Questions on UI for WinForms Forum

9 answers

765 views

TreeView Node Does Not Remain Highlighted

We have a scenario where, a user will select a Treeview node in which we perform logic within theSelectedNodeChanging event. Using e.Node we are able to validate that the node being selected is the correct node. However after performing logic in using the SelectedNodeChanging event, the newly selected node does not show as highlighted in the treeview.

We have validated that the clicked node is in fact the selected node in the treeview, however it simply does not show it as selected by being highlighted. The code we are using, within the SelectedNodeChanging event includes a user confirmation via a RadMessageBox. It seems that the coloured highlighting of the selected node disappears when the message box is called; almost as if it is not highlighted because it is loosing focus. Once the messagebox is closed, we need the selected node to remain highlighted.

What is also interesting is that the selected node, while not highlighted, does not change style when hovering over it with the mouse. All other nodes change style on hover, but not the selected node - it remains plain.

Are we missing something? Is there something else that we have initialize or call to show the node (e.node) highlighted?

Treeview

answered on 09 Nov 2010

7 answers

238 views

Highlight a RadSplitButton

Dear forum,
I would like to know if it is possible to highlight a RadSplitButton and fix the highlighting also when I move the mouse out from the button.
I try to explain better: now the RadSplitButton becomes highlight only when I move over it, I would like to fix the highlight clickink on it,
like a ToggleButton, to permit me to understand which one of the RadSplitButtons of my radribbonbar is actived in this moment.
It should be the same situation of a group of ToggleButton in a group.

thank you

Buttons, RadioButton, CheckBox, etc

answered on 09 Nov 2010

5 answers

750 views

System.NullReferenceException

Hi, I have the latest Telerik controls, I am using it for some time, currently I changed the method content that returns List<MyDataObject>, I started receiving exceptions from the Grid after data binding.

I am receiving System.NullReferenceException from the Grid

What does this mean ? what should I check for ?

[System.NullReferenceException] = {"Object reference not set to an instance of an object."}

Source: Telerik.WinControls.GridView

Stack Trace:

at Telerik.WinControls.UI.GridVisualElement.GetElementAtPoint[T](ComponentElementTree componentTree, Point point)

at Telerik.WinControls.UI.GridRowBehavior.GetRowAtPoint(Point point)

at Telerik.WinControls.UI.GridRowBehavior.SelectPositionOnMouseDownLeft(MouseEventArgs e, GridRowElement rowElement, GridCellElement cellElement)

at Telerik.WinControls.UI.GridRowBehavior.OnMouseDownLeft(MouseEventArgs e)

at Telerik.WinControls.UI.GridRowBehavior.OnMouseDown(MouseEventArgs e)

at Telerik.WinControls.UI.BaseGridBehavior.OnMouseDown(MouseEventArgs e)

at Telerik.WinControls.UI.RadGridView.OnMouseDown(MouseEventArgs e)

at System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)

at System.Windows.Forms.Control.WndProc(Message& m)

at Telerik.WinControls.RadControl.WndProc(Message& m)

at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)

at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

GridView

answered on 09 Nov 2010

6 answers

216 views

Gray Backcolor in Inherited Textbox

hello,

i make a user control and inherit it from RadTextBox , the problem is backcolor of my user control is gray instead of white.
i tried to change it via various methods ,but nothing worked till.

how can i solve this problem ?

TextBox

answered on 09 Nov 2010

3 answers

99 views

Month View uses another cultureinfo

hello,

i am using 2010 Q2 controls , in the scheduler i changed the default Cultureinfo to another culture , but the Month view is using the old (system default) culture.

how can i solve this issue ?

Scheduler and Reminder

answered on 09 Nov 2010

4 answers

157 views

Coloring rows in different colors

Hello everybody!
I have an issue to paint rows in different colors based on the DataBoundItem.Date Property.
Should be like this:

Date | Name
01.01.2000 Order1 blue
01.01.2000 Order2 blue
02.01.2000 Order3 green
05.01.2000 Order4 blue

all orders that are in one day should be in one color (as even color), then the next day's orders (as not even color),

how to do this ? =)

GridView

answered on 09 Nov 2010

3 answers

74 views

No ImageAlignment Property for column's header

I tried to put nice graphics together with the column's header but the result does not impressed me at all. The image is too far away from the text that it looks very odd! See attached picture!

RadButton has a ImageAlignment property that I could use to move the image closer to the text. There is not such a property here that I could see.

Phi

GridView

answered on 09 Nov 2010

1 answer

555 views

Auto Expand Groups

Hey all,

is it possible to automatically expand all of the groups once a grouping is used on the RadGridView? I have tried, but to no avail! Any help would be greatly appreciated!

GridView

answered on 09 Nov 2010

2 answers

375 views

CellValidating even fired twice

Just want to report a bug that the CellValidating even is fired twice whenever I clicked a row in the grid.

Also, this event also fired whenever I clicked on any row, not just when in edit mode. Don't know if this is by-design or what!

Another thing, I found some events used e.Value versus e.NewValue (while e.OldValue is OK). You guys may want to get them to be named the same!

Phi

GridView

answered on 09 Nov 2010

6 answers

201 views

Title of PageView (in Explorerbar Mode)

Hello,

I would like to interrupt an auto behavior of the RadPageView in ExplorerBar mode.
Actually, the title is set as soon as on TabPage is selected, and take this tabpage text.

Is there any way to set this text myself?

Thanks for help

Best regards

PageView

answered on 09 Nov 2010