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HtmlInputCheckBox Constructeur

  • Référence

Définition

Espace de noms:
System.Web.UI.HtmlControls
Assembly:
System.Web.dll

Initialise une nouvelle instance de la classe HtmlInputCheckBox.

public:
 HtmlInputCheckBox();
public HtmlInputCheckBox ();
Public Sub New ()

Exemples

L’exemple de code suivant montre comment créer et initialiser une nouvelle instance de la HtmlInputCheckBox classe.

<%@ Page Language="C#" AutoEventWireup="True" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>HtmlInputCheckBox Constructor Sample</title>
<script language="C#" runat="server">
       
       
       // Create a new instance of HtmlInputCheckBox.
       HtmlInputCheckBox cb = new HtmlInputCheckBox();

       // Create a new instance of Label.
       Label label = new Label();
       
       // Create a new instance of Button.
       HtmlButton b = new HtmlButton();

       protected void Page_Load(object sender, EventArgs e)
       {
           // Define attributes of Button and Label.
           b.InnerText = "Click";
           label.Text = "checkbox";
           
           // Add controls to placeholder
           Container.Controls.Add(cb);
           Container.Controls.Add(label);
           Container.Controls.Add(new LiteralControl("<br />"));
           Container.Controls.Add(b);
           
           // Add EventHandler
           b.ServerClick += new EventHandler(button_ServerClick);

       }
       
       void button_ServerClick(object sender, EventArgs e)
       {
           switch (cb.Checked)
           {
               case true:
                   Message.InnerHtml = "Checkbox is checked.";
                   break;

               default:
                   Message.InnerHtml = "Checkbox is not checked.";
                   break;
           }
       }
</script>

</head>

<body>

   <h3>HtmlInputCheckBox Constructor Sample</h3>

   <form id="form1" runat="server">

      <asp:PlaceHolder id="Container" runat="server"></asp:PlaceHolder>    
       
      <br />
      <span id="Message" 
            style="color:red" 
            runat="server"/>

   </form>

</body>
</html>

<%@ Page Language="VB" AutoEventWireup="True" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
    <title>HtmlInputCheckBox Constructor Sample</title>
<script language="VB" runat="server">

       ' Create a new instance of HtmlInputCheckBox.
       Dim cb As New HtmlInputCheckBox()

       ' Create a new instance of Label.
       Dim label As New Label()
       
       ' Create a new instance of Button.
       Dim b As New HtmlButton()
       
       Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
           
           ' Define attributes of Button and Label.
           b.InnerText = "Click"
           label.Text = "checkbox"
           
           ' Add controls to placeholder
           Container.Controls.Add(cb)
           Container.Controls.Add(label)
           Container.Controls.Add(New LiteralControl("<br />"))
           Container.Controls.Add(b)
           
           ' Add EventHandler
           AddHandler b.ServerClick, AddressOf button_ServerClick
          
       End Sub
       
       Sub button_ServerClick(ByVal sender As Object, ByVal e As EventArgs)
           Select Case cb.Checked
               Case True
                   Message.InnerHtml = "Checkbox is checked."
        
               Case Else
                   Message.InnerHtml = "Checkbox is not checked."
           End Select

       End Sub

</script>

</head>

<body>

   <h3>HtmlInputCheckBox Constructor Sample</h3>

   <form id="Form1" runat="server">

      <asp:PlaceHolder id="Container" runat="server"></asp:PlaceHolder>    
       
      <br />
      <span id="Message" 
            style="color:red" 
            runat="server"/>

   </form>

</body>
</html>

Remarques

Utilisez ce constructeur pour créer et initialiser une nouvelle instance de la HtmlInputCheckBox classe.

Le tableau suivant montre la valeur de propriété initiale d’une instance de HtmlInputCheckBox.

Propriété Valeur initiale
TagName Chaîne littérale « case à cocher ».

S’applique à