Questions on UI for WinForms Forum

2 answers

171 views

2011 Q2 Treeview - how assigning ImageKey on nodes?

Hi i fill the treeview via code and works well, but i need a way to asign a icon from a assigned imagelist on the nodes.
The Data assignemend is:

- ChildMember = id
- DisplayMember = Label
- ParentMember = pid
- Tag = ImageKey
- ValueMember = ImageKey

I have tested with the tag and the valuemember fields without success, the tag field is allways empty :(

I have tryed to assign the CollectionChanged event, ut it does not fire when the datasource is bound... !?

radTreeView1.Nodes.CollectionChanged += new Telerik.WinControls.Data.NotifyCollectionChangedEventHandler(Nodes_CollectionChanged);

List<TreeItem> items = new List<TreeItem>();

{

TreeItem t1 = new TreeItem();

t1.id = 1;

t1.Label = "Home";

t1.ImageKey = "airplane";

items.Add(t1);

}

{

TreeItem t1 = new TreeItem();

t1.id = 2;

t1.pid = 1;

t1.Label = "Level 2";

t1.ImageKey = "comments";

items.Add(t1);

}

radTreeView1.ValueMember = "id";

radTreeView1.ParentMember = "pid";

radTreeView1.DisplayMember = "Label";

radTreeView1.Tag = "ImageKey";

radTreeView1.DataSource = items;

void Nodes_CollectionChanged(object sender, Telerik.WinControls.Data.NotifyCollectionChangedEventArgs e)

{

RadTreeNode n = ((RadTreeNode)e.NewItems[0]);

((RadTreeNode)e.NewItems[0]).ImageKey = n.Tag.ToString();

}

public class TreeItem

{

public int id { get; set; }

public int pid { get; set; }

public string Label { get; set; }

public string ImageKey { get; set; }

}

Any help would be great
Thx
Volkan Senguel

Treeview

answered on 11 Aug 2011

1 answer

341 views

Scroll to bottom of the grid

Hi,

How can i scroll to bottom of the grid?

I need to see child template of a new row.

With the following code i only see the new row.

grid.TableElement.ScrollToRow(e.Row);

Thanks.

GridView

answered on 10 Aug 2011

1 answer

145 views

PageViewStripElement Bakcolor on unselected tab

I have an need to change the tabstrip backcolor to something other than the theme color when there is certain information in a tab. So far I have been able to use this:

Dim pageViewStripElement = TryCast(DirectCast((tcOrganization.ViewElement).ContentArea, Telerik.WinControls.UI.RadPageViewContentAreaElement).Owner, RadPageViewStripElement)
DirectCast(pageViewStripElement, Telerik.WinControls.UI.RadPageViewElement).Items(1).NumberOfColors = 1
DirectCast(pageViewStripElement, Telerik.WinControls.UI.RadPageViewElement).Items(1).BackColor = Drawing.Color.Yellow

That works fine if you mouse over the tab button but I want it to stay that color even in a state that is not moused over or selected. How can I accomplish this without out using the theme builder. I need to be able to have this happen for separate tabs on different forms so being able to accomplish this programatically is a must. Thanks for any help!

PageView

answered on 10 Aug 2011

4 answers

138 views

Translation only works partially with RadSchedulers

Dear Telerik Team,

I'm current using Q1 2011 SP with VS2008. When applying the example in the help file for the RadScheduler to translate the RadScheduler strings and in example:

RadSchedulerLocalizationProvider.CurrentProvider =

New CustomSchedulerLocalizationProvider

Everything appears translated in the local language except the days of the week in RadScheduler's header columns which are still in English:
Monday, Tuesday, Wednesday...
Is it possible to programmatically change the text of these header columns?

Best regards,
Alain

Scheduler and Reminder

answered on 10 Aug 2011

1 answer

298 views

Default Backcolor for Button Fill Element

Hello,

I am using a lot of Rad buttons in my application. I change the back color of the buttons based on some conditions the following code:

.ButtonFillElement.BackColor = Color.LightGreen;
.ButtonFillElement.GradientStyle = Telerik.WinControls.GradientStyles.Solid;
.ForeColor = Color.Black;

My questions is how do i set these properties back to the default ones within code. I want the buttons to get the default theme of the application when the condition turns false.

Thanks,
Pawan

General Discussions

answered on 10 Aug 2011

3 answers

165 views

Problem with ColumnGroupsViewDefinition - row height.

Hello,
I implemented ColumnGroupsViewDefinition for my Grid (the same code in Telerik Q3 Demos - Grid View), but it's change RowHeight. I try to change f.e:

this.CollectionGrid.TableElement.RowHeight = 30;



this.CollectionGrid.TableElement.GroupHeaderHeight = 30;

             

this.CollectionGrid.TableElement.FilterRowHeight = 30;

                

this.CollectionGrid.TableElement.TableHeaderHeight = 30;

but it's not work. What is more i have problem with correctly filling header rows (screenshot- I deleted data).
Thanks for help.

GridView

answered on 10 Aug 2011

1 answer

144 views

RadComboBox does not show focus ques

I have several RadComboBoxes (Q2 2010). I have AllowShowFocusQues set to True, TabStop set to true & DropDownStyle set to DropDownList.

When I tab onto the field there is no change in the appearance of the combo box. I know I have focus because I can use the arrow keys to move through the list. I would have thought may do something like the DropDownList or button with a dotted box just inside the control's border.

The list does include a blank item that is shown initially. However even if I select a different item from the list, tab off and then back to the combo box there is no indication that the combo has focus.

Thanks!

Howard

ComboBox and ListBox (obsolete as of Q2 2010)

answered on 09 Aug 2011

1 answer

123 views

GridViewComboBoxColumn linked to an entity (entity framework 3.5)

Hi

I have created a GridViewComboBoxColumn using entity framework 4.0. I have attached the code that I have used that works fine.
I would like to know how I would get the same result when using entity framework 3.5. I have attached the entity that the grid is bound to.

Thanks
Celeste

GridView

answered on 09 Aug 2011

1 answer

218 views

How to change 'Visibility' programmatically

Hi,
You have introduced a new property called 'Visibility.' How do you change that value programmatically? I would like to change it: lets say from initially 'Hidden' to 'Visible' in code.

Thank you,
Karl

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 09 Aug 2011

2 answers

261 views

Add dynamic control in dynamic form

Hi,
I am creating a dynamic form and after adding dynamic controls but i receive this message (" The best overloaded method match for 'System.Windows.Forms.Control.ControlCollection.Add(System.Windows.Forms.Control)' has some invalid arguments ")
and (" cannot convert from 'Telerik.WinControls.UI.RadGroupBox' to 'System.Windows.Forms.Control' ")

Here is the code:

Form frm = new Form();

RadGroupBox groupb = new RadGroupBox();

frm.Controls.Add(groupb);

Can you help me?

Form

answered on 09 Aug 2011