服務器標籤格式不正確 - RegularExpressionValidator

Question

我正在嘗試編寫一個RegularExpressionValidator，它檢查以確保輸入到文本框是整數（不包含「。」或「，」，只有像「500」 ）

但我也遇到過這樣的：

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. 

的代碼如下：

<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> 

這有什麼問題嗎？ 我搜索了四周，找不到任何理由爲什麼這種形式不好。

Answer 1

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

這部分。你在引用的參數中有引號。

你可以去周圍，通過使外報價單引號：

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

另一種解決方案：逃離報價HTML風格：

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

"

Answer 2

你ErrorMessage屬性沒有很好地形成：

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

你需要躲避"在屬性值 - 做他們加倍：

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

或者，使用單引號來分隔屬性值：

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

Answer 3

試試這個

<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>