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PropertyStoreSetT Method (Object, T, Action, T)

Set the value for the specified property key, calling the propertyChanged delegate if it has changed.

Namespace:  Eto
Assembly:  Eto (in Eto.dll) Version: 2.5.3-dev
Syntax
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public bool Set<T>(
	Object key,
	T value,
	Action propertyChanged,
	T defaultValue = null
)

Parameters

key
Type: SystemObject
Key of the property to set.
value
Type: T
Value for the property.
propertyChanged
Type: SystemAction
Property changed event handler to raise if the property value has changed.
defaultValue (Optional)
Type: T
Default value of the property to compare when removing the key

Type Parameters

T
The type of the property to set.

Return Value

Type: Boolean
true if the property was changed, false if not
Remarks
This is useful when creating properties that need to trigger changed events without having to write boilerplate code.
Examples
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public class MyForm : Form
{
    static readonly MyPropertyKey = new object();

    public bool MyProperty
    {
        get { return Properties.Get<bool>(MyPropertyKey); }
        set { Properties.Set(MyPropertyKey, value, OnMyPropertyChanged); }
    }

    public event EventHandler<EventArgs> MyPropertyChanged;

    protected virtual void MyPropertyChanged(EventArgs e)
    {
        if (MyPropertyChanged != null)
            MyPropertyChanged(this, e);
    }
}
See Also