C # 32-bit machines and 64-bit machines read Excel content to a dataset

Source: Internet
Author: User
Tags field table

        //----------------------32-bit machine//Comment Description//Exclepath for Excel path lot number refers to a column in an Excel file that is required         Public StaticDataSet getdatatableforexcel (String exclepath) {stringStrcon =String.Empty; Strcon="Provider=Microsoft.Jet.OLEDB.4.0;Data source="+ Exclepath +"; Extended properties= ' Excel 8.0;imex=1 ';"; OleDbConnection Olecon=NewOleDbConnection (Strcon); Olecon.            Open (); DataTable DT= Olecon. GetOleDbSchemaTable (OleDbSchemaGuid.Tables,NULL); stringtableName = dt. rows[0][2]. ToString ().            Trim (); OleDbDataAdapter Myda=NewOleDbDataAdapter ("SELECT * FROM ["+ TableName +"] Where lot number is not null", Strcon);//Where conditions are changed according to the actual situationDataSet myds =NewDataSet (); Try{Myda.            Fill (myds); }            Catch{myds =NULL; } Olecon.            Close (); returnmyds; }        //-----------------------------64-bit machine        /// <summary>         ///convert data from Excel to DataTable, apply referenced COM component: Microsoft.Office.Interop.Excel.dll read Excel file/// </summary>         /// <param name= "Filenameurl" >Physical Path</param>         /// <param name= "Sheetindex" >Index of the sheet name</param>         /// <param name= "Splitstr" >if the column already exists, the custom added string</param>         /// <returns></returns>          Public StaticDataTable Execletodataset (stringFilenameurl,intSheetindex,stringsplitstr) {            //Microsoft.Office.Interop.Excel.Workbook WB =NULL; Microsoft.Office.Interop.Excel.Worksheet ws=NULL; BOOLIsEqual =false;//Not EqualArrayList Columnarr =NewArrayList ();//column Field TableDataSet MyDs =NewDataSet (); DataTable xlstable= MYDS.TABLES.ADD ("Show"); ObjectMissing =System.Reflection.Missing.Value; Microsoft.Office.Interop.Excel.Application Excel=NewMicrosoft.Office.Interop.Excel.Application ();//lauch Excel Application            if(Excel! =NULL) {Excel. Visible=false; Excel. UserControl=true; //open an Excel file in read-only formatWB = Excel. Workbooks.Open (Filenameurl, Missing,true, missing, missing, missing, missing, missing, missing,true, missing, missing, missing, missing, missing); //get the first job bookWS =(Microsoft.Office.Interop.Excel.Worksheet) WB.                Worksheets.get_item (Sheetindex); //Total record rows obtained (including header column)                intRowsint = ws. UsedRange.Cells.Rows.Count;//get the number of rows                intColumnsint = ws. UsedRange.Cells.Columns.Count;//get the number of columnsDataRow Dr;  for(inti =1; I <= columnsint; i++)                {                    //determine if columns are the same                    if(I >=2)                    {                        intR =0;  for(intK =1; K <= I-1; k++)//columns are compared from the first column to the i-1 column traversal                        {                            if((Microsoft.Office.Interop.Excel.Range) ws. cells[1, I]). text.tostring () = = ((Microsoft.Office.Interop.Excel.Range) ws. cells[1, K]). Text.tostring ()) {//if the value of the column equals the value of a column in the preceding columnXLSTABLE.COLUMNS.ADD ((Microsoft.Office.Interop.Excel.Range) ws. cells[1, I]). Text.tostring () + Splitstr + (r +1). ToString (),typeof(string)); Columnarr.add ((Microsoft.Office.Interop.Excel.Range) ws. cells[1, I]). Text.tostring () + Splitstr + (r +1).                                ToString ()); IsEqual=true; R++;  Break; }                            Else{isequal=false; Continue; }                        }                        if(!isequal) {XLSTABLE.COLUMNS.ADD ((Microsoft.Office.Interop.Excel.Range) ws. cells[1, I]). Text.tostring (),typeof(string)); Columnarr.add ((Microsoft.Office.Interop.Excel.Range) ws. cells[1, I]).                        Text.tostring ()); }                    }                    Else{xlsTable.Columns.Add ((Microsoft.Office.Interop.Excel.Range) ws. cells[1, I]). Text.tostring (),typeof(string)); Columnarr.add ((Microsoft.Office.Interop.Excel.Range) ws. cells[1, I]).                    Text.tostring ()); }                }                 for(inti =2; I <= rowsint; i++) {Dr=Xlstable.newrow ();  for(intj =1; J <= Columnsint; J + +) {dr[columnarr[j-1]. ToString ()] =((Microsoft.Office.Interop.Excel.Range) ws. Cells[i, J]).                    Text.tostring ();                } xlsTable.Rows.Add (DR); }} Excel.            Quit (); Excel=NULL;            Dispose (WS, WB); returnxlstable; }

C # 32-bit machines and 64-bit machines read Excel content to a dataset

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