TextBox inside GridView validation
This is my code:
<asp:TemplateField HeaderText="Email">
<ItemTemplate>
<asp:TextBox ID="txtEmail" runat="server" Text='<%# Eval("Email") %>' Width="88px" CausesValidation="True" />
<asp:RegularExpressionValidator 开发者_运维技巧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.
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();
}
}
There might be the problem with the Validation group, you can check that.
Secondly you need to set the CausesValidation="true" in your button control.
Plus your email regular expression is not correct as well.
\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)* // yours
\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)* // correct one
Did you add Script Manager to your project ?
If so, nothing wrong with your validation code.
Just an idea, maybe you should add to validation controls EnableClientScript="false"
You would need to check if CausesValidation is enabled for the next button you are clicking.
Also in addition try setting the InitialValue-"" for the Required field validator
EDIT
Try modifying your code to adding the client script such as
button.Attributes.Add("onclick","return methodname");
<script type="text/javascript" language="javascript">
function ValidateText(i)
{
if(i.value.length>0)
{
i.value = i.value.replace(/[^\d]+/g, '');
}
}
</script>
<asp:TemplateField >
<ItemTemplate>
<asp:TextBox ID="TextBox1" runat="server" onkeyup ="ValidateText(this);"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
< /asp:TemplateField>
加载中,请稍侯......
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