By default, if you need to format the cells in RadCalendar, the ElementRender event is an appropriate solution. However, it doesn't process the row/column header cell elements illustrated in the attached screenshot.

Workaround:

            MonthViewElement mve = (MonthViewElement)this.radCalendar1.CalendarElement.CalendarVisualElement;
            foreach (CalendarCellElement cell in mve.TableElement.Children)
            {
                if (cell.Row == 0)
                {
                    cell.DrawFill = true;
                    cell.BackColor = Color.Red;
                } 
            } 

Please refer to the attached sample project and run it. Select a random item and press the button. You will obtain the error. If no selection is available, the item is removed as expected. 

Workaround: use Begin/EndUpdate block while deleting a record from the DataTable:

        Me.RadGanttView1.BeginUpdate()
        _dataset.Tables("Tasks").Rows.RemoveAt(2)
        Me.RadGanttView1.EndUpdate()

Please run the attached sample project and follow the steps illustrated in the attached gif file. The following exception occurs:

System.ArgumentException
  HResult=0x80070057
  Message=Rectangle '{X=0,Y=35,Width=156.3333,Height=0}' cannot have a width or height equal to 0.
  Source=System.Drawing
  StackTrace:
   at System.Drawing.Drawing2D.LinearGradientBrush..ctor(RectangleF rect, Color color1, Color color2, Single angle, Boolean isAngleScaleable)
   at System.Drawing.Drawing2D.LinearGradientBrush..ctor(RectangleF rect, Color color1, Color color2, Single angle)
   at Telerik.WinControls.UI.Gauges.LinearGaugeBrushFactory.CreateBrush(GaugeVisualElement owner, GaugeBrushType type)
   at Telerik.WinControls.UI.Gauges.LinearGaugeBar.Paint(Graphics graphics, Rectangle boundingRectangle)
   at Telerik.WinControls.UI.Gauges.LinearGaugeBar.PaintElement(IGraphics graphics, Single angle, SizeF scale)
   at Telerik.WinControls.RadElement.DoOwnPaint(IGraphics graphics, Single angle, SizeF scale)
   at Telerik.WinControls.RadElement.Paint(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadItem.PaintOverride(IGraphics screenRadGraphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChild(RadElement child, IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.VisualElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.Paint(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadItem.PaintOverride(IGraphics screenRadGraphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChild(RadElement child, IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.VisualElement.PaintChildren(IGraphics graphics, Rectangle clipRectange, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadElement.Paint(IGraphics graphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadItem.PaintOverride(IGraphics screenRadGraphics, Rectangle clipRectangle, Single angle, SizeF scale, Boolean useRelativeTransformation)
   at Telerik.WinControls.RadControl.OnPaint(PaintEventArgs e)
   at System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer)
   at System.Windows.Forms.Control.WmPaint(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at Telerik.WinControls.RadControl.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)

IMPORTANT: If both colors are changed at design time and you set the Value of RadLinearGauge to 0, this will provoke a similar error leading Visual Studio to crash.

Workaround: specify a minimum width/height for the gauge:

this.radLinearGauge1.MinimumSize = new Size(1, (int)this.linearGaugeBar1.Offset+1);

 

 

The FulentDarkTheme sets a transparent background which results in a slow resizing. 

Workaround:

this.TabbedFormControl.RootElement.BackColor = Color.Black;

Changing the preferred width of columns to percentages from the Table Properties dialog actually sets them in pixels.

Steps to reproduce:
1) Insert a table

2) select table column property and set preferred width to 20%

3) press "next column" button and set preferred width to 20% 

4) Go to previous columns 

Expected: Column width is set in percentage.

Actual: Some (or all) columns have width set in pixels.

Dear Sir/Madam,

 

I have a docx document and want to display it in flow layoutmode. It works normally except it cannot show header at the beginning of the document and footer at the end of the document. Please help.

My code is similar as follows (Rte is the RadRichTextEditor control):

 

DocumentFormatProviderBase provider = new DocxFormatProvider();

Rte.SuspendLayout();

Rte.Document = provider.Import([Docx in byte array]);

Rte.RichTextBoxElement.BackColor = Color.White;

Telerik.WinControls.RichTextEditor.UI.DocumentWebLayoutPresenter presenter = (Telerik.WinControls.RichTextEditor.UI.DocumentWebLayoutPresenter)rte.RichTextBoxElement.ActiveEditorPresenter;

presenter.BackColor = Color.White;

presenter.Margin = new Padding(20);

Rte.ResumeLayout();

Rte.PerformLayout(); 

To reproduce:
1. Add a pin to the map.
radMap1.Layers.Add(new MapLayer("PinLayer"));
MapPin pin = new MapPin(new Telerik.WinControls.UI.Map.PointG(47.60357, -122.32945));
pin.BackColor = Color.Red;
radMap1.Layers[0].Add(pin);
2. Run the project and zoom out.
3. Resize vertically the map(form).

Workaround:
Call Pan method to recalculate RadMapElement.ViewportInPixels on SizeChanged. 
private void RadMap1_SizeChanged(object sender, EventArgs e)
{
    this.radMap1.Pan(this.radMap1.MapElement.PanOffset.Width, this.radMap1.MapElement.PanOffset.Height);
}

To reproduce:

private void RadButton5_Click(object sender, EventArgs e)
{
    RadButton labelControl = new RadButton();
    labelControl.Size = new Size(200, 30);
    labelControl.Text = "Test";

    layoutControlItem1.AssociatedControl = labelControl;
}

Workaround: 
private void RadButton5_Click(object sender, EventArgs e)
{
    RadButton labelControl = new RadButton();
    labelControl.Size = new Size(200, 30);
    labelControl.Text = "Test";

    ((RadLayoutControlControlCollection)this.radLayoutControl1.Controls).RemoveInternal(layoutControlItem1.AssociatedControl);
    ((RadLayoutControlControlCollection)this.radLayoutControl1.Controls).AddInternal(labelControl);
    layoutControlItem1.AssociatedControl = labelControl;

    layoutControlItem1.UpdateControlBounds();
   
}

If I set .InitialDirectory to a network path, the Tree Navigation Pane shows multiple instances of the network path. I've collapsed several of them so you can see it more easily in the image. Am I missing a setting? Can this be prevented in the Directory Requesting sub?

Maybe I'm doing this wrong but it works with the standard .Net SaveFileDialog. No matter how many filters I add or which FilterIndex I set, the last filter is always activated.

To reproduce:

this.radMaskedEditBox1.Mask = "n";
this.radMaskedEditBox1.MaskType = Telerik.WinControls.UI.MaskType.Numeric;
radMaskedEditBox1.Value = 1234;
radMaskedEditBox1.MaskedEditBoxElement.Culture = new CultureInfo("en-CA") { NumberFormat = { NumberDecimalDigits = 0, NumberGroupSeparator = String.Empty } };

 

Please run the attached sample project. Select one of the child tasks and click the button. The new task is expected to be inserted at the selected item's position. However, it is appended at the bottom as it is demonstrated in the gif file.

Workaround: rebind RadGanttView after inserting a new row to the DataTable: 

    Private Sub RadButton1_Click(sender As Object, e As EventArgs) Handles RadButton1.Click
        Try
            If Me.RadGanttView1.SelectedItem IsNot Nothing Then
                Dim i_rowIndex As Int32 = _dataset.Tables("Tasks").Rows.IndexOf(Me.RadGanttView1.SelectedItem.DataBoundItem.Row)
                Dim i_datarow As DataRow = _dataset.Tables("Tasks").NewRow
                Dim i_startDate As Date = New Date(Today.Year, Today.Month, Today.Day, 8, 0, 0)
                i_datarow("ID") = 3001
                i_datarow("ParentID") = _projektID
                i_datarow("Bezeichnung") = "inserted Aufgabe"
                i_datarow("Start") = i_startDate.AddHours(6 * 5)
                i_datarow("Ende") = i_startDate.AddHours(6 + 100)
                _dataset.Tables("Tasks").Rows.InsertAt(i_datarow, i_rowIndex)
                Me.RadGanttView1.DataSource = Nothing
                With Me.RadGanttView1.GanttViewElement
                    .TaskDataMember = "Tasks"
                    .ChildMember = "ID"
                    .ParentMember = "ParentID"
                    .TitleMember = "Bezeichnung"
                    .StartMember = "Start"
                    .EndMember = "Ende"
                End With
                Me.RadGanttView1.DataSource = _dataset
            End If
        Catch ex As Exception
            MsgBox(ex.Message)
        End Try
    End Sub

 

Please run the attached sample and move the spreadsheet on a monitor with 125% DPI scaling. Then, enter some text in the first cell that exceeds the column's width and double-click the header to best-fit the column. You will notice that RadSpreadsheet hangs and it is not possible to proceed with the further execution of the form.

Hello, i am using the GridViewSpreadStreamExport to export a gridview with parent and child rows.
Everithing works fine but is it possible to set the parent row to collapsed, if there are child rows?

Please run the attached sample project, click the button to start drawing and following the steps illustrated in the gif file.

I'd like to prevent the possibility of an end-user deleting or copying files while saving a file. Is this possible in the RadOpenFileDialog?

RadPdfViewer partially supports CCITTFaxDecode (that is basically TIFF). There are some limitations that are not supported at this stage like EncodedByteAlign = true or Group 3, 2-D encoding.

A dictionary specifying any resources (such as fonts and images) required by the form XObject (see Section 3.7 from http://partners.adobe.com/public/developer/en/pdf/PDFReference.pdf

Please follow the steps:

1. Run the attached sample project. 

2. Move the form to a monitor with 125% DPI scaling.

3. Resize the form to make the spreadsheet bigger. You will notice that the column/row headers are missing for the last column/row headers.