[英]How to allow limited special characters in regular expression validation only in c#?
I am using the below asp.net c# Regular expression validation 我正在使用以下asp.net c#正则表达式验证
<asp:TextBox ID="txtName" runat="server" TabIndex="0"></asp:TextBox>
<asp:RequiredFieldValidator CausesValidation="true" Cssclass="state-error" SetFocusOnError="true" ID="valName" ValidationGroup="reg" Display="Dynamic"
runat="server" ControlToValidate="txtName" ErrorMessage="Name is required"></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator CssClass="error-state" ID="RegularExpressionValidator1" runat="server" ControlToValidate="txtName"
ValidationExpression="[a-zA-Z ]*$" ErrorMessage="Special characters not allowed." />
Now I want that it should allow '-', '(', ')' characters only... Please help !!! 现在,我希望它只允许使用'-','(',')'字符...请帮助!
This should work as you require: 这应该可以按照您的要求工作:
<asp:TextBox ID="txtName" runat="server" TabIndex="0"></asp:TextBox>
<asp:RequiredFieldValidator CausesValidation="true" Cssclass="state-error" SetFocusOnError="true" ID="valName" ValidationGroup="reg" Display="Dynamic"
runat="server" ControlToValidate="txtName" ErrorMessage="Name is required"></asp:RequiredFieldValidator>
<asp:RegularExpressionValidator CssClass="error-state" ID="RegularExpressionValidator1" runat="server" ControlToValidate="txtName"
ValidationExpression="[a-zA-Z\s()\-]*$" ErrorMessage="Special characters not allowed." />
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