FilteredTextBox控件,该控件用于控制用户的输入值的范围。
实例代码如下所示:

<%...@PageLanguage="C#"AutoEventWireup="true"CodeFile="FilteredTextBoxDemo.aspx.cs"
Inherits="FilteredTextBoxDemo"%>


<%...@RegisterAssembly="System.Web.Extensions,Version=1.0.61025.0,Culture=neutral,
PublicKeyToken=31bf3856ad364e35"
Namespace="System.Web.UI"TagPrefix="asp"%>


<%...@RegisterAssembly="AjaxControlToolkit"Namespace="AjaxControlToolkit"TagPrefix="cc1"%>

<!DOCTYPEhtmlPUBLIC"-//W3C//DTDXHTML1.0Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<htmlxmlns="http://www.w3.org/1999/xhtml">
<headrunat="server">
<title>无标题页</title>
</head>
<body>
<formid="form1"runat="server">
<div>
<asp:ScriptManagerID="ScriptManager1"runat="server">
</asp:ScriptManager>
<tableborder="0">
<tr>
<td>只允许输入数字</td>
<td><asp:TextBoxID="TextBox1"runat="server"/></td>
</tr>
<tr>
<td>只允许输入小写字母:</td>
<td><asp:TextBoxID="TextBox2"runat="server"/></td>
</tr>
<tr>
<td>只允许输入(+,-,*,/,=,.)和数字:</td>
<td><asp:TextBoxID="TextBox3"runat="server"></asp:TextBox></td>
</tr>
</table>
<cc1:FilteredTextBoxExtender
ID="FilteredTextBoxExtender1"
runat="server"
TargetControlID="TextBox1"
FilterType="Numbers"/>

<cc1:FilteredTextBoxExtender
ID="FilteredTextBoxExtender2"
runat="server"
TargetControlID="TextBox2"
FilterType="LowercaseLetters"/>

<cc1:FilteredTextBoxExtender
ID="FilteredTextBoxExtender3"
runat="server"
TargetControlID="TextBox3"
FilterType="Custom,Numbers"
ValidChars="+-=/*()."/>
</div>
</form>
</body>
</html>
实例代码如下所示:


Inherits="FilteredTextBoxDemo"%>



PublicKeyToken=31bf3856ad364e35"






"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">














































