dataset for data mining in excel

, associate these two data sources in Excel, and finally display them in Excel.Preparations In this example, I plan to use PowerQuery to call Dynamics CRM Odata Endpoint and obtain the expected data. How to construct OData Query is involved here. In this example, I used the following two OData queries: Account Data So

# Region read Excel Data to the Gridview Public void ReadExcel (string sExcelFile, GridView dgBom){ DataTable ExcelTable;DataSet ds = new DataSet (); // Excel connectionOleDbConnection objConn = new OleDbConnection ("Provider = Microsoft. Jet. OLEDB.4.0;

); //Save file Dropdownlistbind (Savepath); //Bind DropDownList } } 4. Bind DropDownList function /// ///binding DropDownList/// /// Path protected voidDropdownlistbind (stringSavepath) { stringMyString ="provider=microsoft.ace.oledb.12.0;data Source = '"+ Savepath +"'; Extended properties= ' Excel 8.0; hdr=yes;imex=1; '";//connect an

The dataset is directly output into excel, which solves the problem that the grid control only displays part of the data on pages. Introduction I did this when I wanted to do a quick export of an entireDataset(Multiple tables) to excel. I didn't add any additional mizmization to the fields, but I did want to make sure

Asp. NET Export data to ExcelThis method simply saves the ASP. HTML page to the XLC but instead of reading the suffix, Excel can read it, and then I can see that there are other ways to export the data and generate it using templates.Here is the codeCreate a new asp.ne tweb application paste the code in.HTML page codeNext is the code in the CS pageUsing System;Us

This article mainly describes how to bind data to the GridView and then lead to Excel, the need for friends can refer to the following nbsp; Code as follows: using system;nbsp; using system.collections.generic;nbsp; using system.linq;nbsp; using System.Web; nbsp; using system.web.ui;nbsp; using system.web.ui.webcontrols;nbsp; using System.Data. SqlClient;nbsp; using System.Data;nbsp; nbsp; public partial

Source: http://www.csyh.comAlthough DTs in SQL Server can also import data into excel, it is better to useProgramFlexible,Main ProgramCodeIn the button function. Applicable to the read data section of report development :)I deleted a lot of junk code from the original program, leaving only the code that mainly works. // Add namespace Using System.

adapter = new OleDbDataAdapter (cmd ); DataSet ds = new DataSet (); Adapter. Fill (ds ); Con. Close ();} My Excel table only has one County table, but two tables are returned for query: Country and Country $ Print_Titles. When using the SQL statement: select * from ["+ sheetName +"] "; when reading table data, it ca

// Import Excel , returns a dataset Public dataset inputexcel (string path){String strconn = "provider = Microsoft. Jet. oledb.4.0;" + "Data Source =" + path + ";" + "extended properties = Excel 8.0 ;";Oledbconnection conn = new oledbconnection (strconn );Conn. ope

datagrid|excel| Client | data | download Method One: Export to a CSV file, store on the server side of any path, and then download to the customer Advantages: 1, can be authenticated to the customer after downloading, if put to a non-web directory there is no corresponding URL, customers can not download at any time. 2, but also because the file generated, so occupy the space of the server, but can be stor

The example in this article describes how the ASP.net implementation imports multiple sheet data from Excel into SQL Server. Share to everyone for your reference, specific as follows: The public DataSet GetDataSet (string filePath) {string connstr = string. Format ("Provider=Microsoft.Jet.OLEDB.4.0;Data source= '

Public Shared Sub ExportExcelRpt (ByVal sqlds As DataSet) Dim xlApp As New Excel. Application Dim xlBook As Excel. Workbook Dim xlSheet As Excel. Worksheet Dim rowIndex, colIndex As Integer RowIndex = 1 ColIndex = 0 XlApp = CType (CreateObject ("Excel. Application"),

insert Data{if (TextBox1.Text = = "" | | TextBox2.Text = = "" | | TextBox3.Text = = "" | | Textbox4.text = = "" | | Textbox5.text = = ""){MessageBox.Show ("Input value cannot be empty!") ");}Else{String connstring = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=example.xls; Extended properties= ' Excel 8.0; Hdr=yes ' ";//hdr=yes indicates that the first row is u

In fact, there is no difference between displaying the data in the Excel table in the datagridview datagriand reading the data in the database, except that the connection fields are slightly different when you create a database connection. Private void btnshow_click (Object sender, eventargs E){Openfiledialog ofd = new openfiledialog ();// Select an

Example: The company fruit sales in accordance with the region, store, fruit classification statistics show, the same type of data folding together, the client wants to see where to click on the "+" number expand display (Figure 1). 1. Raw Data Preparation In the last period we have taught you to use Finereport V8.0 software to implement interactive report method, this time we use the softwar

When making an Excel file, you only need to define the template file and then fill in the data. Therefore, in order to reduce the error rate of new users and simplify development, a general base class is written to form a report, as long as the following code simply inherits the base class. The Code is as follows: Copy code Using System;Using System.

//working with Excel//Read Excel[Nonaction] Public StaticDataSet Exceltods (stringPath) {//Select the appropriate connection character according to the situation, refer to MSDN stringstrconn ="provider=microsoft.jet.oledb.4.0;"+"Data source="+ Path +";"+"Extended Properties=excel 8.0;"; //Open this comment a

1, first get a DataTablePublic DataTable GetTable (String sql){Sqlconnnection con=new SqlConnection (configurationmanager.connectionstrings["connectionStringName"]. ConnectionString);Con. Open ();SqlCommand cmd = new SqlCommand (sql, con);SqlDataAdapter SDA = new SqlDataAdapter (cmd);DataSet ds = new DataSet ();Sda. Fill (DS);Con. Close ();Return DS. Tables[0];}Implementation method of 2,

Method 1: export to a CSV file, store it in any path on the server, and download the file to the client. Advantages:1. You can perform identity authentication and then download it to the customer. If you put it in a non-web directory, there will be no corresponding URL and the customer will not be able to download it at any time.2. Because files are generated, the server space is occupied. However, you can store the file names in the database. You do not need to generate files repeatedly when do