how to get checked items from checked list box

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C#

C#4.0

hi!

i have a form in which i have two combobox and a checked list box
c1, c2 and check1
c1 has 10 items
c2 has 7 items
check1 has 20 items

now i hav to select items from c1 and c2 and the check items from check1 to sql server

but i dont get how to relate the checked items with commbo box selected items

i have done till here but what to do further

for (int i = 0; i < comboBoxSelectModuleMRF.Items.Count; i++)
{
	for (int j = 0; j < comboBoxSelectRoleMRF.Items.Count; j++)
	{
		if (comboBoxSelectModuleMRF.SelectedIndex == i && comboBoxSelectRoleMRF.SelectedIndex == j)
		{
			string modulename = comboBoxSelectModuleMRF.SelectedItem.ToString();
			string rolename = comboBoxSelectRoleMRF.SelectedItem.ToString();
		}
	}
}

can you help me what to do next