Questions on UI for WinForms Forum

5 answers

184 views

Scrollbar

Hi,

Can I resize the scrollbar in RadPanorama so that it shows bigger ?

REgards,
Daniel

Panorama

answered on 01 May 2014

2 answers

85 views

User interaction with the gridView

Hi,

I am using the hierarchical Gridview as some sort of navigation tree.
Typically, the Grid is positioned on the left pane, the right pane contains detail data an more.

When the user selects a row, from any level in the grid, extra data is loaded and displayed on the right pane.
Mostly, the detail pane contains a lot more data, than is displayed in the navigation grid. Depending on the network speed, this can take a bit of time.

My problem is that the grid, used as a data navigation aid, still accepts user interaction while detail data is being retrieved from the database.

Now I have to options:
1. fetch detail data in a separate thread, and abort when the user selects another row.
2. keep the grid (navigation aid) from processing user interaction while detail data is loading.

My question is,
can user interaction with the grid be placed on the same thread, so that it has to wait for the detail data being loaded?

Thanks.

GridView

answered on 01 May 2014

1 answer

56 views

Detect day on drag/drop from RadGridView

Greetings.

I'm experimenting with the latest demo version and running into an issue. Mind you, this seems like an edge case based on what I've read from others, but hopefully you can guide me.

I have an unbound RadGridView. It's unbound because I need to support drag/drop resorting within itself, simple inline editing and drag/drop to a RadCalendar. All of this is functioning well (I made extensive use of various how-tos on drag/drop from RadGridViews).

However, when I drag a row from the RadGridView to the RadCalendar, I'm unable to detect what day I've dragged the row onto. This would be trivial if I were using the drag/drop events of the Calendar itself, but I'm not. I'm using the Drag/Drop services I've declared as part of my extended RadGridView (similar to the documentation here: http://blogs.telerik.com/winformsteam/posts/13-05-15/extending-radgridview-to-enable-row-drag-and-drop-functionality )

My drop event looks like this...

private void dragDropService_PreviewDragDrop(object sender, RadDropEventArgs e)

{

Console.WriteLine(e.HitTarget);

var el = e.HitTarget as RadCalendarElement;

if (el != null)

{

GridDataRowElement draggedRow = ((SnapshotDragItem)e.DragInstance).Item as GridDataRowElement;

if (draggedRow != null)

{

int TaskID = (int)draggedRow.Data.Cells["TaskID"].Value;

// determine the date we dragged to, and update the task.

return;

}

How can I figure out which day I dropped the row onto? I don't seem to be able to get anything out of RadCalendarElement, nor can I find a relevant CalendarCellElement. Help! :)

Thanks,
Elsa

Calendar, DateTimePicker, TimePicker and Clock

answered on 01 May 2014

1 answer

96 views

Deactivate Shortcuts

Hey,

For my current application security of viewed PDF files is the major aspect.

I added the following settings with PdfSharp

            securitySettings.PermitAccessibilityExtractContent = false;
            securitySettings.PermitAnnotations = false;
            securitySettings.PermitAssembleDocument = false;
            securitySettings.PermitExtractContent = false;
            securitySettings.PermitFormsFill = false;
            securitySettings.PermitFullQualityPrint = false;
            securitySettings.PermitModifyDocument = false;
            securitySettings.PermitPrint = false;

It seems that the Telerik Component does not recognize these settings.

So is it possible to deactivate the strg+a (select all) / strg+c (copy) shortcuts

Buttons for Printing and Select Text are already deactivated.

Thanks

Matthias

PdfViewer and PdfViewerNavigator

answered on 01 May 2014

3 answers

77 views

Copy drops TABLE/TR tags when first/last column are hidden

I am trying to copy and paste rows from my RadGridView to Excel. It works as expected when the first and last columns are visible, but if the first column is hidden the opening TABLE/TR tags in the HTML format on the clipboard are lost, and if the last column is hidden the matching closing tags are lost.

Repro: (VS2012, RadGridView Q1 2014)
Add a datasource with three columns. Right click on row header -> Copy, Paste into Excel.
Expected: The data spans three columns.
Actual: The data spans three columns. Yay!
Clipboard contents:

Version:1.0

StartHTML:00000097

EndHTML:00000239

StartFragment:00000133

EndFragment:00000203

<HTML>

<BODY>

<TABLE><TR><TD>3</TD><TD>Tools</TD><TD>Electronics</TD></TR></TABLE>

</BODY>

</HTML>

Hide the first column. Right click on row header -> Copy, Paste into Excel.
Expected: The data spans two columns.
Actual: All data is in a single cell.
Clipboard contents: No <TABLE><TR>.

Version:1.0

StartHTML:00000097

EndHTML:00000216

StartFragment:00000133

EndFragment:00000180

<HTML>

<BODY>

<TD>Books</TD><TD>Chocolate</TD></TR></TABLE>

</BODY>

</HTML>

GridView

answered on 01 May 2014

11 answers

742 views

Microsoft Office Add-in's

Hello all....

I have a quick question. I'm developing an add-in for MS Project. The add-in will essentially be a pop up Windows form but it must contain a line graph which will be rendered from values in an array.

Can the Telerik Winforms controls be used on forms which are contained in an MS Office add-in?

Many thanks,

Sacha

General Discussions

answered on 01 May 2014

2 answers

147 views

Change PageCollections background color

When adding a RadWizard to a form and setting a theme to a dark theme, each page's background color gets set to 'White".

I can change this manually as long as you dont set a theme, if you set a theme at run time it makes the pages back ground color white again.
Is there a way to change default back ground color ? I feel these controls should be set to transparent or at lest the forms color and not "White" specially when using a theme.

I mean I can run a for loop and iterate through the page collections and set the background but I hope there is a better way.

Wizard

answered on 30 Apr 2014

5 answers

150 views

Gridview SelfReference Hierarchy Filtering

Hi,I have implemented a mixed mode hierarchy in my grid similar to this example
http://blogs.telerik.com/blogs/posts/11-03-07/re_mixed_hierarchy_mode_in_radgridview_for_winforms.aspx
Is it possible to assign a defaultivew of my "Folders" datatable as the source for my grid so that i can display only selected folders based on certain conditions.
I want to filter the defaultview of the table programatically so that the grid gets automaticaly updated.
The filtering option cannot be shown to the user.

GridView

answered on 30 Apr 2014

4 answers

138 views

Custom field mapping doesnt work

Hi,

I was trying to add a custom field to the EditAppointment dialog of my scheduler. The field is a combobox and I can select a value, but the mapping doesn't work, its always null. Here are some code snippets:

MainForm:

Public Sub New()

InitializeComponent()

AddHandler Me.RadScheduler.AppointmentEditDialogShowing, AddressOf RadScheduler_AppointmentEditDialogShowing

Me.RadScheduler.AppointmentFactory = New AppointmentWithNewFieldsFactory

Me.SchedulerBindingDataSource1.EventProvider.AppointmentFactory = New AppointmentWithNewFieldsFactory

Dim appointmentMappingInfo As AppointmentMappingInfo = TryCast(Me.SchedulerBindingDataSource1.EventProvider.Mapping, AppointmentMappingInfo)

appointmentMappingInfo.Mappings.Add(New SchedulerMapping("CustomField", "CustomFieldDatabase"))

End Sub

Private appointmentDialog As IEditAppointmentDialog = Nothing

Private Sub RadScheduler_AppointmentEditDialogShowing(sender As Object, e As AppointmentEditDialogShowingEventArgs) Handles RadScheduler.AppointmentEditDialogShowing

If Me.appointmentDialog Is Nothing Then

Me.appointmentDialog = New AppointmentWithNewFieldsEditForm()

End If

e.AppointmentEditDialog = Me.appointmentDialog

End Sub

AppointmentWithNewFields Class:

Imports Telerik.WinControls.UI

Public Class AppointmentWithNewFields

Inherits Appointment

Public Sub New()

MyBase.New()

End Sub

Private _CustomField As Integer

Public Property CustomField() As Integer

Get

Return Me._CustomField

End Get

Set(value As Integer)

If Me._CustomField <> value Then

Me._CustomField = value

Me.OnPropertyChanged("CustomField")

End If

End Set

End Property

AppointmentWithNewFieldsEditForm

Imports Telerik.WinControls.UI

Public Class AppointmentWithNewFieldsEditForm

Inherits Telerik.WinControls.UI.Scheduler.Dialogs.EditAppointmentDialog

Public Sub New()

InitializeComponent()

End Sub

Protected Overrides Sub LoadSettingsFromEvent(ByVal ev As IEvent)

MyBase.LoadSettingsFromEvent(ev)

Dim appointmentWithNewFields As AppointmentWithNewFields = TryCast(ev, AppointmentWithNewFields)

If appointmentWithNewFields IsNot Nothing Then

Me.ComboBoxCustomField.SelectedValue = appointmentWithNewFields.CustomField

End If

End Sub

Protected Overrides Sub ApplySettingsToEvent(ByVal ev As IEvent)

Dim appointmentWithNewFields As AppointmentWithNewFields = TryCast(ev, AppointmentWithNewFields)

If appointmentWithNewFields IsNot Nothing Then

appointmentWithNewFields.CustomField= Me.ComboBoxCustomField.SelectedValue

End If

MyBase.ApplySettingsToEvent(ev)

End Sub

Protected Overrides Function CreateNewEvent() As IEvent

Return New AppointmentWithNewFields()

End Function

AppointmentsWithNewFieldsFactory:

Imports Telerik.WinControls.UI

Public Class AppointmentWithNewFieldsFactory

Implements IAppointmentFactory

#Region "IAppointmentFactory Members"

Public Function CreateNewAppointment() As IEvent Implements IAppointmentFactory.CreateNewAppointment

Return New AppointmentWithNewFields()

End Function

#End Region

End Class

What did I wrong? Can anyone help me please?

Thanks + greetings

Daniel

Scheduler and Reminder

answered on 30 Apr 2014

2 answers

107 views

Can I get the drouped value clicking on the header row?

Hello,

I have a gridview that is grouped by a job number. I have all of the rows collapsed. I can expand a group and click on a row within and get the value of the job number. Is there any way of leaving it collapsed and clicking on the group header row and get the grouped value which is the job number for me? I tried and get the error of Object reference not set to an instance of an object. I assume because the cell for that name is not in the row. Is there a different way to get it?

Thanks,

Warren

GridView

answered on 30 Apr 2014