1. Filter the column "code" to show only "(Blanks)"
2. Hit the "Save Layout" button to save the layout into a string
3. Hit the "Load Layout" button. The row is gone
   

 

Use the following code snippet:

https://docs.telerik.com/devtools/winforms/styling-and-appearance/using-a-default-theme-for-the-entire-application#enabledisable-the-globally-set-theme-for-a-specific-control 

 

Workaround:

We're trying to apply a filter to data that may contain infinity values but it is not working.

I have a RadGridView that has expandable rows. If I expand the row, start editing an editable cell and then, without committing the edit (by pressing enter or clicking away from the cell), collapse the row, the program crashes with roughly the following stack trace:


Stack Trace:
   at System.Collections.ArrayList.BinarySearch(Int32 index, Int32 count, Object value, IComparer comparer)
   at Telerik.WinControls.UI.TextBoxWrapPanel.BinarySearch(LineInfo line, IComparer comparer)
   at Telerik.WinControls.UI.TextBoxNavigator.GetPositionFromOffset(Int32 offset)
   at Telerik.WinControls.UI.RadTextBoxControlElement.Select(Int32 start, Int32 length)
   at Telerik.WinControls.UI.RadTextBoxControlEditor.EndEdit()
   at Telerik.WinControls.UI.GridViewEditManager.EndEditCore(Boolean validate, Boolean cancel)
   at Telerik.WinControls.UI.GridViewEditManager.CloseEditor()

Please refer to the attached sample project and follow the steps from the grid file:

Steps to reproduce:
1. Filter the checkbox column to only show unchecked rows
2. Enter "5" for filtering the Name column
3. Click the checkbox column on the bottom row
4. Remove filter value in the Name column
This will result in the unrelated record showing as checked. Scrolling or changing sorting may refresh the cell. If the  filter is cleared by using the No filter menu option, the problem is not observed

Please refer to the attached sample project and follow the steps in the gif file.

Workaround: custom filtering to control which rows to be visible or not: https://docs.telerik.com/devtools/winforms/controls/gridview/filtering/custom-filtering 

I have three grids.

Two of the grids (B & C) are on the same tab and the other (A) on a different tab.

Only one tab can be visible at any one time, so you can either see and interact with the single grid (A) or the other two grids (B & C).

I need to be able to select a row in C (based on a criteria) when you click on a row in A or B.

Grid C has paging enabled.

I can successfully select the desired row in C when I click on a row in B and see the paging change to show the selected row.

But, when I click on a row in A and find a matching row in C, the row seems to get selected but the paging does not move to where the selected row is.

You can also note it in demo application with this settings:

While expanding/collapsing and scrolling through the given nested grid exception is thrown.

If you define which columns to be printed on separate pages and try to use the Print Settings dialog to change the orientation for example, the multi-page printing gets lost: 

https://docs.telerik.com/devtools/winforms/controls/gridview/printing-support/gridprintstyle#multi-page-printing

Here is the code snippet which result is illustrated in the attached gif file:

  

To reproduce:

1. Bind a RadGridView to the Northwind.Products table

2. Enable the header checkbox for the Discontinued column

3. Set the ReadOnly property either for the grid or for the specific column.

The header checkbox is not allowed to be toggled. However, you can toggle/untoggle it which affects all the data rows.

Hi,

We got an issue with the Winforms grid view component while displaying a negative TimeSpan.

Currently, due to the specificity of the internal implementation for this scrolling behavior, the possible solution that I can suggest is to hide the row header by setting the ShowRowHeaderColumn property to false. 

To reproduce:

1. Expand a parent row in hierarchical grid.

2. Click on the second tab

3. If the child grid doesn't have any rows, the CurrentViewChanged event will not fire.

Hello everyone,

We found one problem with the  RadListFilterPopup (WindowsForms)
when we use the char '/' to search the filter, our App close.

When we use one specific type of keyboard (with numeric and it has char '.' in it) the char '.'  make the same error.

When the grid is grouped and there are hidden summary rows, the summary rows are not exported.

Hello,

We are experiencing a strange behaviour of RadGridView set as a self referencing hierarchy when used with Excel filters.

Once we use predefined filter values (both, build-in and custom defined by us) the filter icon is highlitghted when none of the filter is marked. This higlight can be removed when clear filters button of filter popup is used or FilterDescriptors are cleared. If we do not clear the filters manually, and, for instance, sort grid column the application crashes with internal error of the grid. Error reads Object reference not set to an instance of object.

Attached movie will explain it better. I have also attached a ver simple sample project with data (which does not make sense, just for visualisation) that should fail when you repeat steps described above (turn today or last 7 days filter, apply, select no filter, apply and try to sort the same column).

Is there a workaround or specific conditions we need to apply to have it working?

Thanks for your advice.

I'm also attaching errors details:

System.NullReferenceException
  HResult=0x80004003
  Message=Object reference not set to an instance of object. /this message comes in Polish, translated
  Source=Telerik.WinControls.GridView
  StackTrace:
   at Telerik.WinControls.UI.GridViewTemplate.PerformHierarchyFilter(GridViewRowInfo rowInfo)
   at Telerik.WinControls.Data.RadCollectionView`1.PassesFilter(TDataItem item)
   at Telerik.Collections.Generic.HybridIndex`1.GetFilteredItems(IEnumerable`1 e)
   at Telerik.Collections.Generic.HybridIndex`1.PerformWithQuickSort()
   at Telerik.Collections.Generic.HybridIndex`1.Perform()
   at Telerik.Collections.Generic.HybridIndex`1.get_Items()
   at Telerik.Collections.Generic.Index`1.get_Count()
   at Telerik.WinControls.Data.GroupBuilder`1.get_Groups()
   at Telerik.WinControls.Data.SnapshotCollectionView`1.get_Groups()
   at Telerik.WinControls.UI.GridViewInfo.LoadHierarchicalData(GridViewHierarchyRowInfo parent, ICollectionView`1 sourceView)
   at Telerik.WinControls.UI.GridViewInfo.Refresh()
   at Telerik.WinControls.UI.GridViewInfo.get_ChildRows()
   at Telerik.WinControls.UI.GridTableElement.UpdateViewCore(Object sender, DataViewChangedEventArgs args)
   at Telerik.WinControls.UI.GridTableElement.UpdateView(Object sender, DataViewChangedEventArgs args)
   at Telerik.WinControls.UI.GridTableElement.ProcessTemplateEvent(GridViewEvent eventData)
   at Telerik.WinControls.UI.GridTableElement.Telerik.WinControls.UI.IGridViewEventListener.ProcessEvent(GridViewEvent eventData)
   at Telerik.WinControls.UI.GridViewEventProcessEntity.ProcessCollection(GridViewEvent gridEvent, PriorityWeakReferenceList list, GridEventProcessMode processMode)
   at Telerik.WinControls.UI.GridViewEventProcessEntity.ProcessEvent(GridViewEvent gridEvent)
   at Telerik.WinControls.UI.GridViewSynchronizationService.NotifyListeners(GridViewEvent gridEvent)
   at Telerik.WinControls.UI.GridViewSynchronizationService.FlushEvents()
   at Telerik.WinControls.UI.GridViewSynchronizationService.DispatchEvent(GridViewEvent gridEvent)
   at Telerik.WinControls.UI.GridViewSynchronizationService.DispatchEvent(GridViewTemplate template, GridViewEvent eventData, Boolean postUI)
   at Telerik.WinControls.UI.GridViewTemplate.DispatchEvent(GridViewEvent gridEvent, Boolean postUI)
   at Telerik.WinControls.UI.GridViewTemplate.DispatchDataViewChangedEvent(Object sender, DataViewChangedEventArgs args)
   at Telerik.WinControls.UI.GridViewTemplate.OnViewChanged(Object sender, DataViewChangedEventArgs e)
   at Telerik.WinControls.UI.MasterGridViewTemplate.OnViewChanged(Object sender, DataViewChangedEventArgs e)
   at Telerik.WinControls.UI.GridViewTemplate.CollectionView_CollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
   at Telerik.WinControls.Data.RadCollectionView`1.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
   at Telerik.WinControls.Data.RadDataView`1.RebuildData(Boolean notify)
   at Telerik.WinControls.Data.RadDataView`1.RefreshOverride()
   at Telerik.WinControls.Data.RadDataView`1.OnNotifyPropertyChanged(PropertyChangedEventArgs e)
   at Telerik.WinControls.Data.RadCollectionView`1.OnNotifyPropertyChanged(String propertyName)
   at Telerik.WinControls.Data.RadCollectionView`1.sortDescriptors_CollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
   at Telerik.Collections.Generic.NotifyCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
   at Telerik.WinControls.UI.GridViewSortDescriptorCollection.OnCollectionChanged(NotifyCollectionChangedEventArgs args)
   at Telerik.Collections.Generic.NotifyCollection`1.InsertItem(Int32 index, T item)
   at Telerik.WinControls.Data.SortDescriptorCollection.InsertItem(Int32 index, SortDescriptor item)
   at Telerik.WinControls.UI.GridViewSortDescriptorCollection.InsertItem(Int32 index, SortDescriptor item)
   at System.Collections.ObjectModel.Collection`1.Add(T item)
   at Telerik.WinControls.UI.GridViewColumn.Sort(RadSortOrder sortOrder, Boolean multiSortMode)
   at Telerik.WinControls.UI.GridHeaderCellElement.Sort(RadSortOrder sortOrder)
   at Telerik.WinControls.UI.GridHeaderRowBehavior.OnMouseUp(MouseEventArgs e)
   at Telerik.WinControls.UI.BaseGridBehavior.OnMouseUp(MouseEventArgs e)
   at Telerik.WinControls.UI.RadGridView.OnMouseUp(MouseEventArgs e)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at Telerik.WinControls.RadControl.WndProc(Message& m)
   at Telerik.WinControls.UI.RadGridView.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
   at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
   at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
   at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
   at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()
   at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()
   at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine)
   at bindingListEx_celLike.My.MyApplication.Main(String[] Args) in :line 81

When dragging a column to column chooser the text is overlapping columns added to the list.

001.png: On the GridViewComboBoxColumn how do I prevent the drop down from covering the input cell when grid is at the bottom of the screen's viewable area?

I've tried setting the position and location under the CellEditorInitialized event, but had no luck.

 

private void RadGridARCashReceipt_CellEditorInitialized(object sender, GridViewCellEventArgs e)
        {
            if (e.ActiveEditor is RadDropDownListEditor)
            {
                RadDropDownListEditor editor = e.ActiveEditor as RadDropDownListEditor;
                if (editor != null)
                {
                    RadDropDownListEditorElement ddlElement = (RadDropDownListEditorElement)editor.EditorElement;
                    ddlElement.EnableMouseWheel = false;

                    ddlElement.DropDownMinSize = new Size(200, 200);
                    ddlElement.AutoCompleteSuggest.DropDownList.DropDownMinSize = new Size(200, 200);

                    //ddlElement.AutoCompleteSuggest.DropDownList.Location = new Point(1000, 1000);                    
                }
            }
        }

Hi Telerik Teams,

I have a problem，When I filter data in gridview, a RadForm appears. But there are problems with the margins of its 2 buttons. How can I deal with it?

Thanks

Mason Chiu