ASP.NET检验控件的汇总

ASP.NET检验控件的汇总

检验控件执行表单检查

1.RequiredFieldValidator (必填域)

Username:

<asp:TextBox

ID="txtUsername"

Text="Enter Some Text" //初始值

Runat="Server" />

<asp:RequiredFieldValidator

Font-Name="仿宋体" //显示字体

ControlToValidate="txtUsername"

Text="You must enter a username!"

InitialValue="Enter Some Text" //避免和初始值相同

Runat="Server" />

2.RegularExpressionValidator (检验输入的有效性)

Product Code:

<asp:TextBox

id="txtProductCode"

Runat="Server"/>

<asp:RegularExpressionValidator

ControlToValidate="txtProductCode"

Text="Invalid Product Code!"

ValidationExpression="P[0-9]{4}" //P开头+4个数字为有效输入

Runat="Server" />

Email Address:

<asp:TextBox

id="txtEmail"

Columns="50"

Runat="Server"/>

<asp:RegularExpressionValidator

ControlToValidate="txtEmail"

Text="Invalid Email Address!"

ValidationExpression="/S+@/S+/./S{2,3}" //检验Email的有效性

Runat="Server" />

Password:

<asp:TextBox

id="txtPassword"

Columns="30"

Runat="Server"/>

<asp:RegularExpressionValidator

ControlToValidate="txtPassword"

Display="Dynamic"

Text="Your password must contain between 3 and 20 characters!"

ValidationExpression="/w{3,20}" //至少一个字母开头,并且包含一个数字和3-20个字符

Runat="Server" />

<asp:RegularExpressionValidator

ControlToValidate="txtPassword"

Display="Dynamic"

Text="Your password must contain at least one number and letter!"

ValidationExpression="(/w+/d+/w*)|(/w*/d+/w+)"

Runat="Server" />

Phone Number:

<asp:TextBox

id="txtPhone"

Columns="30"

Runat="Server"/>

<asp:RegularExpressionValidator

ControlToValidate="txtPhone"

Display="Dynamic"

Text="Invalid Phone Number!"

ValidationExpression="/(?/s*/d{4}/s*[/)/./-]?/s*/d{4}/s*[/-/.]?/s*/d{4}"

//电话号码的检查,必须为(0754) 290-1314或0754.290.1314或0754 290 1314

Runat="Server" />

Enter the address of your homepage:

<asp:TextBox

id="txtHomepage"

Columns="50"

Runat="Server"/>

<asp:RegularExpressionValidator

ControlToValidate="txtHomepage"

Display="Dynamic"

Text="Invalid URL!"

EnableClientScript="False" //禁用客户端检查

ValidationExpression="(?i:http:///S+/./S+)" //网址的检查

Runat="Server" />

Enter your last name:(no more than 10 characters)

<asp:TextBox

id="txtLastname"

Columns="50"

Runat="Server"/>

<asp:RegularExpressionValidator

ControlToValidate="txtLastname"

Display="Dynamic"

Text="Your last name can contain a maximum of 10 characters and no spaces!"

ValidationExpression="/S{0,10}" //长度检查,不多于10字符

Runat="Server" />

ZIP Code:

<asp:TextBox

id="txtZipCode"

Columns="8"

Runat="Server"/>

<asp:RegularExpressionValidator

ControlToValidate="txtZipCode"

Display="Dynamic"

Text="Invalid ZIP Code!"

ValidationExpression="/d{5}" //只允许5个数字

Runat="Server" />

3.CompareValidator (比较值)

Start Date:

<asp:TextBox

id="txtStartDate"

Columns="8"

Runat="Server"/>

End Date:

<asp:TextBox

id="txtEndDate"

Columns="8"

Runat="Server"/>

<asp:CompareValidator

ControlToValidate="txtEndDate" //想要检验的控件

ControlToCompare="txtStartDate" //用来比较值的控件

Display="Dynamic"

Text="End date must be greater than start date!"

Operator="GreaterThan" //使用的比较操作符,大于

Type="Date" //检验类型 如string,integer

Runat="Server" />

Enter your birth date:

<asp:TextBox

id="txtBirthDate"

Columns="10"

Runat="Server"/>

<asp:CompareValidator

ControlToValidate="txtBirthDate"

Display="Dynamic"

Text="Invalid birth date!"

Operator="DataTypeCheck" //日期格式

Type="Date"

Runat="Server" />

4.RangeValidator (检查值的范围)

后台:

void Page_Load(Object sender , EventArgs e)

{

valgMeetingDate.MinimumValue = DateTime.Now.ToString("MM/dd/yyyy");

valgMeetingDate.MaximumValue = DateTime.Now.AddMonths(3).ToString("MM/dd/yyyy");

}

前台:

Choose a meeting date in the next three months:

<asp:TextBox

id="txtMeetingDate"

Columns="10"

Runat="Server"/>

<asp:RangeValidator

ID="valgMeetingDate"

ControlToValidate="txtMeetingDate"

Display="Dynamic"

Text="Date must be in the next 3 months!"

Type="Date"

Runat="Server" />

5.ValidationSummary (错误汇总控件)

错误显示在页面式:

<asp:ValidationSummary

HeaderText="There are problems with the following

form fields:"

Runat="Server" />

First Name:

<asp:TextBox

ID="txtFirstname"

Runat="Server" />

<asp:RequiredFieldValidator

ID="reqVal1"

ControlToValidate="txtFirstname"

Text="You must enter a first name!"

ErrorMessage="First Name"

Runat="Server" />

Last Name:

<asp:TextBox

ID="txtLastname"

Runat="Server" />

<asp:RequiredFieldValidator

ID="reqVal2"

ControlToValidate="txtLastname"

Text="You must enter a last name!"

ErrorMessage="Last Name"

Runat="Server" />

错误弹出窗口式:

<asp:ValidationSummary

ShowMessageBox="True"

HeaderText="There are problems with the following

form fields:"

Runat="Server" />

First Name:

<asp:TextBox

ID="txtFirstname"

Runat="Server" />

<asp:RequiredFieldValidator

ControlToValidate="txtFirstname"

Text="You must enter a first name!"

ErrorMessage="First Name"

Runat="Server" />

Last Name:

<asp:TextBox

ID="txtLastname"

Runat="Server" />

<asp:RequiredFieldValidator

ControlToValidate="txtLastname"

Text="You must enter a last name!"

ErrorMessage="Last Name"

Runat="Server" />