cascading dropdownlist using json

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I am working on MVC, I want to bind cascading dropdownlist, such like "country" and "state", since i have cascading dropdownlist i binds my first dropdownlist for "country" in my Index action and then on selection of "country" in first dropdownlist i want to bind my second dropdownlist for "state", but on action method "country" dropdown will be bid successfully but for state dropdownlist i does not specify any viewbag or viewdata, i have got an error "there is no viewdata for selectlistitem with state key",

so it is necessary to specify a viewbag for state dropdownlist, since i am binding my state dropdownlist using json data so i don't need any viewbag or viewdata.

Thanks

Posted 6-Apr-15 20:26pm

bhaveshgediya

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King Fisher · Answer 1 · 2015-04-06T20:41:00

Solution 1

Check this Article,really nice one

http://www.itorian.com/2013/02/cascading-dropdownlist-in-aspnet-mvc.html[^]

Posted 6-Apr-15 20:41pm

King Fisher

Comments

bhaveshgediya 7-Apr-15 2:46am

If i am using @Html.Dropdownlist Helper instead of <select></select> then is there any solution ?,

King Fisher 7-Apr-15 2:48am

In this article he used HTML helpers Only, Did u see that? Please i try this.

bhaveshgediya 7-Apr-15 3:14am

I see it, he uses HTML helper for state dropdownlist but not district, for district he use html select tag, please reefer it, i don't want to use select tag instead of Helper

@Html.Label("State")
@Html.DropDownList("State", ViewBag.StateName as SelectList, "Select a State", new { id = "State" })
@Html.ValidationMessage("State", "*")

@Html.Label("District")
<select id="District" name="District"></select>
@Html.ValidationMessage("District", "*")