[Sommaire] [Imprimer]

   1  <?php
   2  
   3  class Sample2 extends TPage
   4  {
   5      private $_data=null;
   6  
   7  	protected function getData()
   8      {
   9          if($this->_data===null)
  10              $this->loadData();
  11          return $this->_data;
  12      }
  13  
  14  	protected function loadData()
  15      {
  16          // We use viewstate keep track of data.
  17          // In real applications, data should come from database using an SQL SELECT statement.
  18          // In the following tabular data, field 'id' is the primary key.
  19          // All update and delete operations should come with an 'id' value in order to go through.
  20          if(($this->_data=$this->getViewState('Data',null))===null)
  21          {
  22              $this->_data=array(
  23                  array('id'=>'ITN001','name'=>'Motherboard','quantity'=>1,'price'=>100.00,'imported'=>true),
  24                  array('id'=>'ITN002','name'=>'CPU','quantity'=>1,'price'=>150.00,'imported'=>true),
  25                  array('id'=>'ITN003','name'=>'Harddrive','quantity'=>2,'price'=>80.00,'imported'=>false),
  26                  array('id'=>'ITN004','name'=>'Sound card','quantity'=>1,'price'=>40.00,'imported'=>false),
  27                  array('id'=>'ITN005','name'=>'Video card','quantity'=>1,'price'=>150.00,'imported'=>true),
  28                  array('id'=>'ITN006','name'=>'Keyboard','quantity'=>1,'price'=>20.00,'imported'=>true),
  29                  array('id'=>'ITN007','name'=>'Monitor','quantity'=>2,'price'=>300.00,'imported'=>false),
  30              );
  31              $this->saveData();
  32          }
  33      }
  34  
  35  	protected function saveData()
  36      {
  37          $this->setViewState('Data',$this->_data);
  38      }
  39  
  40  	protected function updateProduct($id,$name,$quantity,$price,$imported)
  41      {
  42          // In real applications, data should be saved to database using an SQL UPDATE statement
  43          if($this->_data===null)
  44              $this->loadData();
  45          $updateRow=null;
  46          foreach($this->_data as $index=>$row)
  47              if($row['id']===$id)
  48                  $updateRow=&$this->_data[$index];
  49          if($updateRow!==null)
  50          {
  51              $updateRow['name']=$name;
  52              $updateRow['quantity']=TPropertyValue::ensureInteger($quantity);
  53              $updateRow['price']=TPropertyValue::ensureFloat($price);
  54              $updateRow['imported']=TPropertyValue::ensureBoolean($imported);
  55              $this->saveData();
  56          }
  57      }
  58  
  59  	protected function deleteProduct($id)
  60      {
  61          // In real applications, data should be saved to database using an SQL DELETE statement
  62          if($this->_data===null)
  63              $this->loadData();
  64          $deleteIndex=-1;
  65          foreach($this->_data as $index=>$row)
  66              if($row['id']===$id)
  67                  $deleteIndex=$index;
  68          if($deleteIndex>=0)
  69          {
  70              unset($this->_data[$deleteIndex]);
  71              $this->saveData();
  72          }
  73      }
  74  
  75  	public function onLoad($param)
  76      {
  77          parent::onLoad($param);
  78          if(!$this->IsPostBack)
  79          {
  80              $this->DataList->DataSource=$this->Data;
  81              $this->DataList->dataBind();
  82          }
  83      }
  84  
  85  	public function editItem($sender,$param)
  86      {
  87          $this->DataList->SelectedItemIndex=-1;
  88          $this->DataList->EditItemIndex=$param->Item->ItemIndex;
  89          $this->DataList->DataSource=$this->Data;
  90          $this->DataList->dataBind();
  91      }
  92  
  93  	public function cancelItem($sender,$param)
  94      {
  95          $this->DataList->SelectedItemIndex=-1;
  96          $this->DataList->EditItemIndex=-1;
  97          $this->DataList->DataSource=$this->Data;
  98          $this->DataList->dataBind();
  99      }
 100  
 101  	public function updateItem($sender,$param)
 102      {
 103          $item=$param->Item;
 104          $this->updateProduct(
 105              $this->DataList->DataKeys[$item->ItemIndex],
 106              $item->ProductName->Text,
 107              $item->ProductQuantity->Text,
 108              $item->ProductPrice->Text,
 109              $item->ProductImported->Checked);
 110          $this->DataList->EditItemIndex=-1;
 111          $this->DataList->DataSource=$this->Data;
 112          $this->DataList->dataBind();
 113      }
 114  
 115  	public function deleteItem($sender,$param)
 116      {
 117          $this->deleteProduct($this->DataList->DataKeys[$param->Item->ItemIndex]);
 118          $this->DataList->SelectedItemIndex=-1;
 119          $this->DataList->EditItemIndex=-1;
 120          $this->DataList->DataSource=$this->Data;
 121          $this->DataList->dataBind();
 122      }
 123  
 124  	public function selectItem($sender,$param)
 125      {
 126          $this->DataList->EditItemIndex=-1;
 127          $this->DataList->DataSource=$this->Data;
 128          $this->DataList->dataBind();
 129      }
 130  }
 131  
 132  ?>