HtmlTextArea.Rows 属性

定义

获取或设置 HtmlTextArea 控件的高度(以字符为单位)。

public:
 property int Rows { int get(); void set(int value); };
public int Rows { get; set; }
member this.Rows : int with get, set
Public Property Rows As Integer

属性值

Int32

HtmlTextArea 控件的高度(以字符为单位)。 默认值为 -1,表示未设置此属性。

示例

下面的代码示例演示如何使用 Rows 属性来控制控件的高度 HtmlTextArea

<%@ 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 SubmitBtn_Click(Object sender, EventArgs e)
  {
    TextArea1.Rows = Convert.ToInt32(Select1.Value);
    Span1.InnerHtml = "You wrote: <br />" + TextArea1.Value;
  }

</script>

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

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

      <h3>HtmlTextArea Example</h3>

      Enter your comments: <br />

      <textarea rows="2" cols="20" id="TextArea1" 
                runat="server"/>

      <br />

      Select row height: <br />

      <select id="Select1" 
              runat="server">

         <option value="1" selected="selected"> 1 </option>
         <option value="2"> 2 </option>
         <option value="3"> 3 </option>
         <option value="4"> 4 </option>
         <option value="5"> 5 </option>
         <option value="6"> 6 </option>

      </select>

      <br /><br />

      <input type="submit"  
             value="Submit" 
             onserverclick="SubmitBtn_Click" 
             runat="server"/>

      <br />

      <span id="Span1" 
            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 SubmitBtn_Click(ByVal sender As Object, ByVal e As EventArgs)
      
    TextArea1.Rows = CInt(Select1.Value)
    Span1.InnerHtml = "You wrote: <br />" + TextArea1.Value
      
  End Sub

</script>

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

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

      <h3>HtmlTextArea Example</h3>

      Enter your comments: <br />

      <textarea rows="2" cols="20" id="TextArea1" 
                runat="server"/>

      <br />

      Select row height: <br />

      <select id="Select1" 
              runat="server">

         <option value="1" selected="selected"> 1 </option>
         <option value="2"> 2 </option>
         <option value="3"> 3 </option>
         <option value="4"> 4 </option>
         <option value="5"> 5 </option>
         <option value="6"> 6 </option>

      </select>

      <br /><br />

      <input type="submit"  
             value="Submit" 
             onserverclick="SubmitBtn_Click" 
             runat="server"/>

      <br />

      <span id="Span1" 
            runat="server" />

   </form>

</body>
</html>

注解

使用 Rows 属性可以指定或确定控件) 字符 (HtmlTextArea 的高度。 如果输入的行数超过指定高度的文本,则启用滚动条。

若要控制控件的宽度,请设置 Cols 属性。

适用于

另请参阅