HtmlInputPassword 建構函式

定義

命名空間:
System.Web.UI.HtmlControls
組件:
System.Web.dll

使用預設值初始化該類別的新實例 HtmlInputPassword 。

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

範例

以下程式碼範例示範如何利用預設構造器在網頁表單頁面中程式化地新增 HtmlInputText、、 HtmlInputPassword和 HtmlInputSubmit 控制項，建立簡單的登入畫面。

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

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
  
  protected void page_load(object sender, EventArgs e)
  {
    if (IsPostBack)
    {
      // Add code to process the Login.
    }
  }

  protected void Page_Init(object sender, EventArgs e)
  {
    HtmlInputText userText = new HtmlInputText();
    userText.MaxLength = 20;
    Placeholder1.Controls.Add(userText);

    HtmlInputPassword passwordText = new HtmlInputPassword();
    passwordText.MaxLength = 20;
    Placeholder2.Controls.Add(passwordText);

    HtmlInputSubmit submitButton = new HtmlInputSubmit();
    submitButton.Value = "Submit";
    Placeholder3.Controls.Add(submitButton);
  }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">

      <table cellpadding="2">
        <tr>
        <td>User Name
            <asp:placeholder
                runat="server"
                id="Placeholder1" />
        </td></tr>
        <tr>
        <td>Password
            <asp:placeholder
                runat="server"
                id="Placeholder2" />
        </td></tr>
        <tr><td><asp:placeholder
                runat="server"
                id="Placeholder3" />
        </td></tr>
      </table>
    </form>
  </body>
</html>

<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

  Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
    
    If (IsPostBack) Then
      ' Add code to process the Login.
    End If

  End Sub

  Protected Sub Page_Init(ByVal sender As Object, ByVal e As System.EventArgs)
    
    Dim userText As HtmlInputText = New HtmlInputText
    userText.MaxLength = 20
    Placeholder1.Controls.Add(userText)

    Dim passwordText As HtmlInputPassword = New HtmlInputPassword
    passwordText.MaxLength = 20
    Placeholder2.Controls.Add(passwordText)

    Dim submitButton As HtmlInputSubmit = New HtmlInputSubmit
    submitButton.Value = "Submit"
    Placeholder3.Controls.Add(submitButton)

  End Sub
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
  <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
    <form id="Form1" runat="server">

      <table cellpadding="2">
        <tr>
        <td>User Name
            <asp:placeholder
                runat="server"
                id="Placeholder1" />
        </td></tr>
        <tr>
        <td>Password
            <asp:placeholder
                runat="server"
                id="Placeholder2" />
        </td></tr>
        <tr><td><asp:placeholder
                runat="server"
                id="Placeholder3" />
        </td></tr>
      </table>
    </form>
  </body>
</html>

備註

使用此建構器以預設值建立並初始化新的控制項實例 HtmlInputPassword 。 它會建立一個 password 文字框的類型控制。

下表顯示了 的 HtmlInputPassword初始屬性值。

房產 初始值
Type 就是「password」字串。

適用於