How to stop read call to controller if e.filter is null (HTML Razor syntax)












0















While Kendo Grid development (using HTML Razor syntax , MVC, Jquery and JavaScript) if my filters are empty I don't want to call the controller or Read the data. How I can do that?
here is my code snippet
Razor Code snippet--






 Read(read => read.Action("Action", "Controller").Data("getFilters"))





JSCode






 getFilters= function (e) 
{
if (e.filter === null)
//do nothing and stop
else
return { filters }
}





Help appreciated.



Thanks in advance.










share|improve this question



























    0















    While Kendo Grid development (using HTML Razor syntax , MVC, Jquery and JavaScript) if my filters are empty I don't want to call the controller or Read the data. How I can do that?
    here is my code snippet
    Razor Code snippet--






     Read(read => read.Action("Action", "Controller").Data("getFilters"))





    JSCode






     getFilters= function (e) 
    {
    if (e.filter === null)
    //do nothing and stop
    else
    return { filters }
    }





    Help appreciated.



    Thanks in advance.










    share|improve this question

























      0












      0








      0








      While Kendo Grid development (using HTML Razor syntax , MVC, Jquery and JavaScript) if my filters are empty I don't want to call the controller or Read the data. How I can do that?
      here is my code snippet
      Razor Code snippet--






       Read(read => read.Action("Action", "Controller").Data("getFilters"))





      JSCode






       getFilters= function (e) 
      {
      if (e.filter === null)
      //do nothing and stop
      else
      return { filters }
      }





      Help appreciated.



      Thanks in advance.










      share|improve this question














      While Kendo Grid development (using HTML Razor syntax , MVC, Jquery and JavaScript) if my filters are empty I don't want to call the controller or Read the data. How I can do that?
      here is my code snippet
      Razor Code snippet--






       Read(read => read.Action("Action", "Controller").Data("getFilters"))





      JSCode






       getFilters= function (e) 
      {
      if (e.filter === null)
      //do nothing and stop
      else
      return { filters }
      }





      Help appreciated.



      Thanks in advance.






       Read(read => read.Action("Action", "Controller").Data("getFilters"))





       Read(read => read.Action("Action", "Controller").Data("getFilters"))





       getFilters= function (e) 
      {
      if (e.filter === null)
      //do nothing and stop
      else
      return { filters }
      }





       getFilters= function (e) 
      {
      if (e.filter === null)
      //do nothing and stop
      else
      return { filters }
      }






      jquery kendo-ui kendo-grid kendo-asp.net-mvc






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Dec 28 '18 at 19:26









      Chandra MaralChandra Maral

      186




      186
























          2 Answers
          2






          active

          oldest

          votes


















          0














          You could stop the request in the DataSource's RequestStart event:





          function requestStart(e) {
          if (!this.filter()) {
          e.preventDefault();
          }
          }


          You might want to extend this snippet to inform the user that no new data were loaded due to the empty filter. Otherwise the user might be confused why the result did not change if he submits an empty filter.






          share|improve this answer
























          • This is also good choice . Thanks Carsten Franke

            – Chandra Maral
            Jan 8 at 20:42





















          0














          Here is how I did



          Added event for on filter






          Filter("onFiltering")





          JS code






          function onFiltering()
          {
          if (e.filter === null)
          {
          e.preventDefault();
          //display pop up for confirmation that no filters are applied and user still want to continue please select Yes
          //if Yes then

          $("#Grid").data("kendoGrid").dataSource.read()

          }
          }





          Thanks everyone and appreciate your answers/comments.



          Happy coding






          share|improve this answer























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            2 Answers
            2






            active

            oldest

            votes








            2 Answers
            2






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            0














            You could stop the request in the DataSource's RequestStart event:





            function requestStart(e) {
            if (!this.filter()) {
            e.preventDefault();
            }
            }


            You might want to extend this snippet to inform the user that no new data were loaded due to the empty filter. Otherwise the user might be confused why the result did not change if he submits an empty filter.






            share|improve this answer
























            • This is also good choice . Thanks Carsten Franke

              – Chandra Maral
              Jan 8 at 20:42


















            0














            You could stop the request in the DataSource's RequestStart event:





            function requestStart(e) {
            if (!this.filter()) {
            e.preventDefault();
            }
            }


            You might want to extend this snippet to inform the user that no new data were loaded due to the empty filter. Otherwise the user might be confused why the result did not change if he submits an empty filter.






            share|improve this answer
























            • This is also good choice . Thanks Carsten Franke

              – Chandra Maral
              Jan 8 at 20:42
















            0












            0








            0







            You could stop the request in the DataSource's RequestStart event:





            function requestStart(e) {
            if (!this.filter()) {
            e.preventDefault();
            }
            }


            You might want to extend this snippet to inform the user that no new data were loaded due to the empty filter. Otherwise the user might be confused why the result did not change if he submits an empty filter.






            share|improve this answer













            You could stop the request in the DataSource's RequestStart event:





            function requestStart(e) {
            if (!this.filter()) {
            e.preventDefault();
            }
            }


            You might want to extend this snippet to inform the user that no new data were loaded due to the empty filter. Otherwise the user might be confused why the result did not change if he submits an empty filter.







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Jan 2 at 6:40









            Carsten FrankeCarsten Franke

            5691421




            5691421













            • This is also good choice . Thanks Carsten Franke

              – Chandra Maral
              Jan 8 at 20:42





















            • This is also good choice . Thanks Carsten Franke

              – Chandra Maral
              Jan 8 at 20:42



















            This is also good choice . Thanks Carsten Franke

            – Chandra Maral
            Jan 8 at 20:42







            This is also good choice . Thanks Carsten Franke

            – Chandra Maral
            Jan 8 at 20:42















            0














            Here is how I did



            Added event for on filter






            Filter("onFiltering")





            JS code






            function onFiltering()
            {
            if (e.filter === null)
            {
            e.preventDefault();
            //display pop up for confirmation that no filters are applied and user still want to continue please select Yes
            //if Yes then

            $("#Grid").data("kendoGrid").dataSource.read()

            }
            }





            Thanks everyone and appreciate your answers/comments.



            Happy coding






            share|improve this answer




























              0














              Here is how I did



              Added event for on filter






              Filter("onFiltering")





              JS code






              function onFiltering()
              {
              if (e.filter === null)
              {
              e.preventDefault();
              //display pop up for confirmation that no filters are applied and user still want to continue please select Yes
              //if Yes then

              $("#Grid").data("kendoGrid").dataSource.read()

              }
              }





              Thanks everyone and appreciate your answers/comments.



              Happy coding






              share|improve this answer


























                0












                0








                0







                Here is how I did



                Added event for on filter






                Filter("onFiltering")





                JS code






                function onFiltering()
                {
                if (e.filter === null)
                {
                e.preventDefault();
                //display pop up for confirmation that no filters are applied and user still want to continue please select Yes
                //if Yes then

                $("#Grid").data("kendoGrid").dataSource.read()

                }
                }





                Thanks everyone and appreciate your answers/comments.



                Happy coding






                share|improve this answer













                Here is how I did



                Added event for on filter






                Filter("onFiltering")





                JS code






                function onFiltering()
                {
                if (e.filter === null)
                {
                e.preventDefault();
                //display pop up for confirmation that no filters are applied and user still want to continue please select Yes
                //if Yes then

                $("#Grid").data("kendoGrid").dataSource.read()

                }
                }





                Thanks everyone and appreciate your answers/comments.



                Happy coding






                Filter("onFiltering")





                Filter("onFiltering")





                function onFiltering()
                {
                if (e.filter === null)
                {
                e.preventDefault();
                //display pop up for confirmation that no filters are applied and user still want to continue please select Yes
                //if Yes then

                $("#Grid").data("kendoGrid").dataSource.read()

                }
                }





                function onFiltering()
                {
                if (e.filter === null)
                {
                e.preventDefault();
                //display pop up for confirmation that no filters are applied and user still want to continue please select Yes
                //if Yes then

                $("#Grid").data("kendoGrid").dataSource.read()

                }
                }






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Jan 2 at 20:33









                Chandra MaralChandra Maral

                186




                186






























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