Questions on UI for WinForms Forum

17 answers

128 views

Dear sir,
i want to show RadialGauge in Gridview in Telerik UI winform using in Desktop App but it's not working.
i need like this image
it is requested that help / guidance may be provided that how to radRadial gauge in Rad gridview cell in Winform.

Thanks

GridView

answered on 11 Dec 2019

1 answer

162 views

RadButtons not rendering the same way in two different tabs.

Hi.

On a form, I am programmaticaly creating radButtons in tow different tabPages. The UI is rendered correctly in the first tab (see "Tab1.png") but not in the second ("Tab2.png"). They are generated the same way:

// For tab 1

RadButton b = new RadButton();

b.EnableTheming = true;

b.ThemeName = new DesertTheme().ThemeName;

b.Name = n;

b.Text = n;

b.Left = 10;

b.Top = (22 * i++);

b.MinimumSize = new Size(ptp1.Width - 40, 20);

b.MaximumSize = new Size(ptp1.Width - 40, 0);

b.AutoSize = true;

b.Padding = new Padding(4);

((TextPrimitive)b.ButtonElement.Children[1].Children[1]).TextWrap = true;

b.RootElement.StretchVertically = false;

b.TextAlignment = ContentAlignment.MiddleCenter;

b.Click += new EventHandler(onBtnRechercheClick);

tt.SetToolTip(b, b.Name);

ptp1.WindowsControl.Controls.Add(b);

// For tab 2

RadButton b2 = new RadButton();

b2.EnableTheming = true; b2.ThemeName = new DesertTheme().ThemeName; b2.Name = n2; b2.Text = n2; b2.Left = 10; b2.Top = (22 * i2++); b2.MinimumSize = new Size(ptp2.Width - 40, 20); b2.MaximumSize = new Size(ptp2.Width - 40, 0); b2.AutoSize = true; b2.Padding = new Padding(4); ((TextPrimitive)b2.ButtonElement.Children[1].Children[1]).TextWrap = true; b2.RootElement.StretchVertically = false; b2.TextAlignment = ContentAlignment.MiddleCenter; b2.Click += onBtnRechercheClick; tt.SetToolTip(b2, b2.Name); ptp2.WindowsControl.Controls.Add(b2);

Buttons, RadioButton, CheckBox, etc

answered on 11 Dec 2019

6 answers

941 views

Set single property label font style to bold and value background color?

Hello,

is there any way to set a single property Label font style to bold in the Grid? and is there also a way to set a different background color for the value input field?

I want show the user this property value is required. For this purpose I created a PropertyStoreItemExtended class inheriting the PropertyStoreItem with an added property Required. Now I have to find a way to customize Label and/or Value field in case of the Required property value.

Which PropertyGridEvent or (overridden) Methods can be used for that pupose?

Greetings from Leipzig

Holger Boskugel
--
http://vbwebprofi.de

PropertyGrid

answered on 10 Dec 2019

3 answers

254 views

Vertical Group Layout

Greetings.

Using the code below, it is possible to set vertical group layout :

RadPanorama1.PanoramaElement.GroupLayout.Orientation = Orientation.Vertical

BUT,

what would be the usage as it disables the scroll ball. I found relevant threads, but It would be helpful for VB.NET developers if you just not provide solutions in C#, but also in VB.NET (I already know C# can be converted to VB.NET, but it isn't comfortable in many cases).

For instance, I edited the relevant thread to create custom Panoroma :

Imports Telerik.WinControls

Imports Telerik.WinControls.Layouts

Imports Telerik.WinControls.UI

Class CustomPanorama

Inherits RadPanorama

Private vScroll As RadScrollBarElement

Protected Overrides Sub CreateChildItems(ByVal parent As Telerik.WinControls.RadElement)

MyBase.CreateChildItems(parent)

Me.vScroll = New RadScrollBarElement()

Me.vScroll.ScrollType = ScrollType.Vertical

Me.vScroll.StretchHorizontally = False

Me.vScroll.StretchVertically = True

Me.vScroll.MinSize = New System.Drawing.Size(16, 0)

Me.vScroll.Alignment = System.Drawing.ContentAlignment.TopRight

Me.PanoramaElement.Children.Add(vScroll)

AddHandler vScroll.ValueChanged, AddressOf vScroll_ValueChanged

AddHandler PanoramaElement.GroupLayout.RadPropertyChanged, AddressOf GroupLayout_RadPropertyChanged

AddHandler PanoramaElement.TileLayout.RadPropertyChanged, AddressOf GroupLayout_RadPropertyChanged

Me.ScrollBarAlignment = HorizontalScrollAlignment.Bottom

End Sub

Private Sub GroupLayout_RadPropertyChanged(ByVal sender As Object, ByVal e As Telerik.WinControls.RadPropertyChangedEventArgs)

If e.Equals(RadElement.BoundsProperty) AndAlso sender = Me.GetCurrentLayout() Then

UpdateVScroll()

End If

End Sub

Protected Overrides Sub OnSizeChanged(ByVal e As EventArgs)

MyBase.OnSizeChanged(e)

UpdateVScroll()

End Sub

Private Sub UpdateVScroll()

vScroll.Maximum = Me.GetCurrentLayout().Size.Height

vScroll.LargeChange = Math.Max(0, CInt((Me.Size.Height - Me.PanoramaElement.ScrollBar.Size.Height)))

If vScroll.LargeChange >= vScroll.Maximum Then

vScroll.Visibility = ElementVisibility.Hidden

Else

vScroll.Visibility = ElementVisibility.Visible

End If

If Me.PanoramaElement.ScrollBar.Visibility = ElementVisibility.Visible Then

vScroll.Margin = New System.Windows.Forms.Padding(0, 0, 0, Me.PanoramaElement.ScrollBar.Size.Height)

Else

vScroll.Margin = New System.Windows.Forms.Padding(0)

End If

End Sub

Private Sub vScroll_ValueChanged(ByVal sender As Object, ByVal e As EventArgs)

Me.GetCurrentLayout().PositionOffset = New System.Drawing.SizeF(0, -Me.vScroll.Value)

End Sub

Private Function GetCurrentLayout() As LayoutPanel

If Me.ShowGroups Then

Return Me.PanoramaElement.GroupLayout

End If

Return Me.PanoramaElement.TileLayout

End Function

Public Overrides Property ThemeClassName As String

Get

Return GetType(RadPanorama).FullName

End Get

Set(ByVal value As String)

MyBase.ThemeClassName = value

End Set

End Property

End Class

But, in this way, we have to create all elements such as tiles programmatically, really difficult and annoying in comparison with visual creation.

How to enable vertical scrollbar for vertical Group Layout ?

Thanks in advance.

Panorama

answered on 10 Dec 2019

2 answers

1.9K+ views

Disable highlighting of the last selected button

Hi

Is there a way to disable the highlighting of the last selected button?

With:

private void button_changebackcolor(object sender, System.EventArgs e)
{
if(((Telerik.WinControls.UI.RadButton)sender).BackColor != System.Drawing.Color.White)
{
((Telerik.WinControls.UI.RadButton)sender).BackColor = System.Drawing.Color.White;
}
}

it's possible, but that makes problem with my real program, because sometimes I need to highlight a button with yellow and button_changebackcolor overrrides that.

Thank you in Advance

Kind Regards,

Dominik

Buttons, RadioButton, CheckBox, etc

answered on 09 Dec 2019

3 answers

180 views

Change color of a ribbonTab (DropDown)

Hi

How is it possible to change the backcolor of a ribbonTab if it's drop-downed.

I tried to change the following colors:

RibbonBar

answered on 09 Dec 2019

2 answers

111 views

Opening DeleteRecurringAppointmentDialog from code

Hello,

Is there a simple way to open the DeleteRecurringAppointmentDialog? Just like adding an appointment with AddNewAppointmentWithDialog?

Best regards

Patrick Vossen

Scheduler and Reminder

answered on 05 Dec 2019

7 answers

1.4K+ views

Radgridview: Export to Excel question

Hi- I'm having trouble with exporting grid contents to Excel- using winforms radgridview version 2018.1.220.40 in vb.net. (Hopefully this is a stupid question but I've spent an hour looking through documentation and I think I'm missing something.) I found the code snippet below in the documentation, but getting the error

gridViewExport is not defined, and gridviewExportOptions not defined...

I'm assuming that gridViewExport is supposed to be my radgridview object, but when I sub in the name of mine, it says 'export' is not a member of RadGridView...

Can you advise? Thanks very much.

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

https://docs.telerik.com/devtools/wpf/controls/radgridview/export/export

Private Sub btnExport_Click(sender As Object, e As RoutedEventArgs)
Dim extension As String = "xls"
Dim dialog As New SaveFileDialog() With {
.DefaultExt = extension,
.Filter = String.Format("{1} files (.{0})|.{0}|All files (.)|.", extension, "Excel"),
.FilterIndex = 1
}
If dialog.ShowDialog() = True Then
Using stream As Stream = dialog.OpenFile()
gridViewExport.Export(stream, New GridViewExportOptions() With {
.Format = ExportFormat.Html,
.ShowColumnHeaders = True,
.ShowColumnFooters = True,
.ShowGroupFooters = False
})
End Using
End If
End Sub

GridView

answered on 03 Dec 2019

3 answers

135 views

Not able to select a row anymore

Hello,

I have some issues with the MultiColumn ComboBox (in the following just CB) in Visual Studio, i'll show you some code steps:

step 1: init CB

With myCB

.ClearTextOnValidation = True

.DataBindings.Clear()

.BestFitColumns()

.ValueMember = "wpno"

.DisplayMember = "wpno"

.DataSource = myDataset.Tables("myTable")

.AutoFilter = True

.AutoCompleteMode = AutoCompleteMode.Append

Dim compositeFilter As New CompositeFilterDescriptor()

Dim selectField1 As New FilterDescriptor("fieldname1", FilterOperator.Contains, "")

Dim selectField2 As New FilterDescriptor("fieldname2", FilterOperator.Contains, "")

Dim selectField3 As New FilterDescriptor("fieldname3", FilterOperator.Contains, "")

compositeFilter.FilterDescriptors.Add(selectField1)

compositeFilter.FilterDescriptors.Add(selectField2)

compositeFilter.FilterDescriptors.Add(selectField3)

compositeFilter.LogicalOperator = FilterLogicalOperator.[Or]

.EditorControl.FilterDescriptors.Clear()

.EditorControl.FilterDescriptors.Add(compositeFilter)

.ValueMember = "wpno"

.DisplayMember = "wpno"

.DataSource = myDataset.Tables("myTable")

End With

step 2: select an entry via the GUI or via

myCB.SelectedIndex = 2

works fine

step 3: open another form to edit some values of the selected entry

Me.Enabled = False

otherForm.Show()

step 4: Edit entry in other form, set a flag and return to first form (containing the CB)

updateEntry(updateField, updateValue)

updComboList = True

firstForm.Enabled = True

Me.Close()

step 5: reload values for the CB

If updComboList Then

updateDataset()

updateCB() 'code from step1

CB.Enabled = True

CB.SelectedIndex = 2 'doesn't work

End If

From now on, no change of selection via SelectedIndex or even via the GUI is possible! The CB is still responsive in terms of colors while hovering cells, but no selection is made when I click anywhere on the drop-down table of the CB. This table doesn't close again either.

Do you have any suggestions? Or is there maybe a bug with this MultiColumn ComboBox?

Thanks heaps.

MultiColumn ComboBox

answered on 03 Dec 2019

1 answer

1.7K+ views

RadGridView ComboBox

C#, Winforms

I have an XML data source (Main) that I am binding to my gridview. I want one column to be a combobox. I'm using a separate XML file (Options) for the combobox options.

Questions:

1) When I set the data source for the combobox to the Options dataset, the column is blank. I want it to be the value listed in the Main dataset. The result I seek is that when the grid loads, the values from the Main dataset are loaded. The user can then edit the combobox column by selecting from the drop down that is populated from the Options dataset. How can I achieve this?

2) Obviously, I want to save these back edits back to the main dataset. How can I rebind the column to the Main dataset?

GridView

answered on 02 Dec 2019