private RadListSource <TDataItem> GetRelatedBindingSource(string dataMember)
{
if (this.relatedBindingSources == null)
{
this.relatedBindingSources = new Dictionary <string, RadListSource <TDataItem> >();
}
foreach (string key in this.relatedBindingSources.Keys)
{
if (string.Equals(key, dataMember, StringComparison.OrdinalIgnoreCase))
{
return(this.relatedBindingSources[key]);
}
}
RadListSource <TDataItem> radListSource = new RadListSource <TDataItem>(this.source);
radListSource.bindingContext = this.bindingContext;
radListSource.Bind(this.DataSource, dataMember);
this.relatedBindingSources[dataMember] = radListSource;
return(radListSource);
}
private void SyncCurrent(TDataItem item)
{
if ((object)item == null)
{
RadListSource <TDataItem> sourceCollection = this.SourceCollection as RadListSource <TDataItem>;
if (sourceCollection != null && sourceCollection.Count > 0 && (sourceCollection.Position >= 0 && sourceCollection.Position < sourceCollection.Count))
{
item = sourceCollection[sourceCollection.Position];
}
}
if ((object)item == null && this.Count > 0)
{
item = this.Items[0];
}
if ((object)item == null)
{
return;
}
if (!this.PassesFilter(item))
{
if (this.Count < 0)
{
return;
}
this.SetCurrentPositionCore(this.Count == 0 ? -1 : 0, true, CurrentChangeReason.Sync);
}
else
{
if (!this.HasDataOperation)
{
return;
}
int newPosition = this.IndexOf(item);
if (newPosition == this.CurrentPosition)
{
return;
}
this.MoveCurrentToPosition(newPosition);
}
}
