Within my form, I have multiple dropdown lists. Whenever a user selects an option from one of these dropdowns, I want that value to be saved in the backend database. To avoid reloading the page, I believe using Ajax is the best approach, but I need assistance with implementing it.
How can I automatically send the selected dropdown value to the server-side through an Ajax call without refreshing the page? Should I create a separate form for each dropdown list to update them individually? I am working with JQuery and JQuery Mobile on top of ASP MVC.
As an example, here is some code illustrating the current setup:
public class ColorViewModel
{
public ColorViewModel()
{
Options = new List<string>(){ "red", "blue", "green" };
}
public string Value { get; set; }
public List<string> Options { get; set; }
}
View:
@model IEnumerable<ColorViewModel>
@using (Html.BeginForm())
{
foreach(var item in Model)
{
Html.DropDownListFor(m => m.Value, Model.Options)
}
<input type="submit" value="Save">
}
I aim to eliminate the need for a submit button in the form and handle all data submission when the user selects an option (which I assume can be accomplished using JavaScript).