/// <summary>
/// Helper, automates the saving of items of virtual list to a CSV files.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public static void SaveVirtualListItemsToCSV(ListView virtualListViewEx1, RetrieveVirtualItemEventHandler handler)
{
using (SaveFileDialog dialog = new SaveFileDialog())
{
dialog.Title = "Select save file";
dialog.AddExtension = true;
dialog.RestoreDirectory = true;
dialog.DefaultExt = "csv";
dialog.Filter = "Text file (*.csv)|*.csv";
if (dialog.ShowDialog() != DialogResult.OK)
{
return;
}
StringBuilder builder = WinFormsHelper.VirtualListItemsToCSV(virtualListViewEx1, handler);
using (FileWriterHelper helper = new FileWriterHelper())
{
if (helper.Initialize(dialog.FileName) == false)
{
MessageBox.Show("Failed to save file.");
return;
}
helper.Write(builder.ToString());
}
}
}
void FileWriterHelper_DataWrittenEvent(FileWriterHelper helper, StreamWriter writer, string data)
{
if (_flushPolicy == FlushPolicyEnum.FlushEachEntry)
{
writer.Flush();
}
else if (_flushPolicy == FlushPolicyEnum.FlushAutomatic)
{
writer.AutoFlush = true;
}
else if (_flushPolicy == FlushPolicyEnum.FlushPeriodic)
{
if (DateTime.Now - _lastFlush > _periodicFlushInterval)
{
_lastFlush = DateTime.Now;
writer.Flush();
}
}
}
void FileWriterHelper_DataWrittenEvent(FileWriterHelper helper, StreamWriter writer, string data)
{
lock (_syncRoot)
{
if (_flushPolicy == FlushPolicyEnum.FlushEachEntry)
{
writer.Flush();
}
else if (_flushPolicy == FlushPolicyEnum.FlushAutomatic)
{
writer.AutoFlush = true;
}
else if (_flushPolicy == FlushPolicyEnum.FlushPeriodic)
{
if (DateTime.Now - _lastFlush > _periodicFlushInterval)
{
_lastFlush = DateTime.Now;
writer.Flush();
}
}
}
}
/// <summary>
/// Helper, automates the saving of items of virtual list to a CSV files.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public static void SaveVirtualListItemsToCSV(ListView virtualListViewEx1, RetrieveVirtualItemEventHandler handler)
{
using (SaveFileDialog dialog = new SaveFileDialog())
{
dialog.Title = "Select save file";
dialog.AddExtension = true;
dialog.RestoreDirectory = true;
dialog.DefaultExt = "csv";
dialog.Filter = "Text file (*.csv)|*.csv";
if (dialog.ShowDialog() != DialogResult.OK)
{
return;
}
StringBuilder builder = WinFormsHelper.VirtualListItemsToCSV(virtualListViewEx1, handler);
using (FileWriterHelper helper = new FileWriterHelper())
{
if (helper.Initialize(dialog.FileName) == false)
{
MessageBox.Show("Failed to save file.");
return;
}
helper.Write(builder.ToString());
}
}
}