/// <summary>
/// Converts the specified value.
/// </summary>
/// <param name="value">The value.</param>
/// <param name="arguments">The arguments.</param>
/// <returns>
/// The converted value.
/// </returns>
public override object Convert(object value, SharePointListItemConversionArguments arguments)
{
TaxonomyValue convertedValue = null;
if (value == DBNull.Value)
{
return null;
}
var taxonomyFieldValue = value as TaxonomyFieldValue;
if (taxonomyFieldValue == null)
{
var stringValue = value as string;
if (!string.IsNullOrEmpty(stringValue))
{
taxonomyFieldValue = new TaxonomyFieldValue(stringValue);
}
}
if (taxonomyFieldValue != null && !string.IsNullOrEmpty(taxonomyFieldValue.TermGuid))
{
if (SPContext.Current != null)
{
// Resolve the Term from the term store, because we want all Labels and we want to
// create the TaxonomyValue object with a label in the correct LCID (we want one with
// LCID = CurrentUICUlture.LCID
Term underlyingTerm = this.taxonomyService.GetTermForId(SPContext.Current.Site, new Guid(taxonomyFieldValue.TermGuid));
if (underlyingTerm != null)
{
convertedValue = new TaxonomyValue(underlyingTerm);
}
}
else
{
// We don't have access to a SPContext (needed to use the TaxonomyService), so we need to
// fall back on the non-UICulture-respecting TaxonomyValue constructor
convertedValue = new TaxonomyValue(taxonomyFieldValue);
}
}
return convertedValue;
}
private static TaxonomyValue GetTaxonomyValueForLabelInternal(TermStore termStore, Group termStoreGroup, TermSet termSet, string termLabel)
{
Term term = GetTermForLabelInternal(termStore, termStoreGroup, termSet, termLabel);
TaxonomyValue value = null;
if (term != null)
{
value = new TaxonomyValue(term);
}
return value;
}
/// <summary>
/// Converts the specified value.
/// </summary>
/// <param name="value">The value.</param>
/// <param name="arguments">The arguments.</param>
/// <returns>
/// The converted value.
/// </returns>
public override object Convert(object value, DataRowConversionArguments arguments)
{
if (value == System.DBNull.Value)
{
return null;
}
TaxonomyValue convertedValue = null;
var taxonomyFieldValue = value as TaxonomyFieldValue;
if (taxonomyFieldValue == null)
{
var stringValue = value as string;
if (!string.IsNullOrEmpty(stringValue))
{
var fieldObject = arguments.FieldCollection.Cast<SPField>()
.FirstOrDefault(f => f.InternalName == arguments.ValueKey);
if (fieldObject != null)
{
taxonomyFieldValue = new TaxonomyFieldValue(fieldObject);
taxonomyFieldValue.PopulateFromLabelGuidPair(stringValue);
}
else
{
return null;
}
}
}
if (taxonomyFieldValue != null && !string.IsNullOrEmpty(taxonomyFieldValue.TermGuid))
{
if (SPContext.Current != null)
{
// Resolve the Term from the term store, because we want all Labels and we want to
// create the TaxonomyValue object with a label in the correct LCID (we want one with
// LCID = CurrentUICUlture.LCID
Term underlyingTerm = this.taxonomyService.GetTermForId(SPContext.Current.Site, new Guid(taxonomyFieldValue.TermGuid));
if (underlyingTerm != null)
{
convertedValue = new TaxonomyValue(underlyingTerm);
}
}
else
{
// We don't have access to a SPContext (needed to use the TaxonomyService), so we need to
// fall back on the non-UICulture-respecting TaxonomyValue constructor
convertedValue = new TaxonomyValue(taxonomyFieldValue);
}
}
return convertedValue;
}
