ASP.Net/Validation by Control/RangeValidator — различия между версиями

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Текущая версия на 11:51, 26 мая 2010

RangeValidator Demo: The Quantity field must be from 1 to 30! (VB.net)

<%@ Page Language=VB Debug=true %>
<%@ Import Namespace="System.Data" %>
<script runat=server>
</SCRIPT>
<HTML>
<HEAD>
<TITLE>CompareValidator Control Sample Page</TITLE>
</HEAD>
<BODY >
<form runat="server">
<Font Face="Tahoma">
<BR><BR>
<asp:Label
    id="lblMessage"
    runat="server"
    Font-Bold="True"
    Text="Quantity"
/>
<asp:TextBox 
    id="txtQuantity" 
    Columns="25"
    MaxLength="30"
    runat=server 
/>
<asp:RangeValidator 
    id="rngQuantity" 
    ControlToValidate="txtQuantity" 
    Type="Integer" 
    MinimumValue=1
    MaximumValue=30 
    Display="Dynamic"
    Font-Name="Verdana"
    Font-Bold="True"
    Font-Size="10pt"
    runat="server">
    The Quantity field must be from 1 to 30!
</asp:RangeValidator>
<BR><BR>
<asp:Label
    id="lblMessage2"
    runat="server"
    Font-Bold="True"
    Text="Date"
/>
<asp:TextBox 
    id="txtDate" 
    Columns="25"
    MaxLength="30"
    runat=server 
/>
<asp:RangeValidator 
    id="rngDate" 
    ControlToValidate="txtDate" 
    Type="Date" 
    MinimumValue="1/1/2000"
    MaximumValue="12/31/2010"
    Display="Dynamic"
    Font-Name="Verdana"
    Font-Bold="True"
    Font-Size="10pt"
    runat="server">
    The Date field must be from 1/1/2000 to 12/31/2001!
</asp:RangeValidator>
<BR><BR>
<asp:button 
    id="butOK"
    text="OK"
    Type="Submit"
    runat="server"
/>
</Font>
</Form>
</BODY>
</HTML>



Rangevalidator: Enter an integer between 0 and 100 (VB.net)

<%@ Page Language="vb" %>
<html>
<head>
   <title>Validation Control Example</title>
    <script language="javascript">
    <!--
      function ClientValidate(source, arguments)
      {
         //alert(arguments.Value);
         var r, re;      //Declare variables.
         re = new RegExp(/^[1-9][0-9][0-9][0-9]$/);  //Create regular expression object.
         r = re.test(arguments.Value);  //Test for match.
         arguments.IsValid = r;    //Return results.
      }
   -->
   </script>
   <script runat="server">
      Sub Page_Load()
         vsSummary.DisplayMode = ValidationSummaryDisplayMode.List
      End Sub
      Sub ServerValidation (source As object, args As ServerValidateEventArgs)
         Dim RegExVal As New System.Text.RegularExpressions.Regex("^\d{4}$")
         If RegExVal.IsMatch(args.Value) Then
            args.IsValid = True
         Else
            args.IsValid = False
         End If
      End Sub
   </script>
</head>
<body>
   <h1>Validation Control Example</h1>
   <form runat="server">
      <asp:table id="MyTable" border="1" cellpadding="5" cellspacing="0" runat="server">
         <asp:tablerow runat="server">
            <asp:tablecell runat="server">
               CustomValidator Control:
               <br><br>
               Enter a 4-digit year
            </asp:tablecell>
            <asp:tablecell runat="server">
               <asp:textbox id="year" runat="server"/><br>
               <asp:customvalidator id="cvDate" 
                  controltovalidate="year"
                  errormessage="Not a valid year!"
                  onservervalidate="servervalidation"
                  clientvalidationfunction="ClientValidate"
                  display="dynamic"
                  runat="server"/>
            </asp:tablecell>
         </asp:tablerow>
         <asp:tablerow runat="server">
            <asp:tablecell runat="server">
               RangeValidator Control:
               <br><br>
               Enter an integer between 0 and 100
            </asp:tablecell>
            <asp:tablecell runat="server">
               <asp:textbox id="value" runat="server"/><br>
               <asp:rangevalidator id="rvCompare"
                  controltovalidate="value" 
                  minimumvalue="0"
                  maximumvalue="100" 
                  type="integer" 
                  errormessage="Value not in valid range!" 
                  runat="server"/>
            </asp:tablecell>
         </asp:tablerow>

         <asp:tablerow runat="server">
            <asp:tablecell runat="server">
               ValidationSummary Control:
            </asp:tablecell>
            <asp:tablecell runat="server">
               <asp:validationsummary id="vsSummary"
                  displaymode="bulletlist" 
                  headertext="Page has the following errors: "
                  showsummary="true" 
                  showmessagebox="false"
                  runat="server"/>
            </asp:tablecell>
         </asp:tablerow>
         <asp:tablerow runat="server">
            <asp:tablecell colspan="2" runat="server">
               <asp:button text="submit" runat="server"/>
            </asp:tablecell>
         </asp:tablerow>
      </asp:table>
      <asp:label id="MyLabel" runat="server"/>
   </form>
</body>
</html>



Range validator for Date type value

<script runat="server" language="C#" >
protected void Page_Load(object o, EventArgs e) {
    if(IsPostBack && rangeValidator.IsValid ){
        message.Text = "Thanks, see you in September.";
    }
    else {
        message.Text = "Please start vacations on 2008/08/01";
    }
}
</script>
<form runat="server">
Enter your desired vacation start date:
<asp:Textbox runat="server" id="theDate" />
<asp:RangeValidator runat="server"
    id="rangeValidator"
    ControlToValidate="theDate"
    ErrorMessage="vacations must start on August 1st" 
    Type="Date"
    MinimumValue="2008/08/01"
    MaximumValue="2008/08/01"
/><br />
<b><asp:label runat="server" id="message" /></b>
<br /><asp:button type="submit" runat="server" Text="Submit" />
</form>



RangeValidator for integer type value

<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
        <asp:TextBox ID="txtValue" runat="server"></asp:TextBox>
        <asp:Button ID="Button1" runat="server" Text="Submit" />
        <asp:RangeValidator ControlToValidate="txtValue" 
                            ErrorMessage="RangeValidator" 
                            ID="RangeValidator1"
                            MaximumValue="20" 
                            MinimumValue="10" 
                            runat="server" 
                            Type="Integer">Between 10 and 20 please</asp:RangeValidator>
    
    </div>
    </form>
</body>
</html>



Set Focus On Error

<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Label ID="Label4" runat="server" Text="The Following Field (TextBox4) Must be an Integer Between 1 and 10"></asp:Label><br />
        <asp:TextBox ID="TextBox4" runat="server"></asp:TextBox>
        <asp:RangeValidator ID="RangeValidator1" 
                            runat="server" 
                            ControlToValidate="TextBox4"
                            ErrorMessage="TextBox4 Must be an Integer Between 1 and 10" 
                            MaximumValue="10"
                            MinimumValue="1" 
                            SetFocusOnError="True">*</asp:RangeValidator><br />
    </div>
    </form>
</body>
</html>



Validation test: range (C#)

<%@ Page language="c#" src="ValidationTest.aspx.cs" AutoEventWireup="false" Inherits="ValidationTest" %>
<HTML>
  <body>
    <form id="Form1" method="post" runat="server">
      <P>
        A number (1 to 10):
        <asp:TextBox id="txtValidated" runat="server"></asp:TextBox>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
        <asp:RangeValidator id="RangeValidator" runat="server" ErrorMessage="This Number Is Not In The Range" ControlToValidate="txtValidated" MaximumValue="10" MinimumValue="1" Type="Integer"></asp:RangeValidator><BR>
        <BR>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Not validated:&nbsp;
        <asp:TextBox id="txtNotValidated" runat="server"></asp:TextBox><BR>
      </P>
      <P><BR>
        <asp:Button id="cmdOK" runat="server" Text="OK"></asp:Button><BR>
        <BR>
        <asp:Label id="lblMessage" runat="server" EnableViewState="False"></asp:Label></P>
    </form>
  </body>
</HTML>

<%--
using System;
using System.Collections;
using System.ruponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
  public class ValidationTest : System.Web.UI.Page
  {
    protected System.Web.UI.WebControls.TextBox txtValidated;
    protected System.Web.UI.WebControls.RangeValidator RangeValidator;
    protected System.Web.UI.WebControls.TextBox txtNotValidated;
    protected System.Web.UI.WebControls.Button cmdOK;
    protected System.Web.UI.WebControls.Label lblMessage;
  
    private void Page_Load(object sender, System.EventArgs e)
    {
      // Put user code to initialize the page here
    }
    #region Web Form Designer generated code
    override protected void OnInit(EventArgs e)
    {
      //
      // CODEGEN: This call is required by the ASP.NET Web Form Designer.
      //
      InitializeComponent();
      base.OnInit(e);
    }
    
    /// <summary>
    /// Required method for Designer support - do not modify
    /// the contents of this method with the code editor.
    /// </summary>
    private void InitializeComponent()
    {    
      this.cmdOK.Click += new System.EventHandler(this.cmdOK_Click);
      this.Load += new System.EventHandler(this.Page_Load);
    }
    #endregion
    private void cmdOK_Click(object sender, System.EventArgs e)
    {
      if (!this.IsValid) return;
      lblMessage.Text = "cmdOK_Click event handler executed.";
    }
  }

--%>
Источник — «http://nfex.ru/index.php?title=ASP.Net/Validation_by_Control/RangeValidator&oldid=1795»