Aspose. Cells export excel, aspose. cellsexcel

Aspose. Cells export excel, aspose. cellsexcel

Use Aspose. Cells to export excel

Notes

1. Processing of DataTable

2. encoding to facilitate download of Chinese name files

3. Do not forget Aspose. Cells. dll (you can search for it on the Internet)

Public static bool DataTableToExcel2 (DataTable datatable, string filepath, out string error) {error = ""; Aspose. cells. workbook wb = new Aspose. cells. workbook (); try {if (datatable = null) {error = "DataTableToExcel: datatable is empty"; return false;} // Add a style Aspose for the cell. cells. style style = wb. styles [wb. styles. add ()]; // set the Center style. horizontalAlignment = Aspose. cells. textAlignmentType. center; // set the background color st Yle. foregroundColor = System. drawing. color. fromArgb (153,204, 0); style. pattern = BackgroundType. solid; style. font. isBold = true; int rowIndex = 0; for (int I = 0; I <datatable. columns. count; I ++) {DataColumn col = datatable. columns [I]; string columnName = col. caption ?? Col. columnName; wb. worksheets [0]. cells [rowIndex, I]. putValue (columnName); wb. worksheets [0]. cells [rowIndex, I]. setStyle (style);} rowIndex ++; foreach (DataRow row in datatable. rows) {for (int I = 0; I <datatable. columns. count; I ++) {wb. worksheets [0]. cells [rowIndex, I]. putValue (row [I]. toString ();} rowIndex ++;} for (int k = 0; k <datatable. columns. count; k ++) {wb. worksheets [0]. autoFitColumn (k, 0,150);} wb. worksheets [0]. freezePanes (1, 0, 1, datatable. columns. count); wb. save (filepath); return true;} catch (Exception e) {error = error + "DataTableToExcel:" + e. message; return false ;}} protected void btnExport_Click (object sender, EventArgs e) {// export int ClassID = 0; int. tryParse (hidClassID. value, out ClassID); string error = ""; string filepath = ""; BLL. TUser bll_TUser = new BLL. TUs Er (); BLL. TClass bll_Class = new BLL. TClass (); Model. TClass model = (new BLL. TClass ()). getModel (ClassID); // process DataTable dt able dt = bll_TUser.GetListByClass (ClassID); DataTable dtNew = new DataTable (); dtNew. columns. add ("name", typeof (string); dtNew. columns. add ("student ID", typeof (string); dtNew. columns. add ("gender", typeof (string); dtNew. columns. add ("phone", typeof (string); if (dt! = Null & dt. rows. count> 0) {DataRow drNew = dtNew. newRow (); foreach (DataRow dr in dt. rows) {// drNew = dtNew. newRow (); drNew ["name"] = dr ["UserName"]; drNew ["student ID"] = dr ["IDNO"]; drNew ["gender"] = dr ["Sex"]. toString () = "1 "? "Male": (dr ["Sex"]. ToString () = "2 "? "Female": ""); drNew ["Phone"] = dr ["Phone"]; dtNew. Rows. Add (drNew. ItemArray) ;}} (model! = Null) {filepath = "/UploadFiles/ExportClass/"; // + model. className + ". xlsx "; string filaname = model. className + ". xlsx "; string finalPath = MapPath ("~ "+ Filepath + filaname); // check whether an if (! Directory. Exists (MapPath ("~ /UploadFiles/ExportClass/") {Directory. CreateDirectory (MapPath ("~ /UploadFiles/ExportClass/");} if (DataTableToExcel2 (dtNew, finalPath, out error) {string SiteRoot =" http: // "+ Request. url. authority. toString () + filepath + Uri. escapeDataString (filaname); // It is encoded to facilitate the download of the Chinese name file // download the excel ClientScript. registerStartupScript (this. getType (), "", ", <script type = 'text/javascript '> window. open ('"+ SiteRoot +"'); </script> ");} else {ClientScript. registerStartupScript (thi S. GetType (), "", "<script type = 'text/javascript '> alert ('hprompt', '" + error + "! '); </Script> ") ;}} else {ClientScript. registerStartupScript (this. getType (), "", "<script type = 'text/javascript '> alert ('hprompt', 'class does not exist! '); </Script> ");}}