diff --git a/src/Symfony/Component/Form/Form.php b/src/Symfony/Component/Form/Form.php
index 0b9cdcf1bb76..1fc4d4588435 100644
--- a/src/Symfony/Component/Form/Form.php
+++ b/src/Symfony/Component/Form/Form.php
@@ -294,6 +294,20 @@ public function isReadOnly()
         return true;
     }
 
+    /**
+     * Set read only form status
+     *
+     * @param Boolean read only status
+     *
+     * @return Form The current form
+     */
+    public function setReadOnly($readOnly = true)
+    {
+        $this->readOnly = (Boolean) $readOnly;
+
+        return $this;
+    }
+
     /**
      * Sets the parent form.
      *
@@ -370,6 +384,21 @@ public function getAttribute($name)
         return $this->attributes[$name];
     }
 
+    /**
+     * Sets the value of the attributes with the given name.
+     *
+     * @param string $name The name of the attribute
+     * @param mixed $value The value of the attribute
+     *
+     * @return Form The current form
+     */
+    public function setAttribute($name, $value)
+    {
+        $this->attributes[$name] = $value;
+
+        return $this;
+    }
+
     /**
      * Updates the field with default data.
      *
diff --git a/tests/Symfony/Tests/Component/Form/FormTest.php b/tests/Symfony/Tests/Component/Form/FormTest.php
index 4fbf6ff9b7b9..eb4ca3d86ff0 100644
--- a/tests/Symfony/Tests/Component/Form/FormTest.php
+++ b/tests/Symfony/Tests/Component/Form/FormTest.php
@@ -229,6 +229,24 @@ public function testNotReadOnly()
         $this->assertFalse($child->isReadOnly());
     }
 
+    public function testSetReadOnlyAfterFormCreation()
+    {
+        $parent = $this->getBuilder()->setReadOnly(false)->getForm();
+
+        $parent->setReadOnly(true);
+
+        $this->assertTrue($parent->isReadOnly());
+    }
+
+    public function testSetNotReadOnlyAfterFormCreation()
+    {
+        $parent = $this->getBuilder()->setReadOnly(true)->getForm();
+
+        $parent->setReadOnly(false);
+
+        $this->assertFalse($parent->isReadOnly());
+    }
+
     public function testCloneChildren()
     {
         $child = $this->getBuilder('child')->getForm();