ASP.NET Mobile CustomValidator Control[转]

Definition and Usage
定义和用法

The CustomValidator control allows you to write a method to handle the validation of the value entered.
CustomValidator空间允许你书写一个用于验证输入值有效性的方法。

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Properties
属性

Property 属性	Value 值	Description 描述
Alignment	left center right	Optional. How to align the control 可选参数。指定控件的排列方式
BackColor	rgb(x,x,x) #xxxxxx colorname	Optional. A background color for the control 可选参数。指定控件的背景颜色
ControlToValidate	id_of_target_control	Optional. The id of the control to validate 可选参数。指定参与验证的控件id
Display	None Static Dynamic	Optional. The display behavior for the validation control. Legal values are: 可选参数。指定确认控件的显示方式。合法值如下： None (the control is not displayed. Used to show the error message only in the ValidationSummary control) 无效果。（控件不显示。仅显示ValidationSummary 控件的错误信息） Static (the control displays an error message if validation fails. Space is reserved on the page for the message even if the input passes validation 静态效果（如果验证失败，则控件显示错误信息。如果输入控件有效，也会为信息保留页面空间） Dynamic (the control displays an error message if validation fails. Space is not reserved on the page for the message if the input passes validation 动态效果（如果验证失败，则控件显示错误信息。即使输入控件有效，也不会为信息保留页面空间） Dynamic is default 默认为动态样式
ErrorMessage	errortext_for_summary	Optional. The text to display in the ValidationSummary control when validation fails 可选参数。当验证失败时，将在ValidationSummary 控件中显示文本信息
ForeColor	rgb(x,x,x) #xxxxxx colorname	Optional. A foreground color for the control 可选参数。指定控件的前景色
Font-Bold	false true	Optional. Specifies whether or not the text in the control should be bold 可选参数。指定控件中的文本字体是否以粗体显示
Font-Italic	false true	Optional. Specifies whether or not the text in the control should be italic 可选参数。指定控件中的文本字体是否以斜体显示
Font-Name	fontname	Optional. Specifies the font name of the text in the control 可选参数。指定空间中的文本字体名称
Font-Size	normal small large	Optional. Specifies the font size of the text in the control 可选参数。指定空间中的文本字体尺寸
id	unique_name	Optional. A unique id for the control 可选参数。为空间指定一个独立的id
OnServerValidate	function_name	Optional. Specifies the name of the server-side validation script function to be executed 可选参数。指定需要执行的服务器端验证脚本名称
runat	"server"	Required. Specifies that the control is a server control 必要参数。指定该控件为服务器控件
StyleReference	name_of_style_element	Optional. Specifies a reference to a style to be applied to the control 可选参数。指定一个应用于控件的样式参数
Text	errortext	Optional. The message to display when validation fails 可选参数。当验证失败时，指定显示的信息
Wrapping	wrap nowrap	Optional. Specifies whether or not the text in the control should wrap 可选参数。指定控件中的文本是否允许被嵌套

Example 1
案例1

The following example contains two forms in an .aspx file. The first form has a label with the text "Please enter a username", an input box to input a username, a CustomValidator control that checks that the input value is between 8 and 16 characters, and a submit button. The second page is activated by the submit button on the first page, and displays a response. If the input value validates as an

error, an error message is displayed:
下面这个案例包含了 .aspx 文件中的两张表单。第一张表单包含一个名为“Please enter a username” 的标签，一个用户名输入框，一个用于确认8-16位字符输入值的CustomValidator 控件，以及一个提交按钮。第二张页面将被第一张页面中的啼叫按钮激活。如果输入值确认出现错误，那么将显示一段错误信息：

 

<%@ Page 

            Inherits="System.Web.UI.MobileControls.MobilePage"%>

            <%@ Register TagPrefix="Mobile"

            Namespace="System.Web.UI.MobileControls"

            Assembly="System.Web.Mobile" %>

<script runat="server">

            Sub Page2(Sender as Object,E as EventArgs)

            If Page.IsValid Then

            ActiveForm=f2

            txt2.Text="Your username is: " & txt1.text

            end if

            End Sub

Sub user(source As object,args As ServerValidateEventArgs)

            if len(args.Value)<8 or len(args.Value)>16 then

            args.IsValid=false

            else

            args.IsValid=true

            end if

            End Sub

            </script>

<Mobile:Form id="f1" runat="server">

  <Mobile:Label runat="server">

            Please enter a username

            </Mobile:Label>

  <Mobile:TextBox id="txt1" runat="server" />

  <Mobile:CustomValidator runat="server"

            ControlToValidate="txt1"

            OnServerValidate="user"

            Text="A username must be between 8 and 16 characters!" />

            

            <Mobile:Command OnClick="Page2" runat="server">

            Submit</Mobile:Command>

</Mobile:Form>

<Mobile:Form id="f2" runat="server">

            

            <Mobile:Label id="txt2" runat="server" />

            </Mobile:Form>