Deletes a field expression by the field name.
procedure DeleteFieldExpression(const FieldName: string); overload;
Defines the name of the dataset field.
The method deletes a field expression by its field name. Also, a field expression can be deleted by its index using the overloaded DeleteFieldExpression method.
To add new field expression, TCustomEntityDataSet.AddFieldExpression method is used. To clear all dataset field expressions, the TCustomEntityDataSet.ClearFieldExpressions method is used.