StackPanel的保證金問題

Question

當我從頂部設置Margin到15爲TextBox：

x.Margin = new Thickness(100, 15, 0, 0); 

這工作得很好，一切就OK了，但後來我想打一個ComboBox也出現從15px頂部 - 它不起作用。

y.Margin = new Thickness(0, 15, 0, 0); 

這是按鈕的代碼我點擊創建組合框和文本框：

int t = 0; 
private void btnAddTitle_Click(object sender, RoutedEventArgs e) 
{ 
     TextBox x = new TextBox(); 
     x.Name = "Title" + t; 
     x.Text = "Title..."; 
     x.FontWeight = FontWeights.Bold; 
     x.FontStyle = FontStyles.Italic; 
     x.TextWrapping = TextWrapping.Wrap; 
     x.Height = 25; 
     x.Width = 200; 
     x.HorizontalAlignment = System.Windows.HorizontalAlignment.Left; 
     x.Margin = new Thickness(100, 15, 0, 0); 
     spStandard.Children.Add(x); 


     ComboBox y = new ComboBox(); 
     y.Name = "Combo" + t; 
     y.Text = (t + 1).ToString(); 
     y.Height = 25; 
     y.Width = 45; 
     y.HorizontalAlignment = System.Windows.HorizontalAlignment.Left; 
     y.Margin = new Thickness(0, 15, 0, 0); 
     spStandard.Children.Add(y); 

     t++; 
} 

這裏是當我運行該應用程序會發生什麼了一張圖片 - 它顯示了組合框變放：

Answer 1

這裏是你的問題的解決方案，你不應該在代碼中創建控件後面，但它會完成這項工作：

int t = 0; 
private void btnAddTitle_Click(object sender, RoutedEventArgs e) 
{ 
    //a new stackpanel is used to arrange items Horizontally for each line 
    StackPanel sp = new StackPanel() { Orientation = Orientation.Horizontal }; 

    TextBox x = new TextBox(); 
    x.Name = "Title" + t; 
    x.Text = "Title..."; 
    x.FontWeight = FontWeights.Bold; 
    x.FontStyle = FontStyles.Italic; 
    x.TextWrapping = TextWrapping.Wrap; 
    x.Height = 25; 
    x.Width = 200; 
    x.Margin = new Thickness(0, 15, 0, 0); 

    ComboBox y = new ComboBox(); 
    y.Name = "Combo" + t; 
    y.Text = (t + 1).ToString(); 
    y.Height = 25; 
    y.Width = 45; 
    y.Margin = new Thickness(0, 15, 0, 0); 

    sp.Children.Add(y); 
    sp.Children.Add(x);   

    spStandard.Children.Add(sp); 

    t++; 
}