dataset for data mining in excel

In developing database applications, you often export the same type of data to Excel files, and use Excel's powerful editing capabilities to further process the data. There are many ways in which we can use OLE technology to create an Automation object in Delphi that transmits data through that object. You can also use

doBeginExcelworksheet. cells. item [2, I]: = dbgrid1.columns. items [I-1]. fieldname;End;While not (dbgrid1.datasource. dataset. EOF) DoBeginColumn: = 1;For I: = 1 to dbgrid1.columns. Count doBeginExcelworksheet. cells. item [row, column]: = dbgrid1.datasource. dataset. Fields [I-1]. asstring;Column: = column + 1;End;Dbgrid1.datasource. dataset. Next;Row: = row

C # reading Excel file dataIt is quite simple. Excel is like a database. Each sheet is a table. Microsoft. Jet. oledb driver.Followed by a datareader loop, or dataset processing is very simple. Http: // blog. csdn. Net/crabo/Note: Data type conversion !! # Region set connectionString strconn = @ "provider = Microsoft.

asp: The "Microsoft.Jet.OLEDB.4.0" provider is not registered on the local computer when you import the Excel data using OLE DB modeIn the project I did a module that imports data from an Excel table, and in general, the import of Excel into an ASP. NET project is broadly di

1. Read the Excel data to the dataset Public StaticSystem.Data.DataSet Excelsqlconnection (stringFilePathstringtableName) { stringStrcon ="Provider=Microsoft.Jet.OLEDB.4.0;Data source="+ filepath +"; Extended properties= ' Excel 8.0; Hdr=yes;imex=1 '"; OleDbConnection

How can I do that? Two File One is update data to database First stepI will define two sesion to write the operating table and operating columns in server.Two StepTell the customer where and how many columns they can update. Column name 1: Real column name 1 # column name 1: Real column name 1 # column name 1: Real column name 1 // Get the data from excleString strconn = "provider = Microsoft. Jet. o

using system; using system. data; using system. configuration; using system. collections; using system. web; using system. web. security; using system. web. ui; using system. web. UI. webcontrols; using system. web. UI. webcontrols. webparts; using system. web. UI. htmlcontrols; using system. data. common; using system. data. sqlclient; using system.

source={0}; Extended properties= ' Excel 12.0; Hdr=yes; Imex=1 ' "; System.Data.DataTable dt = null;//Establish connectionOleDbConnection conn = new OleDbConnection (string. Format (Cmdtext, FILEURL));Try {//Open Connectionif (Conn. State = = Connectionstate.broken | | Conn. state = = connectionstate.closed) {Conn. Open (); } System.Data.DataTable schematable = conn. GetOleDbSchemaTable (OleDbSchemaGuid.Tables, NULL); //Get the first sheet name of

This article realizes that the data in the database is output directly to the Excel file format and output in the browser. Here is an example of implementation:View examples The following are the referenced contents: Excelexport.aspxinherits= "AspxWeb.mengxianhui.com.ExcelExport"%>! DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 transitional//en"Bordercolor= "#CC9966" borderwidth= "1px" borderstyle=

Please download the Org.in2bits.MyXls.dll library yourself1 Public voidGridviewexportexcel (GridView GV)2 {3DataTable dt =NewDataTable ();4 //Add header row5 for(inti =0; I )6 {7 dt. Columns.Add (GV. Columns[i]. HeaderText);8 }9DataRow dr =dt. NewRow ();Ten //Adding data rows One for(inti =0; I ) A { - for(intj =0; J ) - { th