Questions on UI for WinForms Forum

9 answers

377 views

ToggleState should not obsolete IsChecked

Is there a compelling reason to obsolete the IsChecked property of Check Boxes and Radio Buttons?
For what it's worth, the .Net checkbox has both a Checked (boolean) and CheckState property, I thought this was an established standard. Why mess with it?

Personally, I have rarely (I think never) had a reason to use a three-state control. It's neat and different, and a way to clearly indicate an unset value, but I haven't had a reason to utilize an indeterminate state.
However, I've implemented and used thousands upon thousands of checkboxes, and a simple boolean setting has so far always made the most sense.
I would be very sad to have to change nearly 400 lines of code from a clean, easy to understand

    
            checkbox.IsChecked = true;

To the unwieldy

    
            checkbox.ToggleState =   
        
            SomeCompany.ControlNamespace.SubNamespace.SomeEnumeration.On;

Worse still, many of these are directly connected to a simple on-off value somewhere. So I'd be going from:

    
            checkbox.IsChecked = LightSwitch.SwitchedOn;

To the even more gangly

    
            if (LightSwitch.SwitchedOn)  
        
              checkbox.ToggleState = SomeCompany.ControlNamespace.SubNamespace.SomeEnumeration.On;  
        
            else 
        
              checkbox.ToggleState = SomeCompany.ControlNamespace.SubNamespace.SomeEnumeration.Off;

Am I the only one who feels the boolean property needs to be retained?

Buttons, RadioButton, CheckBox, etc

answered on 10 Nov 2010

7 answers

546 views

Display image in gridview header

Hi

I am using radgrid in visual studio 2008 .i want to display image in grid header on left side when i click that imagebutton popup should show

so can anyone help how to display image in gridview header

regards
suresh.s

GridView

answered on 10 Nov 2010

1 answer

95 views

not compatible error with 2010.3

I'm going to open a ticket on this, but wanted to share my resolution first.. I just downloaded the 2010 Q3 release (build 1109) and received a version not compatible, check whether you need an x86 or x64 version of the program. Running Windows 7 x64 version. All other Q3 installers worked fine. This one though, is the only installer that was an .exe. All others are .msi files. Renamed the extension to .msi and it installs without error.

Cheers.

General Discussions

answered on 10 Nov 2010

4 answers

317 views

How does work EnableFastScrolling ?

Hi

I have some performance issue in gridview and I would like to try use property EnableFastScrolling.

What happens if fast scrolling in enabled? Why it is not enabled by default?

I checked documentation: http://www.telerik.com/help/winforms/telerik.wincontrols.gridview-telerik.wincontrols.ui.radgridview-enablefastscrolling.html but there are no any details.

Regards

GridView

answered on 10 Nov 2010

3 answers

460 views

radRadioButton - Binding IsChecked

Hi,

I have a custom class which is bindable. Lets assume I got the following two properties
public bool X
{
    get {...}
    set {...}
}

public bool Y
{
    get {...}
    set {...}
}

The X and Y properties are mutually exclusive (i.e. X && Y is always false and X || Y is always true)

I have a user control that contains two different groups. In each group I have a radio button (from the Rad UI Controls).
The constructor of the user control binds the property "IsChecked" of the two radio buttons to the property X and to the property Y respectively. For some reason, whenever a radio button is pressed, the setter of the property is not called. This seems to me as a bug since when I put two radio buttons from the .NET library (the regular radio buttons) they work fine.

I was trying to find a utility to fill a bug report but couldn't find it.

Please let me know if this is a known issue.

Thanks

Buttons, RadioButton, CheckBox, etc

answered on 10 Nov 2010

6 answers

369 views

Pagination in grid view

Hai

I am binding the radgrid view with lacs of data. I need to create pagination in radgridview.
How can i create pagination radgridview?

Thanks

GridView

answered on 10 Nov 2010

2 answers

303 views

Filter Row in MultiColumn Combobox

hello

i inherited a user control from Multicolumn Combobox , the problem is i tried to enable the filter row inside the grid of multicolumn combobox but i was not successfull !

how can i enable filter row on the drop down grid ?

MultiColumn ComboBox

answered on 10 Nov 2010

3 answers

124 views

No 'IsEditable' property in GridViewRowInfo ?

Hello,

I'm testing the RadControls for WinForms for a new project (we plan to upgrade to "Premium Collection for .NET" when we will renew our subscription for RadControls for ASP.NET Ajax license before november 20th).

I'm using 2010.2.10.914 trial version in a project in VB.NET targeting framework 4.

In a data edition scenario, I would like to programmatically prevent some rows from being edited. For this purpose, I want to set 'IsEditable' property to false, but I cannot find this property on GridViewRowInfo.

Please find attached to this post a screen capture showing that this property is not available in Intellisense.

Am I doing something wrong ? What's the recommanded way to programmatically lock some rows (not all) in an editable grid view ?

Thanks in advance !

GridView

answered on 10 Nov 2010

4 answers

111 views

Forms not maximized on Windows 7

Hello,

I'm using the raddock in my mdi application and it works great.
However, when I run it on windows 7 I got a side effect: I've got a main form and several other forms that I load when I click on a button in the main form. When I load my form with the code below my form doesn't load maximized. When I change the property 'windowstate' on the form frmDemo to maximized it's showed maximized but I would like to do this by code..

On XP the application works without any problems.

So my question now, is it a programmer fault or a windows 7 telerik bug?

Greetz,
Joris

Dim frmDemo As New FrmDemo

frmDemo .MdiParent = Me

frmDemo .StartPosition = FormStartPosition.CenterParent

frmDemo .WindowState = FormWindowState.Maximized

frmDemo .Show()

Dock

answered on 10 Nov 2010

4 answers

166 views

KeyPress in RadMaskedEdit

hello

i am using 2010 Q2 controls and inherited my user control from RadMaskedEdit. the problem is none of the KeyPress , KeyDown, KeyUp, PreviewKewDown fires.

why? and how can i solve it ?

MaskedEditBox

answered on 10 Nov 2010