Required+regular验证

Question

 <asp:TextBox ID="Textboxtotalamount" 
     OnTextChanged="AmountChanged" 
     Width="90px" 
     AutoPostBack="true" 
     runat="server"></asp:TextBox>

 <asp:RequiredFieldValidator ID="RequiredFieldValidator" 
     runat="server" 
     ControlToValidate="Textboxtotalamount" 
     SetFocusOnError="True" 
     ValidationGroup="val">*</asp:RequiredFieldValidator>

 <asp:RegularExpressionValidator ID="RegularExpressionValidator1" 
     runat="server" 
     ControlToValidate="Textboxtotalamount" 
     ValidationExpression="^[-+]?[1-9]\d{0,13}(\.\d{1,3})?%?$" 
     SetFocusOnError="True">F</asp:RegularExpressionValidator>

在上面的代码中可以验证文本框中的字符，如果我在文本框中键入(字符)，则调用" ontextchanged“事件....suppose同时显示OnTextChanged事件也称为error ....i ....i ve to stop OnTextChanged event when regularexpression引发......请帮帮忙

Answer 1

尝尝这个

<asp:TextBox ID="Textboxtotalamount" OnTextChanged="AmountChanged" Width="90px" AutoPostBack="true"
            CausesValidation="true" ValidationGroup="val" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredFieldValidator" runat="server" ControlToValidate="Textboxtotalamount"
            SetFocusOnError="True" ValidationGroup="val">*</asp:RequiredFieldValidator>
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="Textboxtotalamount" ValidationGroup="val"
            ValidationExpression="^[-+]?[1-9]\d{0,13}(\.\d{1,3})?%?$" SetFocusOnError="True">F</asp:RegularExpressionValidator>

我已经添加了。TextBox的CausesValidation=为“true”，ValidationGroup=为“val”。

和ValidationGroup="val“连接到RegularExpressionValidator

现在，只有当"val“组中的所有验证器都成功时，OnTextChanged才会触发