C# 防止范围验证程序在asp.net中使用正则表达式验证程序显示错误消息

我有一个id为

txtNumOfBooks

的文本框，我正在根据以下3个验证器进行验证：

<asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" ControlToValidate="txtNumOfBooks" Display="Dynamic" ErrorMessage="Please enter the number of books" SetFocusOnError="True" CssClass="style4" ValidationGroup="CreateVac">
</asp:RequiredFieldValidator>

<asp:RegularExpressionValidator ID="RegularExpressionValidator2" runat="server" ControlToValidate="txtNumOfBooks" Display="Dynamic" ErrorMessage="Please enter the valid number" ValidationExpression="[0-9]\d*[0-9]" CssClass="style4" ValidationGroup="CreateVac">
</asp:RegularExpressionValidator>

<asp:RangeValidator ID="RangeValidator1" runat="server" ControlToValidate="txtNumOfBooks"
Display="Dynamic" ErrorMessage="Number of books in a book shelf should be in range 1-100"
MaximumValue="100" MinimumValue="1" Type="Integer" CssClass="style4" ValidationGroup="CreateVac">
</asp:RangeValidator>

---

如何避免范围验证器使用正则表达式验证器消息显示其错误消息？

最后，找到了答案。需要添加一个javascript函数来删除不必要的范围验证器消息。该函数为：

  function clearRangeMessagePosition() {
            if (document.getElementById('<%=RegularExpressionValidator1.ClientID %>').getAttribute('isValid') != true.toString()) {
                document.getElementById('<%=RangeValidator1.ClientID %>').innerText = "";
            }
            else {
                document.getElementById('<%=RangeValidator1.ClientID %>').innerText = "Please enter number of books in range 1-100";
            }
        }

函数clearRangeMessagePosition（）{
if（document.getElementById（“”）.getAttribute（'isValid'）！=true.toString（）{
document.getElementById（“”）.innerText=“”；
}
否则{
document.getElementById（“”）.innerText=“请输入范围为1-100的图书数量”；
}
}

  function clearRangeMessagePosition() {
            if (document.getElementById('<%=RegularExpressionValidator1.ClientID %>').getAttribute('isValid') != true.toString()) {
                document.getElementById('<%=RangeValidator1.ClientID %>').innerText = "";
            }
            else {
                document.getElementById('<%=RangeValidator1.ClientID %>').innerText = "Please enter number of books in range 1-100";
            }
        }