How to download Existing CSV file on button click in User defined location in Windows Application

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Hi all,

I have created a CSV file with data in Windows Application successfully.
On button click i need to download the CSV file in user defined location.

I have CSV file path path = "MyProjectpath../.csv";
How can i download this file on button click ?

In web application we use Response,

C#

Response.ClearContent();
           Response.AddHeader("content-disposition", "attachment;filename=Tickets.csv");
           Response.ContentType = "text/csv";

          ////
           Response.Write(sw.ToString());

           Response.End();

we cannot use Response in windows application .

How Can we do this Windows application in C# ?

Edit : I was Creating a setUp file(.exe). Customers can install setup in any folder. CSV file Exists in setup installed folder, i can't tell them copy CSV file from your installation path.
so, i am giving option to download

Posted 23-Jan-15 2:26am

dorababu407

Updated 23-Jan-15 2:34am

v3

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ZurdoDev 23-Jan-15 8:32am

Can't you just use File.Copy? https://msdn.microsoft.com/en-us/library/system.io.file.copy(v=vs.110).aspx

dorababu407 23-Jan-15 8:39am

File.Copy can only copy from source to destination file. it cannot download .
i want to open a Dialog to save file in user defined location.

ZurdoDev 23-Jan-15 8:41am

Download is really a web concept. You just want to use the SaveAs dialog then. https://msdn.microsoft.com/en-us/library/sfezx97z%28v=vs.90%29.aspx

dorababu407 23-Jan-15 8:56am

@RyanDev: thank you, i used SaveFileDialog it works for me

ZurdoDev 23-Jan-15 8:59am

Glad to hear. I'll post as solution.

dorababu407 23-Jan-15 8:59am

ok

2 solutions

Solution 2

SaveFileDialog saveFileDialog = new SaveFileDialog();
               saveFileDialog.Title = "Save as .csv File";
               saveFileDialog.Filter = "csv files (*.csv)|*.csv";
               saveFileDialog.FilterIndex = 2;

               saveFileDialog.FileName = "ExportData.csv";


               if (saveFileDialog.ShowDialog() == DialogResult.OK)
               {

                   if (saveFileDialog.FileName != "")
                   {

                       string filePath = saveFileDialog.FileName;

                       StreamWriter sw2 = new StreamWriter(filePath);

                       sw2.WriteLine("\"TicketId\",\"OrderDetailId\",\"IsTicketValidated\",\"ScanningTime\"");

                  // listObj is model list having Data
                       foreach (var line in listObj)
                       {
                           sw2.WriteLine(string.Format("\"{0}\",\"{1}\",\"{2}\",\"{3}\"",
                                                      line.TicketId,
                                                      line.OrderDetailId,
                                                      line.IsTicketValidated,
                                                      line.ScanningTime));
                       }

                       sw2.Close();

                   }
               }

Posted 23-Jan-15 3:17am

dorababu407

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ZurdoDev · Accepted Answer · 2015-01-23T02:59:00

Solution 1

You'll want to use the SaveAs Dialog. This allows the user to chose where to save the file. See https://msdn.microsoft.com/en-us/library/sfezx97z%28v=vs.90%29.aspx[^]

Posted 23-Jan-15 2:59am

ZurdoDev