Questions on UI for WinForms Forum

3 answers

183 views

Vertical scrollbar doesn’t appear in ToolWindow

Good morning.

I have a problem with the vertical scrollbar in a toolwindow. I use your RadControls for WinForms Q3 2009 release. I did the following steps:

New project, WindowsForm Application (with Visual Basic 2008 Express Edition).
Insert a RadDock, “Dock new window to left”. This is ToolWindow1.
Insert a radPanelBar in the toolwindow, dock = fill, groupstyle = explorerBarStyle.
By clicking on a button, the radPanelBar is programmatically filled with RadPanelBarGroupElement:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

RadPanelBar1.Items.Clear()

For i As Integer = 0 To 10

Dim ri As New Telerik.WinControls.UI.RadPanelBarGroupElement

ri.Caption = "GroupItem" & i

RadPanelBar1.Items.Add(ri)

If the form is small enough, you can see that no vertical scrollbar appears. As soon as you click on a groupitem, the scrollbar appears. If you click the button again, again the scrollbar disappears. What can I do to solve this problem?

Thank you.

Panelbar (obsolete as of Q2 2010)

answered on 27 May 2010

1 answer

143 views

RadProgressBar on MDIParent not updating when called from MDIChild

Hi,

I'm trying to update/show the status of a task which loads values from a database into a ComboBox, but the StatusStrip on the MDIParent is not updating to reflect this.

The code extract with relation to this task is as follows. I have put the database loading to a ComboBox in it's own BackgroundWorker to assist, but still no luck.

Code as follows:

    
                Private Sub frmTradingApplication_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 
        
                    'START: Set Theme for all Telerik Controls 
        
                    Telerik.WinControls.ThemeResolutionService.ApplicationThemeName = AppTheme 
        
                    'END: Set Theme for all Telerik Controls 
        
                    'Force Name into Name Field 
        
                    With rtxtTradeS1_Name 
        
                        .Text = FullName 
        
                        .ReadOnly = True 
        
                    End With 
        
                    'Load Data into Large Cap Combo Box 
        
                    BgWkr_LoadComboBox.RunWorkerAsync() 
        
                    'Disable Large Cap Combo Box & Other Text Box 
        
                    rcbTradeS1_LargeCapIfYes.Enabled = False 
        
                    rtxtTradeS1_LargeCapUnlisted.Enabled = False 
        
             Private Sub rcbTradeS1_LargeCapIfYes_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles rcbTradeS1_LargeCapIfYes.SelectedIndexChanged 
        
                    Select Case rcbTradeS1_LargeCapIfYes.SelectedItem.ToString 
        
                        Case "Please Select Large Cap Stock..." 
        
                            ErrorProvider_NewTrade.SetError(rtxtTradeS1_LargeCapUnlisted, "Invalid Selection!") 
        
                        Case "Other / Not Listed - Other / Not Listed" 
        
                            rcbTradeS1_LargeCapIfYes.Enabled = True 
        
                            rtxtTradeS1_LargeCapUnlisted.NullText = "Please enter the Large Cap Stock you are trading here..." 
        
                        Case Else 
        
                            'Large Cap Selection OK / Disable & Clear Unlisted Box 
        
                            With rtxtTradeS1_LargeCapUnlisted 
        
                                .Enabled = False 
        
                                .NullText = "Large Cap Selection OK" 
        
                            End With 
        
                    End Select 
        
                End Sub 
        
                Private Sub rrbTradeS1_LargeCapYes_ToggleStateChanged(ByVal sender As System.Object, ByVal args As Telerik.WinControls.UI.StateChangedEventArgs) Handles rrbTradeS1_LargeCapYes.ToggleStateChanged 
        
                    If rrbTradeS1_LargeCapYes.ToggleState = Telerik.WinControls.Enumerations.ToggleState.On Then 
        
                        rcbTradeS1_LargeCapIfYes.Enabled = True 
        
                    Else 
        
                        rcbTradeS1_LargeCapIfYes.Enabled = False 
        
                    End If 
        
                End Sub 
        
                Private Sub rrbTradeS1_LargeCapNo_ToggleStateChanged(ByVal sender As System.Object, ByVal args As Telerik.WinControls.UI.StateChangedEventArgs) Handles rrbTradeS1_LargeCapNo.ToggleStateChanged 
        
                    If rrbTradeS1_LargeCapYes.ToggleState = Telerik.WinControls.Enumerations.ToggleState.On Then 
        
                        rcbTradeS1_LargeCapIfYes.Enabled = True 
        
                    Else 
        
                        rcbTradeS1_LargeCapIfYes.Enabled = False 
        
                    End If 
        
                End Sub 
        
                Private Sub BgWkr_LoadComboBox_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles BgWkr_LoadComboBox.DoWork 
        
                    Try 
        
                        BgWkr_LoadComboBox.WorkerReportsProgress = True 
        
                        My.Forms.frmMain.sbarProgress.ShowProgressIndicator = True 
        
                        Dim dbAdapter As New SqlDataAdapter("SELECT * FROM eTAS.dbo.viewLargeCapStockOrigins", My.Settings.eTASConnectionString) 
        
                        Dim dbDataSet As New DataSet 
        
                        Dim PercentValue As Integer 
        
                        Dim RowCounter As Integer = 0 
        
                        dbAdapter.Fill(dbDataSet) 
        
                        For Each dbRow As DataRow In dbDataSet.Tables(0).Rows 
        
                            RowCounter += 1 
        
                            Dim rcbTradeS1_LargeCapIfYesItem As New Telerik.WinControls.UI.RadComboBoxItem 
        
                            rcbTradeS1_LargeCapIfYesItem.Text = "" 
        
                            rcbTradeS1_LargeCapIfYesItem.Text = dbRow.Item("CountryName").ToString & " - " & dbRow.Item("LargeCapStockName").ToString 
        
                            rcbTradeS1_LargeCapIfYesItem.Value = dbRow.Item("CountryName").ToString & " - " & dbRow.Item("LargeCapStockName").ToString 
        
                            rcbTradeS1_LargeCapIfYes.Items.Add(New Telerik.WinControls.UI.RadComboBoxItem(rcbTradeS1_LargeCapIfYesItem.Text, CObj(rcbTradeS1_LargeCapIfYesItem.Value))) 
        
                            PercentValue = CInt(((RowCounter / dbDataSet.Tables(0).Rows.Count) * 100)) 
        
                            BgWkr_LoadComboBox.ReportProgress(PercentValue, "Loading Large Cap Stocks... " & PercentValue & "% Complete...") 
        
                        Next 
        
                    Catch ex As Exception 
        
                        MsgBox(ex.Message, MsgBoxStyle.Critical, "Load Combo Box Error...") 
        
                    End Try 
        
                End Sub 
        
                Private Sub BgWkr_LoadComboBox_ProgressChanged(ByVal sender As Object, ByVal e As System.ComponentModel.ProgressChangedEventArgs) Handles BgWkr_LoadComboBox.ProgressChanged 
        
                    Try 
        
                        My.Forms.frmMain.sbarStatus.Text = e.UserState 
        
                        My.Forms.frmMain.sbarProgress.Value1 = e.ProgressPercentage 
        
                        My.Forms.frmMain.sbarMain.Refresh() 
        
                        CollectGarbage() 
        
                    Catch ex As Exception 
        
                        MsgBox(ex.Message & vbCrLf & vbCrLf & ex.InnerException.ToString, MsgBoxStyle.Critical, "BgWkr_LoadComboBox_ProgressChanged Error") 
        
                    End Try 
        
                End Sub 
        
                Private Sub BgWkr_LoadComboBox_RunWorkerCompleted(ByVal sender As Object, ByVal e As System.ComponentModel.RunWorkerCompletedEventArgs) Handles BgWkr_LoadComboBox.RunWorkerCompleted 
        
                    My.Forms.frmMain.sbarStatus.Text = "Large Cap Stocks Loaded OK" 
        
                    My.Forms.frmMain.sbarProgress.Value1 = 0 
        
                    My.Forms.frmMain.sbarMain.Refresh() 
        
                    CollectGarbage() 
        
                End Sub

Your prompt reply and assistance is greatly appreciated

Cheers,
Ray.

ProgressBar

answered on 27 May 2010

3 answers

97 views

Themes and Telerik CAB supporting RadDock???

Hello everybody,

we are using Telerik CAB Enabling Kit for RadControls for WinForms and RadControls Q1 2010 SP2 in our application. When I try to apply any of the provided themes, the TabStrip of the dockingmanager does not look very well - it is absolutely different from any other TabStrip (except when using the theme called "Telerik") + some(!!!) menu entries are shown with white fontcolor after appliing "Aqua" - Theme and then "Breeze".

I found this blog entry http://blogs.telerik.com/blogs/posts/09-06-26/meet_the_new_raddock_for_winforms_%E2%80%93_official_version_coming_with_q2_2009.aspx .

"Jordan" answered: "Yes, Miguel, we will rework the Telerik CAB Kit and the sample CAB application to work with the new RadDock component. Expect this to happen around Q2 SP1, which is 4-5 weeks away." on 30 Jun 2009, but as I could see, it did not happen yet!!!

So how can I use Telerik Themes with Telerik CAB??? OR
How long does it take, rework the Telerik CAB Kit and the sample CAB application to work with the new RadDock component???

Thanks for your help,
Thomas

Dock

answered on 27 May 2010

1 answer

493 views

Width of ContextMenu

I have created a ContextMenu with two buttons.
But if I show the ContextMenu not all of the button is shown.
How can I set the width of the ContextMenu ?

ContextMenu

answered on 27 May 2010

2 answers

67 views

TreeNode designer doesn't work properly

Hi,

if I try to add nodes with the nodes designer everything works fine except, there is no way to accept the changes. The nodes editor dialog has no accept button or something similar. Using the return doesn't help, too. Thereto, see attached image.

Regards

Martin

Treeview

answered on 27 May 2010

3 answers

315 views

DecimalPlaces in GridViewDecimalColumn doesn't work

No matter what I set to value DecimalPlaces, grid displays number of decimal places from database.

GridView

answered on 27 May 2010

2 answers

847 views

Allow only some columns as editable

1. GridView with mixture of text, decimal and combobox columns. I want to allow only combobox as editable, the rest are for display only. I don't see a property to override the default for the entire grid. Do I really have to handle an edit event and cancel if it's not a column where I wish to allow changes? If so, what's the event? If not, how can I set a specific column to allow edit or set other columns to disallow edit?

2. Is there an IsDirty for the entire grid so I can prompt the user to save? Is there an IsDirty for a column and/or a row so I can iterate through and write only the delta's unbound via an SQL stored proc? I would prefer to not have to track changes in my own code.

3. It doesn't seem like GridView likes to update the display properly from a background thread. Sometimes there's data, sometimes not, and sometimes not all the data. I don't want to suspend the UI while I'm loading data. I am running unbound.

Thanks

GridView

answered on 27 May 2010

3 answers

143 views

PanelBarGroupElement overlapping

Howdy folks,

I have a RadPanelBar that I am dynamically adding groups and items to. Things are starting to come together, but a few of my groups seem to have too many elements (radButtonElement) and are being overlapped by the next group below it. I am using the ExplorerBarStyle group style so I can expand and collapse my groups. Also, the groups are expanded by default when the form loads. When I collapse the groups that overlap the longer group, I can see the elements of the long group underneath the collapsed group headers. It seems like there is a set height for each panel or am I missing something?

Any help here would be wonderful. I hope that was enough information, but feel free to ask for any clarification. Thanks.

Panelbar (obsolete as of Q2 2010)

answered on 26 May 2010

1 answer

161 views

Dockpanel splitter onmouseover change color

Hi Telerik Team,

My application uses CAB SCSF and my layout has two workspaces (Left and right) where left deals with Navigation, right deals with the screen display. Over here I have a navgation bar in my left workspace which is dockable using a docking panel. Kindly help me out in setting the color of the splitter whenever we have the mouse over it. I mean to indicate the user that there is a splitter by showing it with a color.

Tia
Kris

Dock

answered on 26 May 2010

3 answers

168 views

Get rid of gradient background

I can't find a way to get rid of the default gradient backcolor of the raddock control. I've tried the following:

spltContainer.Style.SetValue(Telerik.WinControls.Primitives.FillPrimitive.GradientStyleProperty, Telerik.WinControls.GradientStyles.Solid)

And it has no effect. I've even tried getting the FillPrimitive child, and setting it's GradientStyle to Solid, but it just get's overwritten (if I set the value using RadControlSpy it works).

Dock

answered on 25 May 2010