Описание тега textchanged

Definition:

The TextChanged event is an event that occurs when the text or content of a UI element has changed.

Most of the time this will be the text/content of a textbox. In general this event is not bound to a specific language or framework. The event can be captured in.NET, JAVA, JavaScript,...

Examples:

• .NET

  • WindowsForms

    TextBox _nameTextBox = new TextBox();
    _nameTextBox.TextChanged += new EventHandler(NameTextBox_TextChanged);
    
    private void NameTextBox_TextChanged(object sender, EventArgs e)
    {
        //Handle event
    }
    

  • WPF

    <TextBox TextChanged="MyTextBox_TextChanged">Default text</TextBox>
    
    private void MyTextBox_TextChanged(object sender, TextChangedEventArgs args)
    {
        //Handle event
    }
    

• JAVA

  JTextField nameTextField = new JTextField();
  
  nameTextField .getDocument().addDocumentListener(new DocumentListener() {
  
      public void removeUpdate(DocumentEvent e) {
      }
  
      public void insertUpdate(DocumentEvent e) {
      }
  
      public void changedUpdate(DocumentEvent e) {
      }
  }); 
  

• HTML/JavaScript

  <input type="text" id="name" onchange="nameChanged()">
  
  function nameChanged() {
      var name = document.getElementById("name");
      //Handle event
  }
  

More reading:

• WindowsForms
• WPF
• HTML/JavaScript