Declined
Last Updated: 16 Feb 2024 22:24 by ADMIN

C#. net core 6, winforms application, TekerikNuGet3 package source, UI.for.WinForms.AllControls.NetCore package 2022.2.622

I am trying to export selected cells from a RadGridView as a csv file.

When using "var exporter = new ExportToCSV(Dgv)" then "exporter.RunExport(fileName);" writes the csv file correctly. It exports every cell.

It doesn't support exporting selections so I wrote a function to do this . The one below is what I used in my project to test what I was doing. It initially writes the csv to a worksheet and wrote that using formatprovider to file, then I just created a stringbuilder adding quotes and appended that to the file afterwards.

Writing the worksheet, the csv values haven't been quoted, plus number fields have had leading zeros removed which proves to be a problem when telephone numbers are stored in a field.

So I googled and found the Settings property which is there to set csv options. But they are private, not public therefore I can't set up the csv propertly.

private void radButton1_Click(object sender, EventArgs e)
  {

    var workbook = new Workbook();
    var worksheet = workbook.Worksheets.Add();

    var rowIndex = 0;
    var columnIndex = -1;
    var sb = new StringBuilder();
    var prevColumnIndex = -1;

    // ForEach cell are accessed vertically then horizontally.
    foreach (var cell in Dgv.SelectedCells)
    {
      // Cell is included in selection even if it's invisible
      // so check visibility and ignore if it isnt
      if (!cell.ColumnInfo.IsVisible) continue;

      // At bottom of column, rownum will change. Watch for this
      // and reset x and y values
      var rowNum = cell.RowInfo.Index;
      if (rowNum != prevColumnIndex)
      {
        prevColumnIndex = rowNum;
        rowIndex = 0;
        columnIndex++;
        sb.AppendLine("");
      }
      else if (!string.IsNullOrEmpty(sb.ToString()))
        sb.Append(",");

      var value = cell.Value;
      worksheet.Cells[columnIndex, rowIndex++ ].SetValue(value.ToString());
      sb.Append($"\"{value.ToString()}\"");
    }

    var fileName = @"C:\temp\SampleFile.csv";

    IWorkbookFormatProvider formatProvider = new CsvFormatProvider();
    using var output = new FileStream(fileName, FileMode.Create);
    formatProvider.Export(workbook, output);
    output.Close();

    // Write contents of sb to the file for comparison sake
    File.AppendAllText(fileName, sb.ToString());

  }

Declined
Last Updated: 16 Feb 2024 20:30 by ADMIN
Fatching data from sql database in gridViewCommboBoxColumn select the value then retrieve data other column in the same Rows windows application in Vb.net
Declined
Last Updated: 16 Feb 2024 19:51 by ADMIN
Created by: Lior
Comments: 2
Category: GridView
Type: Bug Report
0

i am getting a null reference exception with the following call stack:

 

Description: The process was terminated due to an unhandled exception.

Exception Info: System.NullReferenceException

   at Telerik.WinControls.UI.TableViewRowLayoutBase.GetRowHeight(Telerik.WinControls.UI.GridViewRowInfo)

   at Telerik.WinControls.UI.RowElementProvider.GetElementSize(Telerik.WinControls.UI.GridViewRowInfo)

   at Telerik.WinControls.UI.ItemScroller`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].GetScrollHeight(System.__Canon)

   at Telerik.WinControls.UI.ItemScroller`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].ScrollDown(Int32)

   at Telerik.WinControls.UI.ItemScroller`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].ScrollTo(Int32)

   at Telerik.WinControls.UI.ItemScroller`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].scrollbar_ValueChanged(System.Object, System.EventArgs)

   at Telerik.WinControls.UI.RadScrollBarElement.OnValueChanged(Int32, Int32)

   at Telerik.WinControls.UI.RadScrollBarElement.set_Value(Int32)

   at Telerik.WinControls.UI.ItemScroller`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].UpdateScrollValue()

   at Telerik.WinControls.UI.ItemScroller`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].UpdateScrollRange()

   at Telerik.WinControls.UI.RowScroller.UpdateScrollRange()

   at Telerik.WinControls.UI.GridTableElement.UpdateNoDataText()

   at Telerik.WinControls.UI.GridTableElement.UpdateAll()

   at Telerik.WinControls.UI.GridTableElement.UpdateViewCore(System.Object, Telerik.WinControls.UI.DataViewChangedEventArgs)

   at Telerik.WinControls.UI.GridTableElement.UpdateView(System.Object, Telerik.WinControls.UI.DataViewChangedEventArgs)

   at Telerik.WinControls.UI.GridTableElement.ProcessTemplateEvent(Telerik.WinControls.UI.GridViewEvent)

   at Telerik.WinControls.UI.GridTableElement.Telerik.WinControls.UI.IGridViewEventListener.ProcessEvent(Telerik.WinControls.UI.GridViewEvent)

   at Telerik.WinControls.UI.GridViewEventProcessEntity.ProcessCollection(Telerik.WinControls.UI.GridViewEvent, Telerik.WinControls.UI.PriorityWeakReferenceList, Telerik.WinControls.UI.GridEventProcessMode)

   at Telerik.WinControls.UI.GridViewEventProcessEntity.ProcessEvent(Telerik.WinControls.UI.GridViewEvent)

   at Telerik.WinControls.UI.GridViewSynchronizationService.NotifyListeners(Telerik.WinControls.UI.GridViewEvent)

   at Telerik.WinControls.UI.GridViewSynchronizationService.FlushEvents()

   at Telerik.WinControls.UI.GridViewSynchronizationService.DispatchEvent(Telerik.WinControls.UI.GridViewEvent)

   at Telerik.WinControls.UI.GridViewSynchronizationService.DispatchEvent(Telerik.WinControls.UI.GridViewTemplate, Telerik.WinControls.UI.GridViewEvent, Boolean)

   at Telerik.WinControls.UI.GridViewTemplate.DispatchEvent(Telerik.WinControls.UI.GridViewEvent, Boolean)

   at Telerik.WinControls.UI.GridViewTemplate.DispatchDataViewChangedEvent(System.Object, Telerik.WinControls.UI.DataViewChangedEventArgs)

   at Telerik.WinControls.UI.GridViewTemplate.OnViewChanged(System.Object, Telerik.WinControls.UI.DataViewChangedEventArgs)

   at Telerik.WinControls.UI.MasterGridViewTemplate.OnViewChanged(System.Object, Telerik.WinControls.UI.DataViewChangedEventArgs)

   at Telerik.WinControls.UI.GridViewTemplate.EndUpdate(Boolean, Telerik.WinControls.UI.DataViewChangedEventArgs)

   at Telerik.WinControls.UI.MasterGridViewTemplate.EndUpdate(Boolean, Telerik.WinControls.UI.DataViewChangedEventArgs)

   at Telerik.WinControls.UI.GridViewTemplate.set_RowCount(Int32)

   at Telerik.WinControls.UI.RadGridView.set_RowCount(Int32)

   at Communication_Logger.frmCommunicationLogger.RadRibbonForm1_OnDataReceived(Communication_Logger.Data)

   at Communication_Logger.ChannelClass.Serial_DataReceived(System.Object, System.IO.Ports.SerialDataReceivedEventArgs)

   at System.IO.Ports.SerialPort.CatchReceivedEvents(System.Object, System.IO.Ports.SerialDataReceivedEventArgs)

   at System.IO.Ports.SerialStream+EventLoopRunner.CallReceiveEvents(System.Object)

   at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(System.Object)

   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)

   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)

   at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()

   at System.Threading.ThreadPoolWorkQueue.Dispatch()

   at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()

 

the setup is a dotNet 4.5.2 winforms application with RadGridView in virtual mode.

The exception occur when the application is left working for days (2 in this case) without any user interaction.

The application normally updates a list that is used by the gridview, the list records are added and removed continuously, the grid view RowCount is updated via a timer.

i suspect that the RowCount reported at one point in time doesn't match the list size as it is trimmed, and therfore the GetRowHeight fails as the data doesn't exist - can this be handled in the gridview - to avoid a termination of the process due to the exception ?

 

regards,

guy.

 

Declined
Last Updated: 27 Jul 2023 12:43 by ADMIN
When the FreeFormDateTime mask type is used with the RadDateTimeEditor, the Validate method is not called again after entering an invalid value. Even if we type a valid date afterward, the control rollback to the previous value of the cell.
Declined
Last Updated: 27 May 2022 14:15 by ADMIN
Scheduled for R2 2022 SP1
The decimal separator is removed when exporting with German culture on Windows Server 2012
Declined
Last Updated: 25 Mar 2022 11:39 by Ian
Created by: Ian
Comments: 6
Category: GridView
Type: Feature Request
0

Eery time I use the GridView, I have to remember to un-select the last item in the list.

This is almost always to wrong thing to be selected - so why select it by default?

..and the way to swith this 'feaure' off isn't obvious - I always have to look it up....RadGridView1.CurrentRow = Nothing

Declined
Last Updated: 16 Feb 2022 05:23 by ADMIN
Created by: alex
Comments: 3
Category: GridView
Type: Feature Request
0

Hi. it was great to see the option "ImageOnly", for columns of small width, where only the image is placed in the header, and the "HederText" property was set, for the correct display of the grouping field

GridViewDataColumn column;

column.HeaderText = "Счет";

column.HeaderImage = ...; // some img

column.TextImageRelation = TextImageRelation.Overlay;



GridViewDataColumn column;

column.HeaderText = "";

column.HeaderImage = ...; // some img

column.TextImageRelation = TextImageRelation.Overlay;

it’s impossible to choose one thing, either an ugly header, or a grouping without a description

Declined
Last Updated: 04 Jan 2022 16:02 by ADMIN

To reproduce:

 

        public RadForm1()
        {
            InitializeComponent();

            string txt = "what follows is test characters (some of) which should cause error:  เปลี่ยน UPS ที่ห้อง Truck scale เนื่องจากเมื่อวันพฤหัสที่ 13 มีการออฟเบรกเกอร์ที่ ฺฺB/H แต่ว่า เครื่องคอมพิวเตอร์ที่ T/S ดับ ตัว UPS ไม่ทำงาน ทำให้ข้อมูลขณะนั้นหายไป   ";
            this.label1.Text = txt; // No error

            Font font = this.label1.Font;// new Font("Segoe UI", 9.5f, FontStyle.Regular);
            this.radLabel1.Font = font;
            this.radLabel1.Text = txt; //GDI error
        }

Workaround: 

this.radLabel1.UseCompatibleTextRendering = false;

Declined
Last Updated: 19 Nov 2021 09:52 by ADMIN
Created by: dev
Comments: 4
Category: GridView
Type: Bug Report
1

Hi,

I have a question regarding RadGridView. When I edit a cell in GridView and then click on a button (outside of gridview) immediately (i.e I don't click on another cell to exit edit mode), the Gridview is still edit mode. Please refer to the short video named "Without Using EndEdit()" to easily understand my point here.

In order to exit the edit mode, I try the following code:

    Private Sub CustomGridView_LostFocus(sender As Object, e As EventArgs) Handles Me.LostFocus
        Me.EndEdit()
    End Sub

With this code, the gridview does exit the edit mode when I click on another button. But there is a problem with this method is that afterwards, I cannot edit the cell anymore.  Please refer to the short video named "Using EndEdit()" to better understand the problem.

So my question here is, is there any way that I can exit edit mode when clicking on another button right after editing a cell?

Thank you for your help.

Best regards,

Tran

 

 
Declined
Last Updated: 06 Oct 2021 08:23 by ADMIN
To reproduce: please open the attached sample project and follow the steps illustrated in the attached gif file.

Workaround: 
1. You still can scroll while dragging a row by using the mouse wheel.

2. Use the grid in unbound mode and set the AllowRowReorder property to true instead of using a custom RadDragDropService.

3. Use a custom drag and drop service:

public class CustomDragDropService : RadGridViewDragDropService
{
    public CustomDragDropService(RadGridViewElement gridViewElement) : base(gridViewElement)
    {
    }

    public override string Name
    {
        get
        {
            return typeof(RadGridViewDragDropService).Name;
        }
    }

    protected override void HandleMouseMove(System.Drawing.Point mousePosition)
    {
        base.HandleMouseMove(mousePosition);
        System.Drawing.Point location = this.GridViewElement.ElementTree.Control.PointToClient(Control.MousePosition);
        GridTableElement tableElement = this.GetTableElementAtPoint(location);

        ISupportDrag supportDrag = this.Context as ISupportDrag;
        object dataContext = supportDrag.GetDataContext();

        if (this.AllowAutoScrollRowsWhileDragging && dataContext == null)
        {
            ScrollRows(tableElement, location);
        }
    }

    private void ScrollRows(GridTableElement tableElement, System.Drawing.Point location)
    {
        ScrollableRowsContainerElement scrollableRows = tableElement.ViewElement.ScrollableRows;
        RadScrollBarElement vScrollbar = GetVeritcalScrollbar(tableElement);
        System.Drawing.Rectangle containerBounds = scrollableRows.ControlBoundingRectangle;

        if (containerBounds.Contains(location) ||
            location.X < containerBounds.X ||
            location.X > containerBounds.Right)
        {
            return;
        }

        int delta = 0;

        if (location.Y > containerBounds.Bottom)
        {
            delta = location.Y - containerBounds.Bottom;
        }
        else if (location.Y < containerBounds.Y)
        {
            delta = location.Y - containerBounds.Y;
        }

        if (delta != 0 && vScrollbar.Visibility == ElementVisibility.Visible)
        {
            vScrollbar.Value = ClampValue(vScrollbar.Value + delta,
                vScrollbar.Minimum,
                vScrollbar.Maximum - vScrollbar.LargeChange + 1);
        }
    }

    private int ClampValue(int value, int minimum, int maximum)
    {
        if (value < minimum)
        {
            return minimum;
        }
        if (maximum > 0 && value > maximum)
        {
            return maximum;
        }
        return value;
    }

    private RadScrollBarElement GetVeritcalScrollbar(GridTableElement tableElement)
    {
        if (GridViewElement.UseScrollbarsInHierarchy)
        {
            return tableElement.VScrollBar;
        }
        return GridViewElement.TableElement.VScrollBar;
    }
}

public RadForm1()
{
    InitializeComponent();
    CustomDragDropService customService = new CustomDragDropService(radGridView1.GridViewElement);
    radGridView1.GridViewElement.RegisterService(customService);
}
Declined
Last Updated: 14 Jun 2021 09:13 by ADMIN
  1. Using a RadGriditem
  2. Set AllowSearchRow to false as default
  3. Add a RadButton or something else to toggle AllowSearchRow
  4. Toggling works as long the "x" in the search mask is not used

When the "x" is used it seems that AllowSearchRow is not set to false because the toggle button has then to be pressed twice to show up the search mask again.

Declined
Last Updated: 06 Apr 2021 13:19 by ADMIN
Created by: Trustteam
Comments: 1
Category: GridView
Type: Bug Report
0

Hi,

I want to extend the RadGridView control, so I do "public class TkGrid : Telerik.WinControls.UI.RadGridView {}"

How do I apply a theme to TkGrid control ? I set "ThemeResolutionService.ApplicationThemeName = "FluentDark" but this doesn't work.

 

I attached a small project where I have one TkGrid and one RadGridView. On top of form there is a dropdown from where you can change the theme

When I do this, TkGrid is not displayed with the new theme (this works for RadGridView)

 

p.s. I also added a custom Button, TkButton inherited from RadButton. When I change the theme, the look of TkButton is changed, so this is ok

 

Declined
Last Updated: 02 Apr 2021 09:15 by ADMIN
Created by: Trustteam
Comments: 3
Category: GridView
Type: Feature Request
0

Hi,

I want to add a MultiComboBoxColumn to a GridView

is it possible to define the columns for this MultiComboBox at design time (in Property Builder editor of Grid) ?

Declined
Last Updated: 30 Nov 2020 14:56 by ADMIN
Created by: Brandon
Comments: 1
Category: GridView
Type: Feature Request
1
Within the CellEndEdit event, the GridViewCellEventArgs should contain an item to Cancel/Undo which will revert the value of the cell back to the value it had when CellBeginEdit was called.
Declined
Last Updated: 28 Jan 2020 09:56 by ADMIN

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

Workaround: scroll to the top and then to the bottom again to update the scrollbar's range

Declined
Last Updated: 12 Nov 2019 14:52 by ADMIN

Using a custom control using the Telerik Presentation Framework, I am receiving a NullException inside the GridCheckBoxHeaderCellElement during the GridViewElement's data load.

The custom control construction follows an example I found somewhere (reference is lost to me at this point):

ControlContainingGridView inherits from RadControl

CreateChildItems creates and adds ControlContainingGridViewElement

 

ControlContainingGridViewElement inherits from RadElement

CreateChildItems creates and adds some layout controls AND a GridViewElement

 

public partial class ControlContainingGridView : RadControl {
        public ControlContainingGridView() {
            InitializeComponent();
            this.TextChanged += ControlContainingGridView_TextChanged;
        }

        private void ControlContainingGridView_TextChanged(object sender, EventArgs e) {
            controlContainingGridViewElement.Text = this.Text;
        }

        private ControlContainingGridViewElement controlContainingGridViewElement = null;


        protected override void CreateChildItems(RadElement parent) {
            controlContainingGridViewElement = new ControlContainingGridViewElement();
            this.RootElement.Children.Add(controlContainingGridViewElement);
            base.CreateChildItems(parent);
        }

        public object DataSource {
            get {
                return controlContainingGridViewElement.GridView.Template.DataSource;
            }
            set {
                try {
                    controlContainingGridViewElement.GridView.Template.DataSource = value;
                } catch (Exception ex) {
                    Debug.WriteLine(ex);
                }
            }
        }

        internal void SetupColumns(Action<MasterGridViewTemplate> setupColumns) {
            controlContainingGridViewElement.GridView.Template.AutoGenerateColumns = false;
            setupColumns(controlContainingGridViewElement.GridView.Template);
        }



    }

    public class ControlContainingGridViewElement : RadElement {

        private TextPrimitive textPrimitive = null;
        private RadButtonElement addButton = null;
        private RadButtonElement deleteButton = null;
        private RadGridViewElement gridViewElement = null;

        public RadGridViewElement GridView { get { return gridViewElement; } }

        public bool ShowAddButton { get { return addButton.Visibility == ElementVisibility.Visible; } set { addButton.Visibility = value ? ElementVisibility.Visible : ElementVisibility.Collapsed; } }
        public bool ShowDeleteButton { get { return deleteButton.Visibility == ElementVisibility.Visible; } set { deleteButton.Visibility = value ? ElementVisibility.Visible : ElementVisibility.Collapsed; } }

        public string Text { get { return textPrimitive.Text; } set { textPrimitive.Text = value; } }

        protected override void CreateChildElements() {
            DockLayoutPanel dlp = new DockLayoutPanel();
            dlp.StretchHorizontally = true;
            dlp.StretchHorizontally = true;
            dlp.LastChildFill = true;

            DockLayoutPanel dlpBar = new DockLayoutPanel();
            dlpBar.StretchHorizontally = true;
            DockLayoutPanel.SetDock(dlpBar, Dock.Top);


            var imagePrimitive = new ImagePrimitive();
            DockLayoutPanel.SetDock(imagePrimitive, Dock.Left);

            textPrimitive = new TextPrimitive();
            DockLayoutPanel.SetDock(textPrimitive, Dock.Left);

            var slp = new StackLayoutPanel();
            DockLayoutPanel.SetDock(slp, Dock.Right);

            var addButton = new RadButtonElement {
                Text = "Add",
                MaxSize = new Size() { Height = 20 }
            };
            var deleteButton = new RadButtonElement {
                Text = "Del",
                MaxSize = new Size() { Height = 20 }
            };

            slp.Children.Add(addButton);
            slp.Children.Add(deleteButton);


            dlpBar.Children.Add(slp);
            dlpBar.Children.Add(imagePrimitive);
            dlpBar.Children.Add(textPrimitive);



            gridViewElement = new RadGridViewElement {
                StretchHorizontally = true,
                StretchVertically = true
            };
            gridViewElement.Template.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;
            gridViewElement.Template.AllowAddNewRow = false;
            gridViewElement.Template.AllowDeleteRow = false;
            gridViewElement.Template.AllowDragToGroup = false;
            gridViewElement.ShowGroupPanel = false;
            gridViewElement.ShowGroupPanelScrollbars = false;

            dlp.Children.Add(dlpBar);
            dlp.Children.Add(gridViewElement);



            this.Children.Add(dlp);
            base.CreateChildElements();
        }

    }

 

During Form load, I programmatically add columns and provide a binding source

 

private List<SampleModel> sampleModels = new List<SampleModel>();
        private BindingSource sampleModelsBinding = new BindingSource();

        private void RadForm1_Load(object sender, EventArgs e) {

            sampleModels.Add(new SampleModel() {
                When = DateTime.Parse("1980-04-23"),
                SomeText = "Purple Bananas",
                IsTrue = true
            });
            sampleModels.Add(new SampleModel() {
                When = DateTime.Parse("2002-07-20"),
                SomeText = "Ball & Chain",
                IsTrue = false
            });
            sampleModelsBinding.DataSource = sampleModels;

            controlContainingGridView.SetupColumns((grid) => {
                grid.AddDateTimeColumn(nameof(SampleModel.When), "When");
                grid.AddTextBoxColumn(nameof(SampleModel.SomeText), "Some Text");
                grid.AddCheckBoxColumn(nameof(SampleModel.IsTrue), "Is True");
            });

            controlContainingGridView.DataSource = sampleModelsBinding;

        }

 

Inclusion of the CheckBox column results in the following error:

Exception thrown: 'System.NullReferenceException' in Telerik.WinControls.GridView.dll

System.NullReferenceException: Object reference not set to an instance of an object.
   at Telerik.WinControls.UI.GridCheckBoxHeaderCellElement.Attach(GridViewColumn data, Object context)
   at Telerik.WinControls.UI.BaseVirtualizedContainer`1.InsertElement(Int32 position, IVirtualizedElement`1 element, T data)
   at Telerik.WinControls.UI.BaseVirtualizedContainer`1.UpdateElement(Int32 position, T data)
   at Telerik.WinControls.UI.BaseVirtualizedContainer`1.MeasureElements()
   at Telerik.WinControls.UI.BaseVirtualizedContainer`1.MeasureOverride(SizeF availableSize)
   at Telerik.WinControls.RadElement.MeasureCore(SizeF availableSize)
   at Telerik.WinControls.RadElement.Measure(SizeF availableSize)
   at Telerik.WinControls.UI.GridVirtualizedRowElement.MeasureElements(SizeF availableSize, SizeF clientSize, Padding borderThickness)
   at Telerik.WinControls.UI.LightVisualElement.MeasureOverride(SizeF availableSize)
   at Telerik.WinControls.UI.GridRowElement.MeasureOverride(SizeF availableSize)
   at Telerik.WinControls.RadElement.MeasureCore(SizeF availableSize)
   at Telerik.WinControls.RadElement.Measure(SizeF availableSize)
   at Telerik.WinControls.UI.VirtualizedStackContainer`1.MeasureElementCore(RadElement element, SizeF availableSize)
   at Telerik.WinControls.UI.ScrollableRowsContainerElement.MeasureElementCore(RadElement element, SizeF availableSize)
   at Telerik.WinControls.UI.VirtualizedStackContainer`1.MeasureElement(IVirtualizedElement`1 element)
   at Telerik.WinControls.UI.PinnedRowsContainerElement.MeasureElement(IVirtualizedElement`1 element)
   at Telerik.WinControls.UI.BaseVirtualizedContainer`1.MeasureElements()
   at Telerik.WinControls.UI.BaseVirtualizedContainer`1.MeasureOverride(SizeF availableSize)
   at Telerik.WinControls.UI.ScrollableRowsContainerElement.MeasureOverride(SizeF availableSize)
   at Telerik.WinControls.RadElement.MeasureCore(SizeF availableSize)
   at Telerik.WinControls.RadElement.Measure(SizeF availableSize)
   at Telerik.WinControls.UI.RowsContainerElement.MeasureOverride(SizeF availableSize)
   at Telerik.WinControls.RadElement.MeasureCore(SizeF availableSize)
   at Telerik.WinControls.RadElement.Measure(SizeF availableSize)
   at Telerik.WinControls.UI.ScrollViewElement`1.MeasureViewElement(SizeF availableSize)
   at Telerik.WinControls.UI.ScrollViewElement`1.MeasureView(SizeF availableSize)
   at Telerik.WinControls.UI.ScrollViewElement`1.MeasureOverride(SizeF availableSize)
   at Telerik.WinControls.UI.GridTableElement.MeasureOverride(SizeF availableSize)
   at Telerik.WinControls.RadElement.MeasureCore(SizeF availableSize)
   at Telerik.WinControls.RadElement.Measure(SizeF availableSize)
   at Telerik.WinControls.Layouts.DockLayoutPanel.MeasureOverride(SizeF constraint)
   at Telerik.WinControls.RadElement.MeasureCore(SizeF availableSize)
   at Telerik.WinControls.RadElement.Measure(SizeF availableSize)
   at Telerik.WinControls.Layouts.ContextLayoutManager.UpdateLayout()
   at Telerik.WinControls.UI.GridVisibilityHelper.EnsureRowVisible(GridViewRowInfo rowInfo)
   at Telerik.WinControls.UI.GridTableElement.EnsureRowVisible(GridViewRowInfo rowInfo)
   at Telerik.WinControls.UI.GridTableElement.EnsureCellVisible(GridViewRowInfo rowInfo, GridViewColumn column)
   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.RaiseCurrentChanged(GridViewTemplate template, GridViewRowInfo row, GridViewColumn column, Boolean user)
   at Telerik.WinControls.UI.GridViewTemplate.CollectionView_CurrentChanged(Object sender, EventArgs e)
   at System.EventHandler.Invoke(Object sender, EventArgs e)
   at Telerik.WinControls.Data.RadCollectionView`1.OnCurrentChanged(EventArgs args)
   at Telerik.WinControls.Data.RadCollectionView`1.SetCurrentPositionCore(Int32 newPosition, Boolean forceNotify, CurrentChangeReason reason)
   at Telerik.WinControls.Data.RadListSource`1.InitializeCurrentItem()
   at Telerik.WinControls.Data.RadListSource`1.Initialize()
   at Telerik.WinControls.Data.RadListSource`1.Bind(Object dataSource, String dataMember)
   at Telerik.WinControls.Data.RadListSource`1.set_DataSource(Object value)
   at Telerik.WinControls.UI.GridViewTemplate.set_DataSource(Object value)
   at BugReproduction.ControlContainingGridView.set_DataSource(Object value) in ...\BugReproduction\BugReproduction\ControlContainingGridView.cs:line 42

Declined
Last Updated: 27 Sep 2019 10:43 by ADMIN
ADMIN
Created by: Telerik Admin
Comments: 5
Category: GridView
Type: Bug Report
1
Hi,

Following to the workaroud (flag IsSearchAsync) provided (https://feedback.telerik.com/Project/154/Feedback/Details/245938-fix-radgridview-having-groups-filters-sort-descriptors-and-search-query-in-t), we discovered two issues :

1) the behavior of the grid is changed while using IsSearchAsync as true or false (see 2018-08-01_1849_DragDrop_behavior_with_IsSearchAsync.swf video attached). When set to true, the line found by the searchbox is automatically reselected. When the flag is set to false, it's not the case.

2) while playing with drag&drop, after some time the grid became unstable (see 2018-08-01_1847_-_dragdrop_issue_with_IsAsyncSearch.swf video attached). You can see that at the beginning, the D&D works fine. At 0:20 I can't select any line, and when I try to D&D, it drops always the same customer. At 0:40 you can see that even the SearchBox is broken and the progressbar is looping forever
Declined
Last Updated: 13 Sep 2019 07:11 by ADMIN
To reproduce: please refer to the attached sample project and gif file

Workaround:

            GridViewSpreadExport spreadExporter = new GridViewSpreadExport(this.radGridView1);
            spreadExporter.ExportFormat = SpreadExportFormat.Pdf;
            spreadExporter.ExportVisualSettings = true;
            SpreadExportRenderer exportRenderer = new SpreadExportRenderer();
            spreadExporter.RunExport(exportFile, exportRenderer);
            Process.Start(exportFile);
Declined
Last Updated: 05 Jun 2019 12:21 by ADMIN
Declined
Last Updated: 16 May 2019 08:17 by ADMIN
1. Create a new project and setup hierarchy
2. Add a large number of rows as child rows to the last row at first level
3. Run the project and try to expand the last row
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