这是我在WP7中的第一个程序,所以我有一些问题。
我正在尝试使用另一种方法购买的对象列表填充网格。这是我到目前为止所做的:
public partial class MainPage : PhoneApplicationPage
{
private List<Row> lsResult;
private Grid myGrid = new Grid();
private int i = 0;
// Constructor
public MainPage()
{
InitializeComponent();
ColumnDefinition colData = new ColumnDefinition();
ColumnDefinition colOcorrencia = new ColumnDefinition();
ColumnDefinition colSituacao = new ColumnDefinition();
myGrid.ColumnDefinitions.Add(colData);
myGrid.ColumnDefinitions.Add(colOcorrencia);
myGrid.ColumnDefinitions.Add(colSituacao);
myGrid.ShowGridLines = true;
SolidColorBrush myBrush = new SolidColorBrush(Colors.White);
myGrid.Background = myBrush;
gridResult = myGrid;
}
private void button1_Click(object sender, RoutedEventArgs e)
{
i = 0;
lsResult = null;
lsResult = Rastrear.Busca(txtNumber.Text);
foreach (Row r in lsResult)
{
RowDefinition rNewRow = new RowDefinition();
myGrid.RowDefinitions.Add(rNewRow);
TextBlock lblData = new TextBlock();
lblData.Text = r.Data.ToString();
lblData.HorizontalAlignment = HorizontalAlignment.Center;
lblData.VerticalAlignment = VerticalAlignment.Center;
Grid.SetColumnSpan(lblData, 1);
Grid.SetRow(lblData, i);
TextBlock lblOcorrencia = new TextBlock();
lblOcorrencia.Text = r.Ocorrencia.ToString() ;
Grid.SetColumnSpan(lblOcorrencia, 2);
Grid.SetRow(lblOcorrencia, i);
TextBlock lblSituacao = new TextBlock();
lblSituacao.Text = r.Situacao.ToString();
Grid.SetColumnSpan(lblSituacao, 3);
Grid.SetRow(lblSituacao, i);
i++;
myGrid.Children.Add(lblData);
myGrid.Children.Add(lblOcorrencia);
myGrid.Children.Add(lblSituacao);
}
gridResult = myGrid;
}
}
方法Buscar()正在按原样返回列表,但是当我点击按钮时它没有做任何事情,甚至连构造函数上的paint都变为白色。
提前致谢
答案 0 :(得分:1)
你在代码背后做了一些非常阴暗的东西,我以前常常看到,应该在xaml中完成。改变这个
gridResult = myGrid;
到
gridResult.Children.Add(myGrid);
我认为你不能像这样更改静态UI元素的引用。