internal void Validate()
{
if (Collection == null)
{
throw new RequiredPropertyException(nameof(Collection), this.GetType());
}
if (Columns == null)
{
throw new RequiredPropertyException(nameof(Columns), this.GetType());
}
else
{
foreach (var tgColumn in Columns)
{
tgColumn.Validate();
}
}
if (GroupOptions != null)
{
GroupOptions.Validate();
if (Columns.All(it => it.PropertyName != GroupOptions.GetGroupingColumnName()))
{
throw new IncorrectTgOptionsException("Columns must contain grouping property");
}
}
}
internal void AddGroupColumnIfNotSet()
{
if (GroupOptions != null)
{
if (Columns.Count(it => it.PropertyName == GroupOptions.GetGroupingColumnName()) == 0)
{
IList <TgColumn> columns = Columns as IList <TgColumn>;
columns.Insert(0, new TgColumn <T>
{
Property = GroupOptions.GroupingColumn,
AutoWidth = true,
Style = new TgExcelStyle()
{
VerticalAlignment = ExcelVerticalAlignment.Center
}
});
Columns = columns;
}
}
}
