BUG: Data Binding Expression in the Style Attribute Is Deleted When You Switch from Design View to Source View in HTML (822320)

WORKAROUND

1. Start Microsoft Visual Studio .NET.
2. Use Microsoft Visual Basic .NET or Microsoft Visual C# .NET to create a new ASP.NET Web Application project. By default, WebForm1.aspx is created.
3. Add a TextBox ASP.NET server control to WebForm1.aspx, and then name the control TextBox1.
4. Add two Button ASP.NET server controls to WebForm1.aspx.
5. Right-click WebForm1.aspx, and then click View Code.
6. Add the following sample code in the button click events to display and hide TextBox1:
   
   Visual Basic .NET Sample Code

     Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
         ' To hide the text box
         TextBox1.Style("Display") = "none"
      End Sub
   
      Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
         ' To display the text box
         TextBox1.Style("Display") = "block"
      End Sub

   Visual C# .NET Sample Code

    private void Button1_Click(object sender, System.EventArgs e)
         { // To hide the text box
            TextBox1.Style.Add("Display","none");      
         }
   
         private void Button2_Click(object sender, System.EventArgs e)
         { // To display the text box
            TextBox1.Style.Add("Display","block");      
         }

   Note You can also assign the values in the codebehind file to other style attributes.
7. On the Debug menu, click Start to run the application.
8. Click Button1.
   
   Notice that TextBox1 is hidden.
9. Click Button2.
   
   Notice that TextBox1 is visible.