OpenCSVAsync(Int32,Stream,TextFileOpenFlags,Encoding) Method

Loads the CSV (comma-separated values) file asynchronously.

Syntax

Visual Basic
C#

'Declaration
 
Public Overloads Function OpenCSVAsync( _
   ByVal sheetIndex As Integer, _
   ByVal stream As Stream, _
   ByVal flags As TextFileOpenFlags, _
   ByVal encoding As Encoding _
) As IAsyncAction

'Usage
 
Dim instance As GcSpreadSheet
Dim sheetIndex As Integer
Dim stream As Stream
Dim flags As TextFileOpenFlags
Dim encoding As Encoding
Dim value As IAsyncAction
 
value = instance.OpenCSVAsync(sheetIndex, stream, flags, encoding)

public IAsyncAction OpenCSVAsync( 
   int sheetIndex,
   Stream stream,
   TextFileOpenFlags flags,
   Encoding encoding
)

Parameters

sheetIndex: The destination sheet index for loading.
stream: Stream from which to load.
flags: The import flags.
encoding: The encoding.

Example

This example uses the OpenCsvAsync method.

C#
VB.NET

private async void Button_Click_1(object sender, RoutedEventArgs e)
        {
            try
            {
                var filePicker = new Windows.Storage.Pickers.FileOpenPicker();
                filePicker.FileTypeFilter.Add(".csv");                
                Windows.Storage.StorageFile storageFile = await filePicker.PickSingleFileAsync();
                if (storageFile != null)
                {
                    using (var stream = await storageFile.OpenStreamForReadAsync())
                    {
                 await gcSpreadSheet1.Sheets[0].OpenCsvAsync(stream, GrapeCity.Xaml.SpreadSheet.Data.TextFileOpenFlags.None);
                //await gcSpreadSheet1.Sheets[0].OpenCsvAsync(stream, GrapeCity.Xaml.SpreadSheet.Data.TextFileOpenFlags.None, System.Text.Encoding.UTF8);
                //await gcSpreadSheet1.OpenCSVAsync(0, stream, GrapeCity.Xaml.SpreadSheet.Data.TextFileOpenFlags.None);
                //await gcSpreadSheet1.OpenCSVAsync(0, stream, GrapeCity.Xaml.SpreadSheet.Data.TextFileOpenFlags.None);
                    }
                }
            }
            catch (Exception ex)
            {
                Windows.UI.Popups.MessageDialog dialog = new Windows.UI.Popups.MessageDialog(ex.Message, "Error");
                dialog.ShowAsync();
            }
        }

Private Async Sub Button_Click_1(sender As Object, e As RoutedEventArgs)
        Try
            Dim filePicker As New Windows.Storage.Pickers.FileOpenPicker()
            filePicker.FileTypeFilter.Add(".csv")
            Dim storageFile As Windows.Storage.StorageFile = Await filePicker.PickSingleFileAsync()
            If storageFile IsNot Nothing Then
                Using stream = Await storageFile.OpenStreamForReadAsync()
             await GcSpreadSheet1.Sheets(0).OpenCsvAsync(stream, GrapeCity.Xaml.SpreadSheet.Data.TextFileOpenFlags.None)
            'await GcSpreadSheet1.Sheets(0).OpenCsvAsync(stream, GrapeCity.Xaml.SpreadSheet.Data.TextFileOpenFlags.None, System.Text.Encoding.UTF8)         
            'await GcSpreadSheet1.OpenCSVAsync(0, stream, GrapeCity.Xaml.SpreadSheet.Data.TextFileOpenFlags.None)
            'await GcSpreadSheet1.OpenCSVAsync(0, stream, GrapeCity.Xaml.SpreadSheet.Data.TextFileOpenFlags.None, System.Text.Encoding.UTF8)   
                End Using
            End If
        Catch ex As Exception
            Dim dialog As Windows.UI.Popups.MessageDialog = New Windows.UI.Popups.MessageDialog(ex.Message, "Error")
            dialog.ShowAsync()
        End Try
    End Sub

Reference

GcSpreadSheet Class
GcSpreadSheet Members
Overload List