wpf Value and Multivalue Converters
Parameters
| Parameter | Details |
|---|---|
| value | The value produced by the binding source. |
| values | The values array, produced by the binding source. |
| targetType | The type of the binding target property. |
| parameter | The converter parameter to use. |
| culture | The culture to use in the converter. |
Remarks
What IValueConverter and IMultiValueConverterthey are
IValueConverter and IMultiValueConverter - interfaces that provides a way to apply a custom logic to a binding.
What they are useful for
- You have a some type value but you want to show zero values in one way and positive numbers in another way
- You have a some type value and want to show element in one case and hide in another
- You have a numeric value of money but want to show it as words
- You have a numeric value but want to show different images for defferent numbers
These are some of the simple cases, but there are many more.
For cases like this, you can use a value converter. These small classes, which implement the IValueConverter interface or IMultiValueConverter, will act like middlemen and translate a value between the source and the destination. So, in any situation where you need to transform a value before it reaches its destination or back to its source again, you likely need a converter.
