ASP.NET页面几个常用表单验证

<div style="text-align: center">
    
        整数：<asp:TextBox ID="txtNumeric" runat="server"></asp:TextBox>
        <asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" 
            ControlToValidate="txtNumeric" Display="None" ErrorMessage="整数" 
            SetFocusOnError="True" ValidationExpression="((-)?[1-9]+\d*)|0"></asp:RegularExpressionValidator>
        <br />
        <br />
        数字：<asp:TextBox ID="txtPNum" runat="server"></asp:TextBox>
        <asp:RegularExpressionValidator ID="RegularExpressionValidator3" runat="server" 
            ControlToValidate="txtPNum" Display="None" ErrorMessage="数字" 
            SetFocusOnError="True" 
            ValidationExpression="(((-?[1-9]+\d*)|(-?0))\.\d+)|(((-)?[1-9]+\d*)|0)"></asp:RegularExpressionValidator>
        <br />
        <br />
    
        字符/数字/下划线(至少6位)：<asp:TextBox ID="txtCNL" runat="server"></asp:TextBox>
        <asp:RegularExpressionValidator ID="RegularExpressionValidator2" runat="server" 
            ControlToValidate="txtCNL" Display="None" ErrorMessage="字符、数字、下划线至少6位" 
            SetFocusOnError="True" ValidationExpression="\w{6,}"></asp:RegularExpressionValidator>
        <br />
        <br />
        邮箱：<asp:TextBox ID="txtEmail" runat="server"></asp:TextBox>
        <asp:RegularExpressionValidator ID="RegularExpressionValidator4" runat="server" 
            ControlToValidate="txtEmail" Display="None" ErrorMessage="邮箱" 
            ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"></asp:RegularExpressionValidator>
        <br />
        <br />
        网址：http(s)://<asp:TextBox ID="txtURL" runat="server"></asp:TextBox>
        <asp:RegularExpressionValidator ID="RegularExpressionValidator5" runat="server" 
            ControlToValidate="txtURL" Display="None" ErrorMessage="网址" 
            ValidationExpression="([\w-]+\.)+[\w-]+(/[\w- ./?%&amp;=]*)?"></asp:RegularExpressionValidator>
        <br />
        <br />
        <br />
        日期(8位数字)：<asp:TextBox ID="txtDate" runat="server"></asp:TextBox>
        <asp:RegularExpressionValidator ID="RegularExpressionValidator6" runat="server" 
            ControlToValidate="txtDate" Display="None" ErrorMessage="日期" 
            ValidationExpression="[1-9]\d{3}((0[1-9])|1[0-2])((0[1-9])|([1-2]\d)|(3[0-1]))"></asp:RegularExpressionValidator>
        <br />
        <br />
        <asp:Button ID="Button2" runat="server" Text="Check" />
        <br />
        <br />
    <div style="text-align: center">
    
        <asp:ValidationSummary ID="ValidationSummary2" runat="server" />
    
    </div>
        <br />
    
    </div>