public static bool BuildConnectionString(IntPtr handle, ref string connectionString)
{
IntPtr dataInitializePointer;
IntPtr dataLinksPointer = CoCreateInstance(DBO.CLSID_DataLinks, IntPtr.Zero, 0x17, DBO.IID_IDataInitialize);
object dbPromptInitializeObject = Marshal.GetTypedObjectForIUnknown(dataLinksPointer, typeof(IDBPromptInitialize));
IDBPromptInitialize dbPromptInitialize = (IDBPromptInitialize)dbPromptInitializeObject;
dbPromptInitialize.PromptDataSource(IntPtr.Zero, handle, 2, 0, IntPtr.Zero, null,
DBO.IID_IUnknown, out dataInitializePointer);
if (dataInitializePointer != IntPtr.Zero)
{
IDataInitialize dataInitialize = (IDataInitialize)Marshal.GetTypedObjectForIUnknown(dataLinksPointer, typeof(IDataInitialize));
dataInitialize.GetInitializationString(dataInitializePointer, 1, out connectionString);
return(true);
}
return(false);
}
// Methods
public DialogResult Show(IntPtr parent)
{
try
{
CDataLink link = new CDataLink();
Guid riid = new Guid("0C733A8B-2A1C-11CE-ADE5-00AA0044773D");
IDataInitialize initialize = (IDataInitialize)link;
object ppDataSource = null;
initialize.GetDataSource(null, 1, this.connectionString, ref riid, out ppDataSource);
((IDBPromptInitialize)link).PromptDataSource(null, parent, 0x12, 0, 0, null, ref riid, ref ppDataSource);
initialize.GetInitializationString(ppDataSource, true, out this.connectionString);
}
catch (COMException)
{
return(DialogResult.Cancel);
}
return(DialogResult.OK);
}