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public class ExcelHelper
{
#region 數據導出至Excel文件
/// </summary>
/// 導出Excel文件，自動返回可下載的文件流
/// </summary>
public static void DataTable1Excel(System.Data.DataTable dtData)
{
GridView gvExport = null;
HttpContext curContext = HttpContext.Current;
StringWriter strWriter = null;
HtmlTextWriter htmlWriter = null;
if (dtData != null)
{
curContext.Response.ContentType = "application/vnd.ms-excel";
curContext.Response.ContentEncoding = System.Text.Encoding.GetEncoding("gb2312");
curContext.Response.Charset = "utf-8";
strWriter = new StringWriter();
htmlWriter = new HtmlTextWriter(strWriter);
gvExport = new GridView();
gvExport.DataSource = dtData.DefaultView;
gvExport.AllowPaging = false;
gvExport.DataBind();
gvExport.RenderControl(htmlWriter);
curContext.Response.Write("<meta http-equiv=\"Content-Type\" content=\"text/html;charset=gb2312\"/>" + strWriter.ToString());
curContext.Response.End();
}
}
/// <summary>
/// 導出Excel文件，轉換為可讀模式
/// </summary>
public static void DataTable2Excel(System.Data.DataTable dtData)
{
DataGrid dgExport = null;
HttpContext curContext = HttpContext.Current;
StringWriter strWriter = null;
HtmlTextWriter htmlWriter = null;
if (dtData != null)
{
curContext.Response.ContentType = "application/vnd.ms-excel";
curContext.Response.ContentEncoding = System.Text.Encoding.UTF8;
curContext.Response.Charset = "";
strWriter = new StringWriter();
htmlWriter = new HtmlTextWriter(strWriter);
dgExport = new DataGrid();
dgExport.DataSource = dtData.DefaultView;
dgExport.AllowPaging = false;
dgExport.DataBind();
dgExport.RenderControl(htmlWriter);
curContext.Response.Write(strWriter.ToString());
curContext.Response.End();
}
}
/// <summary>
/// 導出Excel文件，并自定義文件名
/// </summary>
public static void DataTable3Excel(System.Data.DataTable dtData, String FileName)
{
GridView dgExport = null;
HttpContext curContext = HttpContext.Current;
StringWriter strWriter = null;
HtmlTextWriter htmlWriter = null;
if (dtData != null)
{
HttpUtility.UrlEncode(FileName, System.Text.Encoding.UTF8);
curContext.Response.AddHeader("content-disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, System.Text.Encoding.UTF8) + ".xls");
curContext.Response.ContentType = "application nd.ms-excel";
curContext.Response.ContentEncoding = System.Text.Encoding.UTF8;
curContext.Response.Charset = "GB2312";
strWriter = new StringWriter();
htmlWriter = new HtmlTextWriter(strWriter);
dgExport = new GridView();
dgExport.DataSource = dtData.DefaultView;
dgExport.AllowPaging = false;
dgExport.DataBind();
dgExport.RenderControl(htmlWriter);
curContext.Response.Write(strWriter.ToString());
curContext.Response.End();
}
}
/// <summary>
/// 將數據導出至Excel文件
/// </summary>
/// <param name="Table">DataTable對象</param>
/// <param name="ExcelFilePath">Excel文件路徑</param>
public static bool OutputToExcel(DataTable Table, string ExcelFilePath)
{
if (File.Exists(ExcelFilePath))
{
throw new Exception("該文件已經存在！");
}
if ((Table.TableName.Trim().Length == 0) || (Table.TableName.ToLower() == "table"))
{
Table.TableName = "Sheet1";
}
//數據表的列數
int ColCount = Table.Columns.Count;
//用于記數，實例化參數時的序號
int i = 0;
//創建參數
OleDbParameter[] para = new OleDbParameter[ColCount];
//創建表結構的SQL語句
string TableStructStr = @"Create Table " + Table.TableName + "(";
//連接字符串
string connString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + ExcelFilePath + ";Extended Properties=Excel 8.0;";
OleDbConnection objConn = new OleDbConnection(connString);
//創建表結構
OleDbCommand objCmd = new OleDbCommand();
//數據類型集合
ArrayList DataTypeList = new ArrayList();
DataTypeList.Add("System.Decimal");
DataTypeList.Add("System.Double");
DataTypeList.Add("System.Int16");
DataTypeList.Add("System.Int32");
DataTypeList.Add("System.Int64");
DataTypeList.Add("System.Single");
//遍歷數據表的所有列，用于創建表結構
foreach (DataColumn col in Table.Columns)
{
//如果列屬于數字列，則設置該列的數據類型為double
if (DataTypeList.IndexOf(col.DataType.ToString()) >= 0)
{
para[i] = new OleDbParameter("@" + col.ColumnName, OleDbType.Double);
objCmd.Parameters.Add(para[i]);
//如果是最后一列
if (i + 1 == ColCount)
{
TableStructStr += col.ColumnName + " double)";
}
else
{
TableStructStr += col.ColumnName + " double,";
}
}
else
{
para[i] = new OleDbParameter("@" + col.ColumnName, OleDbType.VarChar);
objCmd.Parameters.Add(para[i]);
//如果是最后一列
if (i + 1 == ColCount)
{
TableStructStr += col.ColumnName + " varchar)";
}
else
{
TableStructStr += col.ColumnName + " varchar,";
}
}
i++;
}
//創建Excel文件及文件結構
try
{
objCmd.Connection = objConn;
objCmd.CommandText = TableStructStr;
if (objConn.State == ConnectionState.Closed)
{
objConn.Open();
}
objCmd.ExecuteNonQuery();
}
catch (Exception exp)
{
throw exp;
}
//插入記錄的SQL語句
string InsertSql_1 = "Insert into " + Table.TableName + " (";
string InsertSql_2 = " Values (";
string InsertSql = "";
//遍歷所有列，用于插入記錄，在此創建插入記錄的SQL語句
for (int colID = 0; colID < ColCount; colID++)
{
if (colID + 1 == ColCount) //最后一列
{
InsertSql_1 += Table.Columns[colID].ColumnName + ")";
InsertSql_2 += "@" + Table.Columns[colID].ColumnName + ")";
}
else
{
InsertSql_1 += Table.Columns[colID].ColumnName + ",";
InsertSql_2 += "@" + Table.Columns[colID].ColumnName + ",";
}
}
InsertSql = InsertSql_1 + InsertSql_2;
//遍歷數據表的所有數據行
for (int rowID = 0; rowID < Table.Rows.Count; rowID++)
{
for (int colID = 0; colID < ColCount; colID++)
{
if (para[colID].DbType == DbType.Double && Table.Rows[rowID][colID].ToString().Trim() == "")
{
para[colID].Value = 0;
}
else
{
para[colID].Value = Table.Rows[rowID][colID].ToString().Trim();
}
}
try
{
objCmd.CommandText = InsertSql;
objCmd.ExecuteNonQuery();
}
catch (Exception exp)
{
string str = exp.Message;
}
}
try
{
if (objConn.State == ConnectionState.Open)
{
objConn.Close();
}
}
catch (Exception exp)
{
throw exp;
}
return true;
}
/// <summary>
/// 將數據導出至Excel文件
/// </summary>
/// <param name="Table">DataTable對象</param>
/// <param name="Columns">要導出的數據列集合</param>
/// <param name="ExcelFilePath">Excel文件路徑</param>
public static bool OutputToExcel(DataTable Table, ArrayList Columns, string ExcelFilePath)
{
if (File.Exists(ExcelFilePath))
{
throw new Exception("該文件已經存在！");
}
//如果數據列數大于表的列數，取數據表的所有列
if (Columns.Count > Table.Columns.Count)
{
for (int s = Table.Columns.Count + 1; s <= Columns.Count; s++)
{
Columns.RemoveAt(s); //移除數據表列數后的所有列
}
}
//遍歷所有的數據列，如果有數據列的數據類型不是 DataColumn，則將它移除
DataColumn column = new DataColumn();
for (int j = 0; j < Columns.Count; j++)
{
try
{
column = (DataColumn)Columns[j];
}
catch (Exception)
{
Columns.RemoveAt(j);
}
}
if ((Table.TableName.Trim().Length == 0) || (Table.TableName.ToLower() == "table"))
{
Table.TableName = "Sheet1";
}
//數據表的列數
int ColCount = Columns.Count;
//創建參數
OleDbParameter[] para = new OleDbParameter[ColCount];
//創建表結構的SQL語句
string TableStructStr = @"Create Table " + Table.TableName + "(";
//連接字符串
string connString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + ExcelFilePath + ";Extended Properties=Excel 8.0;";
OleDbConnection objConn = new OleDbConnection(connString);
//創建表結構
OleDbCommand objCmd = new OleDbCommand();
//數據類型集合
ArrayList DataTypeList = new ArrayList();
DataTypeList.Add("System.Decimal");
DataTypeList.Add("System.Double");
DataTypeList.Add("System.Int16");
DataTypeList.Add("System.Int32");
DataTypeList.Add("System.Int64");
DataTypeList.Add("System.Single");
DataColumn col = new DataColumn();
//遍歷數據表的所有列，用于創建表結構
for (int k = 0; k < ColCount; k++)
{
col = (DataColumn)Columns[k];
//列的數據類型是數字型
if (DataTypeList.IndexOf(col.DataType.ToString().Trim()) >= 0)
{
para[k] = new OleDbParameter("@" + col.Caption.Trim(), OleDbType.Double);
objCmd.Parameters.Add(para[k]);
//如果是最后一列
if (k + 1 == ColCount)
{
TableStructStr += col.Caption.Trim() + " Double)";
}
else
{
TableStructStr += col.Caption.Trim() + " Double,";
}
}
else
{
para[k] = new OleDbParameter("@" + col.Caption.Trim(), OleDbType.VarChar);
objCmd.Parameters.Add(para[k]);
//如果是最后一列
if (k + 1 == ColCount)
{
TableStructStr += col.Caption.Trim() + " VarChar)";
}
else
{
TableStructStr += col.Caption.Trim() + " VarChar,";
}
}
}
//創建Excel文件及文件結構
try
{
objCmd.Connection = objConn;
objCmd.CommandText = TableStructStr;
if (objConn.State == ConnectionState.Closed)
{
objConn.Open();
}
objCmd.ExecuteNonQuery();
}
catch (Exception exp)
{
throw exp;
}
//插入記錄的SQL語句
string InsertSql_1 = "Insert into " + Table.TableName + " (";
string InsertSql_2 = " Values (";
string InsertSql = "";
//遍歷所有列，用于插入記錄，在此創建插入記錄的SQL語句
for (int colID = 0; colID < ColCount; colID++)
{
if (colID + 1 == ColCount) //最后一列
{
InsertSql_1 += Columns[colID].ToString().Trim() + ")";
InsertSql_2 += "@" + Columns[colID].ToString().Trim() + ")";
}
else
{
InsertSql_1 += Columns[colID].ToString().Trim() + ",";
InsertSql_2 += "@" + Columns[colID].ToString().Trim() + ",";
}
}
InsertSql = InsertSql_1 + InsertSql_2;
//遍歷數據表的所有數據行
DataColumn DataCol = new DataColumn();
for (int rowID = 0; rowID < Table.Rows.Count; rowID++)
{
for (int colID = 0; colID < ColCount; colID++)
{
//因為列不連續，所以在取得單元格時不能用行列編號，列需得用列的名稱
DataCol = (DataColumn)Columns[colID];
if (para[colID].DbType == DbType.Double && Table.Rows[rowID][DataCol.Caption].ToString().Trim() == "")
{
para[colID].Value = 0;
}
else
{
para[colID].Value = Table.Rows[rowID][DataCol.Caption].ToString().Trim();
}
}
try
{
objCmd.CommandText = InsertSql;
objCmd.ExecuteNonQuery();
}
catch (Exception exp)
{
string str = exp.Message;
}
}
try
{
if (objConn.State == ConnectionState.Open)
{
objConn.Close();
}
}
catch (Exception exp)
{
throw exp;
}
return true;
}
//#region 創建Excel并寫入數據
///// <summary>
///// 導出Excel
///// </summary>
///// <param name="dt">數據源—DataTable</param>
///// <param name="title">表格標題</param>
///// <param name="fileSaveName">電子表格文件開頭名（可空）</param>
///// <returns></returns>
//public static string ExcelExport(DataTable dt, string fileSaveName)
//{
// string docurl = "";
// Workbook wb = new Workbook();
// wb.Worksheets.Clear();
// wb.Worksheets.Add(fileSaveName);
// Worksheet ws = wb.Worksheets[0];
// Cells cells = ws.Cells;
// int rowIndex = 0; //記錄行數游標
// int countCol = dt.Columns.Count; //獲取返回數據表列數
// #region 樣式設置
// //表頭行樣式
// Aspose.Cells.Style titleStyle = wb.Styles[wb.Styles.Add()];
// titleStyle.HorizontalAlignment = TextAlignmentType.Center;
// titleStyle.Font.Size = 15;
// titleStyle.Font.Name = "新宋體";
// titleStyle.Font.IsBold = true;
// titleStyle.ForegroundColor = System.Drawing.Color.FromArgb(216, 243, 205);
// titleStyle.Pattern = BackgroundType.Solid;
// //titleStyle.IsTextWrapped = true;
// titleStyle.Borders[BorderType.RightBorder].LineStyle = CellBorderType.Thin;
// titleStyle.Borders[BorderType.RightBorder].Color = System.Drawing.Color.Black;
// titleStyle.Borders[BorderType.BottomBorder].LineStyle = CellBorderType.Thin;
// titleStyle.Borders[BorderType.BottomBorder].Color = System.Drawing.Color.Black;
// //表內容頭樣式
// Aspose.Cells.Style text_TitleStyle = wb.Styles[wb.Styles.Add()];
// text_TitleStyle.HorizontalAlignment = TextAlignmentType.Left;
// text_TitleStyle.Font.Size = 10;
// text_TitleStyle.Font.Name = "新宋體";
// text_TitleStyle.Font.IsBold = true;
// text_TitleStyle.ForegroundColor = System.Drawing.Color.White;
// text_TitleStyle.Pattern = BackgroundType.Solid;
// //text_TitleStyle.IsTextWrapped = true;
// text_TitleStyle.Borders[BorderType.LeftBorder].LineStyle = CellBorderType.Thin;
// text_TitleStyle.Borders[BorderType.LeftBorder].Color = System.Drawing.Color.Black;
// text_TitleStyle.Borders[BorderType.RightBorder].LineStyle = CellBorderType.Thin;
// text_TitleStyle.Borders[BorderType.RightBorder].Color = System.Drawing.Color.Black;
// text_TitleStyle.Borders[BorderType.TopBorder].LineStyle = CellBorderType.Thin;
// text_TitleStyle.Borders[BorderType.TopBorder].Color = System.Drawing.Color.Black;
// text_TitleStyle.Borders[BorderType.BottomBorder].LineStyle = CellBorderType.Thin;
// text_TitleStyle.Borders[BorderType.BottomBorder].Color = System.Drawing.Color.Black;
// //表內容樣式
// Aspose.Cells.Style textStyle = wb.Styles[wb.Styles.Add()];
// textStyle.HorizontalAlignment = TextAlignmentType.Left;
// textStyle.Font.Size = 10;
// textStyle.Font.Name = "新宋體";
// textStyle.Font.IsBold = false;
// textStyle.ForegroundColor = System.Drawing.Color.White;
// textStyle.Pattern = BackgroundType.Solid;
// //textStyle.IsTextWrapped = true;
// textStyle.Borders[BorderType.LeftBorder].LineStyle = CellBorderType.Thin;
// textStyle.Borders[BorderType.LeftBorder].Color = System.Drawing.Color.Black;
// textStyle.Borders[BorderType.RightBorder].LineStyle = CellBorderType.Thin;
// textStyle.Borders[BorderType.RightBorder].Color = System.Drawing.Color.Black;
// textStyle.Borders[BorderType.TopBorder].LineStyle = CellBorderType.Thin;
// textStyle.Borders[BorderType.TopBorder].Color = System.Drawing.Color.Black;
// textStyle.Borders[BorderType.BottomBorder].LineStyle = CellBorderType.Thin;
// textStyle.Borders[BorderType.BottomBorder].Color = System.Drawing.Color.Black;
// //時間居中內容樣式
// Aspose.Cells.Style timeStyle = wb.Styles[wb.Styles.Add()];
// timeStyle.HorizontalAlignment = TextAlignmentType.Left;
// timeStyle.Font.Size = 10;
// timeStyle.Font.Name = "新宋體";
// timeStyle.Font.IsBold = false;
// timeStyle.ForegroundColor = System.Drawing.Color.White;
// timeStyle.Pattern = BackgroundType.Solid;
// //timeStyle.IsTextWrapped = true;
// timeStyle.Borders[BorderType.LeftBorder].LineStyle = CellBorderType.Thin;
// timeStyle.Borders[BorderType.LeftBorder].Color = System.Drawing.Color.Black;
// timeStyle.Borders[BorderType.RightBorder].LineStyle = CellBorderType.Thin;
// timeStyle.Borders[BorderType.RightBorder].Color = System.Drawing.Color.Black;
// timeStyle.Borders[BorderType.TopBorder].LineStyle = CellBorderType.Thin;
// timeStyle.Borders[BorderType.TopBorder].Color = System.Drawing.Color.Black;
// timeStyle.Borders[BorderType.BottomBorder].LineStyle = CellBorderType.Thin;
// timeStyle.Borders[BorderType.BottomBorder].Color = System.Drawing.Color.Black;
// #endregion
// #region 電子表格表頭
// ws.Cells[rowIndex, 0].PutValue("");
// ws.Cells[rowIndex, 0].SetStyle(titleStyle, true);
// for (int x = 1; x < countCol; x++)
// {
// ws.Cells[rowIndex, x].SetStyle(titleStyle, true);
// }
// cells.SetRowHeight(rowIndex, 26);
// cells.Merge(rowIndex, 0, 1, countCol);
// rowIndex++;
// #endregion
// #region 電子表格列屬性信息
// for (int j = 0; j < countCol; j++)
// {
// string strName = dt.Columns[j].ColumnName;
// switch (strName)
// {
// case "LicenseFlag":
// strName = "是否上牌";
// break;
// case "NonLocalFlag":
// strName = "是否外地車";
// break;
// case "LicenseNo":
// strName = "車牌號";
// break;
// case "Vin":
// strName = "車型碼(車架號)";
// break;
// case "EngineNo":
// strName = "發動機號";
// break;
// case "ModelCode":
// strName = "車輛品牌型號";
// break;
// case "EnrollDate":
// strName = "車輛初次登記日期";
// break;
// case "LoanFlag":
// strName = "是否貸款車";
// break;
// case "LoanBank":
// strName = "貸款銀行";
// break;
// case "LoanContributing":
// strName = "貸款特約";
// break;
// case "TransferFlag":
// strName = "是否過戶車";
// break;
// case "TransferFlagTime":
// strName = "過戶時間";
// break;
// case "EnergyType":
// strName = "能源類型";
// break;
// case "LicenseTypeCode":
// strName = "車牌類型編碼";
// break;
// case "CarTypeCode":
// strName = "行駛證車輛類型編碼";
// break;
// case "VehicleType":
// strName = "車輛種類";
// break;
// case "VehicleTypeCode":
// strName = "車輛種類類型";
// break;
// case "VehicleTypeDetailCode":
// strName = "車輛種類類型詳細";
// break;
// case "UseNature":
// strName = "車輛使用性質";
// break;
// case "UseNatureCode":
// strName = "使用性質細分";
// break;
// case "CountryNature":
// strName = "生成模式/產地";
// break;
// case "IsRenewal":
// strName = "是否續保";
// break;
// case "InsVehicleId":
// strName = "車型編碼";
// break;
// case "Price":
// strName = "新車購置價格(含稅)";
// break;
// case "PriceNoTax":
// strName = "新車購置價格（不含稅）";
// break;
// case "Year":
// strName = "年款";
// break;
// case "Name":
// strName = "車型名稱";
// break;
// case "Exhaust":
// strName = "排量";
// break;
// case "BrandName":
// strName = "品牌名稱";
// break;
// case "LoadWeight":
// strName = "核定載質量/拉貨的質量";
// break;
// case "KerbWeight":
// strName = "汽車整備質量/汽車自重";
// break;
// case "Seat":
// strName = "座位數";
// break;
// case "TaxType":
// strName = "車船稅交稅類型";
// break;
// case "VehicleIMG":
// strName = "車型圖片";
// break;
// case "CustomerType":
// strName = "客戶類型";
// break;
// case "IdType":
// strName = "證件類型";
// break;
// case "OwnerName":
// strName = "車主姓名";
// break;
// case "IdNo":
// strName = "證件號碼";
// break;
// case "Address":
// strName = "地址";
// break;
// case "Mobile":
// strName = "聯系電話";
// break;
// case "Email":
// strName = "聯系郵箱";
// break;
// case "Sex":
// strName = "性別";
// break;
// case "Birthday":
// strName = "出生日期";
// break;
// case "Age":
// strName = "年齡";
// break;
// case "GeneralNumber":
// strName = "總機號碼";
// break;
// case "LinkmanName":
// strName = "聯系人姓名";
// break;
// case "CommercePolicyNo":
// strName = "上年度商業險保單號";
// break;
// case "CompulsoryPolicyNo":
// strName = "上年度交強險保單號";
// break;
// case "InsureCompanyCode":
// strName = "上年度承保公司編碼";
// break;
// case "InsureCompanyName":
// strName = "上年度承保公司";
// break;
// case "CommercePolicyBeginDate":
// strName = "商業險開始時間";
// break;
// case "CommercePolicyEndDate":
// strName = "商業險結束時間";
// break;
// case "CompulsoryPolicyBeginDate":
// strName = "交強險開始時間";
// break;
// case "CompulsoryPolicyEndDate":
// strName = "交強險截至時間";
// break;
// case "CommerceTotalPremium":
// strName = "商業險總保費";
// break;
// case "CompulsoryTotalPremium":
// strName = "交強險總保費";
// break;
// case "TravelTax":
// strName = "車船稅";
// break;
// case "SYInsuranceItem":
// strName = "商業險";
// break;
// case "JQInsurance":
// strName = "交強險";
// break;
// case "TravelInsurance":
// strName = "車船稅";
// break;
// case "ToInsured":
// strName = "投保人信息";
// break;
// case "BeInsured":
// strName = "被保人信息";
// break;
// }
// ws.Cells[rowIndex, j].PutValue(strName);
// ws.Cells[rowIndex, j].SetStyle(text_TitleStyle, true);
// }
// cells.SetRowHeight(rowIndex, 24);
// rowIndex++;
// #endregion
// #region 處理導出數據
// for (int k = 0; k < dt.Rows.Count; k++)
// {
// for (int y = 0; y < countCol; y++)
// {
// if (dt.Columns[y].DataType == typeof(DateTime))
// {
// if (!String.IsNullOrEmpty(dt.Rows[k][y].ToString()))
// { ws.Cells[rowIndex, y].PutValue(DateTime.Parse(dt.Rows[k][y].ToString()).ToString("yyyy-MM-dd")); }
// else
// { ws.Cells[rowIndex, y].PutValue(" "); }
// }
// else
// {
// string str = dt.Rows[k][y].ToString();
// ws.Cells[rowIndex, y].PutValue(str);
// }
// try
// {
// ws.Cells[rowIndex, y].SetStyle(textStyle, true);
// }
// catch
// {
// }
// }
// cells.SetRowHeight(rowIndex, 24);
// rowIndex++;
// }
// #endregion
// #region 屬性設置
// //屬性設置
// ws.UnFreezePanes();
// ws.FreezePanes(2, 1, 2, 0);
// ws.AutoFitColumns();
// ws.AutoFilter.SetRange(1, 0, countCol - 1);
// #endregion
// #region 存儲文件名
// //存儲文件名
// fileSaveName += ".xls";
// //存儲文件地址
// docurl = "C:\\" + fileSaveName;// HttpContext.Current.Server.MapPath().ToString();
// wb.Save(docurl);
// #endregion
// return docurl;
//}
//#endregion
#endregion
/// <summary>獲取Excel文件數據表列表
/// </summary>
public static ArrayList GetExcelTables(string ExcelFileName)
{
string connStr = "";
string fileType = System.IO.Path.GetExtension(ExcelFileName);
if (string.IsNullOrEmpty(fileType)) return null;
if (fileType == ".xls")
connStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + ExcelFileName + ";Extended Properties=\"Excel 8.0;HDR=YES;IMEX=1\"";
else
connStr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + ExcelFileName + ";Extended Properties=\"Excel 12.0;HDR=YES;IMEX=1\"";
DataTable dt = new DataTable();
ArrayList TablesList = new ArrayList();
if (File.Exists(ExcelFileName))
{
using (OleDbConnection conn = new OleDbConnection(connStr))
{
try
{
conn.Open();
dt = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" });
}
catch (Exception exp)
{
throw exp;
}
//獲取數據表個數
int tablecount = dt.Rows.Count;
for (int i = 0; i < tablecount; i++)
{
string tablename = dt.Rows[i][2].ToString().Trim().TrimEnd('$');
if (TablesList.IndexOf(tablename) < 0)
{
TablesList.Add(tablename);
}
}
}
}
return TablesList;
}
/// <summary>將Excel文件導出至DataTable(第一行作為表頭,默認為第一個數據表名)
/// </summary>
/// <param name="ExcelFilePath">Excel文件路徑</param>
public static DataTable InputFromExcel(string ExcelFilePath)
{
if (!File.Exists(ExcelFilePath))
{
throw new Exception("Excel文件不存在！");
}
string fileType = System.IO.Path.GetExtension(ExcelFilePath);
if (string.IsNullOrEmpty(fileType)) return null;
string connStr = string.Empty;
string TableName = string.Empty;
if (fileType == ".xls")
{
connStr = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + ExcelFilePath + ";Extended Properties=\"Excel 8.0;HDR=YES;IMEX=1\"";
}
else
{
connStr = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + ExcelFilePath + ";Extended Properties=\"Excel 12.0;HDR=YES;IMEX=1\"";
}
//如果數據表名不存在，則數據表名為Excel文件的第一個數據表
ArrayList TableList = new ArrayList();
TableList = GetExcelTables(ExcelFilePath);
TableName = TableList[0].ToString().Trim();
DataTable table = new DataTable();
OleDbConnection dbcon = new OleDbConnection(connStr);
if (!TableName.Contains("$"))
{
TableName = TableName + "$";
}
OleDbCommand cmd = new OleDbCommand("select * from [" + TableName + "]", dbcon);
OleDbDataAdapter adapter = new OleDbDataAdapter(cmd);
try
{
if (dbcon.State == ConnectionState.Closed)
{
dbcon.Open();
}
adapter.Fill(table);
}
catch (Exception exp)
{
throw exp;
}
finally
{
if (dbcon.State == ConnectionState.Open)
{
dbcon.Close();
}
}
return table;
}
/// <summary>將Excel文件導出至DataTable(指定表頭)
/// </summary>
/// <param name="ExcelFilePath"></param>
/// <param name="TableName"></param>
/// <param name="Column"></param>
/// <returns></returns>
public static DataTable InputFromExcel(string ExcelFilePath, string TableName, string Column)
{
string connStr = "";
if (!File.Exists(ExcelFilePath))
{
throw new Exception("Excel文件不存在！");
}
string fileType = System.IO.Path.GetExtension(ExcelFilePath);
if (string.IsNullOrEmpty(fileType)) return null;
if (fileType == ".xls")
{
connStr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + ExcelFilePath + ";Extended Properties=\"Excel 8.0;HDR=YES;IMEX=1\"";
}
else
{
connStr = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + ExcelFilePath + ";Extended Properties=\"Excel 12.0;HDR=YES;IMEX=1\"";
}
if (string.IsNullOrEmpty(Column))
{
Column = "*";
}
//如果數據表名不存在，則數據表名為Excel文件的第一個數據表
ArrayList TableList = new ArrayList();
TableList = GetExcelTables(ExcelFilePath);
if (TableList.IndexOf(TableName) < 0)
{
TableName = TableList[0].ToString().Trim();
}
DataTable table = new DataTable();
OleDbConnection dbcon = new OleDbConnection(connStr);
OleDbCommand cmd = new OleDbCommand(string.Format("select {0} from [{1}$]", Column, TableName), dbcon);
OleDbDataAdapter adapter = new OleDbDataAdapter(cmd);
try
{
if (dbcon.State == ConnectionState.Closed)
{
dbcon.Open();
}
adapter.Fill(table);
}
catch (Exception exp)
{
throw exp;
}
finally
{
if (dbcon.State == ConnectionState.Open)
{
dbcon.Close();
}
}
return table;
}
/// <summary>獲取Excel文件指定數據表的數據列表
/// </summary>
/// <param name="ExcelFileName">Excel文件名</param>
/// <param name="TableName">數據表名</param>
public static ArrayList GetExcelTableColumns(string ExcelFileName, string TableName)
{
DataTable dt = new DataTable();
ArrayList ColsList = new ArrayList();
if (File.Exists(ExcelFileName))
{
using (OleDbConnection conn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=Excel 8.0;Data Source=" + ExcelFileName))
{
conn.Open();
dt = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Columns, new object[] { null, null, TableName, null });
//獲取列個數
int colcount = dt.Rows.Count;
for (int i = 0; i < colcount; i++)
{
string colname = dt.Rows[i]["Column_Name"].ToString().Trim();
ColsList.Add(colname);
}
}
}
return ColsList;
}
}
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