![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
1 <asp:TextBox ID="tbP_newYear" MaxLength="3" runat="server" onkeyup="this.value=this.value.replace(/\D/g,'')"
2 onafterpaste="this.value=this.value.replace(/\D/g,'')"></asp:TextBox>
1 <asp:TextBox ID="tbP_newYear" MaxLength="3" runat="server" onkeyup="this.value=this.value.replace(/\D/g,'')"
2 onafterpaste="this.value=this.value.replace(/\D/g,'')"></asp:TextBox>