IsNullOrEmptyConverter Class
Represents a value converter that returns whether the specified value is null, and if it is a string, also if it is null or empty.
[ValueConversion(typeof(object), typeof(bool))]
public class IsNullOrEmptyConverter
- Inheritance:
- object object
Constructors
IsNullOrEmptyConverter()
Initializes an instance of the class.
public IsNullOrEmptyConverter()
Properties
IsInverted
Gets or sets whether the result should be inverted.
public bool IsInverted { get; set; }
Property Value
- bool:
true
if the result should be inverted; otherwise,false
.s
Methods
Convert(object, Type, object, CultureInfo)
Converts a value. The data binding engine calls this method when it propagates a value from the binding source to the binding target.
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
Parameter | Type | Description |
---|---|---|
value | object | The value produced by the binding source. |
targetType | Type | The type of the binding target property. |
parameter | object | The converter parameter to use. |
culture | CultureInfo | The culture to use in the converter. |
Returns
- object:
A converted value.
ConvertBack(object, Type, object, CultureInfo)
Converts a value. The data binding engine calls this method when it propagates a value from the binding target to the binding source.
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
Parameter | Type | Description |
---|---|---|
value | object | The value produced by the binding source. |
targetType | Type | The type of the binding target property. |
parameter | object | The converter parameter to use. |
culture | CultureInfo | The culture to use in the converter. |
Returns
- object:
A converted value.