/// <summary>
/// Converts a value from a string to a DataColumn.
/// </summary>
/// <param name="context">The context.</param>
/// <param name="culture">The culture.</param>
/// <param name="value">The value to convert.</param>
/// <returns>A DataColumn.</returns>
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
if (!string.IsNullOrEmpty((string)value))
{
ISecondaryDataSourceFieldsProvider provider = (ISecondaryDataSourceFieldsProvider)context.Instance;
List <DataTableField> fields = provider.GetSecondaryDataSourceFields();
string columnName = Regex.Match((string)value, CoreUtility.FieldMatchPattern).Groups[1].Value;
return(fields.First(field => field.ColumnName == columnName));
}
return(null);
}
/// <summary>
/// Gets a list of Operation DataColumn objects.
/// </summary>
/// <param name="context">The context.</param>
/// <returns>The list of Operation DataColumn objects.</returns>
public override StandardValuesCollection GetStandardValues(ITypeDescriptorContext context)
{
ISecondaryDataSourceFieldsProvider provider = (ISecondaryDataSourceFieldsProvider)context.Instance;
return(new StandardValuesCollection(provider.GetSecondaryDataSourceFields()));
}
