在 Windows Phone 8.1 上添加控件时提高性能

Question

在向网格添加控件时，我遇到了性能问题。当我设置添加 100 个控件时，它在 Windows Phone 中需要将近 2 秒，它会冻结 UI。有没有其他方法可以将自定义控件添加到网格？这是我的代码：

private void generateGrid(int size)
{
    int buttonsInColumn = 5; 
    SmallButtonControl smallButton;
    buttonEdge = screenWidth / buttonsInColumn;

    for (int i = 0; i < buttonsInColumn; i++)
        grChoolseBoard.ColumnDefinitions.Add(new ColumnDefinition() { Width = GridLength.Auto });
    for (int j = 0; j < size / buttonsInColumn; j++)
        grChoolseBoard.RowDefinitions.Add(new RowDefinition() { Height = GridLength.Auto });

    for (int j = 0; j < size / buttonsInColumn; j++)
    {
        for (int i = 0; i < buttonsInColumn; i++)
        {
            smallButton = new SmallButtonControl() { Width = buttonEdge, Height = buttonEdge };
            smallButton.Text = (j * buttonsInColumn + i + 1).ToString();
            smallButton.ButtonBackground = getColorAndEnableState(j * buttonsInColumn + i + 1, _level+1,ref smallButton); 
            smallButton.SetValue(Grid.ColumnProperty, i);
            smallButton.SetValue(Grid.RowProperty, j);
            grChoolseBoard.Children.Add(smallButton as SmallButtonControl);
            smallButton.Tapped += new TappedEventHandler(GoToBoard_Tapped);
        }
    }
}

Answer 1

在 C# 窗体中，为避免在添加许多控件时出现延迟，SuspendLayout(); 在添加控件时忽略更新 UI，然后ResumeLayout(); 向 UI 发出信号以再次开始显示更改。我不确定 Windows Phone 开发是否具有相同的功能。