Questions on UI for WinForms Forum

1 answer

154 views

Hello
I need to impalement a tree view with full row and ShowLines
Like what you see in the picture attached
Is it possible? and How

Thanks
Meir

Treeview

answered on 25 Mar 2010

5 answers

188 views

Combobox binding to custom radCombobox item

How do I instruct Combobox to use different type of RadComoboxItem while still being to able to databind using Databindings or datasource ?

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 25 Mar 2010

5 answers

151 views

ItemDrag not recognizing the correct dragNode

Running your demos for Drag and Drop in the TreeView leaves me puzzled...

When dragging the "Unread Mail" node in the left treeView and then dropping it on the "Inbox" node the textBox on the right ("radTextBox1") displays the previous sibling node "Large Mail". It is also "Large Mail" that is displayed during the actual dragging.

What am I missing here? I really need the correct node as I have a corresponding XML document thet I need to manipulate based on drag and drop in the treeView.

<update>
Just tried running the same code on a couple of other pc's and they are working just fine. The problem is consistent on my own pc though. Any ideas as to what might be wrong?
</update>

Thanks in advance

Claus

Treeview

answered on 25 Mar 2010

1 answer

63 views

Issue: GridView, Two LookupColumns and ParentChild Relationship

I have 3 tables as below.
Terms   (TID, Tname)
TermConditions (TCID , FK_TID,  TCName)
SelectedTermsAndConditions. (RowID, FK_TID, FK_TCID , SomeDescription)

I have a dataset.xsd and i have set relation between Terms and TermConditions tables. (Lets say name of Relation is "TTC")

In a Winform, i have a grid whose datasource =  SelectedTermsAndConditions.
I added Two Lookup columns to display TName and TCName for FK_TID, FK_TCID colums respectively
I set their datasource as below.
FK_TID.DataSource = Terms
FK_TCID.DataSouce = Terms.TTC   (The Relation).

When the grid is displayed only for 1st row of SelectedTermsAndConditions I get TName and TCName correctly.
From 2nd Row onwards TCName  remains null.
(Note when I try to edit, both lookupcolumns as a dropdownbox appear to behave normally. meaning when i choose TName, it filters and displays child values in TCName lookupcolumn).   but somehow it looks like while displaying grid it is not able to get child values for each row.

Hoping my above explaination was clear to understand problem scenario.

-Lee.

GridView

answered on 25 Mar 2010

1 answer

193 views

RadComboBox on SplitContainer

Hello,

when I have a RadComboBox ( DataSource is ObjectView ) on a RadSplitContainer it works, until I close the Solution. When I reopen the solution, run the program and I want to expand the ComboBox, I get an InvalidOperationException "Element already added". Only if I completely delete the ComboBox and create a new one, it works until I close and open the solution again.

WinControls-Version is 2010.1.10.308
OpenAccess-Version is 2010.1.310.2

Regards
Roland

i found, that, if I make one or more copies (<Ctrl>C, <Ctrl>V ) of the RadComboBox or if I move the ComboBox to a Windows, which is not a SplitContainer, it works. The error occurs alwas in the first ComboBox in the SplitContainer. If I delete the CombBox, where the error happens, the error happens on the next ComboBox.

here the exception-detail:

System.InvalidOperationException wurde nicht behandelt.

Message=

"Element already added"

Source=

"Telerik.WinControls"

StackTrace:

bei Telerik.WinControls.RadElementCollection.CheckElementAlreadyAdded(RadElement element)

bei Telerik.WinControls.RadElementCollection.OnInsert(Int32 index, Object value)

bei System.Collections.CollectionBase.System.Collections.IList.Add(Object value)

bei Telerik.WinControls.RadElementCollection.Add(RadElement value)

bei Telerik.WinControls.MeasurementControl.GetDesiredSize(RadElement element, SizeF availableSize)

bei Telerik.WinControls.UI.RadComboBoxElement.GetInitialPopupSize()

bei Telerik.WinControls.UI.PopupEditorBaseElement.ShowPopup()

bei Telerik.WinControls.UI.RadComboBoxElement.OnBubbleEvent(RadElement sender, RoutedEventArgs args)

bei Telerik.WinControls.RadElement.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)

bei Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)

bei Telerik.WinControls.RadElement.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)

bei Telerik.WinControls.RadItem.RaiseBubbleEvent(RadElement sender, RoutedEventArgs args)

bei Telerik.WinControls.RadElement.RaiseRoutedEvent(RadElement sender, RoutedEventArgs args)

bei Telerik.WinControls.RadElement.DoMouseDown(MouseEventArgs e)

bei Telerik.WinControls.RadElement.CallDoMouseDown(MouseEventArgs e)

bei Telerik.WinControls.ComponentInputBehavior.OnMouseDown(MouseEventArgs e)

bei Telerik.WinControls.RadControl.OnMouseDown(MouseEventArgs e)

bei System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)

bei System.Windows.Forms.Control.WndProc(Message& m)

bei System.Windows.Forms.ScrollableControl.WndProc(Message& m)

bei Telerik.WinControls.RadControl.WndProc(Message& m)

bei System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)

bei System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)

bei System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

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

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

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

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

bei System.Windows.Forms.Application.Run(Form mainForm)

bei GUI1.Program.Main()

in C:\Projekte\Test\3TierArchitectur2\GUI1\Program.cs:Zeile 18.

bei System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)

bei System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args)

bei System.Runtime.Hosting.ManifestRunner.Run(Boolean checkAptModel)

bei System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly()

bei System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext, String[] activationCustomData)

bei System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext)

bei System.Activator.CreateInstance(ActivationContext activationContext)

bei Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone()

bei System.Threading.ThreadHelper.ThreadStart_Context(Object state)

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

bei System.Threading.ThreadHelper.ThreadStart()

InnerException:

SplitContainer

answered on 25 Mar 2010

6 answers

210 views

Issue with RadComboBoxElements in GridView Cells

Hello,

Attached is a screenshot of a problem I'm observing with RadComboBoxElements that I am adding to gridview cells. I have not done anything special to cause the drawing of the textitem component of the RadComboBoxElement to gain precedence over the column headers, but they are, somehow. If I continue to scroll down, they will disappear behind the column headers eventually. I've tried setting the zIndex of the RadComboBoxElements to negative numbers but it's not helping...

Thanks!

Jeremy

GridView

answered on 25 Mar 2010

1 answer

219 views

How to get rid of Quick access menu

Dear friends,

I want to know whether i can get rid of QuickAccess Menu(Drop down which is coming right most side of the QuickAccess Toolbar).

I don't want want to show That drop down and a small down arrow button.
Please let me know if there is any way to hide Quick access menu or to collapse it.

Thanks,
Regards,
Ravi

RibbonBar

answered on 25 Mar 2010

2 answers

232 views

TimeSpan on Y Axis

On my Chart I have a Timespan on the Y Axis. So far I managed to use Integer TotalMintues, however, I'd like to Format it
hh:mm for better readability.
Thanks for your help.

Regards
Erwin

Chart (obsolete as of Q1 2013)

answered on 25 Mar 2010

1 answer

140 views

Set Border

This My Code only set border color by red when select 1 cell:

private void radGridView1_CellFormatting(object sender, Telerik.WinControls.UI.CellFormattingEventArgs e)
{
            if (!e.CellElement.IsCurrent && e.CellElement.RowInfo.IsCurrent)
            {
                e.CellElement.BorderColor = Color.FromArgb(208, 215, 229);
             }
            else
            {
                 e.CellElement.ResetValue(LightVisualElement.BorderColorProperty, ValueResetFlags.Local);
             }

             if (e.CellElement.IsCurrent && e.CellElement.BackColor != Color.LightBlue)
            {

                e.CellElement.BackColor = Color.White;
                e.CellElement.BackColor2 = Color.White;
                e.CellElement.BackColor3 = Color.White;
                e.CellElement.BackColor4 = Color.White;

                e.CellElement.BorderColor = Color.Red;
            }
            else if (e.CellElement.IsCurrent && e.CellElement.IsSelected && e.CellElement.BackColor == Color.LightBlue)
            {

                e.CellElement.BackColor = Color.LightBlue;
                e.CellElement.BackColor2 = Color.LightBlue;
                e.CellElement.BackColor3 = Color.LightBlue;
                e.CellElement.BackColor4 = Color.LightBlue;

                e.CellElement.BorderColor = Color.Red;
            }
}
private void radGridView1_RowFormatting(object sender, RowFormattingEventArgs e)
{
            e.RowElement.DrawFill = true;
}

* But that code when select 1 cell only set border left,bottom,top but not set color for border right.

* ? * I want set all border of cell when click cell.

Help Me!

Thanks!

GridView

answered on 24 Mar 2010

1 answer

60 views

how addd items in rad combo box from database fields

hi
i am usng visual studio .net 2005 with rad control win form q3 2009 sp1, how to load items from database field in rad combo box
plz help me very urgent

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 24 Mar 2010