日期输入框JS

 

            <script>

                   function onku1(obj){

             var txt = obj.value;        

         //數字鍵

         //alert(event.keyCode);

                if(event.keyCode > 47 && event.keyCode < 58 || event.keyCode > 95 && event.keyCode < 106 || event.keyCode == 8){

                   //不大于個字符        

                   if(txt.length > 16){

                                     obj.value = obj.value.substr(0, 16);

                   }

         }else{

                   //alert(event.keyCode);

                   //document.execCommand("Undo");               

                   obj.value = txt.substr(0, txt.length - 1);

                   return false;                           

         }

         //年

         if(txt.length == 4){

                   obj.value += "-";

         }

         //月

         if(txt.length == 7){

                    var month = txt.substr(5, 2);                                    

                    if(month > 12 || month < 1){

                                     obj.value = txt.substr(0, 5);

                                     return false;

                            }

                            obj.value += "-";                            

         }      

         //日

         if(txt.length == 10){

                   var day = txt.substr(8, 2);

                   if(day > 31 || day < 1){

                            obj.value = txt.substr(0, 8);

                            return false;

                   }

                   //obj.value += " ";

         }

        

}

                           </script>     

         <asp:TextBox ID="TextBox2" onkeyup="onku1(this)"  Width="80px" runat="Server"></asp:TextBox>

转载于:https://www.cnblogs.com/linpengfeixgu/articles/1214138.html