In Surface Pro 3,if VideoDevicesComboBox.SelectedItem = "Microsoft LifeCam Rear",The program breakdown.why ? ? ?

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C#

WebcamCtrl.StartCapture();
foreach (EncoderDevice device in _vidDevices.Where(device => device.Name == "Microsoft LifeCam Rear"))
{
    VideoDevicesComboBox.SelectedItem = device;
    break;
}

Posted 11-Dec-14 22:28pm

Member 11304516

Updated 11-Dec-14 23:02pm

George Jonsson

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Pheonyx 12-Dec-14 4:37am

What does "breakdown" mean? Do you get an exception? What behaviour are you expecting?
What debugging steps have you tried?

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George Jonsson · Answer 1 · 2014-12-11T23:06:00

Try this

C#

var devices = _vidDevices.Where(device => device.Name == "Microsoft LifeCam Rear");
if (devices != null)
{
    foreach (EncoderDevice device in devices)
    {
        VideoDevicesComboBox.SelectedItem = device;
        break;
    }
}

Then analyze what the variable devices contains.
For a foreach loop to work, the variable devices should be a list, even if it is empty (length = 0).