It is not easy to give you a correct answer because many details are missing from your question. In particular I don't know where you get the values to insert in the database. These values should be read from some kind of input textboxes and passed to your database table for insertion.
Just to fix your procedure called when you click the button (with notes where the missing info should be added by you looking at your input form)
private void WObutton_Click(object sender, EventArgs e)
{
string cmdText = "INSERT INTO TestFC (WOID, WONum, WODesc, WOStatus, ISD) VALUES (?,?,?,?,?)";
string cnString = @"Provider=Microsoft.ACE.OLEDB.12.0;
Data Source=C:\Users\Michael\Documents\Visual Studio 2012\Projects\WorkOrderTKv2\WorkOrderTKv2TestAccessdb.mdb";
using(OleDbConnection conn = new OleDbConnection(cnString))
using(OleDbCommand cmmd = new OleDbCommand(cmdText, conn))
{
conn.Open();
cmmd.Parameters.AddWithValue("@FirstParam", doubleValue); // Need a double for field ID
cmmd.Parameters.AddWithValue("@SeconParam", valueForWO); // Need a string
cmmd.Parameters.AddWithValue("@ThirdParam", valueForDESC);
cmmd.Parameters.AddWithValue("@FourthParam", valueForStatus);
cmmd.Parameters.AddWithValue("@FifthParam", valueForISD);
try
{
cmmd.ExecuteNonQuery();
MessageBox.Show("DATA ADDED");
conn.Close();
}
catch (OleDbException expe)
{
MessageBox.Show(expe.Message);
}
}
}
As I have said this is just a mock up of what should be your code. You need to retrieve the values to pass to your parameters from your input form