如何在Windows Phone 7中選擇列表框值？

Question

我正在為生日日歷做一個示例應用程序。 在那里我使用三個列表框控件，如日期，月份和年份。 使用listboxitem我在其中添加了數據。

    <ListBox Height="56" HorizontalAlignment="Left" Margin="243,171,0,0" Name="listBox1" VerticalAlignment="Top" Width="207">
            <ListBoxItem Content="01" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="02" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5"/>
            <ListBoxItem Content="03" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="04" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="05" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="06" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="07" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="08" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="09" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="10" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="11" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="12" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="13" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="14" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="15" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="16" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="17" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="18" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="19" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="20" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="21" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="22" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="23" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="24" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="25" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="26" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="27" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5"/>
            <ListBoxItem Content="28" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="29" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="30" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
            <ListBoxItem Content="31" HorizontalContentAlignment="Center" IsSelected="True" VerticalContentAlignment="Center" FontSize="32" FontWeight="Bold" FontFamily="Segoe WP Bold" BorderThickness="5" />
    </ListBox>

所以，我想選擇那些列表框值，我必須添加（例如：24-MAR-1988表示= 24 + 03 + 88）。 我得到了指數值。

int a = int.Parse（（listBox1.SelectedIndex + 1）.ToString（））;

我無法獲得選定的值：

string b = listBox1.SelectedItem.ToString（）; MessageBox.Show（b）中;

Answer 1

我真的建議您使用Windows Phone的Silverlight工具包 。 它有一個DatePicker控件。

如果您確實要使用自己的ComboBox控件，建議您至少使用C＃中可用的DateTime類型，以使事情變得更容易。