Questions on UI for WinForms Forum

11 answers

181 views

Upgrade WinControls 2010 to 2015

Hi

I have a legacy project that implemented with WinControls 2010. Now I should upgrade it to 2015 version (because it has problems with .net 4.5)

TabStripControl and other obsolete controls used in that project. So how can I upgrade them to new controls.

I managed to get 2011 version and upgrdae controls to that version and then use newer versions but there is no 2011 version available.

So how could I upgrade the project?

General Discussions

answered on 09 Jun 2015

2 answers

275 views

Mouse scrollwheel changes RadDropdownList even when you click away

Hi,

If you have a RadDropdownList on a form at run-time and the user clicks on it, and then decides to click on the form itself (not another control) the mousewheel can still be used to change the RadDropdownList contents.

This seems like it could lead to accidental changes to the RadDropdownList's contents.

Is this by design? Is there a simple way to prevent this behavior?

Thanks,

-Lou

DropDownList

answered on 08 Jun 2015

1 answer

115 views

DropDownList with datasource, not working as expected

Hello,

I try to use DropDownList with datasource, but is not working as expected.

When I Clear() the BindingSource, the RAD component still have "Text" with last item displayed which is abnormal.

Please see the code, the normal windows ComboBox works as expected.

Any fixes?

public partial class Form1 : Form

{

List<string> list = new List<string>();

BindingSource bsource = new BindingSource();

public Form1()

{

InitializeComponent();

bsource.DataSource = list;

}

private void Form1_Load(object sender, EventArgs e)

{

//Set list dataSource

comboBox1.DataSource = bsource;

radDropDownList1.DataSource = bsource;

//Now add an element via Binding object

bsource.Add("One");

bsource.Add("Two");

}

private void button1_Click(object sender, EventArgs e)

{

bsource.Add("Three");

}

private void button2_Click(object sender, EventArgs e)

{

bsource.Clear();

}

DropDownList

answered on 08 Jun 2015

1 answer

136 views

Event VisibleRange?

Hi to all,

in past I used ScheduleView for WPF and Silverlight.

Now I have to use Scheduler for WinForm, but I need to populate DataSource every time change period range, indipendently ViewType.

I need to this features because I can't link this control directly to my database, then I need to know when user change period range that he see.

Is it possible?

In WPF and Silverlight I used VisibleRange event.

Scheduler and Reminder

answered on 08 Jun 2015

5 answers

553 views

Buttons can be clicked with middle or right click

We've run into some situations where a right click on a particular Telerik control behaves in the way we expect only a left click to behave.

For example, we have a Command Bar with a bunch of buttons. If you right click one of the buttons, the Click event occurs and our application ends up doing the logic associated with the button. End users are confused because they don't expect a right-click to trigger a button click. The same goes for the middle click. It seems like the buttons in a command bar should only raise the Click event if they are clicked with the left mouse (assuming right-handed mouse). I'm not sure if the command bar supports keyboard navigation....but if so, then pressing the spacebar with the button focused should also trigger the Click event.

For normal buttons, this seems to work as I expect (right or middle click does nothing, spacebar triggers click event, etc.). I also found this old forum thread that talked about similar issues that I think have been fixed: http://www.telerik.com/forums/you-can-right-click-to-click-button

There are two other places where I've noticed right click works and I think those are bugs as well.

1. Checkboxes can be checked/unchecked by right/middle clicking on them (or clicking on the label). That seems wrong to me. The checkboxes inside of tree views also have this problem. However, checkboxes inside grids don't seem to have this problem.

2. I can open dropdowns by right/middle clicking the little down arrow on the right edge of the dropdown. That seems wrong.

Finally, I've noticed that buttons show the 'clicked' state on mouse down of the middle button. That doesn't seem right although I'm not 100% about that. The mouse down state also appears for right click if I right click enough time. This happens even on regular buttons.

Hopefully my explanations of the various issues I'm seeing make sense. I can see all of these problems in the demos included with the installation so I don't think any of them are issues with my code.

CommandBar

answered on 05 Jun 2015

3 answers

104 views

Dock host window Scrollbars

Hi Telerik,

I'm trying to use RadDock in Your Demos and i have a problem:
When I add alot of documents ( such as 20 docs), the main screen only show 10 documents and i must click to OverlowDropdownButton on the right to know all document opened.

I wants to ask:
1. How to show Next and Previous Button beside OverflowDropdownButton

I tried all samples from here:

http://www.telerik.com/community/forums/winforms/dock/next-and-previous-button.aspx

but doesnt work with Q3 2012 SP1, why? Buttons are drawn, but program crashes on close and list button, scoll buttons have no function.

Thanks in advance

Dock