aspx网页验证文本框

来源：互联网发布：微商城数据统计编辑：程序博客网时间：2024/05/19 02:45

<p>用户名：<asp:TextBox ID="txtUserName" runat="server" CssClass="textbox"></asp:TextBox>                <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ErrorMessage="请输入用户名！" Text="*" ControlToValidate="txtUserName"></asp:RequiredFieldValidator>            </p>            <p>密   码：<asp:TextBox ID="txtPassword" runat="server" TextMode="Password" CssClass="textbox"></asp:TextBox>                <asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" ErrorMessage="请输入密码" Text="*" ControlToValidate="txtPassword"></asp:RequiredFieldValidator>            </p>            <p>验证码：                <img src="../Handler/WaterMark.ashx" id="vimg" alt="" onclick="changeCode()"/>                <asp:TextBox ID="txtCode" runat="server" CssClass="txtcode"></asp:TextBox>                <asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" ErrorMessage="请输入验证码！" Text="*" ControlToValidate="txtCode"></asp:RequiredFieldValidator>            </p>

弹出框（可以在页面任何位置）：

<asp:ValidationSummary ID="ValidationSummary1" runat="server" ShowMessageBox="true" ShowSummary="false"/>

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