Questions on UI for WinForms Forum

1 answer

130 views

AllowAddNewRow when bound to LINQ datasource

private Unit u = new Unit();

u.setUnitContext();

IObjectScope context = u.context;

var q = from d in context.Extent<TblUnitType>()

select new { d.UnitType, d.Abbreviation };

radGridView1.DataSource = q.ToList();

When setting the grid.MasterTemplate.AllowAddNewRow = true; and upong adding a new row to the grid it throws an ArgumentOutOfRangeException... If a bind to a datatable everything works fine...

The question is how do I add a new row to the rows collection when the grid is bound to a "linq query".

Regards
Tor Sigve

GridView

answered on 28 Jul 2010

16 answers

266 views

Inconsistent built in Themes

Default themes are not listed in the Themes property of a few objects. I'm saying "few" because I'm only used Telerik for a couple of hours, so this is a pretty obvious problem if I was able to discover it this fast

-RadDock is missing Aqua, Vista, Telerik, Vista Black & Breeze at the very least
-RadMenu is missing Office2007Blue at the very least

How do I get all of the Themes added to the controls so users have a consistent set of colors?

Thanks

:)
jr

Themes and Visual Style Builder

answered on 27 Jul 2010

5 answers

182 views

Customized controls embedded in GridView

I try to embed RadCheckBoxElement to GridView in CellFormating event. My scenario is to show a RadCheckBoxElement in row "caption0". My Telerik controls version is Q1 2010.

    
                    void radGridView1_CellFormatting(object sender, CellFormattingEventArgs e)  
        
                    {  
        
                        if (e.CellElement.ColumnInfo is GridViewDataColumn && ((GridViewDataColumn)e.CellElement.ColumnInfo).FieldName == "Caption")  
        
                        {  
        
                            if (!(e.CellElement.RowElement is GridTableHeaderRowElement))  
        
                            {  
        
                                if (e.CellElement.Text.Equals("caption0"))  
        
                                {  
        
                                    if (e.CellElement.RowInfo.Cells["Value"].CellElement.Children.Count > 0)  
        
                                        return;  
        
                                    RadCheckBoxElement element = new RadCheckBoxElement();  
        
                                    e.CellElement.RowInfo.Cells["Value"].CellElement.Children.Add(element);  
        
                                }  
        
                            }  
        
                        }  
        
                    }

It seems that everything works fine without scrollbar.

However, if I scroll the scrollbar, a strange issue will happen. The RadCheckBoxElement will be embedded not only in row "caption0" but also in other rows. If I scroll the scrollbar several times, more and more RadCheckBoxElement will be shown in different rows.

Please refer to the attached images.

Could anybody help me? Thank you.

GridView

answered on 27 Jul 2010

1 answer

181 views

Transition effects like in WPF

I would love to see a transition effect much like what's in WPF but for a plain windows app. Something to make an object fade out while another fading in.

New Product Suggestions

answered on 27 Jul 2010

2 answers

205 views

RadRibbonBar problems with Expanded property

Hi,

im using the RadRibbonForm and try to collapse the RibbonBar by setting the property "Expanded" to false.

This call throws an exception: System.NullReferenceException in RadRibbonBarElement.DoExpandCollapse()

I try to change this property after "InitializeComponent()" and in several different Events.
When i apply this change in the "RadRibbonForm _Shown"-Event the "RibbonBar" collapses, but the error is also thrown.

Im using Telerik-Version Q1 2010

Thanks

RibbonBar

answered on 27 Jul 2010

1 answer

110 views

Changing Position in Grid after ObjectProvider.CancelAll

Hello,

I've a radGridView with an objectView as dataSource.
When the grid is sorted by a column, then, after executing the following command-lines, the objectView.position is changed. It doesn't matter, whether before there was changes in the data or not.

this.BindingContext[objectView1].CancelCurrentEdit();

this.objectProvider1.CancelAll();

This happens with the radGridView-Version 2010_Q2. In 2010_Q1 it was ok.
As a workaround i can store the postion-value before the CancelAll-method and set the old value after it. But i didn't need this to do in the last version of WinForms.

Regards

Roland

GridView

answered on 27 Jul 2010

1 answer

121 views

Error while installing Rad controls

Hi,

I have downloaded the trial version of the rad controls and tried installing the same in my home.

I face the following issue.

D:\Downloads\RadControls_WinForms_2010_2_10_713_trial.exe is not a valid Win32 application.

Attached the screen shot.

-Yuva

General Discussions

answered on 27 Jul 2010

2 answers

135 views

[Solved] Upgrading from Wincontrols Q1 2010 to Wincontrols Q2 2010

I'm not sure this question has been already asked but..
I have a pretty large Vb.net project that uses the combo box, listbox and TabStrip controls pretty heavily. The project is already just about halfway thru but these controls have been changed in the Q2 2010. So my question is, will the Upgrade wizard change the controls, replacing the old with the new, or, will I be forced to have to go into each of the forms replacing one with the other as shown in the videos.? Trying to get a handle on how much my Schedule may be adjusted with this change.
Thanks

General Discussions

answered on 26 Jul 2010

2 answers

178 views

[Solved] Rad Application Menu right-click

Hi,

I have a requirement to make RadApplicationMenu to open only by mouse right-click. How can I prevent mouse left button click and 'Enter' key pressing?

Thank you in advance.

ApplicationMenu

answered on 26 Jul 2010

1 answer

275 views

GridElement.BeginUpdate

Hello,

in Q2 2010 is GridElement obsolete. Is BeginUpdate also not necessary anymore (for the case that i am create manual multiple rows in code) ?

Regards,
Thomas

GridView

answered on 26 Jul 2010