public void SaveExpandedMasterRows(GridView view)
{
if (view.GridControl.Views.Count == 1)
{
return;
}
SaveMasterRowsList.Clear();
for (int i = 0; i < view.DataRowCount; i++)
{
if (view.GetMasterRowExpanded(i))
{
object key = view.GetRowCellValue(i, descriptor.keyFieldName);
SaveMasterRowsList.Add(key);
GridView detail = view.GetVisibleDetailView(i) as GridView;
if (detail != null)
{
ViewState state = ViewState.Create(this, detail);
if (state != null)
{
DetailViews.Add(key, state);
state.SaveState(detail);
}
}
}
}
}
private Detail ToDetail(DetailViews view)
{
return(new Detail
{
idDetail = view.idDetail,
Height = view.Height,
MeasureHeight = view.MeasureHeight,
Width = view.Width,
MeasureWidth = view.MeasureWidth,
Depth = view.Depth,
DepthMeasurement = view.DepthMeasurement,
Image = view.Image,
DescriptionAdmin = view.DescriptionAdmin,
DescriptionUser = view.DescriptionUser
});
}
/// <summary>
/// Restores the previously expanded master rows.
/// </summary>
/// <param name="view">The grid view to expand in.</param>
public void RestoreExpandedMasterRows(GridView view)
{
//TODO: Does including BeginUpdate and EndUpdate have any effect here?
// A potential problem with adding BeginUpdate and EndUpdate might be that GetVisibleDetailView
// does not get the correct/expected value when the grid is not updating. This needs verifying.
//view.BeginUpdate();
//try
//{
//Collapse all master rows.
view.CollapseAllDetails();
//Foreach saved key value
foreach (var value in SavedExpandedMasterRowsList)
{
//Find the row handle matching the value.
var rowHandle = FindRowHandleByKeyValue(view, value);
//If no details ViewState exist for this value.
if (!DetailViews.TryGetValue(value, out var state))
{
//Expand the master row.
view.SetMasterRowExpanded(rowHandle, true);
}
else
{
//Expand the master row and make the specified relation index the visible detail.
view.SetMasterRowExpandedEx(rowHandle, view.GetRelationIndex(rowHandle, state._descriptor.LevelName), true);
//Get the visible details view for the row.
//If a details view is found then load the state for this details view.
if (view.GetVisibleDetailView(rowHandle) is GridView detail)
{
state.RestoreState(detail);
}
}
}
//}
//finally
//{
// view.EndUpdate();
//}
}
public ActionResult Create(DetailViews view)
{
if (ModelState.IsValid)
{
var pic = string.Empty;
var folder = "~/Content/Image";
if (view.ImageFile != null)
{
pic = FileHelper.uploadphoto(view.ImageFile, folder);
pic = string.Format("{0}/{1}", folder, pic);
}
var detail = ToDetail(view);
detail.Image = pic;
db.Details.Add(detail);
db.SaveChanges();
return(RedirectToAction("Index"));
}
return(View(view));
}
/// <summary>
/// Stores the expanded master rows.
/// </summary>
/// <param name="view">The grid view to store expanded master rows for.</param>
public void StoreExpandedMasterRows(GridView view)
{
//If there are no master details in the grid control then return to caller.
if (view.GridControl.Views.Count == 1)
{
return;
}
//Clear any previously stored detail views.
DetailViews.Clear();
//Clear any previously saved rows.
SavedExpandedMasterRowsList.Clear();
//Go through each row in the grid view.
for (var index = 0; index < view.DataRowCount; index++)
{
//Is the master row is expanded?
if (view.GetMasterRowExpanded(index))
{
//Get the key value of the row and add it to the expanded master rows list.
var keyValue = view.GetRowCellValue(index, _descriptor.KeyColumn);
SavedExpandedMasterRowsList.Add(keyValue);
//Try and get the visible details view of the grid view.
if (view.GetVisibleDetailView(index) is GridView detail)
{
//Create a new view state for the details view.
var state = Create(this, detail);
if (state != null)
{
//Save the state with it's key value.
DetailViews[keyValue] = state;
//Store the state of the details view.
state.StoreState(detail);
}
}
}
}
}