TCustomDBGridEh.GetFooterValue Method

Returns a footer value depending on Column.ValueType

function GetFooterValue(Row: Integer; Column: TColumnEh): String; virtual;

if Column.ValueType = fvtNon, then function return empty string 

if Column.ValueType = fvtSum, then function return sum of Column.Field 

f Column.ValueType = fvtCount, then function return count of records (Local filter taken into account). 

f Column.ValueType = fvtFieldValue, then function return value of field defined in Column.Footer.FieldName property. 

f Column.ValueType = fvtStaticText, then function return Column.Footer.Value.

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