asp.net 按钮提交前锁定按钮

客户端:
<asp:Button ID="btnSubmit" runat="server" Text="提 交" class="btn2" OnClick="btnSubmit_Click"
OnClientClick="this.disabled=true;" UseSubmitBehavior="false"/> 
在服务器端:
        if(something error before insert  to database){
            Response.Write(" error");
            this.btnSubmit.Enabled = true;//解除锁定
        }
        else{
            SubmitToDB();
        }
关键点: UseSubmitBehavior

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