MVC Controller Bullet Box

To refresh the interface after the first type of frame is successful

[HttpPost] PublicActionResult ADD (Maticsoft.Model.Project.ProjectMoneyPlan model) {model. Money=NewMaticsoft.Model.Struct.DRMB (Model. Money). ToDouble ().               ToString (); Maticsoft.BLL.User.LoginUser Login=NewMaticsoft.BLL.User.LoginUser (); Model. Creater=Login.               Email; Try              {                   if(BLL. Exist ("Pro_moneyplan","where procode= '"+ model. Procode +"'","Procode") && BLL. Exist ("Pro_moneyplan","where year="+ model. Year," Year") && BLL. Exist ("Pro_moneyplan","where Month="+ model. Month,"Month"))                   {                       ///Bullet Box                   stringScript = String.Format ("<script>alert (' Data already exists! '); location.href= ' {0} ' </script>", Url.action ("ADD")); returnContent (script,"text/html"); }                   Else{BLL.                       ADD (model); returnView ("List"); }               }               Catch(Exception ex) {return NewMaticsoft.BLL.Error ().               Doerror (ex); }           }   

The second type of box does not refresh the interface after success:

[HttpPost] PublicActionResult ADD (Maticsoft.Model.Project.ProjectMoneyPlan model) {model. Money=NewMaticsoft.Model.Struct.DRMB (Model. Money). ToDouble ().               ToString (); Maticsoft.BLL.User.LoginUser Login=NewMaticsoft.BLL.User.LoginUser (); Model. Creater=Login.               Email; Try              {                   if(BLL. Exist ("Pro_moneyplan","where procode= '"+ model. Procode +"'","Procode") && BLL. Exist ("Pro_moneyplan","where year="+ model. Year," Year") && BLL. Exist ("Pro_moneyplan","where Month="+ model. Month,"Month") ) {viewdata["Proname"] = Selecopption.getopption ("Pro_b","","Code,name");//Get project nameviewdata[" Year"] =GetYear (); viewdata["Month"] =GetMonth (); ///Bullet BoxViewbag.isexist =false; returnView (); }                   Else{BLL.                       ADD (model); returnView ("List"); }               }               Catch(Exception ex) {return NewMaticsoft.BLL.Error ().               Doerror (ex); }           }   

Front desk:

@if (Viewbag.isexist = = False)   {       <type= "Text/javascript">           alert ( " the data you want to add already exists!  ")       </script>   

MVC Controller Bullet Box