Hi,
   I have installed "RadControls_WinForms_2009_1_414_dev" and using the RadGridView control for our development.  I have created a RadGridView with three columns in the design time using the wizard (using "Open Propery Builder" link at the design time).  The names of the columns are ID, FullName and IsSelected.  The last IsSelected column is a check box column.  I have added the following code in the form load.

 

DataTable dt = new DataTable();

 

dt.Columns.Add(

"ID");

 

dt.Columns.Add(

"FullName");

 

dt.Columns.Add(

"IsSelected");

 

 

DataRow dr = dt.NewRow();

 

dr[

"ID"] = "1";

 

dr[

"FullName"] = "Arvind";

 

dr[

"IsSelected"] = true;

 

dt.Rows.Add(dr);

 

dr = dt.NewRow();

dr[

"ID"] = "2";

 

dr[

"FullName"] = "Robin";

 

dr[

"IsSelected"] = true;

 

dt.Rows.Add(dr);

 

dr = dt.NewRow();

dr[

"ID"] = "3";

 

dr[

"FullName"] = "Kumar";

 

dr[

"IsSelected"] = false;

 

dt.Rows.Add(dr);

radGvw.DataSource = dt;

While running the application, totally 6 columns are generated.  All the three columns are repeated.  The columns are displaying in the order ID, FullName, IsSelected, ID, FullName, IsSelected.  The IsSelected column type is textbox column in the second time.

I am new to this Telerik control.  Please advice.

Regards,
Arvind Robin Kumar.

I currently have a grid with a checkbox column.  When the user checks the checkbox I change the background color and that works fine but i'm unable to change the text color on the ValueChanged event of that grid.

//Row Highlight when selected

GridCheckBoxCellElement cbCell = (GridCheckBoxCellElement)sender;

cbCell.RowElement.BackColor = System.Drawing.ColorTranslator.FromHtml("#DAFB5E");

cbCell.RowElement.DrawFill = true;

cbCell.RowElement.ForeColor = this.radGVTables.ForeColor = Color.Sienna;

//I've tried this and it didn't work either.

cbCell.RowElement.ForeColor = Color.Sienna;

Thank you for any help

 

 

 

 

I'm running XP SP3, and Visual Studio Team Systems 2008 Development Edition.  Towards the end of installing Q1 2009 SP1 an exception is thrown (see below) and installation stops. Anyone else encountering this problem?

Thnks
Jeff

***** Exception *****
System.NullReferenceException was unhandled
  Message="Object reference not set to an instance of an object."
  Source="ToolBoxInstaller"
  StackTrace:
       at ToolBoxInstaller.Main(String[] arguments)
  InnerException: null

Hi,

I am just trying to migrate from Visual Basic 6.0 to .net. And really new to telerik rad controls for winform. In my form I have added a tab control which will dynamically created tabitems and 3 different contols within each tab. Could someone please help me to find the name of tabitems and control added dynamically. Each time when loop starts functioning I want to check where the new tab item is already added by loop or not.  

 

Private Sub ShowData()  

 

Dim i As Integer  

 

Dim tmpWord As String  

 

Dim tmprelateto As String  

 

Dim itab As Integer  

 

Dim newtab As String

ds = New DataSet()

 

myAdapter.Fill(ds,

"Dictionary")

 

 

mytable = ds.Tables(

"Dictionary")

 

 

tmprelateto =

""

 

 

 

tmpWord = ""

i = 0

 

Do
myrow = mytable.Rows.Item(rownumber)

 

tmpWord = Trim(myrow.Item(

"Word").ToString)

 

 

tmprelateto = Trim(myrow.Item(

"relateto").ToString)

 

 

If tmprelateto = "" Then

    i = i + 1 

    If i = 2 Then

 

         Exit Do

 

    End If

    RichTextBox1.Text = Trim(myrow.Item(

"DefNep").ToString)

 

    RichTextBox2.Text = Trim(myrow.Item(

"DefEng").ToString)
    rownumber = rownumber + 1

Else
     newtab = Trim(myrow.Item("pref").ToString)

 

     RadTabStrip1.Items.Add(

New TabItem(newtab))

     Dim list As New ListBox
     Dim rtfbox As New RichTextBox

     Dim rtfbox2 As New RichTextBox

     For Each ti As TabItem In RadTabStrip1.Items

        ti.ContentPanel.Controls.Add(list)

        ti.ContentPanel.Controls.Add(rtfbox)

        ti.ContentPanel.Controls.Add(rtfbox2)

 

 

 

 

    With list  

            .Location =

 

New Point(5, 3)

 

            .Width = 132
            .BorderStyle = BorderStyle.None

            .Height = 117

             

 

If Trim(myrow.Item("Word").ToString) = "" Then

 

                 

 

.Items.Add(Trim(myrow.Item("relateto").ToString))

 

             

 

Else  

 

 

 

                 .Items.Add(Trim(myrow.Item(

"Word").ToString))

 

             

 

End If

 

 

    

 

End With

 

 

 

 

 

    With rtfbox

 

            .Location =

 

New Point(141, 3)

 

            .Width = 133

            .Height = 117

            .BorderStyle = BorderStyle.None

            .Text = Trim(myrow.Item(

 

"DefNep").ToString)  

 

 

 

    End With

 

 

 

 

 

    With rtfbox2

             .Location =

 

New Point(278, 3)

 

             .Width = 132

             .Height = 117

             .BorderStyle = BorderStyle.None

             .Text = Trim(myrow.Item(

 

"DefEng").ToString)

 

     

 

End With

 

 

 

Next  

 

 

 

rownumber = rownumber + 1 

End If  

 

 

Loop  

 

 

End Sub

Database Used above program looks like:
Word        relateto        pref        DefNep                                                DefNep
-------        ---------        ------       ---------                                                 ---------
A               Null             Null         (ए) अंग्रेजी वर्णमालाको पहिलो अक्षर         the first letter of the English alphabet
Null            A                adj.         एउटा, कोही, एक कुनै व्यक्ति                     one, any, some
Null            A                prep.      जब संज्ञामा उपसर्गको जस्तो यो              (when used as a prefix before nouns) 

 

 

 

new project vb.net Added a RadRibbonBar.  Make the form a shaped form.  
by pasting the imports line and the inherits line.

Imports

Telerik.WinControls.UI

Public

Class Form1
Inherits ShapedForm

End Class

Run the application.  Press any key exept the space bar and shift. and the app crashes. see bleow.   Has any one else seen this. is there a fix.  I am using 2008 Q1

System.NullReferenceException was unhandled
  Message="Object reference not set to an instance of an object."
  Source="Telerik.WinControls"
  StackTrace:
       at Telerik.WinControls.ComponentBehavior.ProcessUnmappedItems(List`1 childrenToBeMapped)
       at Telerik.WinControls.ComponentBehavior.IsPartOfKeyTip(Keys input, String representation)
       at Telerik.WinControls.ComponentBehavior.ProccessKeyMap(Keys input)
       at Telerik.WinControls.UI.RadRibbonBar.OnKeyDown(KeyEventArgs e)
       at System.Windows.Forms.Control.ProcessKeyEventArgs(Message& m)
       at System.Windows.Forms.Control.ProcessKeyMessage(Message& m)
       at System.Windows.Forms.Control.WmKeyChar(Message& m)
       at System.Windows.Forms.Control.WndProc(Message& m)
       at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
       at Telerik.WinControls.RadControl.WndProc(Message& m)
       at Telerik.WinControls.UI.RadRibbonBar.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(Int32 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 Test.My.MyApplication.Main(String[] Args) in 17d14f5c-a337-4978-8281-53493378c1071.vb:line 81
       at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()

I have tested this on 3 seperate apps and it is the same on all.

Thanks
 Paul

Hi, I'm looking for all RadControls (in XML) for Desert Theme especially RadForm. Where can I get it?

Thank You,
Marcin

Hi,

We have an application that uses a custom built CAB approach.  When a user clicks on a launcher a view is inserted into a UI region and populates.  This view is a wizardview and uses a radtabstrip to hold other views for each panel in the wizard.  The UI region that holds these views is a radpanel with a roundedrectangleshape.  The app also has a header area with launchers and picturbox (logo) in it.  This is also rounded and has a gradient background. 

The interface uses tablelayoutpanels and flowlayoutpanels extensively and initially these were causes huge headaches due to transparency and flickering.  This has been remedied as per other posts on your forums by enabled double buffering on these controls (custom inherited control double buffered tablelayoutpanel etc...).  However there is still significant slow down with painting operations which causes the screen layout to take quite a period of time to repaint.

This happens predominantly when loading the wizardview for the first time and when resizing the application window.  I have used suspendlayout and resumelayout during resize begin and resize end respectively on the form which improves the performance but doesn't have the same snappy feel that the user would expect.

Normal winforms performs a lot better than this, however I understand the complexities that are in the radcontrols (element tree) and the impact on GDI+, saying that our client is getting frustrated with us and at this stage we may have to consider other control libraries.

Any help would be appreciated.  If you wish I can open an support ticket and upload a version of the app.

Regards,
Marcus@C9

I have a PanelBar with a GroupElement which further has 5 Togglebuttons as child. I want to highlight the clicked togglebutton and make others Unhighlighted.
I am using togglestate ON/OFF property but its not working, below is my sample code.

Private Sub PanelBarElement1btnToggleButtonChild1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles PanelBarElement1btnToggleButtonChild1.Click
        PanelBarElement1btnToggleButtonChild1.ToggleState = Enumerations.ToggleState.On    
        PanelBarElement1btnToggleButtonChild2.ToggleState = Enumerations.ToggleState.Off
        PanelBarElement1btnToggleButtonChild3.ToggleState = Enumerations.ToggleState.Off
        PanelBarElement1btnToggleButtonChild4.ToggleState = Enumerations.ToggleState.Off
        PanelBarElement1btnToggleButtonChild5.ToggleState = Enumerations.ToggleState.Off
End Sub

Many thanks in advance...............
Savan

Hi,

Hi,
In my form at some event I am adding a RadDateTimePickerElement to a cell of a gridview. The RadDateTimePickerElement shows date picker. However my requirement is such that I want to show only a timepicker and want to select a specific time of day. But currently it allows me to select days and not time.