MVC Bug Binding Collection Of DropDownList?

Mar 25, 2011

I have a view with 1 dropdown generated from Model property and 3 additional dropdowns that are generated from array property

[code]....

The controller method initializes AgentTypeListItems collection + sets default values for AgentType dropdown and 3 dropdowns for the collection:

[code]....

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but what if I wanted to bind to collection items within the ViewModel. I'm not sure if it's possible. Here's what I have:

My ViewModel:

[code]....

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i'm using a strongly typed view with a custom viewmodel. this viewmodel contains a collection of books.

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[Code]....

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[Code]....

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[Code]....

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[Code]....

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using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Data.Odbc;
using System.Data.SqlClient;....

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at _Default.rebind() in c:Documents and SettingsaMy DocumentsVisual Studio 2008WebSites oolbar1Default.aspx.cs:line 32

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I am binding dropdownlist using entity framework in mvc4 while I run the application getting the following error

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I have 2 dropdownlist

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when users select Item from ddlstate according to their selected Item from ddlstate,ddlcity bind from database 

below is ddlstate_onselectedindexchanged event

protected void ddlstate_OnSelectedIndexChanged(object sender, EventArgs e) {
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[code]....

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I have 2 dropdown lists on a WebForm. One of them is populated in the page's Page_Load event. This oneworks fine with the following code.

[Code]....

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[Code]....

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