GridView 验证中的 TextBox [英] TextBox inside GridView validation

查看：15 发布时间：2021/12/24 13:29:05 .net asp.net regex validation gridview

本文介绍了GridView 验证中的 TextBox的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

这是我的代码:

<项目模板><asp:TextBox ID="txtEmail" runat="server" Text='<%# Eval("Email") %>'Width="88px" CausesValidation="True"/><asp:RegularExpressionValidator runat="server" ErrorMessage="输入有效的电子邮件 ID！"ValidationExpression="w+([-+.]w+)*@w+([-.]w+)*.w+([-.]w+)*" ControlToValidate="txtEmail"/><asp:RequiredFieldValidator runat="server" ErrorMessage="*" ControlToValidate="txtEmail"/></ItemTemplate></asp:TemplateField>

当我点击下一个按钮时，必填字段验证不会导致验证，也不会显示任何错误，页面正在重定向到下一页.

请帮帮我.

解决方案

查看以下代码.

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default4.aspx.cs" Inherits="Default4" %><!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="服务器"><title></title><身体><form id="form1" runat="server"><div><asp:GridView ID="grd" runat="server" AutoGenerateColumns="false"><列><asp:BoundField DataField="FirstName" HeaderText="FirstName"/><asp:TemplateField HeaderText="电子邮件"><项目模板><asp:TextBox ID="txtEmail" runat="server" Text='<%# Eval("Email") %>'宽度=88px"CausesValidation="True"/><asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ErrorMessage="输入有效的电子邮件 ID！"ValidationExpression="w+([-+.]w+)*@w+([-.]w+)*.w+([-.]w+)*" ControlToValidate="txtEmail"/><asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ErrorMessage="*"ControlToValidate="txtEmail"/></ItemTemplate></asp:TemplateField></列></asp:GridView>

<asp:Button ID="Button1" runat="server" Text="Button" CausesValidation="true"/></表单>

<小时>

使用系统；使用 System.Collections.Generic;使用 System.Linq；使用 System.Web；使用 System.Web.UI；使用 System.Web.UI.WebControls;公共部分类 Default4 : System.Web.UI.Page{protected void Page_Load(object sender, EventArgs e){var items = new[] {new { FirstName = "Name1",Email="sa@gmail.com" },new { FirstName = "Name2",Email="test@gmail.com" },new { FirstName = "Name3",Email="test@gmail.com" }};grd.DataSource = 项目；grd.DataBind();}}

This is my code:

<asp:TemplateField HeaderText="Email">
    <ItemTemplate> 
        <asp:TextBox ID="txtEmail" runat="server" Text='<%# Eval("Email") %>' Width="88px" CausesValidation="True" />
        <asp:RegularExpressionValidator runat="server" ErrorMessage="Enter a valid email id!" ValidationExpression="w+([-+.]w+)*@w+([-.]w+)*.w+([-.]w+)*" ControlToValidate="txtEmail" />
        <asp:RequiredFieldValidator runat="server" ErrorMessage="*" ControlToValidate="txtEmail" />
    </ItemTemplate>
</asp:TemplateField>

when i am clicking next button required field validation is not causing validation and its not showing any error and page is re-directing on next page.

Please help me.

解决方案

Check out the following code.

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default4.aspx.cs" Inherits="Default4" %>

<!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>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:GridView ID="grd" runat="server" AutoGenerateColumns="false">
            <Columns>
            <asp:BoundField DataField="FirstName" HeaderText="FirstName" />
                <asp:TemplateField HeaderText="Email">

                    <ItemTemplate>
                        <asp:TextBox ID="txtEmail" runat="server" Text='<%# Eval("Email") %>' Width="88px"
                            CausesValidation="True" />
                        <asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ErrorMessage="Enter a valid email id!"
                            ValidationExpression="w+([-+.]w+)*@w+([-.]w+)*.w+([-.]w+)*" ControlToValidate="txtEmail" />
                        <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ErrorMessage="*"
                            ControlToValidate="txtEmail" />
                    </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>
    </div>
    <asp:Button ID="Button1" runat="server" Text="Button" CausesValidation="true" />
    </form>
</body>
</html>

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

public partial class Default4 : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        var items = new[] {
                new { FirstName = "Name1",Email="sa@gmail.com" },
                new { FirstName = "Name2",Email="test@gmail.com" },
                new { FirstName = "Name3",Email="test@gmail.com" }};

        grd.DataSource = items;

        grd.DataBind();
    }
}

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