asp net read excel file into datatable

","attachment;filename="+fileinfo.name); -Response.AddHeader ("Content-length", fileInfo.Length.ToString ()); -Response.AddHeader ("content-transfer-encoding","binary"); the //tell the browser to pass to the user is a non-txt,rar, etc. does not appear on the Ieem of a file, do not need to open in the browser page, need to download directly -Response.ContentType ="Application/octet-stream"; -response.contentencoding = System.Text.Encodi

This article mainly introduces you about how to read the configuration file in the ASP. NET Core Class library project, this is a friend raised a question, the article through the example code introduced by the very detailed, to everyone's study or work has a certain reference learning value, The friends who need to ha

Cocould not load file or assembly 'Microsoft. Office. Interop. Excel, Version = 11.0.0.0, Culture = neutral, PublicKeyToken = 71e9bce111e9429c' or one of its dependencies. There are two reasons for this problem: 1. "Excel 2003" is not installed in the system "; 2. "Excel 2003" is installed in the system, but it is not

Cocould not load file or assembly 'Microsoft. Office. InterOP. Excel, version = 11.0.0.0, culture = neutral, publickeytoken = 71e9bce111e9429c' or one of its dependencies. There are two reasons for this problem: 1. "Excel 2003" is not installed in the system "; 2. "Excel 2003" is installed in the system, but it i

Console Project JsonconfigsampleWe need it. The ASP. NET Core reference comes in, we can add Microsoft.AspNetCore.All directlyThen create a new JSON file Class.json and build to the bin{ "Classno":"1", "Classdesc":"ASP. NET Core 101", "Students": [ { "name":"Jess

Public System. data. datatable getexceldata (string excelfilepath) {try {excel. application APP = new excel. application (); excel. sheet sheet; excel. workbook workbook; system. data. datatable dt = new system. data.

ASP. NET read TXT file (Notepad) content: using System; Using System.Collections; Using System.Configuration; Using System.Data; Using System.Web; Using System.Web.Security; Using System.Web.UI; Using System.Web.UI.HtmlControls; Using System.Web.UI.WebControls; Using System.Web.UI.WebControls.WebPar

How ASP. NET Core reads the configuration file, and today we're going to learn.The configuration system for ASP. NET core is different from previous versions of ASP. System.Configuration and XML configuration

; "},"Logging": {"Includescopes": false,"LogLevel": {"Default": "Debug","System": "Information","Microsoft": "Information"}},"ApplicationConfiguration": {File Upload Path"Fileuppath": "/upload/",Whether to enable single-user sign-on"Issinglelogin": "True",Allow upload of file formats"Attachextension": "Gif,jpg,jpeg,png,bmp,rar,zip,doc,docx,xls,xlsx,ppt,pptx,txt,flv,apk,mp4,mpg,ts,mpeg,mp3,bak , pdf ",Pictur

(BaseInfoTemplateFile. FileName); // get the file suffix If (extension! = Null) { String fileException = extension. ToLower (); If (fileException = ". xlsx" | fileException = ". xls ") { # Region reading Excel String fileFolder = Server. MapPath ("~ /_ Layouts/15/images/"+ folderTemp +" Upfile /"); If (! Directory. Exists (fileFolder) // root Directory { Directory. CreateDirec

1 PrivateDataTable getexceltable (DataRow row)2 {3 4 stringPath = configurationmanager.appsettings["Uploadpath"]. ToString ();5Path = System.IO.Path.Combine (path, row["Bb_file_path"]. ToString (). Replace (".. /",""));6 stringstrconn ="provider=microsoft.jet.oledb.4.0;"+"Data source="+ Path +";"+"Extended Properties=excel 8.0;";7OleDbConnection conn =NewOleDbConnection (strconn);8 Conn. Open ();9OleDbDataAd

datatable returned by the server and display it on the page. Run the sample program and click the button on the page. "A circular reference was detected while serializing an object of Type 'System. reflection. module '. "exception information" appears as we wish. Cause of exception The cause of the exception is also very simple: the server-side able contains several datarow, and datarow also contains references to the

execute at application startup4 stringstruser ="User1";5 stringStrpwd ="PWD1";6 stringStrmapurl =@"\\192.168.1.198\Image";7 8System.Diagnostics.ProcessStartInfo p =NewSystem.Diagnostics.ProcessStartInfo ("Net.exe"9," Use"+ Strmapurl +" \""+ Strpwd +"\ "/user:\""+ struser +"\"");TenP.windowstyle =System.Diagnostics.ProcessWindowStyle.Hidden; One System.Diagnostics.Process.Start (p); A}Then in the program you can use \\192.168.1.198\Image directly to fetch.Reference article: http:

DataTable for the data table to be exportedDataGrid dg = new DataGrid ();Dg. DataSource = DataTable;Dg. DataBind ();If the file name is in Chinese, specify the encodingString fileName = Httputility.urlencode ("Jobhistorylist", Encoding.UTF8). ToString ();Set the encoding formatHttpContext.Current.Response.Clear ();HttpContext.Current.Response.Charset = "UTF-8";//

the approach in this article is primarily to implement a read-write XML file using serialization and deserialization, noting that the Web. config file, which is not a specified one, refers to a custom config file. The following is an XML read-write operation class, containin

Copy codeThe Code is as follows:////// Export the data in the DataTable to the specified Excel File////// Web Page Object/// The DataTable object that contains the exported data/// Excel file namePublic static void Export (System.

Copy codeThe Code is as follows :/// /// Export the data in the DataTable to the specified Excel File /// /// Web Page Object /// The DataTable object that contains the exported data /// Excel file name Public static void Export (

add an overhead grid on either side of the equals sign. AppSettings configuration section:The appsettings configuration section is a configuration for the entire program, and if it is a configuration for the current user, use the UserSettings configuration section in the same format as the following configuration writing requirements. 4. Read and Update app. ConfigFor read-write to the app. Config

Asp.net DataTable: name of the custom Excel column exported, asp. netdatatable 1. Add reference NPOI. dll 2. Add the cs File Header Using NPOI. HSSF. UserModel; Using NPOI. SS. UserModel; Using System. IO; 3. The Code is as follows: Using System; using System. collections. generic; using System. web; using System. web.

Copy Code code as follows: /// Export data from a DataTable to a specified Excel file /// Web Page objects The DataTable object that contains the exported data The name of the Excel file public static void Export (Syste