Questions on UI for WinForms Forum

1 answer

122 views

Hello,

It seems that radMenu1.SelectFirstVisibleItem(); doesn't work.
I'm trying to select a raditem from codebehind, not sure if this is possible. My goal is to always have one item "selected" all the time.
Please help.
Thanks

Menu

answered on 01 Sep 2011

2 answers

197 views

how to insert update delete auto use RadGridView?

GridView WPF control can insert update delete automatic and insert connection to SQL.How can i do like that in RadGridView?if can,can you make a video to easy understand?I want to insert update delete like the demo Command of RadGridView 100% with SQL server using C#.how con i do?

thank you thank you very very much!Please!

GridView

answered on 01 Sep 2011

1 answer

117 views

Toggle Button + Items (Dropdown)

Hi. I would like to have a RadToggleButtonElement on my ribbon bar, but I would also like it to be able to have items (aka children, aka a dropdown menu). This may sound strange, but if you open Microsoft Word you'll see what I mean with the "bullet" button - it allows you to turn bullets on or off (toggle), but it also has a dropdown to allow you to set the bullet style.

I don't see the ability to add items to a RadToggleButtonElement in the RadRibbon. Is there a way to do this in the 2011 Q1 SP1 release (or was it added in 2011 Q2) ?

Thanks!

RibbonBar

answered on 01 Sep 2011

2 answers

221 views

RadGridView grid in grid hierarchy

Hello,

We are evaluating whether to use Telerik RadGridView (among other Telerik controls) for purposes of supporting our application.

Basically, what we've got is classes of Abstract Class A, i.e. Class B : A, Class C : A, etc, which all have properties of Abstract Class X, Class Y : X, Class Z : X, and so forth. Of course, a bit more complex than that, but this illustrates what we're after.

So, we would want to support loading up a RadGridView top level with Class A classes and requisite editing capabilities, potentially grouping by the class, i.e. Class B or Class C, and listing those types of objects. Then we would want to possibly expand each of these instances and list the properties, say Class B.Y, Class B.Z, and so forth, in a sub-grid to the grid.

We wouldn't necessarily be working with a physical database, but we would plausibly be working through System.Linq enumerated collections more than likely. And then load or save to or from Xml resources. That's just an aside, nothing to do with the grid per se.

Okay, so how capable is the control to do something like this?

Regards,

Michael

GridView

answered on 01 Sep 2011

3 answers

310 views

RadDock serious performance problem

Hi,

I work in public safety and building fast applications is critical. We have to rebuild a VB6 application in .NET, and we want to use Telerik to do so. However, while trying the RadDock control, I found that it is not really fast, and not efficient at all. I have to load a couple of tool windows, containing labels textboxes, comboboxes and sometimes gridviews,

Maybe I'm not using the proper controls, but I want you guys to have a look at it, and explain to me why it is so slow, and how could I improve the performances.

The control I'm loading in the ToolWindow is a RadForm. Here is the call opening the ToolWindow :

private void radMenuItem2_Click(object sender, EventArgs e)

{

RadForm1 form = new RadForm1();

radDock1.DockControl(form, Telerik.WinControls.UI.Docking.DockPosition.Left, Telerik.WinControls.UI.Docking.DockType.ToolWindow);

}

It takes about 3-4 seconds to load.
My biggest concern is that the app is already very slow, and there is not even a single data fetched and display in the form...

Thanks a lot for your help!

Dock

answered on 01 Sep 2011

4 answers

161 views

Display of the selected item

Hi,
i want a special display of my selecteditem.
I don't speak english very well so i took a screenshot of what i have, and a second of what i want.
I only want to change the state of the selecteditem, i want to keep the orginal state when i click arrow to change the element.

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 01 Sep 2011

4 answers

155 views

Q2 2011 e.Row.ViewTemplate.Refresh();

Hi All,

I have a grid with large number of records and child rows attached. If I scroll down to even one page and chagne the value of a child row's cell, as soon as i leave the cell scroll bar goes back to the top which is causing hard time because you have to scroll down again and find the record to update other cells.

I have tested with another project as soon as we execute 'e.Row.ViewTemplate.Refresh(); ' it took the scroll bar back to top I have tried other functions too but problem persist. It is a bug in Q2 2011?

Thanks

GridView

answered on 01 Sep 2011

1 answer

293 views

ScrollControlIntoView doesn't work

How conditions have to exist that ScrollControlIntoView work?

I've set AutoScroll = true for radTreeViewControl and I call :

tn - is a found node

    DirectoryRadTreeView.SelectedNode = tn;
    DirectoryRadTreeView.BringIntoView(tn);
    DirectoryRadTreeView.ScrollControlIntoView(DirectoryRadTreeView);

Treeview

answered on 01 Sep 2011

4 answers

201 views

RadMaskedEditBox MouseClick Event

I'm trying to use the mouse click event on a RadMaskedEditBox, however nothing fires. Is this a bug?

thanks,

Bret

MaskedEditBox

answered on 01 Sep 2011

4 answers

272 views

problem with SelectedItem

Hi I was using the following with a standard listBox

Private Sub RadListControl1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As Telerik.WinControls.UI.Data.PositionChangedEventArgs) Handles RadListControl1.SelectedIndexChanged

If RadListControl1.SelectedIndex > -1 Then

Dim tenants As Tenant = RadListControl1.SelectedItem

RadTextBox5.Text = tenants.ID

RadTextBox6.Text = tenants.FirstName

RadTextBox7.Text = tenants.Existing

RadTextBox8.Text = tenants.LastName

End If

End Sub

however when I try to use the RadListControl I get an error on this line

Dim tenants As Tenant = RadListControl1.SelectedItem

error Value of Type telerik.win.controls.UI.RadListDataItem ' cannot be converted to mainSystem.Tenant?

please advise

ListControl