protected IEnumerable <IBaseModel> LoadModel(params IListParameter[] parameters)
{
_cancellationTokenSource = new CancellationTokenSource();
//var ret = TaskEx.Run(() => AutoCompleteDataManager.Get<IBaseModel>(parameters), _cancellationTokenSource.Token);
if (AutoCompleteDataManager == null)
{
return(null);
}
var ret = AutoCompleteDataManager.Get <IBaseModel>(parameters);
_cancellationTokenSource = null;
return(ret);
}
private void AutoComplete()
{
// ReSharper disable once TooWideLocalVariableScope
int count;
if (!ClearOnLeave)
{
return;
}
if (Text.Length < OriginalTextStartPosition)
{
OriginalTextStartPosition = 0;
}
var strlen = Text.Length - OriginalTextStartPosition - SelectionLength;
if (strlen > Text.Length - OriginalTextStartPosition || strlen < 0)
{
strlen = Text.Length - OriginalTextStartPosition;
}
var searchTerm = Text.Substring(OriginalTextStartPosition, strlen);
if (!searchTerm.IsEmpty() && !Array.Exists(AutoCompleteCachedSource, s => s.Contains(searchTerm)) &&
searchTerm.Length > AutocompleteMinimumTextLength)
{
IQueryable <IBaseModel> result = null;
if (AutoCompleteWheretermFormater != null)
{
result = AutoCompleteDataManager
.Get <IBaseModel>(Paging.Instance(0, 1), out count, AutoCompleteWheretermFormater(searchTerm))
.AsQueryable();
}
else if (AutoCompleteWhereExpression != null)
{
if (!(AutoCompleteDataManager is IExtendedQueryableDataManager))
{
throw new Exception(string.Format("Autocomplete field {0} is using AutoCompleteWhereExpression property, but the AutoCompleteDataManager property does not implement IExtendedQueryableDataManager.", Name));
}
var param = new AutoCompleteWhereExpressionParam();
AutoCompleteWhereExpression(searchTerm, param);
result = ((IExtendedQueryableDataManager)AutoCompleteDataManager)
.Get <IBaseModel>(Paging.Instance(0, 1), out count, param.Expression, param.Parameters)
.AsQueryable();
}
if (result != null && result.Any())
{
Value = (int)result.Select(model => model.Id).ToArray().GetValue(0);
DisplayString = result.Select(AutoCompleteDisplayFormater).ToArray().GetValue(0).ToString();
ByAuto = true;
var strtemp = searchTerm;
if (AutoCompleteText != null)
{
Text = result.Select(AutoCompleteText).ToArray().GetValue(0).ToString();
}
else
{
Text = DisplayString;
}
OriginalTextStartPosition = Text.ToLower().IndexOf(strtemp.ToLower(), StringComparison.Ordinal);
var startSel = OriginalTextStartPosition + strtemp.Length;
SelectionStart = startSel;
SelectionLength = Text.Length - startSel;
OriginalTextStartPosition = OriginalTextStartPosition < 0 ? 0 : OriginalTextStartPosition;
DisplayString = Text;
}
else
{
Value = null;
DisplayString = string.Empty;
}
}
if (Text.IsEmpty())
{
Value = null;
DisplayString = string.Empty;
}
}