CODEWITHSUNDEEP
xamarinxamarin.forms
sahithi
sahithi

Reputation: 1089

Binding Static variable from other class to listview

Iam trying to bring the values of static variable from the following class 

public class LoginUserId
{
    public static int id { get; set; }
    public static string  username { get; set; } 

}

from here i created another class to get values as following

public class UsersList
{
    public static List<LoginUserId> Names { get; set; }
}

Now i have xaml page as

 <ListView ItemSelected="LoginUserList_OnItemSelected" ItemsSource="{Binding Source={x:Static lacal:UsersList.Names}}" IsVisible="True" >
            <ListView.ItemTemplate>
                <DataTemplate>
                    <ViewCell>
                        <StackLayout>                                
                            <Label Text="{Binding username}" TextColor="Black" FontSize="20" IsVisible="True"></Label>
                        </StackLayout>
                    </ViewCell>
                </DataTemplate>
            </ListView.ItemTemplate>
        </ListView>

At output iam not getting anything just a blank page is appearing,please correct me where i went wrong.

Upvotes: 0

Views: 1525

Answers (2)

ColeX
ColeX

Reputation: 14475

modify your code as below

public class LoginUserId
{
    public  int id { get; set; }
    public  string username { get; set; }

}

public class UsersList
{
    public static List<LoginUserId> Names = new List<LoginUserId>() {
        new LoginUserId{id = 1, username = "No1"},
        new LoginUserId{id = 2, username = "No2"},
    };
}

The List Names must be static , but the property of object in it should not be static , because we must initalize the variable for the model and assign the value for the properties, it's not steady.

Upvotes: 0

Tomislav Erić
Tomislav Erić

Reputation: 215

You can't bind to static variables with the way you did it in your XAML. When you use Text="{Binding username}" your property has to be a non static Property public string username { get; set; } if you want to bind to your static property then you have to use the x:Static way.

<Label Text="{x:Static local:YourViewModel.username}" />

of course you have to add a namespace of your viewModels to the ContentPage

Upvotes: 1

Related Questions