CODEWITHSUNDEEP
c#windows-phone-8checkbox
user3820387
user3820387

Reputation: 23

How to update the checkbox in wp8 app

In my wp8 app, I have check box which is under a listbox.

Here is the XAML code:

 <ListBox Name="URLListBox"  Grid.Row="2"  >
            <ListBox.ItemTemplate>
                <DataTemplate>
                    <Grid   >
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition/>
                            <ColumnDefinition Width="400"/>

                        </Grid.ColumnDefinitions>

                            <TextBlock   Grid.Column="1" Tag="{Binding b1Tag}" Tap="surenameTap"   x:Name="surename" FontFamily="Consolas"  FontSize="25" Text="{Binding text}"   VerticalAlignment="Center" HorizontalAlignment="Center" Margin="60,0,0,0"/>


                        <CheckBox IsEnabled="False"  BorderThickness="0" BorderBrush="DarkGreen"  Background="DarkGreen"  Grid.Column="0" x:Name="checkbox" IsChecked="{Binding file}"   ></CheckBox>

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

I want to update the checkbox while program is working. The checkbox shows if the data is downloaded or not.

I use BackgroundTransferRequest to download the file. I want the checkbox to be checked when download is finished.

Actually I have class that determines which files are downloaded and I bind it with the checkbox, but it changes the checkbox when I enter the page. That is I should go to previous menu and restart the page that contains checkboxes, then it shows which checkboxes are checked, but I want that when I am in page.

Here is the class that binds the checkbox:

lnk = new linkname();
URLListBox.ItemsSource = lnk.obj();

Upvotes: 1

Views: 204

Answers (1)

Pradeep AJ- Msft MVP
Pradeep AJ- Msft MVP

Reputation: 600

Make sure that you have set the DataContext and Implemented InotifyPropertyChanged Interface, Only when You implement the interface the property will get updated.

And also you have to add Mode="TwoWay" when binding, something like this

IsChecked="{Binding file, Mode="TwoWay"}"

A quick sample is here

Upvotes: 1

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