name = c:\\test.udl");
			
			//Set up the command
			SQL.OleDbCommand oCmd = new SQL.OleDbCommand("select * from People",oCon);
			
			//Open the connection
			//oCon.Open();
			
			//Set up a DatAdapter  filling it with a command
			SQL.OleDbDataAdapter oAdp = new SQL.OleDbDataAdapter(oCmd);
			
			//Create a DataSet Object
			DataSet oData = new DataSet();
			
			//Fill the DataSet With information from the 
			//DataAdapter.
			oAdp.Fill(oData,"People");
			
			//Create a Table object and fill it from the 
			//DataSet Object.
			DataTable oTable = oData.Tables[0];
			
		
			//Creat a TreeNodeObject  and set its Text
			TreeNode oNode= new TreeNode("People");
			
			try{
			//Traverse the table object Row and fill a listbox
			 
			foreach(DataRow oRow in oTable.Rows)
			{
				//Add the names to listbox
				this.listBox.Items.Add(oRow [1] );
				//Add the names to the Node object
				oNode.Nodes.Add(oRow[1].ToString());

			}
			
			//Add the Node OBject to the Treeview
			this.treeView.Nodes.Add(oNode);
				
				DataRow oRow1 = oTable.Rows[3];
				oRow1.BeginEdit();
				oRow1[1]="Sod off";
				oRow1.EndEdit();
				
				
			DataSet oChanges = oData.GetChanges(DataRowState.Modified);
				if (oChanges.HasErrors)
				{
					MessageBox.Show("ERRORS In GET MOD")	;
				}
				else{
					MessageBox.Show(" NO ERRORS In GET MOD");
				}
			oData.Merge(oChanges);
				
			oAdp.Update(oChanges);//.Update(oData,"People");
				
			}//End Try
			
				catch( Exception ex)
				{
					MessageBox.Show(ex.ToString());
				}
			
		}

[DevGrp]

What is the error?

[Pirate]

What don't you use Update Command if possible ??

[Bombdrop]

System.InvalidOperationException: Update unable to find TableMapping['Table'] or DataTable 'Table'.
at System.Data.Common.DbDataAdapter.Update(DataSet dataSet, String srcTable)
at System.Data.Common.DbDataAdapter.Update(DataSet dataSet)
at OleDbTest.MainForm.buttonClick(Object sender, EventArgs e) in C:\Documents and Settings\Administrator\My Documents\SharpDevelop Projects\DataBase\MainForm.cs:line 101

Above is the exception messgae I get when i try to updat my my DB via the update method of the DataAdapter

[Pirate]

How many tables have you got in your db ? It's maybe you are referring to a table that's not exist in the dataset . I can't tell though