Questions on UI for WinForms Forum

0 answers

98 views

Rotator with other control

Hello ...

I have question about rotator ...

can rotator insert with other form (in this case i have 3 forms, and i want to insert it all) that i have made

i have form with gridview, can it be insert into rotator...

can i have the example ? please

Thanks before.

Rotator

asked on 11 Oct 2018

3 answers

73 views

Different interval for each child control of the rotator

Hello there,

I have a rotator which rotates different web browser controls. I would like to play a video inside some of the browsers using the HTML5 <video> tag. The problem is that I need to rotate to the next control only when the video has finished playing. Is it possible to set different intervals for each of the rotator's children? If not then is there an event I can handle which occurs when the rotator starts rotating it's content?

Kind Regards.

Rotator

answered on 20 Mar 2018

1 answer

65 views

Serialization. Where are RadWebBrowserElement designtime properties stored?

I'm adding RadWebBrowserElement items to my rotator at run time.

To make it easier, I added a sample at design time and set up the properties for the embedded web browser in the property designer, eg suppressing errors, disabling links etc. I planned to copy/paste these from the designer.cs file into my factory, but I can only see the properties associated to the RadWebBrowserElement itself in the designer.cs file.

Where are they stored please?

Rotator

answered on 05 Feb 2018

2 answers

85 views

radrotator poor time keeping

Why is the radrotator seem to be poor at updating at it's defined intervals? The same thing also happens in First Look.

I thought that maybe the webbrowser element was slowing things down if it sensed it needed to update and repaint, but Im finding that using a rotator with 2 png files can take many seconds to recover after resizing a window, if it ever recovers (I get bored waiting after a minute or two) as it appears to stall.

Are there any hints to improve performance and prevent stalling please? I can't use the control if I can't rely on it working reliably.

Rotator

answered on 02 Feb 2018

2 answers

126 views

Winforms RadRotator web browser/script errors 'killing' Visual Studio 2017

Hi.

Using VS2017 with Telerik control set version 2018.1.116.40

I'm following the help document Telerik simple example for using the radrotator control and am having design time problems with script errors generated in visual studio every time I attempt to use the radwebbrowser item in the rotator.. I'm setting it to http://www.telerik.com. I've not tried any other URL. I've not had a chance to test suppressing script errors at runtime as I've no clue how to get beyond the design time problem :D

The errors are thrown by VS2017 itself and I can't break out of the constant stream of exception messages. I have to close it using task manager each time. Once VS reloads all sorts of corruptions seem to occur in VS's settings.

My only option is to go into the x.designer.cs file and delete references and code for the webbrowser item.

If its easily solveable then it might be useful to document this in the example so that users can fix it before it happens.

Can you help please?

Rotator

answered on 02 Feb 2018

2 answers

91 views

RadRotator display bug ?

Hi,

I'm currently using Telerik controls 2017.1, and i have a problem with RadRotator.

I have a control RadRotator, and 2 buttons (cf screenshot),

- right button code is only a "RadRotator1.Next()"

- left button code is only a "RadRotator.Previous()"

If i click really quickly many times on a button, my image disapears like screenshot.

If i put a stop point in my code, i see that the currentitem is the good, with the good index, but no image displayed.

An idea ? Thanks :)

Rotator

answered on 25 Oct 2017

1 answer

127 views

Rotator border removal

Hi guys,

I am having some trouble trying to remove the border from the radRotator control in a WinForms project. The control is on a normal form, and I have gone through all of the properties. I have set the BorderThickness property to '0', yet it still displays.

Any help would be appreciated!

Regards,

Mike

Rotator

answered on 16 May 2016

2 answers

145 views

RadRotator centering images

I've got a lot of images I need to load in from a directory into a project where I display a full-screened radrotator on a secondary monitor. I want to be able to show a slideshow of pictures, but I need them to properly fit the screen, and I'd like ones that are strange sizes to be horizontally and vertically centered. All of this seems to be working with my code so far except the centering part...

Here is my code:

Imports System.Windows.Forms

Imports Telerik.WinControls.UI

Imports System.IO

Imports System.Security.Cryptography

Public Class formSlideshow

Private Sub ShapedForm1_Load(sender As Object, e As EventArgs) Handles Me.Load

Me.FormBorderStyle = FormBorderStyle.None

Me.Bounds = GetSecondaryScreen().Bounds

Dim screensize As New Drawing.Size(Me.Width, Me.Height)

RadRotator1.Size = screensize

RadRotator1.Interval = (CInt(Val(formSettings.Interval)) * 1000)

If LoadImages() = True Then RadRotator1.Start()

End Sub

'--Get size and location of secondary monitor

Public Function GetSecondaryScreen() As System.Windows.Forms.Screen

For Each windowscreen As System.Windows.Forms.Screen In System.Windows.Forms.Screen.AllScreens

If Not windowscreen Is System.Windows.Forms.Screen.PrimaryScreen Then

Return windowscreen

End If

Next

Return Screen.PrimaryScreen

End Function

'--Load images into radRotator

Public Function LoadImages() As Boolean

Try

Dim imageslist As New List(Of String)

'--Get employees personal images

For Each employeeimage As String In Directory.GetFiles(formSettings.EmployeeDir)

If Path.GetExtension(employeeimage) = ".jpeg" Or Path.GetExtension(employeeimage) = ".png" Or Path.GetExtension(employeeimage) = ".jpg" Then

imageslist.Add(employeeimage)

End If

Next

'--Get default images

For Each defaultimage As String In Directory.GetFiles(formSettings.DefaultDir)

If Path.GetExtension(defaultimage) = ".jpeg" Or Path.GetExtension(defaultimage) = ".png" Or Path.GetExtension(defaultimage) = ".jpg" Then

imageslist.Add(defaultimage)

End If

Next

'--Randomize order of images

imageslist.Sort(New Randomizer(Of String)())

'--Add images to radRotator item list

For Each imagefile As String In imageslist

Dim newimage As Image = Image.FromFile(imagefile)

Dim rotatoritem As New RadImageItem()

rotatoritem.Image = ScaleImage(newimage, 768, 1366)

RadRotator1.Items.Add(rotatoritem)

Next

Return True

Catch ex As Exception

Return False

End Try

Return False

End Function

'--Shrink images to fit screen, proportionately

Public Function ScaleImage(ByVal OldImage As Image, ByVal TargetHeight As Integer, ByVal TargetWidth As Integer) As System.Drawing.Image

Try

Dim NewHeight As Integer = TargetHeight

Dim NewWidth As Integer = NewHeight / OldImage.Height * OldImage.Width

If NewWidth > TargetWidth Then

NewWidth = TargetWidth

NewHeight = NewWidth / OldImage.Width * OldImage.Height

End If

Return New Bitmap(OldImage, NewWidth, NewHeight)

Catch ex As Exception

Return Nothing

End Try

Return Nothing

End Function

End Class

Public Class Randomizer(Of T)

Implements IComparer(Of T)

'--Insures different instances are sorted in different orders

Private Shared Salter As New Random() '--Only as random as your seed

Private Salt As Integer

Public Sub New()

Salt = Salter.Next(Integer.MinValue, Integer.MaxValue)

End Sub

Private Shared sha As New SHA1CryptoServiceProvider()

Private Function HashNSalt(ByVal x As Integer) As Integer

Dim b() As Byte = sha.ComputeHash(BitConverter.GetBytes(x))

Dim r As Integer = 0

For i As Integer = 0 To b.Length - 1 Step 4

r = r Xor BitConverter.ToInt32(b, i)

Next

Return r Xor Salt

End Function

Public Function Compare(x As T, y As T) As Integer _

Implements IComparer(Of T).Compare

Return HashNSalt(x.GetHashCode()).CompareTo(HashNSalt(y.GetHashCode()))

End Function

End Class

Rotator

answered on 18 Sep 2015

3 answers

95 views

RadChartView in RadRotator

Dear,
I would like to know how I can add a radChartView a WinForms UI RadRotator

Rotator

answered on 10 Sep 2015

4 answers

161 views

Rotator with sliding images

Hi,

I want to have rotator with sliding images (including animated GIFs) (like ticker - left to right rotation). Here is my scenario.

(1) Receive continuous data from socket (no need to implement in sample code) in a thread. This thread in turn will add predefined images in the rotator based on data received. This means that this thread will keep on adding images to rotator 24X7 while rotator is rotating.

(2) Will any overflow occur in rotator as end number of images will be added during day? If there is limit, code should remove items from rotator if limit breach.

(3) I also want some label on top of each image where I can set some text.

Can we add any control dynamically in rotator, and it rotate like ticker? If yes I need some sample code on that too please.

Best Regards

Chandrak

Rotator