I'm not completely sure what you're trying to do but I'll list a few examples in an attempt to help you:
If you simply want to access the values stored in a ComboBox then you either need to use the comboBox.SelectedIndex property to get the index of the selected item. The best option in my opinion is to put the object references directly into a combo box, so say you are storing a bunch of clients and the object type is Client.
If you have the clients as an array called cleints its as simple as:
ComboBox.Items.AddRange(clients);
Then to get the selected client you simply:
Client selectedClient = ComboBox.SelectedItem;
Remember selectedClient is a object pointer in reality, if you don't understand then I'll explain again in another post because it's quite long winded
For checkboxes you can get the value by using:
CheckBox.Checked;
That returns a boolean value.
Now this is all pretty straight forward beginners stuff so I assume what you're really having trouble with is accessing the values outside of the current context?
In that case simply use a property as you would for any other class:
public object comboBox1SelectedItem
{
get
{
return comboBox1.SelectedItem;
}
}
If nothing I say makes any sense post again with what exactly you want to do and I'll explain again with more specific info
