Telerik UI for WinForms controls used to be automatically added to Visual Studio's Toolbox during the installation process when using .NET 2.0 (up to 4.8) Framework in your project. This means that the Toolbox population relies on the Telerik WinForms version available in the Global Assembly Cache.

With the introduction of .NET Core/.NET 5 and the WinForms designer, the Toolbox configuration doesn't rely on the GAC anymore and it is not necessary to have an installation of the Telerik UI for WinForms suite. The Toolbox version depends on the installed NuGet package:
https://docs.telerik.com/devtools/winforms/core/core-toolbox-version

There is a known issue that any UserControls/ custom controls don't show up in the toolbox for a VB  project with .NET6.  Even the RadControls are not loaded in the toolbox. 

This seems to be a known issue introduced in Visual Studio 2022 17.3 only for VB project with .NET6. Microsoft are currently working on the issue and I believe that an update will be introduced with the fix: https://developercommunity.visualstudio.com/t/Custom-and-User-Controls-not-shown-in-To/10118197 

Only users that have Telerik installation version 2021.1.122 are affected.

Symptoms:

Clients that have Telerik installation version 2021.1.122 can not build successfully .NET Core/.NET 5.0 projects. The following error occurs while compiling the project:

The problem is a missing NuGet fallback folder.

Solution:

You should create the missing ToolboxNuGetPackages folder in the installation folder of the controls, usually at C:\Program Files (x86)\Progress\ToolboxNuGetPackages.

Hi guys,

Anyone knows how to disable the right click in the filter row? As the filter use the same ContextMenuOpening.

Hello,

I have a RadRibbonBar and I have added a Group for themes. Inside that I have added a RadGalaryElement control, within this I want to add themes exactly as shown in the below screenshot. When hovering mouse on theme, it shows large icon. (The attached screenshot is from different tool)

1.

2. On clicking the bottom button popup appears with all the themes name + Image.

Please add all the themes and attach a source code zip file.

Thanks.

Hi Dinko and team ,

Tried to migrate from Visual studio 2010 project along with Telerik.WinControls.UI.dll - Version - 2013.3.1.1127  to Visual studio 2022 with Telerik.WinControls.UI.dll - Version 2023.1.314.

There are random stackoverflow exceptions throughout project. In older version Telerik 2013.3.1.1127  is working with no issues only in Visual studio 2022  Telerick 2023.1.314 creating issue.

Found the RadDropDownList is the root cause So

As Dinko | Tech Support Engineer Telerik suggested in forum tried the below code

cmbValveSize_SelectedIndexChanged -= cmbValveSize_SelectedIndexChanged;

cmbValveSize.SelectedValue = 3;

cmbValveSize.SelectedIndexChanged += cmbValveSize_SelectedIndexChanged;

The stackoverflow is got resolved at this point so we applied the same code wherever SelectedValue getting assigned throughout project but when we call recursive functions the SelectedValue is getting assigned as null since the assigned value is based on value member signature and datasource datatable also having value. 

    private void setComboBoxIndexChanged(RadDropDownList combobox, object selectedValue, Telerik.WinControls.UI.Data.PositionChangedEventHandler eventHandler)
        {
            if (eventHandler != null) { combobox.SelectedIndexChanged -= eventHandler; }
            if (int.TryParse(Convert.ToString(selectedValue), out int result))
            {       
                combobox.SelectedValue = result; //result having the value but assiging as null
                if (combobox.SelectedValue == null && combobox.Name == "cmbValveSize")
                {
                    DataTable dtValues = (DataTable)cmbValveSize.DataSource;
                   if(dtValues.Rows.Count > 0)
                    {

                    }
                   else
                    {

                    }
                }

if (eventHandler != null) { combobox.SelectedIndexChanged += eventHandler; }    

}

 So what is causing in version 2023.1.314  RadDropDownList? why we need to do subscribe and unsubscribe for Telerik 2023.1.314 but not for Telerik 2013.3.1.1127 . What is the change between2013.3.1.1127 and  2023.1.314.

When is the change and Which version will overcome the stackoverflow issue in Visual studio 2022 after  2013.3.1.1127.? - Since we need the latest Telerik version for VS 2022 application.

Unsubscribe and subscribe is not a solution it is affecting the other functionalities of project.

Please suggest what we can do apart from Unsubscribe and subscribe.

Thanks,

Maheswari

The Drag & Drop service is working perfectly on my RadGridView until I add a GridViewTemplate to it with the intent to create a hierarchy view, after which the drag events aren't even fired anymore. Any ideas, please?

This is how I initialize the Drag & Drop behavior on my main DataGrid:

private void InitGrid()
        {             
            bt_addAttachment.Visible = false;
            BaseGridBehavior gridBehavior = this.radGridView1.GridBehavior as BaseGridBehavior;
            gridBehavior.UnregisterBehavior(typeof(GridViewDataRowInfo));
            gridBehavior.RegisterBehavior(typeof(GridViewDataRowInfo), new CustomRowGridBehavior());

            //handle drag and drop events for the grid through the DragDrop service
            RadDragDropService svc = this.radGridView1.GridViewElement.GetService<RadDragDropService>();
            svc.PreviewDragStart += svc_PreviewDragStart;
            svc.PreviewDragDrop += svc_PreviewDragDrop;
            svc.PreviewDragOver += svc_PreviewDragOver;        
        }

        //required to initiate drag and drop when grid is in bound mode
        private void svc_PreviewDragStart(object sender, PreviewDragStartEventArgs e)
        {
            e.CanStart = true;
        }

        private void svc_PreviewDragOver(object sender, RadDragOverEventArgs e)
        {
            if (e.DragInstance is GridDataRowElement)
            {
                e.CanDrop = e.HitTarget is SchedulerCellElement;
            }
        }

        private void svc_PreviewDragDrop(object sender, RadDropEventArgs e)
        {
            SchedulerCellElement schedulerCell = e.HitTarget as SchedulerCellElement;
            if (schedulerCell == null)
            {
                //DayViewAllDayHeader allDay = (this.radScheduler1.SchedulerElement.ViewElement as SchedulerDayViewElement).AllDayHeaderElement;
                //schedulerCell = SchedulerUIHelper.GetCellAtPoint(e.DropLocation, allDay.Children);
            }
            if (schedulerCell == null)
            {
                return;
            }
            GridDataRowElement draggedRow = e.DragInstance as GridDataRowElement;
            if (draggedRow == null)
            {
                return;
            }

            DataRowView dataRowView = draggedRow.Data.DataBoundItem as DataRowView;
            if (dataRowView != null)
            {
                if (draggedRow.GridControl.DataSource != null && typeof(BindingSource).IsAssignableFrom(draggedRow.GridControl.DataSource.GetType()))
                {
                    Appointment appointment = new Appointment();
                    appointment.Start = (DateTime)draggedRow.RowInfo.Cells["Start"].Value;
                    appointment.End = (DateTime)draggedRow.RowInfo.Cells["End"].Value;
                    //adjust start/end according to target cell
                    appointment.End = schedulerCell.Date.AddMinutes(appointment.Duration.TotalMinutes);
                    appointment.Start = schedulerCell.Date;
                    appointment.Summary = string.Empty + draggedRow.RowInfo.Cells["Summary"].Value;
                    appointment.Description = string.Empty + draggedRow.RowInfo.Cells["Description"].Value;
                    appointment.Location = string.Empty + draggedRow.RowInfo.Cells["Location"].Value;
                    appointment.StatusId = (int)draggedRow.RowInfo.Cells["StatusId"].Value;
                    appointment.BackgroundId = (int)draggedRow.RowInfo.Cells["BackgroundId"].Value;
                    //this.radScheduler1.Appointments.Add(appointment);

                    dataRowView.Row.Table.Rows.Remove(dataRowView.Row);
                }
                else
                {
                    throw new ApplicationException("Unhandled Scenario");
                }
            }
        }

Which is working perfectly until I add this piece of code to it:

///attachments sub-row initialization
GridViewTemplate attachmentsTemplate = new GridViewTemplate();
attachmentsTemplate.AutoGenerateColumns = false;            
attachmentsTemplate.HierarchyDataProvider = new GridViewEventDataProvider(attachmentsTemplate);

GridViewTextBoxColumn columnMainJobID = new GridViewTextBoxColumn();
columnMainJobID.TextAlignment = ContentAlignment.MiddleCenter;
columnMainJobID.FieldName = "MainJobID";
columnMainJobID.IsVisible = false;
attachmentsTemplate.Columns.Add(columnMainJobID);

radGridView1.Templates.Add(attachmentsTemplate);

public void WriteToWordDocumentContinued(){

    m_document = new RadFlowDocument();
    m_editor = new RadFlowDocumentEditor(m_document);
    Section section = new Section(m_document);
    section.HasDifferentFirstPageHeaderFooter = true;
    section.PageMargins = new Telerik.Windows.Documents.Primitives.Padding(56.69, 94.49, 47.24, 66.14);
    m_document.Sections.Add(section);
    m_document.StyleRepository.AddBuiltInStyle(BuiltInStyleNames.GetHeadingStyleIdByIndex(1));


    Style MainTitle = new Style("MainTitle", StyleType.Character) { };
    MainTitle.CharacterProperties.UnderlinePattern.LocalValue = UnderlinePattern.Single;
    MainTitle.CharacterProperties.FontFamily.LocalValue = new ThemableFontFamily("Arial");
    MainTitle.CharacterProperties.FontSize.LocalValue = 32;
    MainTitle.CharacterProperties.FontWeight.LocalValue = System.Windows.FontWeights.Bold;
    m_document.StyleRepository.Add(MainTitle);

    Style HeaderParagraphStyle = new Style("HeaderParagraphStyle", StyleType.Paragraph) { };
    HeaderParagraphStyle.ParagraphProperties.LineSpacing.LocalValue = 16;
    HeaderParagraphStyle.ParagraphProperties.LineSpacingType.LocalValue = HeightType.Exact;
    HeaderParagraphStyle.ParagraphProperties.SpacingAfter.LocalValue = 0;
    HeaderParagraphStyle.ParagraphProperties.SpacingBefore.LocalValue = 0;

    Style HeaderTitleStyle = new Style("HeaderTitleStyle", StyleType.Paragraph) { };
    HeaderTitleStyle.ParagraphProperties.LineSpacing.LocalValue = 21.4;
    HeaderTitleStyle.ParagraphProperties.LineSpacingType.LocalValue = HeightType.Exact;
    HeaderTitleStyle.ParagraphProperties.SpacingAfter.LocalValue = 0;
    HeaderTitleStyle.ParagraphProperties.SpacingBefore.LocalValue = 0;
    HeaderTitleStyle.ParagraphProperties.TextAlignment.LocalValue = Alignment.Right;

    HeaderParagraphStyle.ParagraphProperties.TextAlignment.LocalValue = Alignment.Right;
    m_document.StyleRepository.Add(HeaderParagraphStyle);

    Style HeaderCharacterStyle = new Style("HeaderCharacterStyle", StyleType.Paragraph) { };
    HeaderCharacterStyle.CharacterProperties.FontFamily.LocalValue = new ThemableFontFamily("Arial");
    HeaderCharacterStyle.CharacterProperties.FontSize.LocalValue = 16;
    m_document.StyleRepository.Add(HeaderCharacterStyle);

    Style SubTitle = new Style("SubTitle", StyleType.Character) { };
    SubTitle.CharacterProperties.UnderlinePattern.LocalValue = UnderlinePattern.Single;
    SubTitle.CharacterProperties.FontFamily.LocalValue = new ThemableFontFamily("Arial");
    SubTitle.CharacterProperties.FontSize.LocalValue = 16;
    SubTitle.CharacterProperties.FontWeight.LocalValue = System.Windows.FontWeights.Bold;
    m_document.StyleRepository.Add(SubTitle);

    Style TopLines = new Style("TopLines", StyleType.Character) { };
    TopLines.CharacterProperties.FontFamily.LocalValue = new ThemableFontFamily("Arial");
    TopLines.CharacterProperties.FontSize.LocalValue = 16;
    TopLines.CharacterProperties.FontWeight.LocalValue = System.Windows.FontWeights.Bold;
    m_document.StyleRepository.Add(TopLines);

}

This is just minified version of the method where I am trying to instantiate my RadFlowDocument object. This method is being called in a parent class, even If I try to pass RadFlowDocument object from that class, it still causes the UI to break. 

Hello.

I am using RadRibbonBar (Main Form). I have multiple buttons in ribbon. Each button has different forms. I want dock them inside its Main Form on click. here is an example in below screenshot. I am unable to achieve the requirement.

Please note: The child form should dock exactly below the ribbon form. and also, the cross button (child form close button) should be present right after the tab (Child form name).

Please attach a zip file with a source code.

Thanks

Hi,

I would like to know how we get the clicked bar AxisLabelElement?

What I mean, is when I click on the chart View certain bar I would like to read its Axis label.

Many thanks in advance

Omar