Data Type Mismatch In Inserting A Numeric Value?

I am using C# windows based GUI and MS-Access as my database. Unfortunately, I cannot insert a record with a numeric value, this means that one of my field is a number data type. Below is my code;

Code:

strItemCode = lvProducts.Items[i].SubItems[0].Text.Trim();
iQty = int.Parse(lvProducts.Items[i].SubItems[2].Text);
cmAdjustedItems.CommandText = "INSERT INTO tblAdjustedItems VALUES(@itemcode, @adjustmentid, @qty)";
cmAdjustedItems.Parameters.AddWithValue("@itemcode", strItemCode);
cmAdjustedItems.Parameters.AddWithValue("@adjustmentid", strAdjustmentID);
cmAdjustedItems.Parameters.AddWithValue("@qty", iQty);
cmAdjustedItems.ExecuteNonQuery();

All the variables in my code were properly declared.