![]() Return Color.FromArgb(systemColor.A, systemColor.R, systemColor.G, systemColor. Public static Color ColorFromName(string colorName) If (double.TryParse(parameters, NumberStyles.AllowDecimalPoint,, out dblTemp))Ĭolor = new SolidColorBrush(colorIfTrue) Ĭolor = new SolidColorBrush(colorIfFalse) If (count > 2 & !string.IsNullOrEmpty(parameters)) If (count > 1 & !string.IsNullOrEmpty(parameters))ĬolorIfFalse = ColorFromName(parameters) If (count > 0 & !string.IsNullOrEmpty(parameters))ĬolorIfTrue = ColorFromName(parameters) Var parameters = parameterstring.Split(' ') If (!string.IsNullOrEmpty(parameterstring)) Var parameterstring = parameter.ToString() / A SolidColorBrush in the supplied or default colors depending on the state of value. / A CSV string on the format may be provided for customization, default is. / Bolean value controlling wether to apply color change #region Implementation of IValueConverter ![]() using System Ĭlass BoolToColorBrushConverter : IValueConverter In my case I want the output to be "Transparent" when value is false. I specify "LimeGreen" as a fallback color if the interpertation of ConverterParameter fails. Therfore I made a helper method called ColorFromName(string name). This type does not have a Color.FromName() method, like the class. ![]() Instead I want to spread the word about a little known gem called QuickConverter. There are lots of tutorials on creating converters, so I’m not going to discuss that in length here. Since the SolidColorBrush() method mentioned by is part of the library, it uses the Color type from that same library. If you’ve used binding at all in WPF then you more then likely have also written a converter. I here provide the Converter I taking the parameter. To make this converter general you may use a ConverterParameter for specifying the colors which is to be inserted when value is true or false. This is demonstrated in the second TextBlock which uses a property Trigger to check its own IsEnabled property against the value of true (since its IsEnabled property will be the same as its parent's). That is, if you set IsEnabled to false on your Button, then your TextBlock will have its IsEnabled property updated to false automatically. However, this is overkill - the IsEnabled property is propagated down to children automatically by WPF. In the example above, the first TextBlock binds to its parent's IsEnabled property using a DataTrigger, and sets the Foreground to some colour if it is true. However, do you really need to use a converter? This can be done in XAML only using Triggers: CSharp code examples for .ConvertFromString(string). The answer above shows you how to correctly you use a converter. Public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)īutton's enable,isable property changes from viewmodel(e.g using RaiseCanExecuteChanged)()) Public object Convert(object value, Type targetType, object parameter, CultureInfo culture) public class BrushColorConverter : IValueConverter I have declared following class in my "Models" folder. I want to set foreground of my textblock to black color when its associated button's isEnabled is true. When you Debug the code the bindings appear to be working except for ColorEditBox being updated with ColorString value located in the Model.I am working on WPF application.I have bound my textblock to my button. Return result + m_Random.Next(16).ToString("X") ![]() Public string OnGetRandomHexNumber(int digits) M_handler(this, new Propert圜hangedEventArgs(m_PropertyName)) Propert圜hangedEventHandler m_handler = Propert圜hanged Protected void OnPropert圜hanged(string m_PropertyName) Public event Propert圜hangedEventHandler Propert圜hanged This.ColorString = "#FF" + m_R + m_G + m_B Internal class MyModel: INotifyPropert圜hanged ![]()
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