以下的源碼裡分別給出了將DBF,XLS,XML,MDB文件導入C#DataGrid的方法,供各位參考。
//PutInDataSet.cs的源碼
using System;
using System.Data.Odbc;
using System.Data.OleDb;
using System.Data;
using System.Collections;
namespace PutInDataSet
{
/// <summary>
/// DataSetTransIn 的摘要說明。
/// </summary>
public class PutInDataSet
{
/// <summary>
/// 傳入的文件變量
/// </summary>
private DataSet my_Ds;//存放文件的數據集
private string my_Err;//錯誤信息
private string my_TableName;//傳入的文件名
private TableType my_TableType;//傳入的文件類型
private string my_TablePath;//傳入的文件路徑
private int my_TableIndex;//表的索引
OleDbCommandBuilder my_Builder;//命令串
/// <summary>
/// 數據庫連接變量
/// </summary>
private string my_StrConnection;//連接字符串
private string my_StrSelect;//select語句
/// <summary>
/// 可以處理的文件類型
/// </summary>
public enum TableType
{
MDB,XLS,DBF,DOC,TXT,XML,HTML
}
public PutInDataSet(string TablePath,string TableName,TableType TableType)
{
///<summary>
///獲得傳入的路徑,文件名及文件類型；
///</summary>
this.my_TablePath=TablePath;//路徑
this.my_TableName=TableName;//文件名
this.my_TableType=TableType;//文件類型
}
public DataSet Convert()
{
DataSet iRtn_Ds=new DataSet();
switch (this.my_TableType)
{
case TableType.DBF:
iRtn_Ds = this.DbfToDs();
break;
case TableType.MDB:
iRtn_Ds = this.MdbToDs();
break;
case TableType.XLS:
iRtn_Ds = this.XlsToDs();
break;
case TableType.XML:
iRtn_Ds = this.XmlToDs();
break;
}
return iRtn_Ds;
}
///<summary>
///將DBF文件放入DataSet
///</summary>
private DataSet DbfToDs()
{
//數據庫連接定義
OdbcConnection my_conn; //數據連接
OdbcDataAdapter my_Adapter;//數據適配器
//數據庫連接
this.my_StrConnection= "Driver={Microsoft Visual FoxPro Driver};SourceType=DBF;SourceDB=" + this.my_TablePath;
this.my_StrSelect="SELECT * FROM " + this.my_TableName;
my_conn = new OdbcConnection(this.my_StrConnection);
my_conn.Open();
my_Adapter = new OdbcDataAdapter(this.my_StrSelect,my_conn);
this.my_Ds=new DataSet();
//填充數據集
my_Adapter.Fill(this.my_Ds,this.my_TableName);
return this.my_Ds;
}
///<summary>
///將MDB文件放入DataSet
///</summary>
private DataSet MdbToDs()
{
//數據庫連接定義
OleDbConnection my_conn;
OleDbDataAdapter my_Adapter;
//數據庫連接
this.my_StrConnection= "Provider=Microsoft.JET.OLEDB.4.0;data source=" + this.my_TablePath;
this.my_StrSelect="SELECT * FROM " + this.my_TableName;
my_conn = new OleDbConnection(this.my_StrConnection);
my_conn.Open();
my_Adapter = new OleDbDataAdapter(this.my_StrSelect,my_conn);
this.my_Ds=new DataSet();
//填充數據集
my_Adapter.Fill(this.my_Ds,this.my_TableName);
return this.my_Ds;
}
///<summary>
///將XML文件放入DataSet
///</summary>
private DataSet XmlToDs()
{
//填充數據集
this.my_Ds=new DataSet();
this.my_Ds.ReadXml(this.my_TablePath+this.my_TableName,XmlReadMode.ReadSchema);
this.my_Ds.DataSetName="XmlData";
return this.my_Ds;
}
///<summary>
///將Excel文件放入DataSet
///</summary>
private DataSet XlsToDs()
{
OleDbConnection my_conn;
OleDbDataAdapter my_Adapter;
//數據庫連接
this.my_StrConnection= "Provider=Microsoft.JET.OLEDB.4.0;Extended Properties=Excel 8.0;data source="+this.my_TablePath+this.my_TableName;
this.my_StrSelect="SELECT * FROM [SHEET1$]";
my_conn = new OleDbConnection(this.my_StrConnection);
my_conn.Open();
my_Adapter = new OleDbDataAdapter(this.my_StrSelect,my_conn);
this.my_Builder=new OleDbCommandBuilder(my_Adapter);
this.my_Ds=new DataSet();
//填充數據集
my_Adapter.Fill(this.my_Ds,"ExcelData");
return this.my_Ds;
}
}
}
//Form_PutInDataSet.cs的源碼
using System;
using System.Data;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using DataAccess.SysManage;
using BusinessRules;
using DataSetTrans;
namespace WinForm.Common
{
/// <summary>
/// FormDesktop 的摘要說明。
/// </summary>
public class FormDesktop : System.Windows.Forms.Form
{
private WinForm.Common.DeskTop deskTop1;
private System.Windows.Forms.Button button1;
/// <summary>
/// 必需的設計器變量。
/// </summary>
private System.ComponentModel.Container components = null;
private DataSet m_ds = new DataSet();
private System.Windows.Forms.DataGrid dataGrid1; //數據源
private string m_TableName; //外部文件名稱
public FormDesktop()
{
//
// Windows 窗體設計器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 調用後添加任何構造函數代碼
//
}
/// <summary>
/// 清理所有正在使用的資源。
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// 設計器支持所需的方法 - 不要使用代碼編輯器修改
/// 此方法的內容。
/// </summary>
private void InitializeComponent()
{
this.deskTop1 = new WinForm.Common.DeskTop();
this.button1 = new System.Windows.Forms.Button();
this.dataGrid1 = new System.Windows.Forms.DataGrid();
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
this.SuspendLayout();
//
// deskTop1
//
this.deskTop1.BackColor = System.Drawing.SystemColors.Desktop;
this.deskTop1.Location = new System.Drawing.Point(168, 440);
this.deskTop1.Name = "deskTop1";
this.deskTop1.Size = new System.Drawing.Size(16, 24);
this.deskTop1.TabIndex = 0;
//
// button1
//
this.button1.Location = new System.Drawing.Point(256, 216);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(88, 40);
this.button1.TabIndex = 1;
this.button1.Text = "GetData";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// dataGrid1
//
this.dataGrid1.DataMember = "";
this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dataGrid1.Location = new System.Drawing.Point(192, 40);
this.dataGrid1.Name = "dataGrid1";
this.dataGrid1.Size = new System.Drawing.Size(216, 152);
this.dataGrid1.TabIndex = 2;
//
// FormDesktop
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.BackColor = System.Drawing.SystemColors.AppWorkspace;
this.ClientSize = new System.Drawing.Size(624, 485);
this.Controls.Add(this.dataGrid1);
this.Controls.Add(this.button1);
this.Controls.Add(this.deskTop1);
this.Name = "FormDesktop";
this.Text = "系統控制台";
this.Resize += new System.EventHandler(this.FormDesktop_Resize);
this.Load += new System.EventHandler(this.FormDesktop_Load);
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
this.ResumeLayout(false);
}
#endregion
private void FormDesktop_Load(object sender, System.EventArgs e)
{
}
/// <summary>
/// 當窗口改變大小時自動居中。
/// </summary>
private void FormDesktop_Resize(object sender, System.EventArgs e)
{
if (this.WindowState != FormWindowState.Minimized)
{
if (this.Width > this.deskTop1.Width && this.Height > this.deskTop1.Height )
{
this.deskTop1.Left = (this.Width - this.deskTop1.Width) / 2;
this.deskTop1.Top = (this.Height- this.deskTop1.Height)/ 2;
}
}
}
private void button1_Click(object sender, System.EventArgs e)
{
DataSet out_Ds=new DataSet();
PutInDataSet obj=new PutInDataSet("文件路徑","文件名",PutInDataSet.TableType.文件格式);//調用PutInDataSet類
out_Ds=obj.Convert();//轉換到DataSet中
this.dataGrid1.DataSource=out_Ds.Tables["表名"];//在DataGrid中顯示
}
}
}
