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TCustomDBGrid.ValidFieldIndex Method
TCustomDBGrid Class | TCustomDBGrid Members | DBGrids Namespace | Description | See Also
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Indicates whether an index into the columns array refers to a valid field in the dataset.

Pascal
function ValidFieldIndex(FieldIndex: Integer): Boolean;
C++
__fastcall Boolean ValidFieldIndex(int FieldIndex);
Description

Call ValidFieldIndex to determine whether a column displays data from a field in the dataset. ValidFieldIndex returns true if the column is associated with a database field. ValidFieldIndex returns false if the column is a calculated field or if the field for the column is undefined. 

 

See Also
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