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這可能是一個愚蠢的問題，如果是的話我表示歉意。我有一個程序，用戶在其中輸入數據到一個窗體中並點擊一個按鈕。該按鈕將輸入的數據保存到MS Access 2010數據庫中。從數據庫程序中訪問保存的數據
我的問題是這樣的：點擊按鈕並保存數據後，如果我從Access打開數據庫，我應該能看到保存的數據嗎？當我運行該程序時，我沒有收到任何錯誤消息，並且一切似乎都正常，但是當我從Access打開表格時，它是空的。這是因爲從Access打開數據庫會打開一個不同的實例還是數據只是不被保存？
下面是從Form類代碼：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
namespace P90XProgram
{
public partial class AbRipperXForm : Form
{
private AbRipperXBOL busObject =
new AbRipperXBOL();
//default constructor
public AbRipperXForm()
{
InitializeComponent();
busObject.InitializeConnection();
}
//event handler for data input
private void btnEnterAbRipperXInfo_Click(object sender, EventArgs e)
{
//convert input data to int datatype and assign to properties
busObject.InAndOuts = int.Parse(this.txtInAndOuts.Text);
busObject.ForwardBicycles = int.Parse(
this.txtForwardBicycles.Text);
busObject.ReverseBicycles = int.Parse(
this.txtReverseBicycles.Text);
busObject.CrunchyFrog = int.Parse(this.txtCrunchyFrog.Text);
busObject.CrossLegWideLegSitups = int.Parse(
this.txtCrossLegWideLegSitups.Text);
busObject.FiferScissors = int.Parse(this.txtFiferScissors.Text);
busObject.HipRockNRaise = int.Parse(this.txtHipRockNRaise.Text);
busObject.PulseUpsHeelsToHeaven = int.Parse(
this.txtPulseUpsHeelsToHeaven.Text);
busObject.VUpRollUpCombos = int.Parse(this.txtVUpRollUpCombos.Text);
busObject.ObliqueVUps = int.Parse(this.txtObliqueVUps.Text);
busObject.LegClimbs = int.Parse(this.txtLegClimbs.Text);
busObject.MasonTwists = int.Parse(this.txtMasonTwists.Text);
//call method to save input data
busObject.SaveData();
//clear text boxes of data
this.txtInAndOuts.Clear();
this.txtForwardBicycles.Clear();
this.txtReverseBicycles.Clear();
this.txtCrunchyFrog.Clear();
this.txtCrossLegWideLegSitups.Clear();
this.txtFiferScissors.Clear();
this.txtHipRockNRaise.Clear();
this.txtPulseUpsHeelsToHeaven.Clear();
this.txtVUpRollUpCombos.Clear();
this.txtObliqueVUps.Clear();
this.txtLegClimbs.Clear();
this.txtMasonTwists.Clear();
}
這是我的業務對象層代碼：
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
using System.Configuration;
namespace P90XProgram
{
public class AbRipperXBOL
{
int inAndOuts = 0,
forwardBicycles = 0,
reverseBicycles = 0,
crunchyFrog = 0,
crossLegWideLegSitups = 0,
fiferScissors = 0,
hipRockNRaise = 0,
pulseUpsHeelsToHeaven = 0,
vUpRollUpCombos = 0,
obliqueVUps = 0,
legClimbs = 0,
masonTwists = 0;
OleDbConnection aConnection =
new OleDbConnection(
"Provider=Microsoft.ACE.OLEDB.12.0;" +
"Data Source=P90XDatabase.accdb;");
public AbRipperXBOL()
{
}
//property for inAndOuts variable
public int InAndOuts
{
get { return inAndOuts; }
set { inAndOuts = value; }
}
//property for forwardBicycles variable
public int ForwardBicycles
{
get { return forwardBicycles; }
set { forwardBicycles = value; }
}
//property for reverseBicycles variable
public int ReverseBicycles
{
get { return reverseBicycles; }
set { reverseBicycles = value; }
}
//property for crunchyFrog variable
public int CrunchyFrog
{
get { return crunchyFrog; }
set { crunchyFrog = value; }
}
//property for crossLegWideLegSitups variable
public int CrossLegWideLegSitups
{
get { return crossLegWideLegSitups; }
set { crossLegWideLegSitups = value; }
}
//property for fiferScissors variable
public int FiferScissors
{
get { return fiferScissors; }
set { fiferScissors = value; }
}
//property for hipRockNRaise variable
public int HipRockNRaise
{
get { return hipRockNRaise; }
set { hipRockNRaise = value; }
}
//property for pulseUpsHeelsToHeaven
public int PulseUpsHeelsToHeaven
{
get { return pulseUpsHeelsToHeaven; }
set { pulseUpsHeelsToHeaven = value; }
}
//property for vUpRollUpCombos variable
public int VUpRollUpCombos
{
get { return vUpRollUpCombos; }
set { vUpRollUpCombos = value; }
}
//property for obliqueVUps variable
public int ObliqueVUps
{
get { return obliqueVUps; }
set { obliqueVUps = value; }
}
//property for legClimbs variable
public int LegClimbs
{
get { return legClimbs; }
set { legClimbs = value; }
}
//property for masonTwists variable
public int MasonTwists
{
get { return masonTwists; }
set { masonTwists = value; }
}
public void InitializeConnection()
{
AbRipperXDAL.InitializeConnection(aConnection);
}
public void SaveData()
{
AbRipperXDAL.SaveData(this);
}
public static void BackToMainSchedule()
{
P90xScheduleForm f1;
if (Application.OpenForms["P90xScheduleForm"] == null)
{
f1 = new P90xScheduleForm();
f1.Name = "P90xScheduleForm";
}
else
{
f1 = Application.OpenForms["P90xScheduleForm"] as P90xScheduleForm;
}
f1.Show();
}
}
}
這是從我的數據訪問層的代碼：
using System;
using System.Collections.Generic;
using System.Collections;
using System.Text;
using System.Data;
using System.Data.OleDb;
namespace P90XProgram
{
class AbRipperXDAL
{
static OleDbConnection aConnection = null;
public static void InitializeConnection(OleDbConnection aDbConnection)
{
aConnection = aDbConnection;
aConnection.Open();
}
public static void SaveData(AbRipperXBOL busObject)
{
try
{
String sSQLCommand = "INSERT INTO AbRipperX (InAndOuts, " +
"ForwardBicycles, ReverseBicycles, CrunchyFrog, " +
"CrossLegWideLegSitups, Fiferscissors, HipRockNRaise, " +
"PulseUpsHeelsToHeaven, VUpRollUpCombos, ObliqueVUps, " +
"LegClimbs, MasonTwists) VALUES ('" + busObject.InAndOuts +
"','" + busObject.ForwardBicycles + "','" +
busObject.ReverseBicycles + "','" + busObject.CrunchyFrog +
"','" + busObject.CrossLegWideLegSitups + "','" +
busObject.FiferScissors + "','" + busObject.HipRockNRaise +
"','" + busObject.PulseUpsHeelsToHeaven + "','" +
busObject.VUpRollUpCombos + "','" + busObject.ObliqueVUps +
"','" + busObject.LegClimbs + "','" +
busObject.MasonTwists + "')";
if (aConnection.State == ConnectionState.Closed)
{
aConnection.Open();
}
OleDbCommand cmd = aConnection.CreateCommand();
cmd.CommandText = sSQLCommand;
// Execute the SQL command
cmd.ExecuteNonQuery();
aConnection.Close();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
}
}
聲音像數據沒有被保存。你確定你打開相同的Access數據庫嗎？ – Tim 2012-04-18 00:53:51
@Tim - 是的，我確定。我將數據庫保存在解決方案的調試文件中，並且從那裏開放。我目前只建立了一張桌子，所以我知道我打開了正確的桌子。 – 2012-04-18 01:11:36
然後它聽起來像數據沒有被保存。發佈您的保存方法的代碼，我們可能會幫助更多。 – Tim 2012-04-18 01:12:56