IColumnSorter GetColumnSorter(ColumnDataType_t dataType)
{
IColumnSorter sorter;
if (!m_colSorters.TryGetValue(dataType , out sorter))
{
switch (dataType)
{
case ColumnDataType_t.Text:
sorter = new TextColumnSorter();
break;
case ColumnDataType_t.Integer:
sorter = new IntegerColumnSorter();
break;
case ColumnDataType_t.Float:
sorter = new FloatColumnSorter();
break;
case ColumnDataType_t.Time:
sorter = new TimeColumnSorter();
break;
default:
Assert(false);
break;
}
m_colSorters[dataType] = sorter;
}
return sorter;
}
void InsertColumns()
{
Assert(!InvokeRequired);
IDataColumn[] colHeader = m_dataProvider.DataSource.Columns;
ColumnHeader[] columns = new ColumnHeader[colHeader.Length];
for (int i = 0; i < columns.Length; ++i)
{
columns[i] = new ColumnHeader()
{
Text = colHeader[i].Caption,
TextAlign = HorizontalAlignment.Center,
Tag = colHeader[i].DataType,
}
}
;
m_lvData.Columns.AddRange(columns);
}
void InsertItems(ListViewEntry[] items)
{
Assert(!InvokeRequired);
m_lvData.Items.AddRange(items);
TextLogger.Info("\nNbre d'enregistrements {0}.", m_dataProvider.Count);
}
void LoadDataAsync()
{
Func <ListViewEntry[]> loadData = () =>
{
ConnectProvider();
return(LoadItems());
};
var waitClue = new Waits.WaitClue(this);
Action <Task <ListViewEntry[]> > onError = t =>
{
Exception ex = t.Exception.InnerException;
TextLogger.Error(ex.Message);
waitClue.LeaveWaitMode();
if (ex is CorruptedStreamException == false)
{
ex = new CorruptedStreamException(innerException: ex);
}
throw ex;
};
Action <Task <ListViewEntry[]> > onSuccess = t =>
{
InsertColumns();
ListViewEntry[] items = t.Result;
InsertItems(items);
waitClue.LeaveWaitMode();
m_tslblStatus.Text = $"Nombre d'neregistrements: {m_lvData.Items.Count}";
};
waitClue.EnterWaitMode();
var loading = new Task <ListViewEntry[]>(loadData, TaskCreationOptions.LongRunning);
loading.ContinueWith(onSuccess,
CancellationToken.None,
TaskContinuationOptions.OnlyOnRanToCompletion,
TaskScheduler.FromCurrentSynchronizationContext());
loading.ContinueWith(onError, CancellationToken.None, TaskContinuationOptions.OnlyOnFaulted,
TaskScheduler.FromCurrentSynchronizationContext());
loading.Start();
}
IColumnSorter SorterFactory(int ndxColumn)
{
var dataType = (ColumnDataType_t)m_lvData.Columns[ndxColumn].Tag;
IColumnSorter sorter = null;
switch (dataType)
{
case ColumnDataType_t.Text:
sorter = new TextColumnSorter(ndxColumn);
break;
case ColumnDataType_t.Integer:
sorter = new IntegerColumnSorter(ndxColumn);
break;
case ColumnDataType_t.Float:
sorter = new FloatColumnSorter(ndxColumn);
break;
case ColumnDataType_t.Time:
sorter = new TimeColumnSorter(ndxColumn);
break;
}
Assert(sorter != null);
return(sorter);
}
