C# excel file downloading

ConnectionStrings[ "excelconn" ]. AddWithValue "id" , GridView1. ExecuteReader ; if dr. Clear ; Response. ToString ; Response. SetCacheability HttpCacheability. NoCache ; Response. BinaryWrite byte [] dr[ "data" ] ; Response. After downloading the zip file, extract the files and open it into the Visual Studio and make whatever changes in the connection string to your web.

Now run the application and select the file other than Excel which shows the following error as shown in the following, Now select the Excel file, which shows the following message after Suceessfully Uploaded, Now click on view files details. The gridview is shows uploaded files with details as shown below. The file will be opened in Excel as follows,.

View All. NET C. Vithal Wadje Updated date Jan 05, When a beginner joins a company or if there is a final round of interviews, known as a machine round, then most of the time the team leader gives the Candidate the first assignment to create an application which allows the end user to upload only Excel files and display it in a grid view and download it.

Is there anyway I can get this to download as a straight excel file? Dispose ; and Marshal. Release obj ; i dont think NPOI manage that. Bonshington Bonshington 3, 2 2 gold badges 24 24 silver badges 20 20 bronze badges. Sign up or log in Sign up using Google.

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NET to programmatically control other applications. Automation to Excel permits you to perform actions such as creating a new workbook, adding data to the workbook, or creating charts. With Excel and other Microsoft Office applications, virtually all of the actions that you can perform manually through the user interface can also be performed programmatically by using Automation.

Excel exposes this programmatic functionality through an object model. The object model is a collection of classes and methods that serve as counterparts to the logical components of Excel. For example, there is an Application object, a Workbook object, and a Worksheet object, each of which contain the functionality of those pieces of Excel.