private void SaveFieldData()
{
var newFields = (
from DataGridViewRow row
in fieldData.Rows
where !row.IsNewRow
select row.Cells[0].Value.ToString()
into fieldName
select new Field {
fieldName = fieldName
}).ToList();
ApplicationData.Fields.Clear();
foreach (var i in newFields)
{
ApplicationData.AddField(i);
}
}