For Product Entrv - Computerized Sales und Inventory Management System

using System;

using System. Collections.Generic _; using System. Componentltodel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System. hlindows. Forms;

usi.ng System. Data. 5qlC1ient;

using System.IO;

using System . Security. Cryptography;

nillespace Sales_anrl_Inventory_Systen

{ public partial class

frmProduct

:

^Form

t

SqlDataReader

rdr

₌

nulli

DataTable

dtable

= neu DataTableo;

SqlConnection con =

nulli

SglCommand cmd

= nullj

DataTab1e

dt ₌

^n€wDataTable0;

ConnectionString cs

=

^neuConnectionStringO;

public

frmProducto

-

{ InitializeComponentO;

private void ) autoo

{ txtProductlD.Text

= -P-' + Cettlniqe(ey(6);

public ) static string Geflhique(ey(irrt u.{irg)

{

char[]

chars =

lm

^char[62];

chars

=' t2y56'r89'.fdrrlrrey0;

byte[]

data

= ne Se[l];

R'ECryptoserriceFrari"der

crypto

₌

ns

ffiCr?IrtoSerwiceProvider ⁽) ; cryyto -

&thrZeruBytes

(data ₎

;

data

= tE btrte[E!6ize];

cqrpto. CeilonZero$rtes (data ₎;

StringBuilder r-sult ₌ ll€r

StrlngBuilder(;axStze) _; for=ach (b3fte

b in

data)

{

result.Append(charsIb

X

(chars. Length] _I

);

return ) result.TostringO

private l void

frmProduct_Load(object sender, EventArgs e)

{

btnSave.Enabled =

falsej

FiJ.lCombo(

);

Autocomplete(

);

) public void

FillComboo {

con = ^newSqlConnectlon(cs.DBConn);

con.openO;

string ct =

"SELECT RTRII4(CategoryName) from T_Category

order

by cmd

=

^newSqlComand(ct);

try t

Categoryt{aile";

coagwhtlzed Sa rts fln{ ^rnventory

CmpanlName";

)

con. Close(

);

/ / / I / / / / / I / I / / / I I I / / / / / / I / I

/ select supplier

/ / / / / I / / I / /

/

con

=

^newSqlConnection(cs.DB€onn);

con. Open(

);

string

=

"SELECT SupplierlD,CompanyName FROM T_SUPPLIERS ORDER BY cmd = new SqlCommand(sp);

cmd.Connection

=

^con;

rdr ₌

cmd.ExecuteReader0;

while

(rdr.Read())

{ txtSupplierlD.Text = rdr[9].ToStringO.TrimO;

cmbSupplier. Items. Add ( rdr _[¹_]₎_;

)

con. Close(

);

catch )

(Exception ex)

{

ItessageBox. Show (ex. lGssage, "

Error",

llessageBoxButtons

-fi ,

l{essageBoxlcon. Error) ;

) )

private void

Reseto {

txtProductName.Text

= "";

cmbSubCategory.Text

= "';

cmbCategorY.Text

= "!

txtFeatures.Text

= ";

pictureBoxl.Irage = Pr"operties.lesarces.

^Ul;

c*SubGategory. Enabled =

fafsci hr0elete.Enabled

₌

false;

btnllpdate-En$led =

falsc;

frnSave-En*lad =

trr:;

ffioductn-.focusO;

l

prlvate Etu @Cl,'ct(6rcct

^sender,^EventArgs^e)

{ nescto;

)

private void @Cl-ict(object

^sender,EventArgs e)

t if (ffiPro*rctlE.Text : -')

{

lbssageBox.Shol('Please

enter

^productname",

"Error",

MessageBoxButtons . OX, lhssage8oxlcan . Err.or) ; txtProductllae . Focus ⁽₎

; return;

) if

(crbCategory,Text ==

")

{

f,lessageBox.Shor(-Please

select category", "Error",

l,lessageBoxButtons.oK, ItiessageBoxlcon . E

rror)

cmbCategory. Focus O ;

return;

Coryrutinzd Sa 6s And lnuertorlr

return;

if )

(cmbSuPPlier.Text ==

"")

{

MessageBox.

Shu('Please select Supplier", "Error",

HessageBoxButtons. OK, MessageBoxlcon. E

rror)

cmbSupplier. FocusO;

return;

coo =

nff

SqlConnection(cs.DBConn);

cm.openO;

string ct ₌

^-SELECTProductName FRO,I T_PR@UCT urhere Productl{ame='

"

txtProductllae.Text +''';

cd ₌

neu SqlConmand(ct);

cpd.Connection

=

^con;

rdr

₌rmd.ExecuteReadero;

if

(rdr.Read())

{

MessageBox.Show("Product Name Already

Exists", "Error",

llessageBoxButtons . OK, MessageBoxf con . E rror ) ; txtProductName.Text

= "";

txtProductName. Focus _{( )};

if

{

] return;

)

auto(

);

con = ^newSqlConnection(cs.DBConn);

con.open(

);

string

=

"INSERT INTO

T_PRODUCT(ProductfD, Productilame, CategoryID, SubCategorylDr SupplierlD, ^Featunes,ProductEntry Date,InagerStatus) VALUES

("'+

txtProductlD.Text

r ''r"'+

txtProductName.Text

* "'r" *

txtCategorylD.Text

* "r" *

txtSubCategorylD.Text

* o,''

⁺

txtsupplierlD.Text.TrimO

⁺

'

^'_,€d1,' "+DateTime. Now. Date. To5tring( )+" ^',@2r7)"

i

cmd = new SqlComnand(cb);

cmd.Connection

=

^coni

cad . Parameters . Addt'lithValue ( "@d1

", txt

^Features ^.^Text) ; HeiloryStream ms

=

new HemoryStneamO;

Bitnap bmplmage

=

^newBitmap(plctureBoxl.Image);

brplrage.Save(ns, System.Drawing. fmaging. fnageFormat. Jpeg) ;

byte[]

_{data =}ms.GetBuffenO;

SqlParareter _P

= nel SqlParaaeter('ed2',

SqlDbType.I;age);

p.Value = datai

nd.p3pafers.Add(p);

d.ErecutetreaderO;

cm.LloseO;

lhssageSor

Stu('Successfully saved-,'Record-,

lGssageBoxButtons . OK,

MessageBoxlcon .

Inforratim

₎

; turtocapleteO;

btn5ave.Enabled =

false;

)

cat€h (Exception ex)

t

l,lessageBox. Shor(ex.

ilessage,' Error',

l4essageBoxButtons. OK, MessageBoxlcon. ErPor) ;

)

) try {

((rdr t=

nuLL)) rdr. Close(

);

Comf u tnzd Sa rts A nd twn tory

if

(MessageBox.Show("Do you

really xant to delete this recordi",

"Confirmation",

MessageBoxButtons.YesNo, lGssageBoxlcon. Question) ==

System .lrlindows . Foms . DialogResult ^.Yes )

{

delete_records(

);

l )

' private void

delete_recordso

{

+ ...;

int RrsAffected

₌^g;

€on =

neI

SqlConnection(cs.DB€onn)i con.OpenO;

string

=

^'DELETEFROM T_PRODUCT WHERE productlD="' + txtProductlD.Text cnd = ^neuSqlComrand(cq);

cmd.Csnnection

-

^con;

RusAffected

=

cnd.ExecuteilonQuery0;

if

(RowsAffected > 0)

{

MessageBox.Show("Successfully

deleted"r

"Record", llessageBoxButtons . OK, MessageBoxf con. In'formation ₎;

ResetO;

Autocomplete(

);

else

) {

MessageBox. Show( "No Record "found",

"Sorry",

l{essageBoxButtons.fi, }lessageBoxlcon . Information ₎;

ResetO;

AutocompleteO;

) if

(con.State == ConnectionState.Open)

t

con. CloseO;

)

) catch

(Exception ex)

t

liessageBox. Sho*( er.

llessage,' Eppor',

lhssagsSoGrttms

-fi ,

thssageBoxlcon. Error) ;

) )

private void ArtocoTleteo

t tqr

{ cdr = lE Sqfcf,rEstifil(cs.Ern);

cm.OpcnO;

SqlCEd d

₌

tE

SqIC0Ed('SELECT

distinct

Producttlame FROM

T_PROD||CT', con);

DataSet ds =

rE Dat6ct0;

SqfDataMryter da =

rx

SqUfatafdapter(crd);

da.Fill(ds, 'ffirt');

AutoCorpleteStringCollectlon Gol

=

^n€rAuto(ompleteStringCollectlon ⁽₎;

inti=6;

for (i

= O;

i

<= ds.Tables[O].Rus.Count

- 1;

i++)

{

col.Md (ds.Tables[o] . Rous[1] ['productname" ] .ToStrine( )

);

try

{

Corryrutiizdsafi"s fln{ ^lrwmtoryr

] catch

(Exception ex)

{ llessageBox.Show(ex.tlessage,'Error", MessageBoxButtons.OK, I'iessageBoxlcon.

Eror)

l )

private void

btnUpdate_Click(object sender, EventArgs e)

{ if

(txtProductilane.Text ₌₌^oo)

{

llessageBox.Sho,tr("Please

enter

product name",

"Error",

tles sageBordutton s -

O(,

ilessageBoxl con . E rror ₎; trGProductllare. Foc us ( ₎; retuPn;

if )

(cabCategorY.Text ==

"*)

{

l,lessageBox.Shoul("Please

select category"r "Error",

MessageBoxButtons.il, HessageBoxlcon. Error) ;

cmbCategory. FocusO;

return;

) if

(cmbSubCategorY.Text ==

"")

{

MessageBox.show("Please

select

sub

category", "Error',

l4essageBoxButtons . OK, ^MessageBoxlcon . E

rror)

;

cmbSubCategory. Focus( ₎;

return;

if )

(cmbSuPPlier.Text ==

"")

t

MessageBox.Show("Please

select Suppller','Emor',

kssaEeBo)Outtons.0(, MessageBoxlcon. Emor) ;

cmbSupplier. Focus (

);

return;

con

=

nes SqlConnection(cs.lEfonn);

con.@enO;

string

=

^'UPDATET_PflfinCT

set Prod{rctilc''

+ ffiPrcductilaee.Text

'',Categoryllts'

txtcategorylD.Text + ',SubGategoryllt'

ffiubCategoryID.Text

⁺

',Supplierlf "+txtSupplierlD. Text+'',

Features=fdl,

Iegefl IErc MuctIIts' -

⁺

ffiProdrctlD.Tert + ''';

r-l

₌

ner Sqtcrard(cb);

d.Csnectisr ₌

cqr;

d

Par-ters-ldfliUrflal,:('$n', ftFGrtrlres.Text)

;

lhryftr€n

= rEr ,ffitrer0;

Bifap bTIrye ₌ rEl B:ir?(pictrffixl.Lage);

hTr:.

- SaG

(rs,

Slrstet -

fadig. rryi

^ng.IrageForrat ^.I peg ₎;

EetI

data =

r.€ctLrFfr0;

SqLParGr

= rE 5{fP1r2'16j('0d2',

SqlllbType.lage);

p.Value = data;

crd. Parreters.Add(p)

;

cnd. ExecuteRea&rO;

con.CloseO;

tilessageBor.Stra('Successfully

updated',

"Record", l.,tessageBoxButtons.OK, MessageBoxlcon. f nfonaation) ;

Autocorplete(

);

btnUpdate.Enabled =

false;

I

aa+ti lEvtca+iaa avt

)

Dalam dokumen Computerized Sales und Inventory Management System (Halaman 54-58)

For Product Entrv

{ public partial class

:

t

rdr

nulli

dtable

nulli

= nullj

dt =

=

public

-

private void ) autoo

= -P-' + Cettlniqe(ey(6);

public ) static string Geflhique(ey(irrt u.{irg)

char[]

lm

=' t2y56'r89'.fdrrlrrey0;

byte[]

= ne Se[l];

crypto

ns

&thrZeruBytes

;

= tE btrte[E!6ize];

StringBuilder r-sult = ll€r

b in

{

X

);

return ) result.TostringO

private l void

{

falsej

);

);

) public void

string ct =

order

=

try t

)

);

/ select supplier

/

=

);

string

=

=

rdr =

while

{ txtSupplierlD.Text = rdr[9].ToStringO.TrimO;

)

);

catch )

{

Error",

-fi ,

) )

private void

= "";

= "';

= "!

= ";

pictureBoxl.Irage = Pr"operties.lesarces.

fafsci hr0elete.Enabled

false;

falsc;

trr:;

ffioductn-.focusO;

l

prlvate Etu @Cl,'ct(6rcct

{ nescto;

)

private void @Cl-ict(object

t if (ffiPro*rctlE.Text : -')

{

enter

dt ₌

StringBuilder r-sult ₌ ll€r

rdr ₌

string ct ₌

cd ₌