服务器标签格式不正确 - RegularExpressionValidator

Question

我正在尝试编写一个RegularExpressionValidator，它检查以确保输入到文本框是整数（不包含“。”或“，”，只有像“500” ）

但我也遇到过这样的：

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. 

的代码如下：

<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> 

这有什么问题吗？ 我搜索了四周，找不到任何理由为什么这种形式不好。

Answer 1

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

这部分。你在引用的参数中有引号。

你可以去周围，通过使外报价单引号：

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

另一种解决方案：逃离报价HTML风格：

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

"

Answer 2

你ErrorMessage属性没有很好地形成：

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

你需要躲避"在属性值 - 做他们加倍：

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>