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get unique ID of WP8

when trying to get imei number null exception occurs. when running in windows phone emulator.

//Please check this

        object uniqueId;
        var hexString = string.Empty;
        if (DeviceExtendedProperties.TryGetValue("DeviceUniqueId", out uniqueId))
            hexString = BitConverter.ToString((byte[])uniqueId).Replace("-",     string.Empty);
        MessageBox.Show("myDeviceID:" + hexString);

我有这个问题,返回null值。

In WMAppManifest.xml -> Capabilities tab -> switch on ID_CAP_IDENTITY_DEVICE

在此链接中,他使用GetValue而不是TryGetValue及其工作: 在Windows Phone 8下获取唯一设备ID(UDID)

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