从DataTemplate（WPF）内的文本框中获取值

Question

I´ve just created a datatemplate for a ListBox like that:

 <ListBox Height="150" MinHeight="100" HorizontalAlignment="Left" Name="myListBox"           
                 VerticalAlignment="Top" Width="290" 
                 ItemsSource="{Binding}" SelectionMode="Multiple" Margin="0,18,0,0">
                            <ListBox.ItemTemplate>
                                <DataTemplate>
                                    <StackPanel Orientation="Vertical" >
                                        <StackPanel Orientation="Horizontal">
                                            <CheckBox Name="cbLista" Width="100"  Content="{Binding Path=Nom_estudio}"  IsChecked="{Binding IsChecked, Mode=TwoWay}" 
                                                  Checked="cbLista_Checked" />
                                            <TextBox Name="txbCantidad" Width="100" Margin="0,0,0,5" TextChanged="txbCantidad_TextChanged" />
                                        </StackPanel>

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

And now I can get every object selected in the checkbox, but how can I obtain the text property for the texbox asociated for every checkbox ?

Answer 1

Bind the "Text" property of the TextBox to some property (say MyTextProperty ) on your data object. Then when you get the "SelectedItems" list, you just access this property.

ie:

<TextBox Text="{Binding MyTextProperty}" ... />

Answer 2

Create on more property in your class which has Nom_estudio and IsChecked properties. Then bind that property to TextBox.Text property

        <StackPanel Orientation="Horizontal">
                <CheckBox Name="cbLista" Width="100"  Content="{Binding Path=Nom_estudio}"  IsChecked="{Binding IsChecked, Mode=TwoWay}" 
                                              Checked="cbLista_Checked" />
                 <TextBox Name="txbCantidad" Text="{Binding MYTEXTPROPERTY}" Width="100" Margin="0,0,0,5" TextChanged="txbCantidad_TextChanged" />
                                    </StackPanel>