asp.net 2.0下的常用验证控件

asp.net 2.0中的几个常用验证控件，很好用，下面帖一些示例代码
 <form id="form1" runat="server">
    <div>
        <font color="blue">验证控件RequireFieldValidator:</font>
        <br>
        <asp:Label ID="Label1" Text='我的名字:' runat=server/>
        <asp:TextBox ID='tb' runat="server" Width = 100px ></asp:TextBox>
        <asp:Button ID='mybtn' Text='验证' runat='server'/>
        <asp:RequiredFieldValidator ID="RequiredFieldValidator1"
                                    ControlToValidate='tb'
                                    runat="server"
                                    ErrorMessage="请输入姓名"
                                    SetFocusOnError="true">
        </asp:RequiredFieldValidator>   
    </div>
    <br />
    <div>
        <font color="blue">验证控件CompareValidator:</font>
        <br>
        密    码:&nbsp;&nbsp;&nbsp;<asp:TextBox ID='psw' runat="server" Width=100px TextMode=Password></asp:TextBox>
        <asp:RequiredFieldValidator ID="RequiredFieldValidator2"
                                    ControlToValidate='psw'
                                    runat="server"
                                    ErrorMessage="请输入密码"
                                    SetFocusOnError="true">
        </asp:RequiredFieldValidator>   
        <br>
        再次输入:<asp:TextBox ID='repsw' runat=server Width=100px TextMode=Password></asp:TextBox>
        <asp:CompareValidator runat=server
                              id='CompareValidator1'
                              ControlToValidate='psw'
                              ControlToCompare='repsw'
                              ErrorMessage='前后输入不一致'
                              SetFocusOnError="true">
        </asp:CompareValidator>
        <br/>
        <asp:Button runat=server Text='提交' id='btn'/>
    </div> 
    <br /> 
    <div>
        <font color="blue">验证控件RangeValidator :</font>
        <br />
        数值:<asp:TextBox ID='tb1' runat=server></asp:TextBox>
        <asp:RangeValidator id='RangeValidator1'
                            runat=server
                            ControlToValidate='tb1'
                            Type=Integer
                            MinimumValue=0
                            MaximumValue=255
                            SetFocusOnError=true
                            ErrorMessage='请输入0-255数值'>
        </asp:RangeValidator>
        <br />
        <asp:Button ID="Button1" runat=server Text='提交' />
    </div>
    <br /> 
    <div>
        <font color="blue">验证控件RegularExpressionValidator  :</font>
        <br />
        数值:<asp:TextBox ID='tb2' runat=server></asp:TextBox>
        <asp:RegularExpressionValidator  ID="RegularExpressionValidator1" runat=server
                            ControlToValidate='tb2'
                            ValidationExpression='[a-zA-Z]'
                            SetFocusOnError=true
                            ErrorMessage='请输入英文'>
        </asp:RegularExpressionValidator >
        <br />
        <asp:Button ID="Button2" runat=server Text='提交' />
    </div>
    <br />
    <div>
        <font color="blue">验证控件ValidationSummary  :</font>
        <br />
        您的ID:<asp:TextBox ID='tb3' runat=server></asp:TextBox>
        <asp:RequiredFieldValidator  ID="RegularExpressionValidator2" runat=server
                            ControlToValidate='tb3'
                            SetFocusOnError=true
                            ErrorMessage='请输入您的ID'>
        </asp:RequiredFieldValidator>
        <br />
        <asp:Button ID="Button4" runat=server Text='提交' />
        <br>
        <div>
            <asp:ValidationSummary ID="regValidationSummary" runat="server"
                HeaderText="输入错误" DisplayMode="BulletList" />
        </div>
    </div>
    <br />
    <div>
        <font color="blue">验证控件CustomValidator  :</font>
        <br />
        <asp:DropDownList ID="list" runat="server">
            <asp:ListItem Text="请选择" Value="0"></asp:ListItem>
            <asp:ListItem Text="Item1" Value="a"></asp:ListItem>
            <asp:ListItem Text="Item2" Value="b"></asp:ListItem>
        </asp:DropDownList>
        <asp:CustomValidator ID="CustomValidator1" runat=server
                             ControlToValidate='list'
                             ErrorMessage='请选择列表'
                             SetFocusOnError=true
                             Display="dynamic"
                             OnServerValidate="CustomValidator1_ServerValidate">
        </asp:CustomValidator>
        <br />
        <asp:Button ID="Button3" runat=server Text='提交' />
        <br />
     </div>
    </form>