TextBox 類別

提供允許使用者輸入文字的文字架構控制項。

public class System.Web.UI.MobileControls.TextBox : 
   System.Web.UI.MobileControls.TextControl, 
   System.Web.UI.IPostBackDataHandler

備註

TextBox 控制項只允許單行文字的輸入。這個控制項同時實作 IPostBackDataHandler 介面；其可以接受輸入然後產生回傳。然而伴隨使用 WML 的裝置，輸入的資料也許不會回傳至伺服器。

當使用者在文字方塊中輸入數值時，該數值會儲存在 Text 屬性中，其繼承自 TextControl 基底類別 (Base Class)。

範例

本範例示範如何設定 TextBox 控制項的一些屬性。

<%@ Page Inherits="System.Web.UI.MobileControls.MobilePage" 
   Language="VB" %>
<%@ Register TagPrefix="mobile"
    Namespace="System.Web.UI.MobileControls"
    Assembly="System.Web.Mobile" %>

<script language="vb" runat="server">
Sub Page_Load(sender As Object, e As EventArgs)
   ' Provide the default setting.
   Label1.Text = "TextBox Unchanged"

   ' Dynamically set attributes of the TextBox.
   TextBox1.Alignment = Alignment.Center
   TextBox1.MaxLength = 5
   TextBox1.Password = True
End Sub

Sub AlertUser(sender As Object, e As EventArgs)
   Label1.Text = "TextBox Changed"
End Sub
</script>

<mobile:Form id="Form1" runat="server">
   <mobile:Label runat="server" id="Label1" Alignment="center" />
   <mobile:TextBox runat="server" id="TextBox1" 
      OnTextChanged="AlertUser" />
   <mobile:Command runat="server" Text="Submit" 
      Alignment="center" />
</mobile:Form>
[C#]
<%@ Page Inherits="System.Web.UI.MobileControls.MobilePage" 
   Language="c#" %>
<%@ Register TagPrefix="mobile"
    Namespace="System.Web.UI.MobileControls"
    Assembly="System.Web.Mobile" %>

<script language="c#" runat="server">
void Page_Load(object sender, EventArgs e)
{
   // Provide the default setting.
   Label1.Text = "TextBox Unchanged";

   // Dynamically set attributes of the TextBox.
   TextBox1.Alignment = Alignment.Center;
   TextBox1.MaxLength = 5;
   TextBox1.Password = true;
}

void AlertUser(Object sender, EventArgs e)
{
   Label1.Text = "TextBox Changed";
}
</script>

<mobile:Form id="Form1" runat="server">
   <mobile:Label runat="server" id="Label1" Alignment="center" />
   <mobile:TextBox runat="server" id="TextBox1" 
      OnTextChanged="AlertUser" />
   <mobile:Command runat="server" Text="Submit" 
      Alignment="center" />
</mobile:Form>

需求

命名空間：System.Web.UI.MobileControls

**組件：**System.Web.Mobile

請參閱

TextBox 控制項 | 自訂屬性