Questions on UI for WinForms Forum

2 answers

154 views

I have a DataTable with nested data (some row has a parent_id that should point to another row). Is it possible to bind the data automatically to the TreeView DataSource?

Treeview

answered on 03 Mar 2008

0 answers

265 views

Beta of RadControls for WinForms Q1 2008 available for download

It is our greatest pleasure to announce the first beta of RadControls for WinForms Q1 2008!

This early Q1 2008 preview includes an appetizer of the anticipated major overhaul of RadGridView for WinForms as well as a new major version of RadMaskedEditBox and extended RTL language support. Q1 2008, when officially released in April, will also introduce a couple of new controls and several new versions of the current WinForms controls, which are not part of the current beta.

RadGridView

Our extensive research on the new RadGridView version started back in October 2007 and focused exclusively on the needs of our customers, namely better usability and top-notch performance, and revealed several areas that needed our attention:

UI and painting improvements, based on the Telerik Presentation Framework (TPF)
Performance improvements in the data layer
Performance improvements in the data <-> UI communication
Stability and simpler API

The great news is that RadGridView’s performance has been optimized dramatically and the results are more than impressive*:

Based on the “high refresh” performance test with 13 rows x 13 columns, the new data layer offers outstanding refresh performance with flat data: 2-3 ms (vs. 460ms in Q3 2007!)
Average time for loading 300,000 records of data: ~ 340 ms
Average time for grouping 300,000 records: ~ 100 ms

* Tested on a WinXP machine, 2GB RAM, Intel Core 2 @ 2.13GHz (just one core utilized during the tests)

Usability has also been greatly improved, and the API simplified.

There are several features which we left for a subsequent beta. We will suggest reviewing the list of Known Issues and the Backwards Compatibility log before using the RadGridView beta in production. You can download the docs below.

RadMaskedEditBox

The Q1 2008 beta also features a fully functional preview of the new major version of RadMaskedEditBox. It adds a new Numeric MaskType which allows the user to set culture-specific masks for inputting currency, decimal, and percent values.

RTL Language Support

We have added RTL Language support in RadDateTimePicker , RadPanelBar and RadScrollBar.

Download

You can test the Q1 2008 beta first-hand by downloading the trial version from here (right-click and select Save As):

Build: RadControls for WinForms Q1 2008 Beta (trial) installer

Docs: Known Issues and Backwards Comapatibility

Help: RadControls_for_WinForms_Help_Q1_2008_Beta.zip
(new versions of the help files will be posted as soon as they become available)

You can use the public WinForms Beta Forum to share your feedback and comments. Our developers will be addressing all questions posted.

The Telerik Team

GridView

asked on 29 Feb 2008

2 answers

338 views

Adding DataSource to Ribbon Combo Box

Hi

I am having difficulty binding a RibbonBar ComboBox to a DataTable. I have created the RibbonBar control at Design-Time but all other objects are created at Run-Time for various application reasons.

I am able to create a ribbonbar, tab, chunk and combobox objects. The radComboBoxElement does not display in my chunk unless i set the autosize property to False and manually set the size property. I set the datasource, displaymember and valuememeber properties to valid entries as I would a normal combobox, but at runtime the combobox does not populate.

I have recreated the problem in a sample project below. I would appreciate any assistance anyone is able to offer. I have searched the forums but cannot find any articles specific to this issue.

Regards

Brendan

    
            Imports Telerik.WinControls  
        
            Imports Telerik.WinControls.UI  
        
            Public Class Form1  
        
            Friend tab1 As New TabItem  
        
                Friend commandtab1 As New RadRibbonBarCommandTab  
        
                Friend chunk1 As New RadRibbonBarChunk  
        
                Friend combo1 As New RadComboBoxElement  
        
                Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load  
        
                    Dim conSQLConnection As New SqlClient.SqlConnection("DATA SOURCE=SQLSERVER.DOMAIN.COM;Integrated Security=SSPI;INITIAL CATALOG=Table1")  
        
                    Dim adpTable1Adapter As New SqlClient.SqlDataAdapter("SELECT * FROM Table1", conSQLConnection)  
        
                    Dim tblTable1 As New DataTable  
        
                    conSQLConnection.Open()  
        
                    adpExpressAdapter.Fill(tblExpressComputers)  
        
                    tab1.Text = "Tab 1" 
        
                    commandtab1.Tab = tab1  
        
                    ribbon1.CommandTabs.Add(commandtab1)  
        
                    chunk1.Text = "Chunk 1" 
        
                    commandtab1.Items.Add(chunk1)  
        
                    combo1.AutoSize = False 
        
                    combo1.Size = New Drawing.Size(100, 20)  
        
                    combo1.DataSource = tblTable1Computers  
        
                    combo1.ValueMember = "computer_id" 
        
                    combo1.DisplayMember = "name" 
        
                    chunk1.Items.Add(combo1)  
        
                End Sub

RibbonBar

answered on 28 Feb 2008

2 answers

186 views

Auto-sizing and Auto-positioning of chunks...

Hi,

I am writing an application where I restricting user access to certain components according to user's privilege by disabling or hiding the components. I am using ribbon bar and rad tab strip that contains different chunks and inside which there are rad button element. Now, the problem I am facing is when I hide buttons inside chuck or the whole chunk the chunks do not resize or relocate themselves. It shows empty spaces in between. AutoSize property is set to true and I have tried AutoSizeMode set to 'Auto' and 'WrapAroundChildren' but its still not working. Can you please help me out with this?

Thanks in advance for the help.

Par

RibbonBar

answered on 28 Feb 2008

1 answer

134 views

column not accept the changes

I have a radgrid with binding list of objects:

motivoExlusionBindingSource.DataSource = Solicitud.MotivosExclusion.ListaMotivosTipo;

radGridView1.DataSource = motivoExlusionBindingSource;

in execution time:
i(like user) modify value from rad grid column,next i press save button of my form.

the column change was not visible in save button code.

if i after column change press another row or column then change is visible.

GridView

answered on 28 Feb 2008

1 answer

100 views

Screen Tips

Can screen tips only be added to ribbonbar elements ?

I see other controls like the radbuttons etc have a section under root element for screen tips but setting those doesn't seem to have any effect at all.

Is it possible to use the office 2007 style screen tips on other radcontrols ? If so which ? and why does it not work , following the same steps I followed
implementing them on the ribbonbar.

If not , will there be future support to use these tips across all the telerik controls ? (They far more desireable than the standard tooltips for sure)

RibbonBar

answered on 27 Feb 2008

1 answer

90 views

GridViewBooleanColumn getcleared when scroll

I implemented a GridViewBooleanColumn so that the user can select a series of rows. If I scroll the selected rows, the values get cleared when I scroll them back into view.

What is the mode for maintain the selected data when scroll back into the view?

Thanks

David

GridView

answered on 27 Feb 2008

6 answers

195 views

Access the name property of RadButtonElement

Hi,

I have a RibbonBar in my application which contains different RadtabStrip with Chunks and RadButtonElements inside chunks. Now, the problem I am facing is that I need to get through each RadButtonElement on runtime and disable appropriate RadButtonElements according to the condition. The only unique way to identify radbuttonelement is through its name. I am using recursive algorithm to check each element 1 by 1... I tried using 'subelement.Name' property to identify the control but its showing me empty string for all the control names. can anyone help me out with this? I would highly appreciate any help possible.

Thanks

Par

RibbonBar

answered on 27 Feb 2008

1 answer

143 views

Dock Activation

I've noticed that if you have multiple docks open in the same area so that it creates the tabs at the bottom, there is an odd behavior with activation events.

If you open/create a dock it is the top dock and the activated event fires.

If you open/create another then it is the top dock and the activated event fires.

If you switch back and forth between the two open docks each time you click one it becomes the top dock and the activated event fires.

If however you close the top dock and the one underneath "passively" becomes the top dock, the activated event does not fire. In order to "activate" it you have to click on another dock and then click on that one again.

It seems to me that if you close a dock and a dock below that one now has focus and is at the top, then it should activate.

I use the activated event to do several small bits of processing and for it to sometimes not fire when the user would think it should is cumbersome.

If this is a bug, can a fix be added to the next release?

If this is not a bug, can you enlighten me as to why this isn't the intended behavior and perhaps provide a work around that would handle this case?

Thanks,

Alex

Dock

answered on 27 Feb 2008

1 answer

85 views

Using Two versions of Telerik RadGridView

Hi Telerik Team,

I am using Telerik Gridview Q2 2007 and Q3 2008 .

I am having two forms for from1 i want to use RadGridview of Q2 2007 version.

And For form2 i want to use RadGridview of Q3 2008 version.

Is it possible by installing both.

Thanks
Sushil

GridView

answered on 26 Feb 2008