Questions on UI for WinForms Forum

2 answers

146 views

Hide frame around RadListControl into a Page

Good morning.
I don't want to display the frame around the RadListControl I dragged into a page (see attached image). Is it possible? I posted here because I don't know if it's a property of the RadPageView (I use ViewMode = ExplorerBar) or of the RadListControl.

Thank you very much
Gianfranco

PageView

answered on 18 Jan 2012

1 answer

199 views

How to change listview checkbox toggle state to THREE state?

I set the ShowCheckBoxes property of a ListView to true. Now how can I change checkbox state to THREE state instead of two states. I know with a CheckBox you can set IsThreeState = true. I am not able to find this property of the ListView.

thanks,
Kris...

CheckedListBox

answered on 17 Jan 2012

1 answer

117 views

How to change orientation of the columns headings which are grouped

I am trying to change orientation of the columns headings which are grouped together. But, its not working. As soon as I remove the grouping it works. Is there a fix for it yet and/or suggestions how to solve this.

Thanks,

Inder

GridView

answered on 17 Jan 2012

2 answers

137 views

Find dynamically created Control

I have the following aspx code in a usercontrol:

<telerik:RadTabStrip ID="radTSCapabilities" runat="server" SelectedIndex="0" Skin="Default" MultiPageID="radMPCapabilities" />

<telerik:RadMultiPage ID="radMPCapabilities" runat="server" SelectedIndex="0" />

I dynamically create the Tabs and PageViews from the code behind on load. Inside the PageView is a RadTreeView. See code below:

Telerik.Web.UI.RadPageView tmpPageView = new Telerik.Web.UI.RadPageView();

tmpPageView.ID = type.AbilityType.Name;

radMPCapabilities.PageViews.Add(tmpPageView);

//Add a Tab for the AbilityType

Telerik.Web.UI.RadTab tmpTab = new Telerik.Web.UI.RadTab(type.AbilityType.Name, type.AbilityType.ID.ToString());

tmpTab.PageViewID = tmpPageView.ID;

radTSCapabilities.Tabs.Add(tmpTab);

//Create and Load the Rad Tree

Telerik.Web.UI.RadTreeView radTree = new Telerik.Web.UI.RadTreeView();

radTree.Skin = "Default";

radTree.CheckBoxes = true;

radTree.TriStateCheckBoxes = true;

radTree.CheckChildNodes = true;

radTree.NodeDataBound += new Telerik.Web.UI.RadTreeViewEventHandler(radTree_NodeDataBound);

radTree.ID = type.AbilityType.ID.ToString() + type.AbilityType.Name.Replace(" ", "_");

radTree.DataTextField = "Name";

radTree.DataValueField = "ID";

radTree.DataFieldID = "ID";

radTree.DataFieldParentID = "ParentID";

//If there are multiple Ability Types in result set then go to the DB to get all Abilities for that type

if (distinctAbilityTypes.Count() != 1)

radTree.DataSource = AbilityMgr.GetAbilitiesByAbilityTypeID(type.AbilityType.ID);

else

radTree.DataSource = tmpAbilities;

//Bind the Tree

radTree.DataBind();

//Add a top border

Literal tmpLiteral = new Literal();

tmpLiteral.Text = "<div style='border-top:solid 1px #AAAAAA;'></div>";

//Add the Literal and Tree to the associated PageView

radMPCapabilities.FindControl(type.AbilityType.Name).Controls.Add(tmpLiteral);

radMPCapabilities.FindControl(type.AbilityType.Name).Controls.Add(radTree);

I am trying to get a reference to the dynamically created RadTreeView. I have been unable to do so for some time now. Please help.

Thank you.

PageView

answered on 17 Jan 2012

1 answer

238 views

context menu keeps focus?

I added a context menu to a RadGridView and when I handle the Click I show a dialog. The dialog pops up but somehow it does not have focus...even though I called ShowDialog. I actually have to click on the dialog for it to have focus. Also, the menu stays visible and it has focus. If I hit the ESC key the context menu goes away and then the dialog gains focus.

1) how should I be handling the menu item being selected so that this won't happen?
2) where is there real documentation on context menus?

ContextMenu

answered on 17 Jan 2012

4 answers

119 views

Scheduler and Table Adapters

Scheduler and Reminder

answered on 17 Jan 2012

3 answers

121 views

Extending the selection rectangle to cover the row selector cells

Just switched from a Winforms DataGridView to a RadGridView on a client project and the customer has asked if they can have the Selection Rectangle (as shown here http://www.telerik.com/help/winforms/gridview-rows-selection-rectangle.html
) enabled on the row selectors as well.

Dragging anywhere in the cells starts the selection but attempting to drag over a row header does not continue it. They would like to be able to start selecting multiple rows by dragging from the row selectors (to the left of each row).

The issue is that they are used to the way the old DataGridView works and would like it to work the same way. A minor issue yes, but users don't like change.

Is there a hack so that I can enable the rectangle selection to show and start when a mouse click occurs on the row selector too?

Thanks in advance

Terry

GridView

answered on 17 Jan 2012

2 answers

120 views

Binding to list of objects containing 2 lists

Hello all,

Scenario:
I am using the latest Radcontrols for Winforms (2011.3.11.1116) and I have a list of classes(categories) comprised of the following:
Name (string)
SubCats (List of objects(1) - each with props (Name, list of Reports))
Reports (List of objects(1) - each with props (list of Reports))

Reports is made up of Name and ID

Is it possible to use something like:
.Displaymember = "Name\Name\Name\Name"
.ChildMemeber = "categories\Reports\SubCats\Reports

or am I forced to loop through my class and populate the nodes manually?

Any help is appreciated.

Treeview

answered on 17 Jan 2012

1 answer

156 views

Update version Telerik

Hi
I want to update Rad Control for WinForms Q3 2010 to latest version. How can I do it.
I try to use tool update of Telerik: Project Update Utility. But it occurs so many errors.
Thank you.

General Discussions

answered on 17 Jan 2012

4 answers

219 views

Filtering in RadGridView with GridViewMultiComboBoxColumn

Hi,

I am having problems with using MultiComboboxes in GridView while using the filter bar.
Normal editing is ok after I have handled the RadGridView1_CellEditorInitialized event
If I click on the filter bar column and then select a value it throws this error:

System.Reflection.TargetInvocationException was unhandled

Message=Exception has been thrown by the target of an invocation.

Source=mscorlib

StackTrace:

at System.RuntimeMethodHandle._InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeType typeOwner)

at System.RuntimeMethodHandle.InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeType typeOwner)

at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)

at System.Delegate.DynamicInvokeImpl(Object[] args)

at System.Delegate.DynamicInvoke(Object[] args)

at System.Windows.Forms.Control.InvokeMarshaledCallbackDo(ThreadMethodEntry tme)

at System.Windows.Forms.Control.InvokeMarshaledCallbackHelper(Object obj)

at System.Threading.ExecutionContext.runTryCode(Object userData)

at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode,

Object userData)

at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)

at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)

at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

at System.Windows.Forms.Control.InvokeMarshaledCallback(ThreadMethodEntry tme)

at System.Windows.Forms.Control.InvokeMarshaledCallbacks()

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)

at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)

at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)

at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)

at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)

at System.Windows.Forms.Application.Run(ApplicationContext context)

at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.OnRun()

at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.DoApplicationModel()

at Microsoft.VisualBasic.ApplicationServices.WindowsFormsApplicationBase.Run(String[] commandLine)

at RMS.My.MyApplication.Main(String[] Args) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 81

InnerException: System.NullReferenceException

Message=Object reference not set to an instance of an object.

Source=Telerik.WinControls.GridView

StackTrace:

at Telerik.WinControls.UI.ScrollableRowsContainerElement.RemoveElement(Int32 position)

at Telerik.WinControls.UI.BaseVirtualizedContainer`1.MeasureElements()

at Telerik.WinControls.UI.BaseVirtualizedContainer`1.MeasureOverride(SizeF availableSize)

at Telerik.WinControls.UI.ScrollableRowsContainerElement.MeasureOverride(SizeF availableSize)

at Telerik.WinControls.RadElement.MeasureCore(SizeF availableSize)

at Telerik.WinControls.RadElement.Measure(SizeF availableSize)

at Telerik.WinControls.UI.RowsContainerElement.MeasureOverride(SizeF availableSize)

at Telerik.WinControls.RadElement.MeasureCore(SizeF availableSize)

at Telerik.WinControls.RadElement.Measure(SizeF availableSize)

at Telerik.WinControls.UI.ScrollViewElement`1.MeasureView(SizeF availableSize)

at Telerik.WinControls.UI.ScrollViewElement`1.MeasureOverride(SizeF availableSize)

at Telerik.WinControls.UI.GridTableElement.MeasureOverride(SizeF availableSize)

at Telerik.WinControls.RadElement.MeasureCore(SizeF availableSize)

at Telerik.WinControls.RadElement.Measure(SizeF availableSize)

at Telerik.WinControls.Layouts.ContextLayoutManager.UpdateLayout()

at Telerik.WinControls.Layouts.ContextLayoutManager.UpdateLayoutCallback(ILayoutManager manager)

InnerException:

the InnerException shows a System.NullReferenceException so I tried to force the filter value by handling the editor_TextChanged event, the code runs but the error is still thrown, code below:

Private Sub RadGridView1_CellEditorInitialized(sender As Object, e As Telerik.WinControls.UI.GridViewCellEventArgs) Handles RadGridView1.CellEditorInitialized

    Try

        Dim editor As Telerik.WinControls.UI.RadMultiColumnComboBoxElement = TryCast(e.ActiveEditor, Telerik.WinControls.UI.RadMultiColumnComboBoxElement)

        If editor IsNot Nothing AndAlso editor.Columns IsNot Nothing Then

            With editor

                If .ValueMember = "pkPostID" Then

                    .Columns("pkPostID").IsVisible = False

                    .Columns("tPostUPN").HeaderText = "UPN"

                    .Columns("tJobTitleName").HeaderText = "Job Title"

                    .Columns("dtPostStart").HeaderText = "Start Date"

                    .Columns("dtPostEnd").HeaderText = "End Date"

                ElseIf .ValueMember = "pkEmployeeID" Then

                    .Columns("pkEmployeeID").IsVisible = False

                    .Columns("lEmployeeNumber").HeaderText = "Emp Num"

                    .Columns("tEmployeeFirstName").HeaderText = "First Name"

                    .Columns("tEmployeeLastName").HeaderText = "Last Name"

                End If

                .AutoSizeDropDownToBestFit = True

                .AutoFilter = True

                RemoveHandler editor.TextChanged, AddressOf editor_TextChanged

                AddHandler editor.TextChanged, AddressOf editor_TextChanged

            End With

        End If

    Catch ex As Exception

        Call MessageBox.Show(ex.Message)

    End Try

End Sub

Private Sub editor_TextChanged(sender As Object, e As System.EventArgs)

    Try

        Dim editor As Telerik.WinControls.UI.RadMultiColumnComboBoxElement = DirectCast(Me.RadGridView1.ActiveEditor, Telerik.WinControls.UI.RadMultiColumnComboBoxElement)

        With editor

            If .ValueMember = "pkPostID" Then

                With .EditorControl

                    With .MasterTemplate.FilterDescriptors

                        .Remove("filterUPN")

                        .Add("filterUPN", Telerik.WinControls.Data.FilterOperator.IsEqualTo, editor.Value)

                    End With

                    .TableElement.Update(Telerik.WinControls.UI.GridUINotifyAction.FilteringChanged)

                End With

            ElseIf .ValueMember = "pkEmployeeID" Then

                With .EditorControl

                    With .MasterTemplate.FilterDescriptors

                        .Remove("filterEmpNum")

                        .Add("filterEmpNum", Telerik.WinControls.Data.FilterOperator.IsEqualTo, editor.Value)

                    End With

                    .TableElement.Update(Telerik.WinControls.UI.GridUINotifyAction.FilteringChanged)

                End With

            End If

        End With

    Catch ex As Exception

        Call MessageBox.Show(ex.Message)

    End Try

End Sub

If I select filters on other columns that are not MultiComboboxes they work without error.

I only have 2 columns in the grid that use multicomboboxes, the ValueMember and DisplayMember values are as follows:
Column 1 "POST"
ValueMember = "pkPostID" underlaying value datatype is Integer32
DisplayMember = "tPostUPN" underlaying value datatype is String

Column 2 "Employee"
ValueMember = "pkEmployeeID" underlaying value datatype is Integer32
DisplayMember = "lEmployeeNumber" underlaying value datatype is Integer32

the data is types and values are the same in the GridViewMultiComboBoxColumn elements.

Any help/ideas would be most welcome.

Thanks

Wayne Steel

GridView

answered on 17 Jan 2012