how to bind data to listbox

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i am binding data to listbox in wp7

here is the code

XML

<ListBox x:Name="list_budget" Width="440">
                        <ListBox.ItemTemplate>
                            <DataTemplate>
                                <TextBlock Name="txtname" Text="{Binding category}"></TextBlock>

                            </DataTemplate>
                        </ListBox.ItemTemplate>
                    </ListBox>

//class function

C#

 public List<string> jinal;

        public void  budgetcategorywise()
        {

            var q = from shoppingItem p in db.Item1
                    group p by new { p.category_name } into g
                    select new { category = g.Key, total = g.Sum(p => p.total_amt) }.ToString();

          jinal = q.ToList();
    }


//coding

 list_budget.ItemsSource = App.Viewmod.jinal;

now,the error is query is ok result is perfact but i am not able to bind the data to listbox.

Posted 2-Jun-12 1:48am

jinalshah9999

Updated 2-Jun-12 1:56am

P.Salini

v3

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Oleksandr Kulchytskyi · Answer 1 · 2012-06-02T02:29:00

Hi.
First of all add in ListBox definition of ItemSource property.See below:

XML

<ListBox x:Name="list_budget" ItemSource="{Binding}" Width="440">
                        <ListBox.ItemTemplate>
                            <DataTemplate>
                                <TextBlock Name="txtname" Text="{Binding category}"></TextBlock>

                            </DataTemplate>
                        </ListBox.ItemTemplate>
                    </ListBox>

And alos why you declared variable jinal as:

C#

List<string></string>

????

I suppose, that it must be

C#

List<resultset> jinal</resultset>

, where ResulttSet could be represent as follow:

C#

public class ResulSet
{
public string Name {get; set;}
public int Total {get; set;}
}

Also, it would be more prefarable to use ObservableCollection instead of List!!