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POSession state serialization
 

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    <p>i have problem with serialization my session object. What i'm doing wrong? I tried serialize that object with XmlSerializer and BinaryFormatter and there was no problem.</p> <p>When i try save the basket object to the session i'll get error: </p> <blockquote> <p>Unable to serialize the session state. In 'StateServer' and 'SQLServer' mode, ASP.NET will serialize the session state objects, and as a result non-serializable objects or MarshalByRef objects are not permitted. The same restriction applies if similar serialization is done by the custom session state store in 'Custom' mode.</p> </blockquote> <p>here is the object:</p> <pre><code>[Serializable] public class Basket { #region Fields (2) [NonSerialized] private CMS.CmsEntity db; private List&lt;ShopOrderItem&gt; ShopOrderItems; #endregion Fields #region Properties (2) public bool IsEmpty { get { return (this.Items.Count == 0); } } public List&lt;ShopOrderItem&gt; Items { get { if (this.ShopOrderItems == null) { this.ShopOrderItems = new List&lt;ShopOrderItem&gt;(); } return this.ShopOrderItems; } set { this.ShopOrderItems = value; } } #endregion Properties #region Delegates and Events (1) // Events (1)  public event EventHandler CartItemsChanged; #endregion Delegates and Events #region Methods (9) public int CountItems() { return this.ShopOrderItems.Sum(s =&gt; s.Quantity); } public decimal CountTotalAmount() { ... } public decimal CountTotalAmountWithoutVAT() { ... } public CMS.ProductVariant GetProductVariantById(int id) { ... } #region AddProductToCart public void AddProductToCart(int productVariantId, int quantity) { AddProductToCart(GetProductVariantById(productVariantId), quantity); } public void AddProductToCart(ProductVariant productVariant, int quantity) { ... } #endregion #region RemoveProductFromCart public void RemoveProductFromCart(int productVariantId) { RemoveProductFromCart(GetProductVariantById(productVariantId)); } public void RemoveProductFromCart(ProductVariant productVariant) { .. } #endregion #region UpdateProductQuantity public void UpdateProductQuantity(int variantId, int quantity, bool isRelative) { UpdateProductQuantity(GetProductVariantById(variantId), quantity, isRelative); } public void UpdateProductQuantity(ProductVariant productVariant, int quantity, bool isRelative) { ... } #endregion #endregion Methods} </code></pre> <p>Code that manipulates with session:</p> <pre><code>public static class CurrentSession { #region public static Basket Basket public static Basket Basket { get { Basket c = SessionHelper.GetSessionObject("UserCart") as Basket; if (c == null) { c = new Basket(); SessionHelper.SetSessionObject("UserCart", c); // If i comment this line, exception is not thrown } return c; } set { SessionHelper.SetSessionObject("UserCart", value); } } #endregion } </code></pre> <p>if i use InProc Session State, it works. So it must be in serialization process</p>
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