关于c#：获取列表框windows phone 7的选定值

Getting selected value of listbox windows phone 7

我正在尝试从 Windows Phone 7 平台上的列表框中获取选定的值。我的列表框中的数据由三列组成，包括 2 个文本块和 1 个图像对象。

我应该如何以我可以获得所选文本(任何文本块中的数据)的方式放置代码？

下面是我定义网格的代码：

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//Define grid column, size

Grid schedule = new Grid();

foreach (var time in timeSplit)
{
timeList = time;
//Column 1 to hold the time of the schedule
ColumnDefinition scheduleTimeColumn = new ColumnDefinition();
GridLength timeGrid = new GridLength(110);
scheduleTimeColumn.Width = timeGrid;
schedule.ColumnDefinitions.Add(scheduleTimeColumn);

//Text block that show the time of the schedule
TextBlock timeTxtBlock = new TextBlock();
timeTxtBlock.Text = time;
//Set the alarm label text block properties - margin, fontsize
timeTxtBlock.FontSize = 28;
timeTxtBlock.Margin = new Thickness(0, 20, 0, 0);
//Set the column that will hold the time of the schedule
Grid.SetColumn(timeTxtBlock, 0);

schedule.Children.Add(timeTxtBlock);
}

foreach (var title in titleSplit)
{
titleList = title;

//Column 2 to hold the title of the schedule
ColumnDefinition scheduleTitleColumn = new ColumnDefinition();
GridLength titleGrid = new GridLength(500);
scheduleTitleColumn.Width = titleGrid;
schedule.ColumnDefinitions.Add(scheduleTitleColumn);

//Text block that show the title of the schedule
TextBlock titleTxtBlock = new TextBlock();

if (title.Length > 10)
{
string strTitle = title.Substring(0, 10) +"....";
titleTxtBlock.Text = strTitle;
}
else
{
titleTxtBlock.Text = title;
}

//Set the alarm label text block properties - margin, fontsize
titleTxtBlock.FontSize = 28;
titleTxtBlock.Margin = new Thickness(60, 20, 0, 0);
//Set the column that will hold the title of the schedule
Grid.SetColumn(titleTxtBlock, 1);

schedule.Children.Add(titleTxtBlock);
//scheduleListBox.Items.Add(schedule);
}

foreach (var category in categorySplit)
{
categoryList = category;

//Column 3 to hold the image category of the schedule
ColumnDefinition categoryImageColumn = new ColumnDefinition();
GridLength catImgnGrid = new GridLength(70);
categoryImageColumn.Width = catImgnGrid;
schedule.ColumnDefinitions.Add(categoryImageColumn);

TextBlock categoryTxtBlock = new TextBlock();
categoryTxtBlock.Text = category;

//set the category image and its properties - margin, width, height, name, background, font size
Image categoryImage = new Image();
categoryImage.Margin = new Thickness(-50, 15, 0, 0);
categoryImage.Width = 50;
categoryImage.Height = 50;
if (category =="Priority")
{
categoryImage.Source = new BitmapImage(new Uri("/AlarmClock;component/Images/exclamination_mark.png", UriKind.Relative));
}
else
if (category =="Favourite")
{
categoryImage.Source = new BitmapImage(new Uri("/AlarmClock;component/Images/star_full.png", UriKind.Relative));
}

Grid.SetColumn(categoryImage, 2);
schedule.Children.Add(categoryImage);
}

scheduleListBox.Items.Add(schedule);
}

列表框选定值的代码：

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string selectedName;

private void scheduleListBox_SelectionChanged_1(object sender, SelectionChangedEventArgs e)
{
//Get the value of selected value in scheduleListBox

if (null != scheduleListBox.SelectedItem)
{
selectedName = (scheduleListBox.SelectedItem as ListBoxItem).Content.ToString();
}
MessageBox.Show("Selected name :" + selectedName);

}

ListBoxItem.Content 是您添加到 ListBox.Items 的 Grid。然后，您可以访问 Grid.Children 以分别添加 TextBlocks。他们的 Text 属性。

以上是正式的回答。另一方面，尽管您的代码包含大量空格，但我不相信它可以工作。例如，您将多个图像(文本块)添加到单个网格单元中。这是故意的吗？我不这么认为。难道您不想使用只有一个日期(是日期吗？)、一个标题和一个图像的列表框？如果是这样，请改变你的逻辑。

本谭！

您可以获得控制选项卡：

示例：

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string a ="abc"
grid myGrid = new grid();
myGrid.Tag = a;

当 selectionChange 你在控件 Grid 中获得 Tab ?