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asp.net裏導出excel表方法彙總

來源:互聯網  2008-10-25 09:18:29  評論

1、由dataset生成

public void CreateExcel(DataSet ds,string typeid,string FileName)

{

HttpResponse resp;

resp = Page.Response;

resp.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");

resp.AppendHeader("Content-Disposition", "attachment;filename=" + FileName);

string colHeaders= "", ls_item="";

int i=0;

//定義表對象與行對像,同時用DataSet對其值進行初始化

DataTable dt=ds.Tables[0];

DataRow[] myRow=dt.Select("");

// typeid=="1"時導出爲EXCEL格式文件;typeid=="2"時導出爲XML格式文件

if(typeid=="1")

{

//取得數據表各列標題,各標題之間以"t分割,最後一個列標題後加回車符

for(i=0;i colHeaders+=dt.Columns[i].Caption.ToString()+""t";

colHeaders +=dt.Columns[i].Caption.ToString() +""n";

//向HTTP輸出流中寫入取得的數據信息

resp.Write(colHeaders);

//逐行處理數據

foreach(DataRow row in myRow)

{

//在當前行中,逐列獲得數據,數據之間以"t分割,結束時加回車符"n

for(i=0;i ls_item +=row[i].ToString() + ""t";

ls_item += row[i].ToString() +""n";

//當前行數據寫入HTTP輸出流,並且置空ls_item以便下行數據

resp.Write(ls_item);

ls_item="";

}

}

else

{

if(typeid=="2")

{

//從DataSet中直接導出XML數據並且寫到HTTP輸出流中

resp.Write(ds.GetXml());

}

}

//寫緩沖區中的數據到HTTP頭文件中

resp.End();

}

2、由datagrid生成

public void ToExcel(System.Web.UI.Control ctl)

{

HttpContext.Current.Response.AppendHeader("Content-Disposition","attachment;filename=Excel.xls");

HttpContext.Current.Response.Charset ="UTF-8";

HttpContext.Current.Response.ContentEncoding =System.Text.Encoding.Default;

HttpContext.Current.Response.ContentType ="application/ms-excel";//image/JPEG;text/HTML;image/GIF;vnd.ms-excel/msword

ctl.Page.EnableViewState =false;

System.IO.StringWriter tw = new System.IO.StringWriter() ;

System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter (tw);

ctl.RenderControl(hw);

HttpContext.Current.Response.Write(tw.ToString());

HttpContext.Current.Response.End();

}

用法:ToExcel(datagrid1);

3、這個用dataview

public void OutputExcel(DataView dv,string str)

{

//

// TODO: 在此處添加構造函數邏輯

//

//dv爲要輸出到Excel的數據,str爲標題名稱

GC.Collect();

Application excel;// = new Application();

int rowIndex=4;

int colIndex=1;

_Workbook xBk;

_Worksheet xSt;

excel= new ApplicationClass();

xBk = excel.Workbooks.Add(true);

xSt = (_Worksheet)xBk.ActiveSheet;

//

//取得標題

//

foreach(DataColumn col in dv.Table.Columns)

{

colIndex++;

excel.Cells[4,colIndex] = col.ColumnName;

xSt.get_Range(excel.Cells[4,colIndex],excel.Cells[4,colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//設置標題格式爲居中對齊

}

//

//取得表格中的數據

//

foreach(DataRowView row in dv)

{

rowIndex ++;

colIndex = 1;

foreach(DataColumn col in dv.Table.Columns)

{

colIndex ++;

if(col.DataType == System.Type.GetType("System.DateTime"))

{

excel.Cells[rowIndex,colIndex] = (Convert.ToDateTime(row[col.ColumnName].ToString())).ToString("yyyy-MM-dd");

xSt.get_Range(excel.Cells[rowIndex,colIndex],excel.Cells[rowIndex,colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//設置日期型的字段格式爲居中對齊

}

else

if(col.DataType == System.Type.GetType("System.String"))

{

excel.Cells[rowIndex,colIndex] = "'"+row[col.ColumnName].ToString();

xSt.get_Range(excel.Cells[rowIndex,colIndex],excel.Cells[rowIndex,colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//設置字符型的字段格式爲居中對齊

}

else

{

excel.Cells[rowIndex,colIndex] = row[col.ColumnName].ToString();

}

}

}

//

//加載一個合計行

//

int rowSum = rowIndex + 1;

int colSum = 2;

excel.Cells[rowSum,2] = "合計";

xSt.get_Range(excel.Cells[rowSum,2],excel.Cells[rowSum,2]).HorizontalAlignment = XlHAlign.xlHAlignCenter;

//

//設置選中的部分的顔色

//

xSt.get_Range(excel.Cells[rowSum,colSum],excel.Cells[rowSum,colIndex]).Select();

xSt.get_Range(excel.Cells[rowSum,colSum],excel.Cells[rowSum,colIndex]).Interior.ColorIndex = 19;//設置爲淺黃色,共計有56種

//

//取得整個報表的標題

//

excel.Cells[2,2] = str;

//

//設置整個報表的標題格式

//

xSt.get_Range(excel.Cells[2,2],excel.Cells[2,2]).Font.Bold = true;

xSt.get_Range(excel.Cells[2,2],excel.Cells[2,2]).Font.Size = 22;

//

//設置報表表格爲最適應寬度

//

xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,colIndex]).Select();

xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,colIndex]).Columns.AutoFit();

//

//設置整個報表的標題爲跨列居中

//

xSt.get_Range(excel.Cells[2,2],excel.Cells[2,colIndex]).Select();

xSt.get_Range(excel.Cells[2,2],excel.Cells[2,colIndex]).HorizontalAlignment = XlHAlign.xlHAlignCenterAcrossSelection;

//

//繪制邊框

//

xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,colIndex]).Borders.LineStyle = 1;

xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,2]).Borders[XlBordersIndex.xlEdgeLeft].Weight = XlBorderWeight.xlThick;//設置左邊線加粗

xSt.get_Range(excel.Cells[4,2],excel.Cells[4,colIndex]).Borders[XlBordersIndex.xlEdgeTop].Weight = XlBorderWeight.xlThick;//設置上邊線加粗

xSt.get_Range(excel.Cells[4,colIndex],excel.Cells[rowSum,colIndex]).Borders[XlBordersIndex.xlEdgeRight].Weight = XlBorderWeight.xlThick;//設置右邊線加粗

xSt.get_Range(excel.Cells[rowSum,2],excel.Cells[rowSum,colIndex]).Borders[XlBordersIndex.xlEdgeBottom].Weight = XlBorderWeight.xlThick;//設置下邊線加粗

//

//顯示效果

//

excel.Visible=true;

//xSt.Export(Server.MapPath(".")+""""+this.xlfile.Text+".xls",SheetExportActionEnum.ssExportActionNone,Microsoft.Office.Interop.OWC.SheetExportFormat.ssExportHTML);

xBk.SaveCopyAs(Server.MapPath(".")+""""+this.xlfile.Text+".xls");

ds = null;

xBk.Close(false, null,null);

excel.Quit();

System.Runtime.InteropServices.Marshal.ReleaseComObject(xBk);

System.Runtime.InteropServices.Marshal.ReleaseComObject(excel);

System.Runtime.InteropServices.Marshal.ReleaseComObject(xSt);

xBk = null;

excel = null;

xSt = null;

GC.Collect();

string path = Server.MapPath(this.xlfile.Text+".xls");

System.IO.FileInfo file = new System.IO.FileInfo(path);

Response.Clear();

Response.Charset="GB2312";

Response.ContentEncoding=System.Text.Encoding.UTF8;

// 添加頭信息,爲"文件下載/另存爲"對話框指定默認文件名

Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(file.Name));

// 添加頭信息,指定文件大小,讓浏覽器能夠顯示下載進度

Response.AddHeader("Content-Length", file.Length.ToString());

// 指定返回的是一個不能被客戶端讀取的流,必須被下載

Response.ContentType = "application/ms-excel";

// 把文件流發送到客戶端

Response.WriteFile(file.FullName);

// 停止頁面的執行

Response.End();

}

1、由dataset生成 public void CreateExcel(DataSet ds,string typeid,string FileName) { HttpResponse resp; resp = Page.Response; resp.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312"); resp.AppendHeader("Content-Disposition", "attachment;filename=" + FileName); string colHeaders= "", ls_item=""; int i=0; //定義表對象與行對像,同時用DataSet對其值進行初始化 DataTable dt=ds.Tables[0]; DataRow[] myRow=dt.Select(""); // typeid=="1"時導出爲EXCEL格式文件;typeid=="2"時導出爲XML格式文件 if(typeid=="1") { //取得數據表各列標題,各標題之間以"t分割,最後一個列標題後加回車符 for(i=0;i colHeaders+=dt.Columns[i].Caption.ToString()+""t"; colHeaders +=dt.Columns[i].Caption.ToString() +""n"; //向HTTP輸出流中寫入取得的數據信息 resp.Write(colHeaders); //逐行處理數據 foreach(DataRow row in myRow) { //在當前行中,逐列獲得數據,數據之間以"t分割,結束時加回車符"n for(i=0;i ls_item +=row[i].ToString() + ""t"; ls_item += row[i].ToString() +""n"; //當前行數據寫入HTTP輸出流,並且置空ls_item以便下行數據 resp.Write(ls_item); ls_item=""; } } else { if(typeid=="2") { //從DataSet中直接導出XML數據並且寫到HTTP輸出流中 resp.Write(ds.GetXml()); } } //寫緩沖區中的數據到HTTP頭文件中 resp.End(); } 2、由datagrid生成 public void ToExcel(System.Web.UI.Control ctl) { HttpContext.Current.Response.AppendHeader("Content-Disposition","attachment;filename=Excel.xls"); HttpContext.Current.Response.Charset ="UTF-8"; HttpContext.Current.Response.ContentEncoding =System.Text.Encoding.Default; HttpContext.Current.Response.ContentType ="application/ms-excel";//image/JPEG;text/HTML;image/GIF;vnd.ms-excel/msword ctl.Page.EnableViewState =false; System.IO.StringWriter tw = new System.IO.StringWriter() ; System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter (tw); ctl.RenderControl(hw); HttpContext.Current.Response.Write(tw.ToString()); HttpContext.Current.Response.End(); } 用法:ToExcel(datagrid1); 3、這個用dataview public void OutputExcel(DataView dv,string str) { // // TODO: 在此處添加構造函數邏輯 // //dv爲要輸出到Excel的數據,str爲標題名稱 GC.Collect(); Application excel;// = new Application(); int rowIndex=4; int colIndex=1; _Workbook xBk; _Worksheet xSt; excel= new ApplicationClass(); xBk = excel.Workbooks.Add(true); xSt = (_Worksheet)xBk.ActiveSheet; // //取得標題 // foreach(DataColumn col in dv.Table.Columns) { colIndex++; excel.Cells[4,colIndex] = col.ColumnName; xSt.get_Range(excel.Cells[4,colIndex],excel.Cells[4,colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//設置標題格式爲居中對齊 } // //取得表格中的數據 // foreach(DataRowView row in dv) { rowIndex ++; colIndex = 1; foreach(DataColumn col in dv.Table.Columns) { colIndex ++; if(col.DataType == System.Type.GetType("System.DateTime")) { excel.Cells[rowIndex,colIndex] = (Convert.ToDateTime(row[col.ColumnName].ToString())).ToString("yyyy-MM-dd"); xSt.get_Range(excel.Cells[rowIndex,colIndex],excel.Cells[rowIndex,colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//設置日期型的字段格式爲居中對齊 } else if(col.DataType == System.Type.GetType("System.String")) { excel.Cells[rowIndex,colIndex] = "'"+row[col.ColumnName].ToString(); xSt.get_Range(excel.Cells[rowIndex,colIndex],excel.Cells[rowIndex,colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//設置字符型的字段格式爲居中對齊 } else { excel.Cells[rowIndex,colIndex] = row[col.ColumnName].ToString(); } } } // //加載一個合計行 // int rowSum = rowIndex + 1; int colSum = 2; excel.Cells[rowSum,2] = "合計"; xSt.get_Range(excel.Cells[rowSum,2],excel.Cells[rowSum,2]).HorizontalAlignment = XlHAlign.xlHAlignCenter; // //設置選中的部分的顔色 // xSt.get_Range(excel.Cells[rowSum,colSum],excel.Cells[rowSum,colIndex]).Select(); xSt.get_Range(excel.Cells[rowSum,colSum],excel.Cells[rowSum,colIndex]).Interior.ColorIndex = 19;//設置爲淺黃色,共計有56種 // //取得整個報表的標題 // excel.Cells[2,2] = str; // //設置整個報表的標題格式 // xSt.get_Range(excel.Cells[2,2],excel.Cells[2,2]).Font.Bold = true; xSt.get_Range(excel.Cells[2,2],excel.Cells[2,2]).Font.Size = 22; // //設置報表表格爲最適應寬度 // xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,colIndex]).Select(); xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,colIndex]).Columns.AutoFit(); // //設置整個報表的標題爲跨列居中 // xSt.get_Range(excel.Cells[2,2],excel.Cells[2,colIndex]).Select(); xSt.get_Range(excel.Cells[2,2],excel.Cells[2,colIndex]).HorizontalAlignment = XlHAlign.xlHAlignCenterAcrossSelection; // //繪制邊框 // xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,colIndex]).Borders.LineStyle = 1; xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,2]).Borders[XlBordersIndex.xlEdgeLeft].Weight = XlBorderWeight.xlThick;//設置左邊線加粗 xSt.get_Range(excel.Cells[4,2],excel.Cells[4,colIndex]).Borders[XlBordersIndex.xlEdgeTop].Weight = XlBorderWeight.xlThick;//設置上邊線加粗 xSt.get_Range(excel.Cells[4,colIndex],excel.Cells[rowSum,colIndex]).Borders[XlBordersIndex.xlEdgeRight].Weight = XlBorderWeight.xlThick;//設置右邊線加粗 xSt.get_Range(excel.Cells[rowSum,2],excel.Cells[rowSum,colIndex]).Borders[XlBordersIndex.xlEdgeBottom].Weight = XlBorderWeight.xlThick;//設置下邊線加粗 // //顯示效果 // excel.Visible=true; //xSt.Export(Server.MapPath(".")+""""+this.xlfile.Text+".xls",SheetExportActionEnum.ssExportActionNone,Microsoft.Office.Interop.OWC.SheetExportFormat.ssExportHTML); xBk.SaveCopyAs(Server.MapPath(".")+""""+this.xlfile.Text+".xls"); ds = null; xBk.Close(false, null,null); excel.Quit(); System.Runtime.InteropServices.Marshal.ReleaseComObject(xBk); System.Runtime.InteropServices.Marshal.ReleaseComObject(excel); System.Runtime.InteropServices.Marshal.ReleaseComObject(xSt); xBk = null; excel = null; xSt = null; GC.Collect(); string path = Server.MapPath(this.xlfile.Text+".xls"); System.IO.FileInfo file = new System.IO.FileInfo(path); Response.Clear(); Response.Charset="GB2312"; Response.ContentEncoding=System.Text.Encoding.UTF8; // 添加頭信息,爲"文件下載/另存爲"對話框指定默認文件名 Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode(file.Name)); // 添加頭信息,指定文件大小,讓浏覽器能夠顯示下載進度 Response.AddHeader("Content-Length", file.Length.ToString()); // 指定返回的是一個不能被客戶端讀取的流,必須被下載 Response.ContentType = "application/ms-excel"; // 把文件流發送到客戶端 Response.WriteFile(file.FullName); // 停止頁面的執行 Response.End(); }
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