Questions on UI for WinForms Forum

1 answer

246 views

Drag and Drop - Change colour of horizontal drag line

How do you change the colour of the horizontal line (and the icon to the left of that line) that shows where a drop will occur during a drag/drop process in the treeview?

How can the drop options in a treeview be limited, such that for a particular node a drop action will only be allowed to create a sibling of that node or for a different treeview node a drop action will only be able to create a child node?

Treeview

answered on 19 Jan 2009

3 answers

173 views

[Solved] Customize the selection color?

Is it possible to customize the selection color?

I have specified an alternating grid row color using ((GridTableElement) rgv.GridElement).AlternatingRowColor = Color.FromArgb(146, 164, 66);

But the default selection color doesn't look good with it...

UPDATE: Ok, I figure it out - I should subscribe to RowFormattingHandler event

GridView

answered on 19 Jan 2009

1 answer

132 views

Stopping on an item

Hi,
My RadRotator control cycles every 4 seconds but I want to be able to stop it when the mouse is over the control. Is this possible, the control is populated dynamically with user controls.

Thanks,
Derek.

Rotator

answered on 19 Jan 2009

6 answers

149 views

[Solved] submenus are not getting rolled back

hi...
On Mouse out of the menu bar the submenus are not getting rolled back by itself until i click other control. can anyone help this out.
thanks for any help.

thanks,
anil

Menu

answered on 19 Jan 2009

1 answer

231 views

Zooming and Scrolling

Hi guys,

Disclaimer: I'm new to the Telerik forums but I have done my due dilligence and gone through the RadChart tutorials and Help files. Still this seems like something obvious so I appologise if I just haven't seen the setting.

My question is how do I get Scrolling and Zooming working on WinForms RadChart like it does on the ASP.NET AJAX RadChart (http://www.telerik.com/help/aspnet-ajax/featureszoomscroll.html)

From reading the forums it appears that this is not possible specifically the threads:
http://www.telerik.com/community/forums/winforms/chart/zooming-on-y-axis-and-vertical-line.aspx
http://www.telerik.com/community/forums/winforms/chart/dynamically-change-the-step-min-max-value.aspx

If it is not possible then is there some code I can use to get this working? I would like to display a semi transparent region between the user's mouse down and current mouse position. Then after the mouse up event I would like the graph to be zoomed to the selected region.

I tried implementing this but ran into the following problems:

1. OnMouseDown = I couldn't figure out how to translate the current mouse (X,Y) position into the current point on the PlotArea (i.e. you clicked on X Axis = 50, Y Axis = 1000).
2. I could not figure out how to draw a transparent (dynamically resized) rectangle over the top of my graph elements. I looked at using CustomFigures but couldn't figure out how to dynamically change the points.

Any help would be greatly appreciated.

Chart (obsolete as of Q1 2013)

answered on 19 Jan 2009

0 answers

137 views

GridViewTemplate is not defined

Hello, i know this is a simple topic , but i don't know what to do,

I want to declare a variable of type GridViewTemplate, but it says is not declared...

Dim

template As GridViewTemplate = New GridViewTemplate
(it says GridViewTemplate is not declared)

I have a reference to Telerik.WinControls.GridView version 7.1.1.0
Using RadControls for WinForms Q2 2008 SP1
OS WXP SP3

Thanks.

UPDATE: RESOLVED, thanks.

GridView

asked on 18 Jan 2009

1 answer

207 views

RadWaitingBar is very slowly load for the first time

Hi!
I use the form where it is placed RadWaitingBar. When I display it for the first time - it long boots, much longer, than at usage standard ProgressBar. Whether you plan to optimise loading, and if yes when it to wait?

WaitingBar

answered on 16 Jan 2009

2 answers

140 views

Adding and saving multiple rows

Hi,
I have a gridview which uses dynamic SQL. I let the user add as many rows as they want and then when they hit the save button I loop through each row and set the primary key with a new id. However I still get 'Primary Key cannot be null' error even though I have set it. Any ideas?

Thanks

GridView

answered on 16 Jan 2009

3 answers

212 views

Unable to set value to NullDate if NullDate is not between MinDate and MaxDate

I'm using RadControls for WinForms (2008.3 1204).

Assume the following: I have a DateTimePicker. MinDate and NullDate are both set to 1900/01/01. Now I change the MinDate property programmatically to 2009/01/01. In this case, the Value as well as the NullDate property will also be set to 2009/01/01. Furthermore, even if I set the NullDate back to 1900/01/01 after this it is not possible to set the DateTimePicker's value to the NullDate (either by Value=NullDate or by calling SetToNullDate() ) - because the value has to be between MinDate and MaxDate but the NullDate is not.

In my eyes this behaviour is senseless. First, the NullDate property should be completly independent from the MinDate - MaxDate range, to set one of them should not effect NullDate. Second: The DateTimePicker should accept the NullValue date as correct input, even if it is not between MinDate and MaxDate.

I think the condition for accepting a value should be

    
            Value == NullDate || 
        
            Value >= MinDate && Value <= MaxDate

Or am I mistaken?

Calendar, DateTimePicker, TimePicker and Clock

answered on 16 Jan 2009

5 answers

148 views

[Solved] System Beep when tabbing through cells

I've got a grid with two columns, the first is a readonly column and the second column collects user input. When tabbing from the user input column, I get the desired behavior that the cell below the current one is activated and enters edit mode. However there is a system beep (is it because the "next" cell is read-only?)

GridView

answered on 16 Jan 2009