本文整理汇总了C#中System.IO.StreamWriter.WriteCSVLineAsync方法的典型用法代码示例。如果您正苦于以下问题：C# StreamWriter.WriteCSVLineAsync方法的具体用法？C# StreamWriter.WriteCSVLineAsync怎么用？C# StreamWriter.WriteCSVLineAsync使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.IO.StreamWriter的用法示例。
在下文中一共展示了StreamWriter.WriteCSVLineAsync方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: Export
public async void Export()
{
exporting = true;
try
{
var dialog = new SaveFileDialog();
if (dialog.ShowDialog() == true)
{
StreamWriter sw = new StreamWriter(dialog.FileName, false);
var selectedAnalysis = SelectedAnalysis.ToList();
var cols = new string[] { "Code", "Latitude", "Longitude" }.Union(selectedAnalysis.Select(a => "\"" + a.Name + "\"")).ToArray();
await sw.WriteCSVLineAsync(cols);
var localities = selectedAnalysis.SelectMany(a => a.Frequencies).Select(f => f.Locality).Distinct().OrderBy(l => l.Code).ToList();
var step = 1.0f / localities.Count;
Progress = 0;
var enumerators = selectedAnalysis.Select(a => a.Frequencies.OrderBy(f => f.Locality.Code).GetEnumerator()).ToArray();
var hasElements = enumerators.Select(e => e.MoveNext()).ToArray();
foreach (var l in localities)
{
Progress += step;
StringBuilder sb = new StringBuilder();
sb.Append(string.Join(",", l.Code, l.Location == null ? string.Empty : l.Location.Latitude.ToString(), l.Location == null ? string.Empty : l.Location.Longitude.ToString()));
sb.Append(",");
for (var i = 0; i < enumerators.Length; i++)
{
if (hasElements[i] && enumerators[i].Current.Locality == l)
{
sb.Append(enumerators[i].Current.Value.ToString());
hasElements[i] = enumerators[i].MoveNext();
}
if (i < enumerators.Length - 1)
sb.Append(",");
}
await sw.WriteLineAsync(sb.ToString());
await Task.Delay(1);
}
sw.Flush();
sw.Close();
Progress = 1;
}
}
finally
{
exporting = false;
}
}