int IShellFolder2.MapColumnToSCID(uint iColumn, out PROPERTYKEY pscid)
{
// Use the ShellFolderImpl to handle the details.
return ((IShellFolder2)shellFolderImpl).MapColumnToSCID(iColumn, out pscid);
}
int IShellFolder2.GetDetailsEx(IntPtr pidl, PROPERTYKEY pscid, out object pv)
{
// Use the ShellFolderImpl to handle the details.
return ((IShellFolder2)shellFolderImpl).GetDetailsEx(pidl, pscid, out pv);
}
int IShellFolder2.MapColumnToSCID(uint iColumn, out PROPERTYKEY pscid)
{
// Get the detail columns.
var columns = ((DefaultNamespaceFolderView)lazyFolderView.Value).Columns;
// If we've been asked for a column we don't have, return failure.
if (iColumn >= columns.Count)
{
pscid = new PROPERTYKEY();
return WinError.E_FAIL;
}
// Get the column property id.
pscid = columns[(int)iColumn].PropertyKey.CreateShellPropertyKey();
// We've mapped the column.
return WinError.S_OK;
}
private string GetItemColumnValue(IntPtr pidl, PROPERTYKEY propertyKey)
{
// Get the value for the property key.
var item = GetChildItem(PidlManager.PidlToIdlist(pidl));
var column = ((DefaultNamespaceFolderView)lazyFolderView.Value).Columns.FirstOrDefault(c =>
{
var key = c.PropertyKey.CreateShellPropertyKey();
return key.fmtid == propertyKey.fmtid && key.pid == propertyKey.pid;
});
var detail = ((DefaultNamespaceFolderView)lazyFolderView.Value).GetItemDetail(item, column);
return detail.ToString();
}
int IShellFolder2.GetDetailsEx(IntPtr pidl, PROPERTYKEY pkey, out object pv)
{
// If we have no pidl, we cannot get details.
if (pidl == IntPtr.Zero)
{
pv = null;
return WinError.E_INVALIDARG;
}
// todo If the item is not a folder and the property key is PKEY_PropList_PreviewDetails
// we need to return a string like:
// "prop:Microsoft.SDKSample.AreaSize;Microsoft.SDKSample.NumberOfSides;Microsoft.SDKSample.DirectoryLevel");
// to indicate what to show in the details pane.
/*
if (!pfIsFolder && IsEqualPropertyKey(*pkey, PKEY_PropList_PreviewDetails))
{
// This proplist indicates what properties are shown in the details pane at the bottom of the explorer browser.
pv->vt = VT_BSTR;
pv->bstrVal = SysAllocString(L"prop:Microsoft.SDKSample.AreaSize;Microsoft.SDKSample.NumberOfSides;Microsoft.SDKSample.DirectoryLevel");
hr = pv->bstrVal ? S_OK : E_OUTOFMEMORY;
}*/
// Get the detail todo rename
pv = GetItemColumnValue(pidl, pkey);
// We're done.
return WinError.S_OK;
}
