Select video and audio capture devices in Video Capture SDK .Net

foreach (var device in VideoCapture1.Video_CaptureDevicesInfo)
{
    cbVideoInputDevice.Items.Add(device.Name);                
}

VideoCapture1.Video_CaptureDevice = cbVideoInputDevice.Text;

var deviceItem = VideoCapture1.Video_CaptureDevicesInfo.First(device => device.Name == cbVideoInputDevice.Text);
if (deviceItem == null)
{
    return;
}

cbVideoInputFormat.Items.Clear();
foreach (string format in deviceItem.VideoFormats)
{
    cbVideoInputFormat.Items.Add(format);
}

cbFramerate.Items.Clear(); 
foreach (string frameRate in deviceItem.VideoFrameRates) 
{ 
    cbVideoFrameRate.Items.Add(frameRate); 
}

VideoCapture1.Video_CaptureDevice_Format = cbVideoInputFormat.Text;

VideoCapture1.Video_CaptureDevice_Format_UseBest = true;

VideoCapture1.Video_CaptureDevice_FrameRate = Convert.ToDouble(cbVideoFrameRate.Text);

VideoCapture1.Video_CaptureDevice_IsAudioSource = true;

cbAudioInputFormat.Items.Clear();
cbAudioInputLine.Items.Clear();

var deviceItem = VideoCapture1.Video_CaptureDevicesInfo.First(device => device.Name == cbVideoInputDevice.Text);
if (deviceItem != null)
{
    foreach (string format in deviceItem.AudioFormats)
    {
        cbAudioInputFormat.Items.Add(format);
    }
}

VideoCapture1.Audio_CaptureDevice_Format = cbAudioInputFormat.Text;

VideoCapture1.Audio_CaptureDevice_Format_UseBest = true;

VideoCapture1.Audio_CaptureDevice_Line = cbAudioInputLine.Text;