{ Private declarations } public
{ Public declarations } end;
var
Forml: TForml;
BmpPath: string; // .
// Data .
Implementation
($R *.DFM}
// Imagel
procedure ShowFoto(foto: string);
begin
try
Forml.Imagel.Picture.LoadFromFile(BmpPath+foto);
Forml.Imagel.Visible:=True;
except
OnEFOpenError dobegin
MessageDlg(' '+foto+' .',
mtlnformation, [mbOk], 0);
end;
end;
end;
// (, ,
// )
ProcedureTForm1.TablelAfterScroll(DataSet: TDataSet); begin.
if form1.DBEdit3.Visible then
begin
form1.DBEditS.Visible:= False;
form1.Label4.Visible:=False;
end;
if Forml.DBEditS.Text <> "
then ShowFoto(Form1.DBEditS.Text)
else form1.Imagel.Visible:=False;
end;
//
ProcedureTForml.DBEdit3KeyPress(Sender: TObject; varKey: Char); begin
if (key = #13) then
if Forml.DBEdit3.Text <>''
then ShowFoto(Forml.DBEdit3.Text) //
else forml,Imagel.Visible:=False;
end;
//
procedure TForml.DBNavigatorlClick(Sender: TObject; Button:
TNavigateBtn);
Begin
CaseButton of nblnsert: begin
Imagel.Visible:=False;//
DBEdit3.Visible:=True; //
Label4.Visible:=True; //
end;
nbEdit: begin //
DBEdit3.Visible:=True; //
Label4.Visible:=True; //
end;
end;
end;
//
procedure TForml.TablelBeforeOpen(DataSet: TDataSet);
Begin
BmpPath:=ExtractFilePath(ParamStr(0))+'data\';
end;
End.
End.
(showFoto) TForm1.Table1AfterScroll, 䳿 AfterScrool Table1. AfterScrool (, , , ) DBNavigator. TForml.Table1AfterScroll (photo) Form1.DBEdit3.Text , , , .
(DBEdits) (Label4) . DBNavigator, 䳿 onclick TForm1.DBNavigatorlciick, DBEdits, ' .
TForm1.DBEdit3KeyPress OnKeyPress DBEdits. Edits (photo) ' <Enter> ( 13), TForm1.DBEdit3KeyPress ShowFoto.
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" ' -" , . . , .
, , "".
"" ( ), , School.db. school : Name ('), Fam (), class (), Adr () N ( ). Name, Fam, class Adr ( ), N , .
BDE Administrator, ( school.db) Database Desktop.
, , Table DataSource, , (.14).
14. Table1 DataSource1
| Tablel. DatabaseName Tablel. TableName Tablel. Active DataSourcel. Dataset | school. db True Tablel | ||
DBGrid, Data Controls (. 13). , , DBGrid .14.
. 13. DBGrid
.14. DBGrid
DBGrid . DBGridl 䳿, . . 17.15 DBGrid.
15. DBGrid
| Name | ' | ||
| DataSource | |||
| Columns | , | ||
| Options. dgTitles | |||
| Options. dgIndicator | . ϳ , , | ||
| Options. dgColumnResize | |||
| Options. dgColLines | , | ||
| Options. dgRowLines | , | ||
, , , ( DataSource), Columns. DataSource , Object Inspector. Columns, Object Inspector . (. 15).
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. 15.
, DBGrid , , Add New, ( ), , Object Inspector, (. 17.16). columns DBGrid TCoiumn. . column, DBGrid, .
16. column
| FieldName | , | ||
| Width | |||
| Font | , | ||
| Color | |||
| Alignment | . (taLeftJustify), (taCenter) (taRight Justify) | ||
| Title. Caption | . ' | ||
| Title.Alignment | . (taLeftJustify), (taCenter) (taRight Justify) | ||
| Title. Color | |||
| Title. Font | |||
FieldName, ' , , Title.Caption, . . 17 columns DBGridl.
17. DBGridl
| FieldName | Title. Caption | |||||
| DBGrid1. Columns [0] DBGrid1. Columns [1] | Fam Name | ' | ||||
| DBGrid1. Columns [2] DBGrid1. Columns [ 3 ] | Class Adr | , | ||||
, DBNavigator, - ( DataSource Table1).
. 17.16.
. 16. DBGrid1
ϳ . , , ' , , , Active - True.
, , Microsoft Excel. , (<Page Up> <Page Down>), , , . <Ins>, , <Del> . , , , , <F2>.
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