CheckBox Control

// Create the data object of the control.
CheckBoxData checkData = new CheckBoxData
  (this.Workflow,
  "CheckBoxKey",
  "Title", /* title of the group box */
  "MyWorkflowTest", 
  "CheckBoxKey");
// Create the individual check box designs. Create an array of 
// DataItems, one for each check box. The following code 
// creates one check box.
  CheckBoxData.DataItem[] cbItems = new CheckBoxData.DataItem[1];
// Define the specifics of a single check box. It has the
// text "Check 1", and it is checked.
CheckBoxData.DataItem cbItem1 = new CheckBoxData.DataItem
  ("Check 1", "Check1Tag", true);
// Assign the newly created specifics to a place within the array.
cbItems.SetValue(cbItem1, 0);
// Assign the array to the data container.
checkData.AvailableItems = cbItems;
// Create a control containing the group box and check boxes as
// defined in the control data object.
CheckBoxControlDesktop checkControl = 
  new CheckBoxControlDesktop(checkData);
// Add the control to the workflow container. 
container.AddUserControl(checkControl);

// Get the list of all control data objects.
WorkflowDataList dataList = container.DataList;
// Retrieve the check box data object from the list of
// control data objects.
CheckBoxData checkData = dataList["CheckBoxKey"] as CheckBoxData;
foreach (CheckBoxData.DataItem check in checkData.CheckedItems)
{
    if (check.CheckState == true)
    {
        // Do something if the checkbox is checked.
    }
}