1 files changed, 61 insertions, 0 deletions
diff --git a/framework/Web/UI/WebControls/TExpression.php b/framework/Web/UI/WebControls/TExpression.php
new file mode 100644
index 00000000..6cecf9c4
--- /dev/null
+++ b/framework/Web/UI/WebControls/TExpression.php
@@ -0,0 +1,61 @@
+<?php
+/**
+ * TExpression class file
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.xisc.com/
+ * @copyright Copyright &copy; 2004-2005, Qiang Xue
+ * @license http://www.opensource.org/licenses/bsd-license.php BSD License
+ * @version $Revision: $  $Date: $
+ * @package System.Web.UI.WebControls
+ */
+
+/**
+ * TExpression class
+ *
+ * TExpression evaluates a PHP expression and renders the result.
+ * The expression is evaluated during rendering stage. You can set
+ * it via the property <b>Expression</b>. You should also specify
+ * the context object by <b>Context</b> property which is used as
+ * the object in which the expression is evaluated. If the <b>Context</b>
+ * property is not set, the TExpression component itself will be
+ * assumed as the context.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @version $Revision: $  $Date: $
+ * @package System.Web.UI.WebControls
+ * @since 3.0
+ */
+class TExpression extends TControl
+{
+	private $_e='';
+
+	/**
+	 * @return string the expression to be evaluated
+	 */
+	public function getExpression()
+	{
+		return $this->_e;
+	}
+
+	/**
+	 * Sets the expression of the TExpression
+	 * @param string the expression to be set
+	 */
+	public function setExpression($value)
+	{
+		$this->_e=$value;
+	}
+
+	/**
+	 * Renders the evaluation result of the expression.
+	 * @param THtmlTextWriter the writer used for the rendering purpose
+	 */
+	protected function render($writer)
+	{
+		if($this->_e!=='')
+			$writer->write($this->evaluateExpression($this->_e));
+	}
+}
+
+?>