Question

我正在尝试编写一个RegularExpressionValidator，它会检查以确保文本框中的条目是整数（不包含“。”或“，”，只有“500”之类的整数值）

但我遇到过这个问题：

Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.

Parser Error Message: The server tag is not well formed.

代码如下：

<asp:TextBox ID="Paymenttb" runat="server"></asp:TextBox>
<asp:RegularExpressionValidator ID ="PaymentValidator" runat="server" ControlToValidate="Paymenttb" 
ErrorMessage="Payment must be of type Int (No "." or "," for example)." ValidationExpression="^\d+$">*</asp:RegularExpressionValidator>

这有什么问题？我四处搜寻，找不到任何理由说明这种情况不好。

Answer 1

ErrorMessage="Payment must be of type Int (No "." or "," for example)."

这一部分。您在引用的参数中有引号。

你可以通过使用外引号单引号来解决这个问题：

ErrorMessage='Payment must be of type Int (No "." or "," for example).'

另一种解决方案：逃避引用html风格：

ErrorMessage="Payment must be of type Int (No &quot;.&quot; or &quot;,&quot; for example)."

“

Answer 2

您的ErrorMessage属性格式不正确：

ErrorMessage="Payment must be of type Int (No "." or "," for example)."

您需要转义属性值中的" - 通过将它们加倍来实现：

ErrorMessage="Payment must be of type Int (No ""."" or "","" for example)."

或者，使用单引号来分隔属性值：

ErrorMessage='Payment must be of type Int (No "." or "," for example).'

Answer 3

试试这个

<asp:TextBox ID="Paymenttb" runat="server"></asp:TextBox>


<asp:RegularExpressionValidator ID ="RegularExpressionValidator1" runat="server" ControlToValidate="Paymenttb"  ToolTip="Payment must be of type Int (No '.' or ',' for example)." ValidationExpression="^\d+$">*</asp:RegularExpressionValidator>

OR

<asp:RegularExpressionValidator ID ="PaymentValidator" runat="server" ControlToValidate="Paymenttb"  ErrorMessage="Payment must be of type Int (No '.' or ',' for example)." ValidationExpression="[0-9]"></asp:RegularExpressionValidator>

服务器标签格式不正确 - RegularExpressionValidator

3 个答案: