邮箱格式验证
邮箱格式验证应该怎么来实现 --------------------编程问答-------------------- //验证 E-mail 格式string regexEmail = "\\w{1,}@\\w{1,}\\.\\w{1,}"; --------------------编程问答-------------------- 正则表达式 --------------------编程问答--------------------
我觉得@前面不一定没有‘.’,因为我的邮箱就有一个,所以这个。。。
--------------------编程问答--------------------
<asp:regularexpressionvalidator id="RegularExpressionValidator5" runat="server" ControlToValidate="txt_Email"ValidationExpression="\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*" ErrorMessage="*"></asp:regularexpressionvalidator>--------------------编程问答-------------------- 正则
验证Email 地址:“^\w+[-+.]\w+)*@\w+([-.]\w+)*.\w+([-.]\w+)*$”--------------------编程问答--------------------
--------------------编程问答--------------------
if (!IsValidEmail(txtEmail, txtEmail.NM, false)) return false;
/// <summary>
/// Email的检查
///
/// </summary>
/// <param name="txt">控件</param>
/// <param name="empty">空检查标志</param>
/// <param name="lenb">长度检查标志</param>
/// <returns></returns>
private bool IsValidEmail(TextBoxBase txt, string nm, bool empty)
{
// Return true if txt is in valid e-mail format.
if (empty)
{
if (txt.Text == string.Empty)
{
lblMsg.Text = nm + cm.GetMessage("E00004");
lblMsg.ForeColor = Color.Red;
txt.Focus();
return false;
}
}
else if (txt.Text!="")
{
if (!Regex.IsMatch(txt.Text, @"^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$"))
{
lblMsg.Text = nm + cm.GetMessage("E00019");
lblMsg.ForeColor = Color.Red;
txt.Focus();
return false;
}
}
return true;
}
--------------------编程问答--------------------
/// <summary>
/// 名字的获取在设定
/// </summary>
[Bindable(true),
Category("追加属性 名字"),
DefaultValue(true),
Description("控件的名字的获取或设定。")]
public string NM
{
get
{
//this.value = this.Text;
return this.nm;
}
set
{
//this.Text = value;
this.nm = value;
}
}
string pattern=@"\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*";--------------------编程问答-------------------- 前台验证:
--------------------编程问答-------------------- 添加后台验证控件
<asp:TextBox ID="TxtEmail" runat="server" CssClass="inputTxt2"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator4" runat="server" ErrorMessage="邮箱地址为必填项" ControlToValidate="TxtEmail" Display="Dynamic"></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="TxtEmail"
ErrorMessage="无效的电子邮箱地址" ValidationExpression="^\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$" Display="Dynamic"></asp:RegularExpressionValidator>
<asp:CustomValidator ID="CustomValidator1" runat="server" OnServerValidate="CustomValidator1_ServerValidator"
Display="Dynamic" ErrorMessage="无效的邮箱格式"></asp:CustomValidator>
//后台验证
protected void CustomValidator1_ServerValidator(object source, ServerValidateEventArgs args)
{
if (!Regex.IsMatch(txt.Text, "^\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$"))
{
args.IsValid = false;
}
else
{
args.IsValid = true;
}
}
protected void btnSave_Click(object sender, EventArgs e)
{
if (Page.IsValid)
{
//验证通过
}
}
--------------------编程问答-------------------- 楼上很全面了,前后台验证都有了。 --------------------编程问答-------------------- 正则表达式\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*
补充:.NET技术 , C#