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    TField.Clear

    Clear the field contents.

    Declaration

    Source position: db.pas line 420

    public 
procedure TField.Clear;  virtual;

    Description

    Clear clears the contents of the field. After calling this method the value of the field is Null and IsNull returns True.

    The dataset must be in edit mode to execute this method.

    Errors

    If the dataset is not in one of the edit modes, then executing this method will raise an EDatabaseError exception.

    See also

    Name Description
    TField.IsNull Is the field empty.
    TField.Value Value of the field as a variant value.