Brought from: http://salearningschool.com/displayArticle.php?table=Articles&articleID=1325&title=ASP.Net%20Validation%20Control%20Examples%20in%20C#.
ASP.Net Validation Control Examples. Just check the code below
Some notes
- RequiredFieldValidator: is used to check that a field is filled up
- CompareValidator: Compare the value of a field with another field or data
- RangeValidator: Compares the data is within a given range
- RegularExpressionValidator: Domain name syntax, email addtress syntax
- ValidationSummary: Display all validation errors in a summary box
- CompareValidator: Write your own custom validation rules and display the outcome
- Remember
- You can display error on the side of the control
- You can display error under the control
- The example used both just for example
- The Text property is the output that comes just where the validation control is placed. ErrorMessage propert is for the ValidationSummary
- If you just want the Validation Summary output, use Display="none" for the validation control (not the summarycontrol) itself
- the code can be seen at http://salearningschool.com/samples/validate.txt as well
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="validation.aspx.cs" Inherits="validation" %> <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title>Validation Control</title> </head> <body> <form id="form1" runat="server"> <div> <asp:ValidationSummary ID="ValidationSummary1" HeaderText="Form Validation Summary" DisplayMode="BulletList" EnableClientScript="true" ForeColor = "Red" runat="server" /> <asp:Label ID="lblFirstName" runat="server" Text="First Name:" Width="120"></asp:Label> <asp:TextBox ID="txtFirstName" runat="server"></asp:TextBox> <asp:RequiredFieldValidator ID="firstNameValidator" ControlToValidate="txtFirstName" ErrorMessage="First Name Required" InitialValue="" Text="" Display ="None" runat="server"/> <br /> <asp:Label ID="lblLastName" runat="server" Text="Last Name" Width="120"> </asp:Label> <asp:TextBox ID="txtLastName" runat="server"></asp:TextBox> <br/> <asp:RequiredFieldValidator ID="RequiredFieldValidator1" ControlToValidate="txtLastName" ErrorMessage="Last Name Required" InitialValue="" Text="Last Name Required" ForeColor="Red" runat="server"/> <br /> <asp:Label ID="lblEmail" runat="server" Text="Email:" Width="120"> </asp:Label> <asp:TextBox ID="txtEmail" runat="server"></asp:TextBox> <asp:RegularExpressionValidator ID="emailValidation" runat="server" ControlToValidate="txtEmail" ErrorMessage="Invalid Fformat" ValidationExpression="^([a-zA-Z][w.-]*[a-zA-Z0-9]@[a-zA-Z0-9][w.-]*[a-zA-Z0-9] .[a-zA-Z][a-zA-Z.]*[a-zA-Z]){1,70}$" ForeColor ="Red" /> <br /> <asp:Label ID="lblPassword" runat="server" Text="Password" Width="120"> </asp:Label> <asp:TextBox ID="txtPassword" runat="server" TextMode="Password"> </asp:TextBox> <br /> <asp:Label ID="lblPassword2" runat="server" Text="Re Enter Password" Width="120"> </asp:Label> <asp:TextBox ID="txtPassword2" runat="server" TextMode="Password"> </asp:TextBox> <br /> <asp:CompareValidator ID="compareV" ControlToValidate="txtPassword" ControlToCompare="txtPassword2" runat="server" Text="mismatchmatch" ForeColor="Red" /> <br /> <asp:Button ID="btnSubmit" runat="server" OnClick="Button1_Click" Text="Submit" /> </div> </form> </body> </html>
From: http://sitestree.com/?p=3729
Categories:.Net Web Applications
Tags:
Post Data:2016-07-16 11:12:48
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