HtmlTextArea 构造函数

定义

初始化 HtmlTextArea 类的新实例。Initializes a new instance of the HtmlTextArea class.

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

示例

下面的代码示例演示如何创建控件的实例 HtmlTextArea 并将其放置在网页上。The following code example demonstrates how to create an instance of an HtmlTextArea control and place on the Web page.

<%@ 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">
<script runat="server" >
  
  void Page_Load(Object sender, EventArgs e)
  {

    // Create an HtmlTextArea control.
    HtmlTextArea area = new HtmlTextArea();
    area.ID = "TextArea1";
    area.Value = "Enter text here.";
    area.Cols = 20;
    area.Rows = 5;

    // Add the control to the Controls collection of the 
    // PlaceHolder control.
    Place.Controls.Clear();
    Place.Controls.Add(area);

  }
  
</script>

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

   <form id="form1" runat="server">
  
      <h3>HtmlTextArea Constructor Example</h3> 
  
      <asp:PlaceHolder id="Place" 
                       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">
<script runat="server" >
  
  Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)

    ' Create an HtmlTextArea control.
    Dim area As HtmlTextArea = New HtmlTextArea()
    area.ID = "TextArea1"
    area.Value = "Enter text here."
    area.Cols = 20
    area.Rows = 5
 
    ' Add the control to the Controls collection of the 
    ' PlaceHolder control.
    Place.Controls.Clear()
    Place.Controls.Add(area)
         
  End Sub
  
</script>

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

   <form id="form1" runat="server">
  
      <h3>HtmlTextArea Constructor Example</h3> 
  
      <asp:PlaceHolder id="Place" 
                       runat="server"/>
  
   </form>

</body>
</html>

注解

使用此构造函数创建并初始化类的新实例 HtmlTextAreaUse this constructor to create and initialize a new instance of the HtmlTextArea class.

下表显示了实例的初始属性值 HtmlTextAreaThe following table shows initial property values for an instance of HtmlTextArea.

PropertyProperty 初始值Initial Value
TagName "Textarea" 文本字符串。The "textarea" literal string.

适用于