I need help with the performance of the SortDescriptors for the RadGridview. I attached a project that demonstrates the issue.

I have two sets of data. The "Larger Data Table" has roughly twice as many rows (around 17k). The "Smaller Data Table" has around 9k rows.

• Setting the Sort Descriptors toggle switch ON, selecting the "Larger Data Table" radio button, and clicking the [Load Data Set] button takes approximately 1 second in my environment.
• Setting the Sort Descriptors toggle switch ON, selecting the "Smaller Data Table" radio button, and clicking the [Load Data Set] button takes approximately 7 seconds in my environment.

I have no idea what is causing this issue. However, through a ton of troubleshooting, I finally figured out it is the sort descriptors causing the issue.

你好，

我们下载了teleririkv2022R1版本，想从winForm自动转换到.net core，但是发现最新版本网上没有介绍.NET Core Project Converter？是什么原因？

最好的祝福，

星宇

Hi there,

I´m switching for radgridview to radvirtualgrid but i´m having some problems in keeping some of the funcionalities i previously had.  

1)  Conditional Formatting is possible in virtual grid?

2) Enable grouping (https://docs.telerik.com/devtools/winforms/controls/gridview/grouping/setting-groups-programmatically) is also another funcionality that i would like to keep in my virtual grid but i can´t find anything online related to it.

Thanks in advance.

Hi,

I'm using what you recommand to dragdrop between two gridview.

RowDragHint doesn"t show up when dragging from a gridview to another. Is there anything I can do, with a custom dragDropBehavior to change the way the previewDrop is rendered.

Expected Drop Preview

Here's what I would like to display when I hover the right gridview

What's truly happening... sadly 😅

There is no rowhint when hovering the gridview

The documentation I used:

https://docs.telerik.com/devtools/winforms/controls/gridview/rows/drag-and-drop

Thanks in advance.

Best regards

Hello.

I'm leaving you a question because I need your help.

Is there a way to run multiple windows of the same menu? Just like below.

* Menu Example

--------------------------------------------------------------------------------

A MENU    |    B MENU    |    C MENU

--------------------------------------------------------------------------------

B Sub Menu    |     B Sub Menu    |    B Sub Menu

--------------------------------------------------------------------------------

Code for generating the menu currently in use.

* CODE

var menuList = MenuList.List.Where(x => x.DISPLAY_FLAG.Equals("Y"));
                foreach (FT_MENU_INFO menu in menuList)
                {
                    if (string.IsNullOrWhiteSpace(menu.PARENT_MENU_CD) 
                        || menu.MENU_CODE.Equals(menu.PARENT_MENU_CD))
                    {
                        var item = new RadMenuItem { Text = menu.MENU_NAME };
                        item.Padding = new Padding(0, 0, 3, 0);
                        item.ClickMode = ClickMode.Press;
                        item.ShowArrow = false;
                        item.Visibility = ElementVisibility.Visible;

                        var subMenuItem = menuList.Where(x => x.PARENT_MENU_CD != null && x.PARENT_MENU_CD.Equals(menu.MENU_CODE)).ToArray();
                        for (int i = 0; i < subMenuItem.Length; i++)
                        {
                            RadMenuItem subMenu = new RadMenuItem()
                            {
                                Text = subMenuItem[i].MENU_NAME,
                                Name = subMenuItem[i].MENU_CODE
                            };

                            subMenu.Click += Menu_Click;
                            item.Items.Add(subMenu);
                        }

                        this.radMenu.Items.Add(item);
                    }
                }

Hello,

I had project which builed with Telerik in version 2020.1. I have in my project  custom GridSearchCellElement class. After Telerik upgrate I get the following error message "CreateMatchCaseButton(): no suitable method found to override". Somewhere on your forums I found information that the function CreateMatchCaseButton() is obsolate. Could you tell my which function replaced the CreateMatchCaseButton() function in new version?

All the best

Hello,

My apologies if this is a too simple question.

I am trying to work with three cascading Grid Views and do not understand the right event to look for.

1) In the first Grid View, I display a list linked to a datasource. This is the reference list from which the user may select one or more rows (with multi-select = true and FullRowSelect as selection mode)

2) Then this selection create another list which fills/update the second GridView. Most often this is only one row.

3) I would like to fill the third Grid View based on the second Grid View updated list. However, I do not find any row event able to do in all cases. In particular, as most of the time the number of rows in the updated second grid view are the same, neither SelectionChanged nor RowChanged nor CurrentRow_changed are working.

What do I do wrong ?

Thanks for your answers

P.

Hello,

please, how can I do a double-click-cell-event to see in a pop-dialog the detail rows in a pivot grid?

I have try it, but It doesn´t works.

I add my basic code of pivot grid (UPDATED WITH THE CODE OF UNDERLYING)

Thank you!

-------

updates of today: Now, the gridview show columns: rowerror, rowstate, ...

I upload the updated code.

Please, can you help me? Thanks!

Hello,

I am trying to get a new Telerik C# Winsdows Forms Application project started (Screen 1) thro the project wizard in visual studio 2022, but every time I press "create" the program stalls (Screen 2) and I have to break of Visual Studio.

I tried uninstalling Visual studio and Telerik UI for WinForms end reinstalling everything but with no success. 

I have no problem opening a normal Windows Form app project thro the wizard.

Do you ever had the same problem?

Kind Regrades,

Dieter

THe Image Saved event is not firing...

in form designer.cs I have:

this.radImageEditor.ImageSaved += new System.EventHandler(this.radImageEditor_ImageSaved);

but a breakpoint here is never hit: