Question

I am using asp.net mvc3. I want to pass an array from view to the controller using parameterMap as shown below. In my view:

     parameterMap:
            function (data, options) {
               if (options === "read") {
               sessionStorage.setItem("value","array");
               val = sessionStorage.getItem("value"); // contains array
               return { model: JSON.stringify(val) }; //passing array to controller
                }
            }

In controller:

  public ActionResult SearchDetails( string model)     
  {
     var query = (from ......).where();//want to compare array values in controller
        
  }

but I am not able to retrieve those values in the controller. How can I retrieve these array of values in my controller without using looping statements?

My array contains only integer values (ids), while debugging the when I put cursor at the parameter of action method the values are coming in ""[{\"id\":1},{\"id\":2}]"" format. How can I use this array of values in my WHERE clause of my query?

Answer 1

if you are bound and determined to stick with the string input, I would think a call to Split would work. However, it would be much easier if you changed from bringing it in as a string to just bringing in the model. Have you tried something like:

  public ActionResult SearchDetails( model model)     
  {
     var query = (from ......).where();//want to compare array values in controller

  }

are you trying to do something equivalent to a SQL IN? If that is the case then use .Contains in your query. For example:

public ActionResult SearchDetails(model model)
{
    var query = from d in context.data
                where model.Contains(d.id)
                select d;
}