title: HOw to set default value in text box VB+
body: <p>I am working On VB and Arduino At same time. My main intention is to get data serially displayed on Textbox of VB</p>
  
  <p>Now i wanted to how can assign string or Serial data out put to textbox. 
  I have google it but the sytax is not working
  I created simple textbox AND  assigned variable abcd , Now i wanted to display Abcd on text box.</p>
  
  <pre><code>Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
  
          TextBox1.Text = "ABCD"
      End Sub
  </code></pre>
  
  <p>If i wanted to read serial data display it on textbox</p>
  
  <pre><code>Private Sub Current_Read_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
          SerialPort1.Open()
          Dim str As String
          str = SerialPort1.ReadExisting
          Current_Read.Text = str
          SerialPort1.Close()
      End Sub
  </code></pre>
  
  <p>So why it not working</p>