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FrameworkPropertyMetadata.IsDataBindingAllowed Property

Gets a value that indicates whether data binding is supported for the dependency property.

Namespace: System.Windows
Assembly: PresentationFramework (in presentationframework.dll)
XML Namespace:  http://schemas.microsoft.com/winfx/2006/xaml/presentation

public bool IsDataBindingAllowed { get; }
/** @property */
public boolean get_IsDataBindingAllowed ()

public function get IsDataBindingAllowed () : boolean

 Members of this class are either not typically used in XAML, or cannot be used in XAML. 

Property Value

true if data binding is supported on the dependency property to which this metadata applies; otherwise, false. The default is true.

This property reports false for one of two possible conditions: either data binding to a dependency property is not allowed because the dependency property is read-only (as reported in the dependency property identifier, not the metadata), or the value of another metadata property, IsNotDataBindable, is set to true in this metadata. This property is exposed as a convenience so that callers do not have to check both ReadOnly and IsNotDataBindable.

If you are attempting to create metadata that specifies that an otherwise read/write property should not support data binding, specify the flag NotDataBindable (note the slight naming convention difference versus IsNotDataBindable).

The following example obtains the default metadata from various dependency property fields, queries the value of various FrameworkPropertyMetadata properties on it, and uses the information to populate a table to implement a "metadata browser".

    pm = dp.GetMetadata(dp.OwnerType);

...

    FrameworkPropertyMetadata fpm = pm as FrameworkPropertyMetadata;
    if (fpm!=null) {
        AffectsArrange.Text = (fpm.AffectsArrange) ? "Yes" : "No";
        AffectsMeasure.Text = (fpm.AffectsMeasure) ? "Yes" : "No";
        AffectsRender.Text = (fpm.AffectsRender) ? "Yes" : "No";
        Inherits.Text = (fpm.Inherits) ? "Yes" : "No";
        IsDataBindingAllowed.Text = (fpm.IsDataBindingAllowed) ? "Yes" : "No";
        BindsTwoWayByDefault.Text = (fpm.BindsTwoWayByDefault) ? "Yes" : "No";
    }         

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0

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