堆棧內存溢出
  簡體   English   中英

在ASP.NET C＃中使用RequiredFieldValidator控件的問題

[英]Problem in using RequiredFieldValidator control in asp.net c#

 原文  2011-04-20 06:38:01  0   4    c#/ asp.net/ session/ logout/ requiredfieldvalidator

問題描述

我在asp.net程序中使用RequiredFieldValidator。 我有一個退出按鈕，用於終止會話，但是當我單擊此退出按鈕而未在任何文本框中插入任何值時，RequiredFieldValidator會引發錯誤，並且我無法退出。

我想注銷用戶而不在文本框中輸入任何值。

如果我的代碼有任何問題，請檢查我的代碼。 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class EntryForm : System.Web.UI.Page
{

    protected void Page_Load(object sender, EventArgs e)
    {// CHEK SESSION VARIABLE AND LOAD dropdownlist1 WITH VALUES
        if (!IsPostBack)
        {
            String DB = "";
            String AccountID = "";
            if (Session["login"] != null && Session["db"] != null)
            {
                AccountID = Session["login"].ToString();
                DB = Session["db"].ToString();

                Label9.Text = AccountID;
            }
            else
            {
                Response.Redirect("log.aspx");
            }
            HiddenField1.Value = DB.ToString();
            DropDown a = new DropDown();
            a.filldropdown1(this.DropDownList1, DB);
        }
    }
    protected void LinkButton1_Click(object sender, EventArgs e)
    {
        // LOG OUT***********////////////
            Session.Abandon();
            Response.Redirect("log.aspx");

    }

.aspx代碼 

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="EntryForm.aspx.cs" Inherits="EntryForm" %>

<%@ Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit.HTMLEditor" tagprefix="cc1" %>

<!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></title>
    <style type="text/css">
        .style1
        {
            width: 330px;
        }
        .style2
        {
            text-align: center;
        }
        .style3
        {
            text-align: center;
            width: 38px;
        }
        .style4
        {
            text-align: center;
            width: 109%;
        }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <table style="width:90%; height: 30px;">
        <tr>
            <td class="style1">
                &nbsp;<asp:Label ID="Label8" runat="server" style="text-align: left" 
                    Text="Welcome"></asp:Label>
&nbsp;<asp:Label ID="Label9" runat="server" style="text-align: left"></asp:Label>
                &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </td>
            <td align="center" width="100%" style="text-align: right">
                <asp:LinkButton ID="LinkButton1" runat="server" onclick="LinkButton1_Click" 
                    style="text-align: right">Log Out</asp:LinkButton>
                &nbsp;&nbsp;&nbsp;&nbsp;
            </td>
        </tr>
    </table>
    </div>
    <table style="width:95%;" align="center" bgcolor="Silver">
        <tr>
            <td>
                <asp:Label ID="Label1" runat="server" Text="Type :  "></asp:Label>
&nbsp;
                <asp:DropDownList ID="DropDownList1" runat="server">
                </asp:DropDownList>
                <asp:RequiredFieldValidator ID="RequiredFieldValidator7" runat="server" 
                    ControlToValidate="DropDownList1" ErrorMessage="*" 
                    InitialValue="&lt;-- Select --&gt;">*</asp:RequiredFieldValidator>
            </td>
            <td>
                <asp:Label ID="Label2" runat="server" Text="No. :"></asp:Label>
&nbsp;<asp:TextBox ID="TextBox1" runat="server" Width="75px"></asp:TextBox>
                <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" 
                    ControlToValidate="TextBox1" ErrorMessage="*">*</asp:RequiredFieldValidator>
            </td>
            <td>
                <asp:Label ID="Label3" runat="server" Text="Year :"></asp:Label>
&nbsp;
                <asp:TextBox ID="TextBox2" runat="server" Width="75px"></asp:TextBox>
                <asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server" 
                    ControlToValidate="TextBox2" ErrorMessage="Enter Year">*</asp:RequiredFieldValidator>
                <asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" 
                    ControlToValidate="TextBox2" ErrorMessage="Enter year" 
                    ValidationExpression="^\d{4}$">YYYY</asp:RegularExpressionValidator>
            </td>
                <td>
                    <asp:Label ID="Label4" runat="server" Text="Order Date : "></asp:Label>
                    <asp:TextBox ID="TextBox3" runat="server" Width="75px"></asp:TextBox>
                    <asp:RequiredFieldValidator ID="RequiredFieldValidator6" runat="server" 
                        ControlToValidate="TextBox3" ErrorMessage="Enter proper format">*</asp:RequiredFieldValidator>
                    <asp:RegularExpressionValidator ID="RegularExpressionValidator2" runat="server" 
                        ControlToValidate="TextBox3" ErrorMessage="Enter valid date" 
                        ValidationExpression="^(((0[1-9]|[12]\d|3[01])\/(0[13578]|1[02])\/((19|[2-9]\d)\d{2}))|((0[1-9]|[12]\d|30)\/(0[13456789]|1[012])\/((19|[2-9]\d)\d{2}))|((0[1-9]|1\d|2[0-8])\/02\/((19|[2-9]\d)\d{2}))|(29\/02\/((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))))$">dd/mm/yyyy</asp:RegularExpressionValidator>
            </td>
                <td>
                    <asp:Button ID="Button2" runat="server" Text="GO" onclick="Button2_Click" />
            </td>
        </tr>
    </table>
    <br />
    <table style="width:100%;">
        <tr>
            <td style="text-align: center">
                <asp:DropDownList ID="DropDownList2" runat="server" AutoPostBack="True" 
                    style="text-align: center" Visible="False" 
                    onselectedindexchanged="DropDownList2_SelectedIndexChanged">
                </asp:DropDownList>
            </td>
        </tr>
    </table>
    <br />
    <table style="width:100%;">
        <tr>
            <td style="text-align: center" width="100%">
                <asp:Label ID="Label5" runat="server" Text="Label" Visible="False" 
                    style="text-align: center"></asp:Label>
            </td>
            <td style="text-align: center" width="100%">
                <asp:Label ID="Label6" runat="server" Text="Vs" Visible="False"></asp:Label>
            </td>
            <td style="text-align: center" width="100%">
                <asp:Label ID="Label7" runat="server" Text="Label" Visible="False"></asp:Label>
            </td>
        </tr>
    </table>
    <br />
    <table style="width:100%;" border="1">
        <tr>
            <td class="style3" width="100%">
                &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </td>
            <td class="style4" width="100%">
                <cc1:Editor ID="Editor1" runat="server" Width="60%" AutoFocus="true" 
                    style="text-align: right" />
            </td>
            <td class="style2" width="100%">
                &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </td>
        </tr>
    </table>
    <br />
    <asp:ScriptManager ID="ScriptManager1" runat="server">
                            </asp:ScriptManager>
    <asp:HiddenField ID="HiddenField1" runat="server"/>
    </form>
    </body>
</html>

4 個解決方案

解決方案1
 3  2011-04-20 06:46:17

有兩種方法可以做到這一點

將驗證組屬性放入控件 

ValidationGroup="input"

要么

在退出鏈接按鈕上， 

CausesValidation="false"

解決方案2
 2  2011-04-20 06:43:05

使用驗證組屬性對要驗證的項目進行分組。
http://www.w3schools.com/ASPNET/prop_webcontrol_imagebutton_validationgroup.asp

解決方案3
 1 已采納  2011-04-20 06:42:02

在“注銷”按鈕上，將CausesValidation屬性設置為false 

<asp:LinkButton ID="LinkButton1" runat="server" onclick="LinkButton1_Click" 
                    CausesValidation="False"
                    style="text-align: right">Log Out</asp:LinkButton>

解決方案4
 1  2011-04-20 06:53:05

有一個按鈕CausesValidation的屬性; 將其設置為false。 比頁面上的驗證不會觸發。

暫無
暫無

聲明:本站的技術帖子網頁，遵循CC BY-SA 4.0協議，如果您需要轉載，請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.

相關問題 在asp.net c#中禁用RequiredFieldValidator 帶有自定義控件的asp.net RequiredFieldValidator asp.net RequiredFieldValidator formview 中的驗證控制問題 ASP.NET C# 在ASP.NET中使用RequiredFieldValidator的DropdownList值 如何使用包含驗證文本框值的RequiredFieldValidator控件的asp.net創建Web服務器控件 ASP C＃RequiredFieldValidator 使用用戶控件的ASP.NET C＃下拉列表 使用Silverlight創建自定義控件C＃ASP.NET 在ASP.Net C＃中使用jquery日歷控件
相關標簽
 
粵ICP備18138465號  © 2020-2024 STACKOOM.COM