The root of the problem is that you are unknowingly using the Frame class from the ttk package rather than from the tkinter package. The one from ttk does not support the background option. This is the main reason why you shouldn’t do wildcard imports — you can overwrite the definition of classes and commands. … Read more
WinForm: private void button1_Click(object sender, EventArgs e) { button2.BackColor = Color.Red; } WPF: private void button1_Click(object sender, RoutedEventArgs e) { button2.Background = Brushes.Blue; }
Important: Make sure you’re using System.Windows.Media.Brush and not System.Drawing.Brush They’re not compatible and you’ll get binding errors. The color enumeration you need to use is also different System.Windows.Media.Colors.Aquamarine (class name is Colors) <— use this one System.Drawing.Color.Aquamarine (class name is Color) If in doubt use Snoop and inspect the element’s background property to look for … Read more
One Line: It seems some of your activity variables were freed from memory as Android OS needed memory for the Facebook application. Explanation: When an application in foreground needs more memory than that is available, Android frees some memory from the apps that are running in background. Foreground tasks always have higher priority than background … Read more
Here is some links which can help you in this link 1 : Similar SO question link 2 : Red-Folder Blog link 3 : BackgroundService Plugin in GitHub Update link 4 : Phonegap background service on iOS4 link 5 : phonegap background service in iOS5
Unfortunately for the TextBox control, it appears like it’s not as simple as just adding a trigger and changing the Background color when the trigger condition is true. You have to override the entire ControlTemplate to achieve this. Below is one example on how you might do this: <Window x:Class=”StackOverflow.MainWindow” xmlns=”http://schemas.microsoft.com/winfx/2006/xaml/presentation” xmlns:x=”http://schemas.microsoft.com/winfx/2006/xaml” Title=”MainWindow” Height=”350″ Width=”525″> … Read more
Your problem is that the repeat-y is going to fill the whole height, no matter where you position it initially. Thus, it overlaps your top and bottom. One solution is to push the repeating background into a pseudo element positioned off of the container by the 12px at the top and bottom. The result can … Read more
There is no built-in method, but there are several ways to do it. The most straightforward way that I can think of at the moment is: Create a subclass of JComponent. Override the paintComponent(Graphics g) method to paint the image that you want to display. Set the content pane of the JFrame to be this … Read more
Keep in mind that a CSS gradient is actually an image value, not a color value as some might expect. Therefore, it corresponds to background-image specifically, and not background-color, or the entire background shorthand. Essentially, what you’re really trying to do is layering two background images: a bitmap image over a gradient. To do this, … Read more