private Task<Tuple<bool, Exception>> exportTSV(IStoreDataManager pMan, StatDataSet oSet, String filename,
CancellationToken cancellationToken, IProgress<int> progress)
{
return Task.Run<Tuple<bool, Exception>>(() =>
{
bool bRet = false;
Exception err = null;
try
{
var xx = pMan.GetDataSetIndexes(oSet);
if (xx == null)
{
return new Tuple<bool, Exception>(bRet, err);
}
var indexes = xx.Item1;
if (indexes == null)
{
return new Tuple<bool, Exception>(bRet, err);
}
int nMaxIndex = indexes.Max() + 1;
int nm1 = nMaxIndex - 1;
double dTotal = (double)nMaxIndex;
StringBuilder sb = new StringBuilder();
int nCur = 0;
var varsCol = oSet.Variables.ToArray();
int nVars = varsCol.Length;
for (int i = 0; i < nVars; ++i)
{
if (i > 0)
{
sb.Append("\t");
}
sb.Append(varsCol[i].Name);
}// i
sb.Append("\n");
if (progress != null)
{
int f = (int)((nCur++ / dTotal) * 100.0 + 0.5);
progress.Report(f);
}
for (int irow = 0; irow < nMaxIndex; ++irow)
{
if (cancellationToken.IsCancellationRequested)
{
break;
}
String[] vals = new String[nVars];
for (int i = 0; i < nVars; ++i)
{
vals[i] = "N/A";
}// i
if (indexes.Contains(irow))
{
var yy = pMan.GetDataSetIndivValues(oSet, irow);
if ((yy != null) && (yy.Item1 != null) && (yy.Item2 == null))
{
var xvals = yy.Item1;
for (int j = 0; j < nVars; ++j)
{
int ind = varsCol[j].Id;
var qq = from x in xvals where x.VariableId == ind select x;
if (qq.Count() > 0)
{
var z = StatHelpers.ConvertValue(qq.First().DataStringValue);
if (!String.IsNullOrEmpty(z))
{
vals[j] = z;
}
}// ok
}// j
}// ok
}
for (int i = 0; i < nVars; ++i)
{
if (i > 0)
{
sb.Append("\t");
}
sb.Append(vals[i]);
}// i
if (irow < nm1)
{
sb.Append("\n");
}
if (progress != null)
{
int f = (int)((nCur++ / dTotal) * 100.0 + 0.5);
progress.Report(f);
}
}// irow
String s = sb.ToString();
String ss = s.Replace(",", ".");
FileStream fs = new FileStream(filename, FileMode.OpenOrCreate);
StreamWriter writer = new StreamWriter(fs);
writer.Write(ss);
writer.Close();
bRet = true;
}// try
catch (Exception ex)
{
err = ex;
}
return new Tuple<bool, Exception>(bRet, err);
}, cancellationToken);
}
private Task importPhotosAsync(IStoreDataManager pMan, String[] filenames,
CancellationToken cancellationToken,
IProgress<int> progress)
{
return Task.Run(() =>
{
try
{
for (int i = 0; i < filenames.Length; ++i)
{
if (cancellationToken.IsCancellationRequested)
{
break;
}
String filename = filenames[i];
if (!String.IsNullOrEmpty(filename))
{
var xx = PhotosModelView.GetJPEGBytes(filename);
byte[] data = xx.Item1;
String name = xx.Item2;
Exception err = xx.Item3;
if ((data != null) && (data.Length > 1) && (err == null) && (!String.IsNullOrEmpty(name)))
{
PhotoDesc oPhoto = new PhotoDesc();
oPhoto.DataBytes = data;
oPhoto.Name = name;
var yy = pMan.MaintainsPhoto(oPhoto);
if ((yy.Item1 == null) || (yy.Item2 != null))
{
break;
}
}// data
}
if (progress != null)
{
progress.Report(i);
}
}// i
}
catch (Exception /*ex */)
{
}
}, cancellationToken);
}//importPhotosAsync
}// CommitChanges
#endregion // Methods
#region Helpers
private Tuple<int, DisplayItemsArray> refreshPhotosAsync(IStoreDataManager pMan)
{
DisplayItemsArray oRet = null;
int nRet = 0;
String s = this.SearchString;
var xx = pMan.SearchPhotosCount(s);
if ((xx != null) && (xx.Item2 == null))
{
nRet = xx.Item1;
}
var yy = pMan.SearchPhotos(s, this.Skip, this.Taken);
if ((yy != null) && (yy.Item2 == null))
{
var col = yy.Item1;
oRet = new DisplayItemsArray();
foreach (var v in col)
{
DisplayItems vv = new DisplayItems();
vv.Tag = v;
vv.Add(new DisplayItem(v.DataBytes));
vv.Add(new DisplayItem(v.Name));
oRet.Add(vv);
}// v
}
return new Tuple<int, DisplayItemsArray>(nRet, oRet);
}// refreshPhotosAsync