Use OleDbDataAdapter to insert into an Access db.

Question

I would like to insert some data into an Access Database.

DataTable dt = new DataTable();
String sql = string.Format("SELECT * FROM {0} where 1=0; ", tmap.SqlTableName);
string con = string.Format(conn, accessPath);
OleDbDataAdapter da = new OleDbDataAdapter(sql, con);
OleDbCommandBuilder cmdBuilder = new OleDbCommandBuilder(da);
da.InsertCommand = cmdBuilder.GetInsertCommand(true); // Returns "INSERT INTO test (int, bdate, amt, text, bit) VALUES (?, ?, ?, ?, ?)"
da.Fill(dt);
//Add data to the DateTable
for (int i = 0; i < rowCount; i++)
{
DataRow dr = dt.NewRow();
//....
dt.Rows.Add(dr);
}
da.Update(dt); //This is where things go south.

System.Data.OleDb.OleDbException
Message: Syntax error in INSERT INTO statement.
Source: Microsoft JET Database Engine.

If I change the insert command:

da.InsertCommand = new OleDbCommand("INSERT INTO test ([text]) VALUES (?)");

and change the incoming data to only have a single text value I get:

No value given for one or more required parameters.

Am I missing something?

Answer 1

1. Make sure all required columns are included in the insert query.

2. If It doesn't work then create a new method for inserting and follow this:

   OleDbConnection conn = new OleDbConnection (connectionString);

   OleDbCommand command = new OleDbCommand();
   command.Connection = conn;
   command.CommandText= "INSERT INTO myTable (col1, col2) VALUES (@p_col1, @p_col2)";
   command.Parameters.Add ("@p_col1", OleDbType.String).Value = textBox1.Text;
   ...
   command.ExecuteNonQUery();
   

Answer 2

The issue was in the data types. The code in the question works if the data types are compatible.