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diff --git a/demos/quickstart/protected/pages/Controls/Samples/TDataList/Sample2.php b/demos/quickstart/protected/pages/Controls/Samples/TDataList/Sample2.php
index ccc87498..cc15e27e 100644
--- a/demos/quickstart/protected/pages/Controls/Samples/TDataList/Sample2.php
+++ b/demos/quickstart/protected/pages/Controls/Samples/TDataList/Sample2.php
@@ -2,33 +2,77 @@
class Sample2 extends TPage
{
+ private $_data=null;
+
protected function getData()
+ {
+ if($this->_data===null)
+ $this->loadData();
+ return $this->_data;
+ }
+
+ protected function loadData()
{
// We use viewstate keep track of data.
- // In real applications, data should come from database.
- if(($data=$this->getViewState('Data',null))===null)
+ // In real applications, data should come from database using an SQL SELECT statement.
+ // In the following tabular data, field 'id' is the primary key.
+ // All update and delete operations should come with an 'id' value in order to go through.
+ if(($this->_data=$this->getViewState('Data',null))===null)
{
- $data=array(
- array('id'=>'ITN001','name'=>'Motherboard','quantity'=>1,'price'=>100.00),
- array('id'=>'ITN002','name'=>'CPU','quantity'=>1,'price'=>150.00),
- array('id'=>'ITN003','name'=>'Harddrive','quantity'=>2,'price'=>80.00),
- array('id'=>'ITN004','name'=>'Sound card','quantity'=>1,'price'=>40.00),
- array('id'=>'ITN005','name'=>'Video card','quantity'=>1,'price'=>150.00),
- array('id'=>'ITN006','name'=>'Keyboard','quantity'=>1,'price'=>20.00),
- array('id'=>'ITN007','name'=>'Monitor','quantity'=>2,'price'=>300.00),
+ $this->_data=array(
+ array('id'=>'ITN001','name'=>'Motherboard','quantity'=>1,'price'=>100.00,'imported'=>true),
+ array('id'=>'ITN002','name'=>'CPU','quantity'=>1,'price'=>150.00,'imported'=>true),
+ array('id'=>'ITN003','name'=>'Harddrive','quantity'=>2,'price'=>80.00,'imported'=>false),
+ array('id'=>'ITN004','name'=>'Sound card','quantity'=>1,'price'=>40.00,'imported'=>false),
+ array('id'=>'ITN005','name'=>'Video card','quantity'=>1,'price'=>150.00,'imported'=>true),
+ array('id'=>'ITN006','name'=>'Keyboard','quantity'=>1,'price'=>20.00,'imported'=>true),
+ array('id'=>'ITN007','name'=>'Monitor','quantity'=>2,'price'=>300.00,'imported'=>false),
);
- $this->saveData($data);
+ $this->saveData();
+ }
+ }
+
+ protected function saveData()
+ {
+ $this->setViewState('Data',$this->_data);
+ }
+
+ protected function updateProduct($id,$name,$quantity,$price,$imported)
+ {
+ // In real applications, data should be saved to database using an SQL UPDATE statement
+ if($this->_data===null)
+ $this->loadData();
+ $updateRow=null;
+ foreach($this->_data as $index=>$row)
+ if($row['id']===$id)
+ $updateRow=&$this->_data[$index];
+ if($updateRow!==null)
+ {
+ $updateRow['name']=$name;
+ $updateRow['quantity']=TPropertyValue::ensureInteger($quantity);
+ $updateRow['price']=TPropertyValue::ensureFloat($price);
+ $updateRow['imported']=TPropertyValue::ensureBoolean($imported);
+ $this->saveData();
}
- return $data;
}
- protected function saveData($data)
+ protected function deleteProduct($id)
{
- // In real applications, data should be saved to database.
- $this->setViewState('Data',$data);
+ // In real applications, data should be saved to database using an SQL DELETE statement
+ if($this->_data===null)
+ $this->loadData();
+ $deleteIndex=-1;
+ foreach($this->_data as $index=>$row)
+ if($row['id']===$id)
+ $deleteIndex=$index;
+ if($deleteIndex>=0)
+ {
+ unset($this->_data[$deleteIndex]);
+ $this->saveData();
+ }
}
- function onLoad($param)
+ public function onLoad($param)
{
parent::onLoad($param);
if(!$this->IsPostBack)
@@ -38,14 +82,15 @@ class Sample2 extends TPage
}
}
- function editItem($sender,$param)
+ public function editItem($sender,$param)
{
+ $this->DataList->SelectedItemIndex=-1;
$this->DataList->EditItemIndex=$param->Item->ItemIndex;
$this->DataList->DataSource=$this->Data;
$this->DataList->dataBind();
}
- function cancelItem($sender,$param)
+ public function cancelItem($sender,$param)
{
$this->DataList->SelectedItemIndex=-1;
$this->DataList->EditItemIndex=-1;
@@ -53,33 +98,32 @@ class Sample2 extends TPage
$this->DataList->dataBind();
}
- function updateItem($sender,$param)
+ public function updateItem($sender,$param)
{
$item=$param->Item;
- $data=$this->Data;
- $product=&$data[$item->ItemIndex];
- $product['name']=$item->ProductName->Text;
- $product['price']=TPropertyValue::ensureFloat($item->ProductPrice->Text);
- $product['quantity']=TPropertyValue::ensureInteger($item->ProductQuantity->Text);
- $this->saveData($data);
+ $this->updateProduct(
+ $this->DataList->DataKeys[$item->ItemIndex],
+ $item->ProductName->Text,
+ $item->ProductPrice->Text,
+ $item->ProductQuantity->Text,
+ $item->ProductImported->Checked);
$this->DataList->EditItemIndex=-1;
- $this->DataList->DataSource=$data;
+ $this->DataList->DataSource=$this->Data;
$this->DataList->dataBind();
}
- function deleteItem($sender,$param)
+ public function deleteItem($sender,$param)
{
- $data=$this->Data;
- array_splice($data,$param->Item->ItemIndex,1);
- $this->saveData($data);
+ $this->deleteProduct($this->DataList->DataKeys[$param->Item->ItemIndex]);
$this->DataList->SelectedItemIndex=-1;
$this->DataList->EditItemIndex=-1;
- $this->DataList->DataSource=$data;
+ $this->DataList->DataSource=$this->Data;
$this->DataList->dataBind();
}
- function selectItem($sender,$param)
+ public function selectItem($sender,$param)
{
+ $this->DataList->EditItemIndex=-1;
$this->DataList->DataSource=$this->Data;
$this->DataList->dataBind();
}
diff --git a/framework/Web/UI/WebControls/TDataList.php b/framework/Web/UI/WebControls/TDataList.php
index 95919372..f5292220 100644
--- a/framework/Web/UI/WebControls/TDataList.php
+++ b/framework/Web/UI/WebControls/TDataList.php
@@ -447,7 +447,7 @@ class TDataList extends TBaseDataList implements INamingContainer, IRepeatInfoUs
{
if($this->getDataKeyField()==='')
throw new TInvalidOperationException('datalist_datakeyfield_required');
- $index=$this->getSelectedIndex();
+ $index=$this->getSelectedItemIndex();
$dataKeys=$this->getDataKeys();
if($index>=0 && $index<$dataKeys->getCount())
return $dataKeys->itemAt($index);
--
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