ASP.NET Tutorial/Validation/RegularExpressionValidator

Материал из .Net Framework эксперт
Перейти к: навигация, поиск

Making sure the text-box value is an e-mail address

   <source lang="csharp">

<%@ Page Language="VB" %> <script runat="server"> 

   Protected Sub Button1_Click(sender As Object, e As EventArgs)
      Label1.Text = "Passwords match"
   End Sub

</script> <html xmlns="http://www.w3.org/1999/xhtml" > <head id="Head1" runat="server"> 

   <title>CompareFieldValidator</title>

</head> <body> 

   <form id="Form1" runat="server">
       Email:
       <asp:TextBox ID="TextBox1" Runat="server"></asp:TextBox>
       <asp:RegularExpressionValidator ID="RegularExpressionValidator1"
                                       Runat="server" 
                                       ControlToValidate="TextBox1"
                                       ErrorMessage="You must enter an email address"
                                       ValidationExpression="\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*">
       </asp:RegularExpressionValidator>
       
           <asp:Button ID="Button1" OnClick="Button1_Click" 
            Runat="server" Text="Login"></asp:Button>
       
       
           <asp:Label ID="Label1" Runat="server"></asp:Label>
       
   </form>

</body> </html></source>


Validate email

   <source lang="csharp">

<%@ Page Language="C#" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> 

   <title>Regular Expression Tester</title>

</head> <body> 

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

       Email:

       <asp:TextBox ID="txtEmail" runat="server"></asp:TextBox>
          <asp:RegularExpressionValidator ID="regEmail" 
          runat="server" 
          ControlToValidate="txtEmail"  
          ValidationExpression="^(.+)@([^\.].*)\.([a-z]{2,})$"
          Text="Enter a valid email" />   
       
        
     <asp:Button ID="btnSubmit" 
                 Text="Click this to test validation" 
                 runat="server" />
     

   </form>

</body> </html></source>


Validate Name

   <source lang="csharp">

<%@ Page Language="C#" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> 

   <title>Regular Expression Tester</title>

</head> <body> 

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

   Name:

   <asp:TextBox ID="txtName" runat="server"></asp:TextBox>
   <asp:RegularExpressionValidator ID="regName" runat="server" 
      ControlToValidate="txtName" 
      ValidationExpression="^[a-zA-Z".\s]{1,50}"
      Text="Enter a valid name" />   
   
     
     <asp:Button ID="btnSubmit" Text="Click this to test validation" runat="server" />
     

   </form>

</body> </html></source>


Validate phone number

   <source lang="csharp">

<%@ Page Language="C#" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> 

   <title>Regular Expression Tester</title>

</head> <body> 

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

       Phone Number:

       <asp:TextBox ID="txtPhone" runat="server"></asp:TextBox>
          <asp:RegularExpressionValidator 
          ID="regPhone" 
          runat="server" 
          ControlToValidate="txtPhone" 
          ValidationExpression="^(\(?\s*\d{3}\s*[\)\-\.]?\s*)?[2-9]\d{2}\s*[\-\.]\s*\d{4}$"
          Text="Enter a valid phone number" />   
       
        
     <asp:Button ID="btnSubmit" 
                 Text="Click this to test validation" 
                 runat="server" />
     

   </form>

</body> </html></source>


Validate URL

   <source lang="csharp">

<%@ Page Language="C#" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> 

   <title>Regular Expression Tester</title>

</head> <body> 

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

       Web Site URL:

       <asp:TextBox ID="txtUrl" runat="server"></asp:TextBox>
          <asp:RegularExpressionValidator ID="regUrl" 
          runat="server" 
          ControlToValidate="txtUrl" 
          ValidationExpression="^((http|https)://)?([\w-]+\.)+[\w]+(/[\w- ./?]*)?$"
          Text="Enter a valid URL" />   
       
        
     <asp:Button ID="btnSubmit" Text="Click this to test validation" runat="server" />
     

   </form>

</body> </html></source>


Validate Zip code

   <source lang="csharp">

<%@ Page Language="C#" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server"> 

   <title>Regular Expression Tester</title>

</head> <body> 

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

       <asp:Label ID="Label3" 
                  runat="server" 
                  Text="The Following Field (TextBox3) Must be a US Zip Code."></asp:Label>

       <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
       <asp:RegularExpressionValidator ID="RegularExpressionValidator1" 
                                       runat="server" 
                                       ControlToValidate="TextBox3"
                                       ErrorMessage="TextBox3 Must be a US Zip Code" 
                                       SetFocusOnError="True" 
                                       ValidationExpression="\d{5}(-\d{4})?">*</asp:RegularExpressionValidator>

   </form>

</body>

</html></source>
Источник — «http://nfex.ru/index.php?title=ASP.NET_Tutorial/Validation/RegularExpressionValidator&oldid=3046»