Hidden fields and ViewState (VB) : HiddenField « ASP.net Controls « ASP.NET Tutorial






  1. ASP.NET Tutorial
  2. ASP.net Controls
  3. HiddenField
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"  "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Hidden Fields and ViewState</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="TextBox1" Runat="server"></asp:TextBox>
        <asp:Button ID="Button1" Runat="server" Text="Button"  />
        <asp:HiddenField ID="HiddenField1" Runat="server" />
    </div>
    </form>
</body>
</html>

File: Default.aspx.vb

<Serializable()> _
Public Class Person
    Public firstName As String
    Public lastName As String
End Class

Partial Class _Default
    Inherits System.Web.UI.Page

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) _
            Handles Me.Load

        If Not Page.IsPostBack Then
            HiddenField1.Value = "foo"
            ViewState("AnotherHiddenValue") = "bar"

            Dim p As New Person
            p.firstName = "Scott"
            p.lastName = "Hanselman"
            ViewState("HiddenPerson") = p
        End If

    End Sub

End Class








3.18.HiddenField
3.18.1.Working with the HiddenField server control (C#)
3.18.2.Working with the HiddenField server control (VB)
3.18.3.Hidden fields and ViewState (C#)
3.18.4.Hidden fields and ViewState (VB)
3.18.5.Use hidden field to pass value