dataset for data mining in excel

);Httpcontext. Current. response. Write (TW. tostring ());Httpcontext. Current. response. End ();} Private void button_excel_click (Object sender, system. Web. UI. imageclickeventargs e) // click an Excel button{Mydatagrid. pagesize = convert. toint32 (viewstate ["count"]. tostring ());Bindgrid ();Mydatagrid. pagerstyle. Visible = false;Toexcel (mydatagrid, table_name ());} The following are called public class public_class.cs Using system.

= ""; Txtprint + = " Txtprint + = " Txtprint + = " Txtprint + = uploadsucceedtxt; Txtprint + = " Txtprint + = " Txtprint + = " // Output a success prompt This. laberrortxt. Text = txtprint; Initdatebind (); } } Void gotoerror () { If (uploaderrortxt! = "") { String txtprint = ""; Txtprint + = " Txtprint + = " Txtprint + = " Txtprint + = uploaderrortxt; Txtprint + = " Txtprint + = " Txtprint + = " // Output error message This. laberrortxt. Text = txtprint; Initdatebind (); } } Public

(sheetlastsize> = constants. excel_sheet_datasize ){Sheet = Workbook. createsheet ();Sheetlastsize = sheet. getlastrownum ();Log.info ("sheetlast size: ========" + sheetlastsize );MapInfo. Put ("sheet", sheet );// Process the title HeaderProcessexceltitle (dataset, workbook, sheet );} Problem 2 is currently not a good solution. Multiple cell objects are generated in each row. When the data volume is large

.xlsand .xlsx, that is, HDR = Yes in versions such as office2010 indicates that the first line is the title, not the data;Const string shorttext = "Provider = Microsoft. Ace. OleDb.12.0; Data Source = {0}; Extended Properties = 'excel 12.0; HDR = Yes; IMEX = 1 '"; System. Data. DataTable dt = null;// Establish a conne

);Application.doevents ();String strSQL = "SELECT * FROM [sheet1$]";OleDbCommand cmd= New OleDbCommand (Strsql,conn);OleDbDataAdapter da = new OleDbDataAdapter (CMD);DataSet ds = new DataSet ();Da. Fill (ds, "Insert Table");Datagridview1.datasource=ds. Tables[0];Datagridview1.allowusertoaddrows = false;Datagridview1.allowusertodeleterows = false;MessageBox.Show (SSS);}catch (Exception ex){MessageBox.Show (e

asp.net|excel| Upload | Data in csdn, people often ask how to open an Excel database file. This article through a simple example, the realization reads the Excel data file. First, create a Web application project, and add a DataGrid control, a file control, and a button cont

datagrid|excel|word| Data Imports System Imports System.Collections Imports System.ComponentModel Imports System.Data Imports System.Drawing Imports system.web Imports System.Web.SessionState Imports System.Web.UI Imports System.Web.UI.WebControls Imports System.Web.UI.HtmlControls Imports System.IO Imports System.Data.SqlClient Imports System.Text Public Class WebForm1 Inherits System.Web.UI.Page #Region

How do I link an Excel table when I import data? It is best to have a suffix when linking.DataSet myDataSet = new DataSet ();Create a data linkString Strcon = "Provider = microsoft.jet.oledb.4.0; Data Source = "+ FileName +"; Extended Properties=

This method only saves the asp.net page as an html page. It only changes the suffix to xlc, but it can be read in excel. Next, let's take a look at other ways to export data and generate it using templates. Below is the code Create an asp. ne tweb application in the county and paste the code. Html page code Next is the code on the cs page. Using System;Using System. Collections;Using System. Compo

on the website below . NET tools: Load SQLite using System.Data.SQLite; using System.Data.SqlClient; Use: Pay attention to the use of try,catch, otherwise it will not show the data and do not hold the wrong. After try catch, you will find that you cannot load SQLite.Interop.dll. You need to place the DLL under the project path, and then set the property to copy to the output value: Always copy: if(file.exists (path)) {Try{Sqliteconnection conn

Label:To upload an Excel data table to the Oracle database, proceed as follows:1. Open the local Excel file2. Connect Excel files with OLE DB3. Future data from Excel read into the dataset4. Insert

[i]["F6"]) +"', '"+convert.tostring (dt. rows[i]["F7"]) +"', '"+ convert.tostring (dt. rows[i]["F8"]) +"', '"+ convert.tostring (dt. rows[i]["F9"]) +"')"; intj =accesshelper.returnsql (SQL); Result= j + +; } if(Result >0) { This. Close (); } } /// ///read the contents of a specified page in Excel/// /// Excel Path ///

datagrid|excel| Data | database I'll explain some of the programs first, and then give the whole source code. DataSet Objdataset = new DataSet ();objconn = new SqlConnection (configurationsettings.appsettings["Connectionsqlserver"). ToString ());objConn.Open ()///configuration file in Web.config.SqlDataAdapter objadapt

----------vb.net export data to Excel------------- Introduce Microsoft Excel 11.0 Object Library in references Dim oExcel As New Excel.Application Dim obook As Excel.Workbook Dim oSheet As Excel.Worksheet Dim DataArray(2000, 2000) As Integer obook = oExcel.Workbooks.Open("c:\1.xls") oSheet = obook.Worksheets(1) oSheet.Name = "ok" Dim myAdapter As New OleDb.OleD

versions of the Hdr=yes represent the first line is the title, not the data;Const string Cmdtext = "Provider=microsoft.ace.oledb.12.0;data source={0};" Extended properties= ' Excel 12.0; Hdr=yes; Imex=1 ' "; System.Data.DataTable dt = null;Establish a connectionOleDbConnection conn = new OleDbConnection (string. Format (Cmdtext, FILEURL));Try{Open connectionIF

Copy codeThe Code is as follows:Using System;Using System. Collections. Generic;Using System. Linq;Using System. Web;Using System. Web. UI;Using System. Web. UI. WebControls;Using System. Data. SqlClient;Using System. Data;Public partial class _ Default: System. Web. UI. Page{Protected void Page_Load (object sender, EventArgs e){String sqlconn = "Server =.; DataBase = db; Integrated Security = SSPI ";String