CODEWITHSUNDEEP
c#asp.netgridviewdatasource
Vinzcent
Vinzcent

Reputation: 1448

Bind Property of Property to GridView

Hey,
I would like to show the title and the price of a movie in my Gridview. The title and price are properties from the class Movie and Movie is a property of the class CartItem.

Here is the Code of my gridview

<asp:GridView ID="gvShoppingCart" runat="server" AutoGenerateColumns="False">
<Columns>
     <asp:BoundField DataField="Title" HeaderText="Title" />
     <asp:BoundField DataField="Price" HeaderText="Price" />
</Columns>
</asp:GridView>

The DataSource of my gridview is List<CartItem>.

This are the classes

public class CartItem
{
    private Movie _movieInCart;
    private int _Count;

    public CartItem()
    { }

    public CartItem(Movie movie, int count)
    {
        _movieInCart = movie;
        _count= count;
    }


    public Film MovieInCart
    {
        get { return _movieInCart; }
        set { _movieInCart = value; }
    }

    public int Count
    {
        get { return _count; }
        set { _count = value; }
    }

    public double getSubTotal()
    {
        return _movieInCart.Price * _count;
    }
}


public class Movie
{
     private string _title;
     private double _price;

     public string Title
     {
         get { return _title; }
         set { _title= value; }
     }

     public double Price
     {
         get { return _price; }
         set { _price= value; }
     }     

//More properties here 
}

Apparently the GridView shows only first level properties, but how do I show these second level properties.

Many thanks, Vincent

Upvotes: 1

Views: 4361

Answers (1)

Colin Thomsen
Colin Thomsen

Reputation: 1806

I think you have two options:

  1. Add properties to CartItem for Title and Price which delegate to the movie object.
  2. Switch to use TemplateField instead of BoundField.

Option 1:

public string Title
{
   return _movieInCart != null ? _movieInCart.Title : null;
}

Option 2: (see reference)

<asp:TemplateField HeaderText="Title">
  <ItemTemplate>
    <asp:Label
      runat="server"
      Text='<%# Bind("MovieInCart.Title") %>'>
    </asp:Label>
  </ItemTemplate>
</asp:TemplateField>

Upvotes: 2

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