Questions on UI for WinForms Forum

1 answer

206 views

A lot of PDF documents (often but not always scanned ones) come out looking very bizarre in the PDFViewer (see attached). I have confirmed that the documents themselves are fine, as they look normal in other PDF viewers. The distortion is not dependent on PDF version or size. Is this a known issue? What's causing it?

PdfViewer and PdfViewerNavigator

answered on 15 Apr 2016

4 answers

154 views

Defining style with capital letters

Hi

I have changed a heading-style in a RadDocument. I also want that the letters in the header be in upper case, i.e., HEADER instead of Header. How can it be done?

thanks,

Shahrzade.

RichTextEditor

answered on 15 Apr 2016

2 answers

143 views

Highlighting text

Hi,

I have a RadRichTextEdior, the user selects a piece of text and wants to highlight it with a chosen color , e.g., by clicking on a button. How can I do it programatically? How can I get hold of the selected text (its start and its end)?

Is there anything like ChangeParagraphBackgroundColorCommand for selected text?

Thanks,

Shahrzade.

RichTextEditor

answered on 15 Apr 2016

7 answers

127 views

[Solved] Search a Hierarchical Grid

Hello,

I use a hierarchical grid in my application. The grid has a master level and a child level.

I like the integrated search function of the grid and want to use it in my project.

I have a problem when I use the UseScrollbarsInHierarchy feature of the grid.

When I set it to False the search function works fine which means the table scrolls to each search hit (child and master hit alike) when the arrow buttons next to the search field are used.

When I set it to True (desired option because the child level can have several hundred rows) the grid does not scroll to the search hits anymore.

How can I achieve that the master scrollbar scrolls to the search hit and the child scroll bar too?

I tried using Databinding / Object Relational Mode / Load On Demand with the same result as described above.

I use the latest version of the UI for WinForms with .NET 3.0 (Unfortunately the highest version of target System).

Thanks for your help.

Regard

Ingo

GridView

answered on 14 Apr 2016

5 answers

471 views

Modify Filtering Row Text

Hello,

I'm trying to cancel the RadGridView's FilterChanging event after the user enters text into the filtering row, but doing so does not undo any additional text that the user may have added to the filtering row. I have tried the following lines of code but neither worked (and I discovered the Value property does not match the RadGridView's filtering row text - it matches the actual value of the filter):

radGridView1.FilterDescriptors[0].Value = oldValue;

radGridView1.MasterView.TableFilteringRow.Cells[0].Value = oldValue;

How can I set the filtering row text back to its original value?

Thank you!

GridView

answered on 14 Apr 2016

2 answers

192 views

[Solved] RadColorBox in CommandBar

Hello,

I would like to display a RadColorBox inside a RadCommandBar. This would allow the user to select a color and to show him which color is currently selected.

Is this possible?

A DateTimePicker can be easily hosted inside the command bar inside a CommandBarHostItem. But I can get it to work with a RadColorBox

Thank You for Your help

Regards,

Ingo

CommandBar

answered on 14 Apr 2016

2 answers

83 views

[Solved] Handlers and Grouping disappears after database update

Dear readers,

i have a scheduler grouped by resources. I use a dropdown (selectionmode=Multisimple) to switch the resources on/off to show them side by side in the scheduler and AddHandler to each item in the dropdown.

In Form_Load() i use the following code

' Populates the dropdown

ddlResourcen.DataSource = SchedulerDataDataSet.Resources

ddlResourcen.ValueMember = "ID"

ddlResourcen.DisplayMember = "Name"

For Each item As RadListDataItem In Me.ddlResourcen.Items

AddHandler item.RadPropertyChanged, AddressOf SelectedChanged

Next

Here is the code for SelectedChanged()

Private Sub SelectedChanged()

AddResources()

End Sub

It simply switch the resources on/off.

I can move appointment between resources, move and resize them and all is fine, until i try to save it to the database.

I use just the code suggested in the demos with just one change to show my resources in different colors at the last line

When i call the Sub UpdateDB the stored appointments/resources data is correct, but my handlers for to the drowdown items are not longer

working and just one resource is visible because my multi preselection is gone.

Private Sub UpdateDB()

AppointmentsResourcesTableAdapter.Adapter.AcceptChangesDuringUpdate = False

Dim deletedRelationRecords As schedulerDataDataSet.AppointmentsResourcesDataTable = TryCast(Me.SchedulerDataDataSet.AppointmentsResources.GetChanges(DataRowState.Deleted), schedulerDataDataSet.AppointmentsResourcesDataTable)

Dim newRelationRecords As schedulerDataDataSet.AppointmentsResourcesDataTable = TryCast(Me.SchedulerDataDataSet.AppointmentsResources.GetChanges(DataRowState.Added), schedulerDataDataSet.AppointmentsResourcesDataTable)

Dim modifiedRelationRecords As schedulerDataDataSet.AppointmentsResourcesDataTable = TryCast(Me.SchedulerDataDataSet.AppointmentsResources.GetChanges(DataRowState.Modified), schedulerDataDataSet.AppointmentsResourcesDataTable)

Dim newAppointmentRecords As schedulerDataDataSet.AppointmentsDataTable = TryCast(Me.SchedulerDataDataSet.Appointments.GetChanges(DataRowState.Added), schedulerDataDataSet.AppointmentsDataTable)

Dim deletedAppointmentRecords As schedulerDataDataSet.AppointmentsDataTable = TryCast(Me.SchedulerDataDataSet.Appointments.GetChanges(DataRowState.Deleted), schedulerDataDataSet.AppointmentsDataTable)

Dim modifiedAppointmentRecords As schedulerDataDataSet.AppointmentsDataTable = TryCast(Me.SchedulerDataDataSet.Appointments.GetChanges(DataRowState.Modified), schedulerDataDataSet.AppointmentsDataTable)

Try

If newAppointmentRecords IsNot Nothing Then

Dim newAppointmentIds As New Dictionary(Of Integer, Integer)()

Dim oldAppointmentIds As New Dictionary(Of Object, Integer)()

For i As Integer = 0 To newAppointmentRecords.Count - 1

oldAppointmentIds.Add(newAppointmentRecords(i), newAppointmentRecords(i).ID)

Next

AppointmentsTableAdapter.Update(newAppointmentRecords)

For i As Integer = 0 To newAppointmentRecords.Count - 1

newAppointmentIds.Add(oldAppointmentIds(newAppointmentRecords(i)), newAppointmentRecords(i).ID)

Next

If newRelationRecords IsNot Nothing Then

For i As Integer = 0 To newRelationRecords.Count - 1

newRelationRecords(i).AppointmentID = newAppointmentIds(newRelationRecords(i).AppointmentID)

Next

End If

If deletedRelationRecords IsNot Nothing Then

AppointmentsResourcesTableAdapter.Update(deletedRelationRecords)

End If

If deletedAppointmentRecords IsNot Nothing Then

AppointmentsTableAdapter.Update(deletedAppointmentRecords)

End If

If modifiedAppointmentRecords IsNot Nothing Then

AppointmentsTableAdapter.Update(modifiedAppointmentRecords)

End If

If newRelationRecords IsNot Nothing Then

AppointmentsResourcesTableAdapter.Update(newRelationRecords)

End If

If modifiedRelationRecords IsNot Nothing Then

AppointmentsResourcesTableAdapter.Update(modifiedRelationRecords)

End If

Me.SchedulerDataDataSet.AcceptChanges()

Catch ex As Exception

MessageBox.Show(String.Format("An error occurred during the update process:" & vbLf & "{0}", ex.Message))

Finally

If deletedRelationRecords IsNot Nothing Then

deletedRelationRecords.Dispose()

End If

If newRelationRecords IsNot Nothing Then

newRelationRecords.Dispose()

End If

If modifiedRelationRecords IsNot Nothing Then

modifiedRelationRecords.Dispose()

End If

End Try

AddResources()

End Sub

Private Sub AddResources()

Me.rscMain.Resources.Clear()

Dim i As Integer = 0

For Each Row As DataRow In SchedulerDataDataSet.Tables("Resources").Rows

Dim resource As New Resource()

resource.Id = New EventId(i + 1)

resource.Name = Row("Name").ToString

resource.Color = Color.FromName(Row("SystemColor"))

If ddlResourcen.Items(i).Selected = True Then

Me.rscMain.Resources.Add(resource)

End If

i = i + 1

Next

Me.rscMain.GroupType = GroupType.Resource

Me.rscMain.ActiveView.ResourcesPerView = 4

End Sub

I belive this takes places because the SchedulerDataDataSet was changed, because when i reuse the code

' Populates the dropdown

ddlResourcen.DataSource = SchedulerDataDataSet.Resources

ddlResourcen.ValueMember = "ID"

ddlResourcen.DisplayMember = "Name"

For Each item As RadListDataItem In Me.ddlResourcen.Items

AddHandler item.RadPropertyChanged, AddressOf SelectedChanged

Next

i can again use it, but my preselection is gone, of course.

Any suggestions how to stop this behaviour.

Kind regards

Martin Gartmann

Scheduler and Reminder

answered on 13 Apr 2016

1 answer

228 views

RadTextBox With DropDownButton

01.internal class RadTextBoxWithDropDownButton : RadTextBox

02.{

03. public RadDropDownButtonElement DropDownButtonElement { get; private set; }

04.

05. public RadTextBoxWithDropDownButton()

06. {

07. DropDownButtonElement = new RadDropDownButtonElement

08. {

09. Padding = new Padding(2, 0, 2, -2),

10. Margin = new Padding(0, 0, 0, 0),

11. Text = " "

12. };

13.

14. var stackLayoutElement = new StackLayoutElement

15. {

16. Orientation = Orientation.Horizontal,

17. Margin = new Padding(1, 0, 1, 0)

18. };

19.

20. stackLayoutElement.Children.Add(DropDownButtonElement);

21.

22. var textBoxItem = TextBoxElement.TextBoxItem;

23. TextBoxElement.Children.Remove(textBoxItem);

24.

25. var dockLayoutPanel = new DockLayoutPanel();

26. dockLayoutPanel.Children.Add(stackLayoutElement);

27. dockLayoutPanel.Children.Add(textBoxItem);

28. DockLayoutPanel.SetDock(textBoxItem, Telerik.WinControls.Layouts.Dock.Left);

29. DockLayoutPanel.SetDock(stackLayoutElement, Telerik.WinControls.Layouts.Dock.Right);

30.

31. TextBoxElement.Children.Add(dockLayoutPanel);

32.

33. TextBoxElement.Padding = new Padding(1, 1, 1, 1);

34. Margin = new Padding(0, 1, 0, 0);

35. }

36.}

TextBox

answered on 12 Apr 2016

1 answer

54 views

Save a New Row as Soon as User has Added It

When a user clicks the "Click Here to Add a New Row" bar, I need to fill some default values and immediately save the row to the database, before the user has done anything else. I'm using the DefaultValuesNeeded event to fill the default values but if I call Update on my dataAdapter from this event, nothing happens, since the new row hasn't really been added to the collection of rows yet. Is there any way I can save the new row to the database at this point?

GridView

answered on 12 Apr 2016

1 answer

402 views

[Solved] RadGridView hierarchy force RowSourceNeeded event always

Hello there ,

i have RadGridView hierarchy with 3 level

i want to do the following

1- when expand any row at the first level , i need to collapse any other expanded row.

2- when expand any row at the first level i need to dispose any data source assigned to other rows , in other words i want to keep my memory to contain only the datasource of current expanded row.

for example

i expanded first row , then rowsourceneed event will be fired and second level will be binded

when expand second row , also rowsourceneed event will be fired and second level will be binded

now i need to clear the datasource for first expanded row , and when first row expanded again it will force rowsourceneed event to be fired again

please help me.

regards,

Ahmed.

GridView