PDA端的数据库一般采用的是sqlce数据库
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PDA端的数据库一般采用的是sqlce数据库
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PDA端的數(shù)據(jù)庫一般采用的是sqlce數(shù)據(jù)庫,這樣與PC端的sql2000中的數(shù)據(jù)同步就變成了一個(gè)問題,如在PDA端處理,PDA端的內(nèi)存,CPU等都是一個(gè)制約因素,其次他們的一個(gè)連接穩(wěn)定及其間的數(shù)據(jù)傳輸也是一個(gè)難點(diǎn).本例中通過在PC端的轉(zhuǎn)化后再?gòu)?fù)制到PDA上面,這樣,上面所有的問題都得到了一個(gè)有效的控制.
一,創(chuàng)建項(xiàng)目,添加引用?
二 設(shè)計(jì)界面,編寫代碼
程序代碼
?
using?System;using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Text;
using?System.Windows.Forms;
using?System.Data.SqlServerCe;
using?OpenNETCF.Desktop.Communication;
using?System.IO;
using?System.Collections;
namespace?FyfjmFileChange
...{
????public?partial?class?MainForm?:?Form
????...{
????????string?_strCurrentDirectory?=?System.IO.Directory.GetCurrentDirectory();
????????RAPI?m_rapi?=?new?RAPI();
????????private?ArrayList?_arrData?=?new?ArrayList();
????????private?string[]?Temp;
????????private?int?sign;
????????public?MainForm()
????????...{
????????????InitializeComponent();
????????}
????????private?void?btOpenFile_Click(object?sender,?EventArgs?e)
????????...{
????????????if?(openFileDialog.ShowDialog()?==?DialogResult.OK)
????????????...{
????????????????tbSourceLoadFile.Text?=?openFileDialog.FileName;
????????????}
????????}
????????private?void?btSaveFile_Click(object?sender,?EventArgs?e)
????????...{
????????????if?(saveFileDialog.ShowDialog()?==?DialogResult.OK)
????????????...{
????????????????tbLoadPurposeFile.Text?=?saveFileDialog.FileName;
????????????}
????????}
????????private?void?btUp1Load_Click(object?sender,?EventArgs?e)
????????...{
????????????sign?=?1;
????????????lbDownLoadState.Text?=?"Status：Ready?Up……";
????????????Cursor.Current?=?Cursors.WaitCursor;
????????????DataAcess.DisConnection();
????????????if?(tbLoadPurposeFile.Text.Trim().Length?>?0?&&?tbPdaSourceFile.Text.Trim().Length?>?0)
????????????...{
????????????????try
????????????????...{
????????????????????lbDownLoadState.Text?=?"Status：Copying?the?File……";
????????????????????m_rapi.Connect(false,?-1);
????????????????????m_rapi.CopyFileFromDevice(_strCurrentDirectory?+?@"DataBaseFyfjm.sdf",?tbPdaSourceFile.Text.Trim()?+?@"DataBaseFyfjm.sdf",?true);
????????????????????m_rapi.Disconnect();
????????????????????lbDownLoadState.Text?=?"Status：Changing?the?File……";
????????????????????if?(FileFormCeDataBase(tbLoadPurposeFile.Text.Trim()))
????????????????????...{
????????????????????????MessageBox.Show("File?Update?successful",?"System?Message");
????????????????????????lbDownLoadState.Text?=?"Status:Successful……";
????????????????????}
????????????????????else
????????????????????...{
????????????????????????MessageBox.Show("DataFile?Change?Failed",?"System?Message");
????????????????????????lbDownLoadState.Text?=?"Status:Failed……";
????????????????????}
????????????????}
????????????????catch?(RAPIException?ex)
????????????????...{
????????????????????System.Windows.Forms.MessageBox.Show(ex.Message,?"System?Message");
????????????????????lbDownLoadState.Text?=?"Status:Failed……";
????????????????}
????????????}
????????????Cursor.Current?=?Cursors.Default;
????????}
????????private?void?btDownLoadStop_Click(object?sender,?EventArgs?e)
????????...{
????????????Close();
????????}
????????private?void?btDownLoad_Click(object?sender,?EventArgs?e)
????????...{
????????????Cursor.Current?=?Cursors.WaitCursor;
????????????if?(tbSourceLoadFile.Text.Trim().Length?>?0?&&?tbPdaPurposeFile.Text.Trim().Length?>?0)
????????????...{
????????????????if?(MessageBox.Show("Are?you?Sure?to?clear?the?SKU?data",?"System?Message",?MessageBoxButtons.OKCancel,?MessageBoxIcon.Question,?MessageBoxDefaultButton.Button2)?==?DialogResult.OK)
????????????????...{
????????????????????try
????????????????????...{
????????????????????????SqlCeConnection?_objConn?=?DataAcess.CreateConnection(_strCurrentDirectory?+?@"DataBaseFyfjm.sdf");
????????????????????????string?_strSQL?=?"delete?from?Enquiry";
????????????????????????SqlCeCommand?_objComm?=?_objConn.CreateCommand();
????????????????????????_objComm.CommandText?=?_strSQL;
????????????????????????_objComm.CommandType?=?CommandType.Text;
????????????????????????_objComm.ExecuteNonQuery();
????????????????????}
????????????????????catch?(SqlCeException?ex)
????????????????????...{
????????????????????????MessageBox.Show("Delete?data?Failed "?+?ex.Message,?"System?Message",?MessageBoxButtons.OK,?MessageBoxIcon.Exclamation,?MessageBoxDefaultButton.Button1);
????????????????????????return;
????????????????????}
????????????????}
????????????????if?(File.Exists(tbSourceLoadFile.Text.Trim())?&&?FileToCeDataBase(tbSourceLoadFile.Text.Trim()))
????????????????...{
????????????????????try
????????????????????...{
????????????????????????DataAcess.Dispose();???????????//在復(fù)制之前要關(guān)閉數(shù)據(jù)庫
????????????????????????//????????????????????????while?(DataAcess._objConn.State?==?ConnectionState.Closed)
????????????????????????//????????????????????????{
????????????????????????m_rapi.Connect(false,?-1);
????????????????????????m_rapi.CopyFileToDevice(_strCurrentDirectory?+?@"DataBaseFyfjm.sdf",?tbPdaPurposeFile.Text.Trim()?+?@"DataBaseFyfjm.sdf",?true);
????????????????????????m_rapi.Disconnect();
????????????????????????MessageBox.Show("Down?File?to?device?successful",?"System?Message");
????????????????????????//????????????????????????}
????????????????????}
????????????????????catch?(RAPIException?ex)
????????????????????...{
????????????????????????System.Windows.Forms.MessageBox.Show(ex.Message,?"System?Message");
????????????????????}
????????????????????//}
????????????????}
????????????????else
????????????????...{
????????????????????MessageBox.Show("The?SourceFile?not?exist",?"System?Message",?MessageBoxButtons.OK,?MessageBoxIcon.Asterisk);
????????????????}
????????????????Cursor.Current?=?Cursors.Default;
????????????????DownLoadProgressBar.Value?=?0;
????????????}
????????}
????????private?void?UpStop_Click(object?sender,?EventArgs?e)
????????...{
????????????Close();
????????}
????????private?bool?SaveTxt(string?strFilePath)
????????...{
????????????bool?_bResult?=?false;
????????????DataSet?_objDs?=?new?DataSet();
????????????try
????????????...{
????????????????SqlCeConnection?_objConn?=?DataAcess.CreateConnection(_strCurrentDirectory?+?@"DataBaseFyfjm.sdf");
????????????????SqlCeCommand?_objComm?=?_objConn.CreateCommand();
????????????????_objComm.CommandText?=?"SELECT?SKU?FROM?Take?where?Take_sign?=??'0'";
????????????????_objComm.CommandType?=?CommandType.Text;
????????????????SqlCeDataAdapter?_objDa?=?new?SqlCeDataAdapter(_objComm);
????????????????SqlCeCommandBuilder?_objCb?=?new?SqlCeCommandBuilder(_objDa);
????????????????_objDa.Fill(_objDs);
????????????????UpLoadProgressBar.Maximum?=?_objDs.Tables[0].Rows.Count;
????????????????UpLoadProgressBar.Step?=?0;
????????????????System.IO.StreamWriter?_objWriter?=?new?StreamWriter(strFilePath,?false,?System.Text.Encoding.UTF8);
????????????????int?i?=?0;
????????????????foreach?(DataRow?_objDr?in?_objDs.Tables[0].Rows)
????????????????...{
????????????????????string?_sLine?=?_objDr[0]?+?","?+?"1";
????????????????????_objWriter.WriteLine(_sLine);
????????????????????i++;
????????????????????UpLoadProgressBar.Value?=?i;
????????????????}
????????????????_objWriter.Close();
????????????????DataAcess.Close();
????????????????_objConn.Close();
????????????????_objConn.Dispose();
????????????????_objConn?=?null;
????????????????_objComm.Dispose();
????????????????_bResult?=?true;
????????????????
????????????}
????????????catch?(SqlCeException?ex)
????????????...{
????????????????MessageBox.Show(ex.Message,?"系統(tǒng)提示：",?MessageBoxButtons.OK,?MessageBoxIcon.Asterisk,?MessageBoxDefaultButton.Button1);
????????????}
????????????catch?(Exception?ex1)
????????????...{
????????????????MessageBox.Show(ex1.Message,?"系統(tǒng)提示：",?MessageBoxButtons.OK,?MessageBoxIcon.Asterisk,?MessageBoxDefaultButton.Button1);
????????????}
????????????return?_bResult;
????????}
????????private?bool?FileFormCeDataBase(string?strFilePath)
????????...{
????????????bool?_bResult?=?false;
????????????string[]?_strTemp?=?strFilePath.Split('.');
????????????string?_strFileStype?=?_strTemp[_strTemp.Length?-?1];
????????????switch?(_strFileStype.ToUpper())
????????????...{
????????????????/**//*case?"XLS":
????????????????????_bResult?=?SaveXLS(strFilePath);
????????????????????break;
????????????????case?"CSV":
????????????????????_bResult?=?SaveCSV(strFilePath);
????????????????????break;*/
????????????????case?"TXT":
????????????????????switch?(sign)
????????????????????...{
????????????????????????case?1:
????????????????????????????_bResult?=?SaveTxt(strFilePath);
????????????????????????????break;
????????????????????????case?2:
????????????????????????????_bResult?=?SumSaveTxt(strFilePath);
????????????????????????????break;
????????????????????????case?3:
????????????????????????????_bResult?=?AllSaveTxt(strFilePath);
????????????????????????????break;
????????????????????????default:
????????????????????????????break;
????????????????????}
????????????????????break;
????????????????default:
????????????????????...{
????????????????????????MessageBox.Show("File?Format?Error",?"System?Message",?MessageBoxButtons.OK,?MessageBoxIcon.Asterisk);
????????????????????????break;
????????????????????}
????????????}
????????????UpLoadProgressBar.Value?=?0;
????????????return?_bResult;
????????}
????????private?bool?FileToCeDataBase(string?strFilePath)
????????...{
????????????bool?_bResult?=?false;
????????????try
????????????...{
????????????????_arrData?=?new?ArrayList();
????????????????System.IO.StreamReader?objectReader?=?new?System.IO.StreamReader(strFilePath,?System.Text.Encoding.UTF8);
????????????????string?sLine?=?"";
????????????????while?(sLine?!=?null)
????????????????...{
????????????????????sLine?=?objectReader.ReadLine();
????????????????????if?(sLine?!=?null)
????????????????????...{
????????????????????????_arrData.Add(sLine);
????????????????????}
????????????????}
????????????????objectReader.Close();
????????????}
????????????catch?(Exception?ex)
????????????...{
????????????????MessageBox.Show(ex.Message,?"系統(tǒng)提示",?MessageBoxButtons.OK,?MessageBoxIcon.Asterisk,?MessageBoxDefaultButton.Button1);
????????????}
????????????SqlCeConnection?_objConn?=?DataAcess.CreateConnection(_strCurrentDirectory?+?@"DataBaseFyfjm.sdf");
????????????SqlCeCommand?_objComm?=?_objConn.CreateCommand();
????????????DownLoadProgressBar.Maximum?=?_arrData.Count;
????????????DownLoadProgressBar.Step?=?1;
????????????for?(int?j?=?0;?j?<?_arrData.Count;?j++)
????????????...{
????????????????Temp?=?_arrData[j].ToString().Trim().Split(',');
????????????????_objComm.CommandText?=?string.Format("insert?into?Enquiry(Code,Color,Size,Price,SKU)?values('{0}','{1}','{2}','{3}','{4}')",?Temp[0].Trim(),?Temp[1].Trim(),?Temp[2].Trim(),?Temp[3].Trim(),?Temp[4].Trim());
????????????????_objComm.ExecuteNonQuery();
????????????????DownLoadProgressBar.Value++;
????????????}
????????????_arrData.Clear();
????????????_bResult?=?true;
????????????_objConn.Close();
????????????_objConn.Dispose();
????????????_objConn?=?null;
????????????_objComm.Dispose();
????????????return?_bResult;
????????????
????????}
????????private?void?btUp2Load_Click(object?sender,?EventArgs?e)
????????...{
????????????sign?=?2;
????????????lbDownLoadState.Text?=?"Status：Ready?Up……";
????????????Cursor.Current?=?Cursors.WaitCursor;
????????????DataAcess.DisConnection();
????????????if?(tbLoadPurposeFile.Text.Trim().Length?>?0?&&?tbPdaSourceFile.Text.Trim().Length?>?0)
????????????...{
????????????????try
????????????????...{
????????????????????lbDownLoadState.Text?=?"Status：Copying?the?File……";
????????????????????m_rapi.Connect(false,?-1);
????????????????????m_rapi.CopyFileFromDevice(_strCurrentDirectory?+?@"DataBaseFyfjm.sdf",?tbPdaSourceFile.Text.Trim()?+?@"DataBaseFyfjm.sdf",?true);
????????????????????m_rapi.Disconnect();
????????????????????lbDownLoadState.Text?=?"Status：Changing?the?File……";
????????????????????if?(FileFormCeDataBase(tbLoadPurposeFile.Text.Trim()))
????????????????????...{
????????????????????????MessageBox.Show("File?Update?successful",?"System?Message");
????????????????????????lbDownLoadState.Text?=?"Status:Successful……";
????????????????????}
????????????????????else
????????????????????...{
????????????????????????MessageBox.Show("DataFile?Change?Failed",?"System?Message");
????????????????????????lbDownLoadState.Text?=?"Status:Failed……";
????????????????????}
????????????????}
????????????????catch?(RAPIException?ex)
????????????????...{
????????????????????System.Windows.Forms.MessageBox.Show(ex.Message,?"System?Message");
????????????????????lbDownLoadState.Text?=?"Status:Failed……";
????????????????}
????????????}
????????????Cursor.Current?=?Cursors.Default;
????????}
????????private?bool?SumSaveTxt(string?strFilePath)
????????...{
????????????bool?_bResult?=?false;
????????????DataSet?_objDs?=?new?DataSet();
????????????try
????????????...{
????????????????SqlCeConnection?_objConn?=?DataAcess.CreateConnection(_strCurrentDirectory?+?@"DataBaseFyfjm.sdf");
????????????????SqlCeCommand?_objComm?=?_objConn.CreateCommand();
????????????????_objComm.CommandText?=?"select?SKU,Count(*)as?Qty?from?Take?where?Take_sign?=?'0'?Group?By?SKU";
????????????????_objComm.CommandType?=?CommandType.Text;
????????????????SqlCeDataAdapter?_objDa?=?new?SqlCeDataAdapter(_objComm);
????????????????SqlCeCommandBuilder?_objCb?=?new?SqlCeCommandBuilder(_objDa);
????????????????_objDa.Fill(_objDs);
????????????????UpLoadProgressBar.Maximum?=?_objDs.Tables[0].Rows.Count;
????????????????UpLoadProgressBar.Step?=?0;
????????????????System.IO.StreamWriter?_objWriter?=?new?StreamWriter(strFilePath,?false,?System.Text.Encoding.UTF8);
????????????????int?i?=?0;
????????????????foreach?(DataRow?_objDr?in?_objDs.Tables[0].Rows)
????????????????...{
????????????????????string?_sLine?=?_objDr[0]?+?","?+?_objDr[1];
????????????????????_objWriter.WriteLine(_sLine);
????????????????????i++;
????????????????????UpLoadProgressBar.Value?=?i;
????????????????}
????????????????_objWriter.Close();
????????????????DataAcess.Close();
????????????????_objConn.Close();
????????????????_objConn.Dispose();
????????????????_objConn?=?null;
????????????????_objComm.Dispose();
????????????????_bResult?=?true;
????????????}
????????????catch?(SqlCeException?ex)
????????????...{
????????????????MessageBox.Show(ex.Message,?"系統(tǒng)提示：",?MessageBoxButtons.OK,?MessageBoxIcon.Asterisk,?MessageBoxDefaultButton.Button1);
????????????}
????????????catch?(Exception?ex1)
????????????...{
????????????????MessageBox.Show(ex1.Message,?"系統(tǒng)提示：",?MessageBoxButtons.OK,?MessageBoxIcon.Asterisk,?MessageBoxDefaultButton.Button1);
????????????}
????????????return?_bResult;
????????}
????????private?void?btTake_Click(object?sender,?EventArgs?e)
????????...{
????????????Cursor.Current?=?Cursors.WaitCursor;
????????????if?(MessageBox.Show("Are?you?Sure?to?clear?the?Stock?Take?data",?"System?Message",?MessageBoxButtons.OKCancel,?MessageBoxIcon.Question,?MessageBoxDefaultButton.Button2)?==?DialogResult.OK)
????????????...{
????????????????try
????????????????...{
????????????????????SqlCeConnection?_objConn?=?DataAcess.CreateConnection(_strCurrentDirectory?+?@"DataBaseFyfjm.sdf");
????????????????????string?_strSQL1?=?"delete?from?Take";
????????????????????SqlCeCommand?_objComm?=?_objConn.CreateCommand();
????????????????????_objComm.CommandText?=?_strSQL1;
????????????????????_objComm.CommandType?=?CommandType.Text;
????????????????????_objComm.ExecuteNonQuery();
????????????????????DataAcess.Dispose();???????????//在復(fù)制之前要關(guān)閉數(shù)據(jù)庫
????????????????????m_rapi.Connect(false,?-1);
????????????????????m_rapi.CopyFileToDevice(_strCurrentDirectory?+?@"DataBaseFyfjm.sdf",?tbPdaPurposeFile.Text.Trim()?+?@"DataBaseFyfjm.sdf",?true);
????????????????????m_rapi.Disconnect();
????????????????????MessageBox.Show("Delete?Successful!",?"System?Message",?MessageBoxButtons.OK,?MessageBoxIcon.Information,?MessageBoxDefaultButton.Button1);
????????????????}
????????????????catch?(SqlCeException?ex)
????????????????...{
????????????????????MessageBox.Show("Delete?data?Failed "?+?ex.Message,?"System?Message",?MessageBoxButtons.OK,?MessageBoxIcon.Exclamation,?MessageBoxDefaultButton.Button1);
????????????????????return;
????????????????}
????????????}
????????????Cursor.Current?=?Cursors.Default;
????????}
????????private?void?btAllclear_Click(object?sender,?EventArgs?e)
????????...{
????????????if?(MessageBox.Show("Are?you?Sure?to?clear?all?the?data",?"System?Message",?MessageBoxButtons.OKCancel,?MessageBoxIcon.Question,?MessageBoxDefaultButton.Button2)?==?DialogResult.OK)
????????????...{
????????????????try
????????????????...{
????????????????????SqlCeConnection?_objConn?=?DataAcess.CreateConnection(_strCurrentDirectory?+?@"DataBaseFyfjm.sdf");
????????????????????string?_strSQL?=?"delete?from?Take";
????????????????????string?_strSQL1?=?"delete?from?Enquiry";
????????????????????SqlCeCommand?_objComm?=?_objConn.CreateCommand();
????????????????????_objComm.CommandText?=?_strSQL;
????????????????????_objComm.CommandType?=?CommandType.Text;
????????????????????_objComm.ExecuteNonQuery();
????????????????????_objComm.CommandText?=?_strSQL1;
????????????????????_objComm.CommandType?=?CommandType.Text;
????????????????????_objComm.ExecuteNonQuery();
????????????????????DataAcess.Dispose();???????????//在復(fù)制之前要關(guān)閉數(shù)據(jù)庫
????????????????????m_rapi.Connect(false,?-1);
????????????????????m_rapi.CopyFileToDevice(_strCurrentDirectory?+?@"DataBaseFyfjm.sdf",?tbPdaPurposeFile.Text.Trim()?+?@"DataBaseFyfjm.sdf",?true);
????????????????????m_rapi.Disconnect();
????????????????????MessageBox.Show("Delete?Successful!",?"System?Message",?MessageBoxButtons.OK,?MessageBoxIcon.Information,?MessageBoxDefaultButton.Button1);
????????????????}
????????????????catch?(SqlCeException?ex)
????????????????...{
????????????????????MessageBox.Show("Delete?data?Failed "?+?ex.Message,?"System?Message",?MessageBoxButtons.OK,?MessageBoxIcon.Exclamation,?MessageBoxDefaultButton.Button1);
????????????????????return;
????????????????}
????????????}
????????}
????????private?void?btUp3Load_Click(object?sender,?EventArgs?e)
????????...{
????????????sign?=?3;
????????????lbDownLoadState.Text?=?"Status：Ready?Up……";
????????????Cursor.Current?=?Cursors.WaitCursor;
????????????DataAcess.DisConnection();
????????????if?(tbLoadPurposeFile.Text.Trim().Length?>?0?&&?tbPdaSourceFile.Text.Trim().Length?>?0)
????????????...{
????????????????try
????????????????...{
????????????????????lbDownLoadState.Text?=?"Status：Copying?the?File……";
????????????????????m_rapi.Connect(false,?-1);
????????????????????m_rapi.CopyFileFromDevice(_strCurrentDirectory?+?@"DataBaseFyfjm.sdf",?tbPdaSourceFile.Text.Trim()?+?@"DataBaseFyfjm.sdf",?true);
????????????????????m_rapi.Disconnect();
????????????????????lbDownLoadState.Text?=?"Status：Changing?the?File……";
????????????????????if?(FileFormCeDataBase(tbLoadPurposeFile.Text.Trim()))
????????????????????...{
????????????????????????MessageBox.Show("File?Update?successful",?"System?Message");
????????????????????????lbDownLoadState.Text?=?"Status:Successful……";
????????????????????}
????????????????????else
????????????????????...{
????????????????????????MessageBox.Show("DataFile?Change?Failed",?"System?Message");
????????????????????????lbDownLoadState.Text?=?"Status:Failed……";
????????????????????}
????????????????}
????????????????catch?(RAPIException?ex)
????????????????...{
????????????????????System.Windows.Forms.MessageBox.Show(ex.Message,?"System?Message");
????????????????????lbDownLoadState.Text?=?"Status:Failed……";
????????????????}
????????????}
????????????Cursor.Current?=?Cursors.Default;
????????}
????????private?bool?AllSaveTxt(string?strFilePath)
????????...{
????????????bool?_bResult?=?false;
????????????DataSet?_objDs?=?new?DataSet();
????????????try
????????????...{
????????????????SqlCeConnection?_objConn?=?DataAcess.CreateConnection(_strCurrentDirectory?+?@"DataBaseFyfjm.sdf");
????????????????SqlCeCommand?_objComm?=?_objConn.CreateCommand();
????????????????_objComm.CommandText?=?"select?SKU,Zone,Take_sign?from?Take";
????????????????_objComm.CommandType?=?CommandType.Text;
????????????????SqlCeDataAdapter?_objDa?=?new?SqlCeDataAdapter(_objComm);
????????????????SqlCeCommandBuilder?_objCb?=?new?SqlCeCommandBuilder(_objDa);
????????????????_objDa.Fill(_objDs);
????????????????UpLoadProgressBar.Maximum?=?_objDs.Tables[0].Rows.Count;
????????????????UpLoadProgressBar.Step?=?0;
????????????????System.IO.StreamWriter?_objWriter?=?new?StreamWriter(strFilePath,?false,?System.Text.Encoding.UTF8);
????????????????int?i?=?0;
????????????????foreach?(DataRow?_objDr?in?_objDs.Tables[0].Rows)
????????????????...{
????????????????????string?_sLine?=?_objDr[1]?+?","?+?_objDr[0]?+?","?+?"1"?+?","?+?_objDr[2];
????????????????????_objWriter.WriteLine(_sLine);
????????????????????i++;
????????????????????UpLoadProgressBar.Value?=?i;
????????????????}
????????????????_objWriter.Close();
????????????????DataAcess.Close();
????????????????_objConn.Close();
????????????????_objConn.Dispose();
????????????????_objConn?=?null;
????????????????_objComm.Dispose();
????????????????_bResult?=?true;
????????????}
????????????catch?(SqlCeException?ex)
????????????...{
????????????????MessageBox.Show(ex.Message,?"系統(tǒng)提示：",?MessageBoxButtons.OK,?MessageBoxIcon.Asterisk,?MessageBoxDefaultButton.Button1);
????????????}
????????????catch?(Exception?ex1)
????????????...{
????????????????MessageBox.Show(ex1.Message,?"系統(tǒng)提示：",?MessageBoxButtons.OK,?MessageBoxIcon.Asterisk,?MessageBoxDefaultButton.Button1);
????????????}
????????????return?_bResult;
????????}
????}
}
總結(jié)
以上是生活随笔為你收集整理的PDA端的数据库一般采用的是sqlce数据库的全部?jī)?nèi)容，希望文章能夠幫你解決所遇到的問題。
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