通过

HtmlGenericControl 构造函数

  • 参考

定义

命名空间:
System.Web.UI.HtmlControls
程序集:
System.Web.dll

初始化 HtmlGenericControl 类的新实例。

重载

HtmlGenericControl()

使用默认值初始化 HtmlGenericControl 类的新实例。
HtmlGenericControl(String)

使用指定的标记初始化 HtmlGenericControl 类的新实例。

HtmlGenericControl()

使用默认值初始化 HtmlGenericControl 类的新实例。

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

示例

下面的代码示例演示如何使用无参数构造函数创建 类的新实例 HtmlGenericControl 。

<%@ 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">
  void Page_Load(Object sender, EventArgs e)
  {

    // Create a new HtmlGenericControl.
    HtmlGenericControl NewControl = new HtmlGenericControl();

    // Set the properties of the new HtmlGenericControl control.
    NewControl.ID = "NewControl";
    NewControl.InnerHtml = "This is a dynamically created HTML server control.";

    // Add the new HtmlGenericControl to the Controls collection of the
    // PlaceHolder control. 
    ControlContainer.Controls.Add(NewControl);

  }

</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
  <title>HtmlGenericControl Constructor Example</title>
</head>
<body>

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

      <h3> HtmlGenericControl Constructor Example </h3>

      <asp:PlaceHolder ID="ControlContainer"
                       runat="server"/>
   </div>
   </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">
  Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)

    ' Create a new HtmlGenericControl.
    Dim NewControl As New HtmlGenericControl()

    ' Set the properties of the new HtmlGenericControl control.
    NewControl.ID = "NewControl"
    NewControl.InnerHtml = "This is a dynamically created HTML server control."

    ' Add the new HtmlGenericControl to the Controls collection of the
    ' PlaceHolder control. 
    ControlContainer.Controls.Add(NewControl)

  End Sub

</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
  <title>HtmlGenericControl Constructor Example</title>
</head>
<body>

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

      <h3> HtmlGenericControl Constructor Example </h3>

      <asp:PlaceHolder ID="ControlContainer"
                       runat="server"/>
   </div>
   </form>

</body>
</html>

注解

使用此构造函数使用默认值创建和初始化 类的新实例 HtmlGenericControl 。 它通常用于动态创建服务器端 <span> 元素。

下表显示了 实例 HtmlGenericControl的初始属性值。

属性 初始值
TagName “span”文本字符串。

适用于

HtmlGenericControl(String)

使用指定的标记初始化 HtmlGenericControl 类的新实例。

public:
 HtmlGenericControl(System::String ^ tag);
public HtmlGenericControl (string tag);
new System.Web.UI.HtmlControls.HtmlGenericControl : string -> System.Web.UI.HtmlControls.HtmlGenericControl
Public Sub New (tag As String)

参数

tag
String

要为其创建该类的此实例的元素的名称。

示例

下面的代码示例演示如何使用重载构造 HtmlGenericControl 函数创建 类的新实例。

<%@ 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">
  
  void Page_Load(Object sender, EventArgs e)
  {
    // Create a new HtmlGenericControl.
    HtmlGenericControl NewControl = new HtmlGenericControl("div");

    // Set the properties of the new HtmlGenericControl control.
    NewControl.ID = "NewControl";
    NewControl.InnerHtml = "This is a dynamically created HTML server control.";

    // Add the new HtmlGenericControl to the Controls collection of the
    // PlaceHolder control. 
    ControlContainer.Controls.Add(NewControl);

  }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
  <title>HtmlGenericControl Constructor Example</title>
</head>
<body>

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

      <h3> HtmlGenericControl Constructor Example </h3>

      <asp:PlaceHolder ID="ControlContainer"
                       runat="server"/>
   </div>
   </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">

  Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)

    ' Create a new HtmlGenericControl.
    Dim NewControl As New HtmlGenericControl("div")

    ' Set the properties of the new HtmlGenericControl control.
    NewControl.ID = "NewControl"
    NewControl.InnerHtml = "This is a dynamically created HTML server control."

    ' Add the new HtmlGenericControl to the Controls collection of the
    ' PlaceHolder control. 
    ControlContainer.Controls.Add(NewControl)

  End Sub

</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
  <title>HtmlGenericControl Constructor Example</title>
</head>
<body>

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

      <h3> HtmlGenericControl Constructor Example </h3>

      <asp:PlaceHolder ID="ControlContainer"
                       runat="server"/>
   </div>
   </form>

</body>
</html>

注解

使用此构造函数使用指定的标记创建和初始化 类的新实例 HtmlGenericControl 。 这使你可以动态创建任何不直接由 .NET Framework 类表示的 HTML 服务器控件元素。

下表显示了 实例 HtmlGenericControl的初始属性值。

属性 初始值
TagName tag 参数的值。

注意

tag如果 参数为 null，则 TagName 属性设置为 String.Empty。

适用于