Questions on UI for WinForms Forum

6 answers

268 views

panorama tiles

how to make panorama tile text have a color background. please see attached file

Panorama

answered on 08 Oct 2015

2 answers

101 views

DropDownList problems in a virtual machine

Hello,

I have in my program a RadDropDownList and RadCheckedDropDownList, which I filled with some items. Local on em system the program runs great. But I copy it to a virtual machine, so the pop-up dropdown list is not working properly. I gave you appended to a .gif, by making the problem described.
I hope they can understand the problem and help me.

Regards,

Susann

DropDownList

answered on 08 Oct 2015

5 answers

136 views

Error in new version Resize column programmatically

Hi;

I found a problem in the resizing of columns when using customized groups. This error did not occur with the previous version (Q2) and has appeared in the current version (Q3).

I attached two files with the same project using the two versions. In the previous version columns are resized correctly and present it does not. As soon as you remove your answer and projects which included two versions of DLLs that ye be easier to prove:

https://dl.dropboxusercontent.com/u/21787064/GridView_Q2.rar

https://dl.dropboxusercontent.com/u/21787064/GridView_Q3.rar

Is it possible I'm doing something wrong?

I regard as a very serious mistake and I can not update my applications to version Q3 until it is solved.

Regards

GridView

answered on 07 Oct 2015

6 answers

212 views

Error when dragging group item set by LoadLayout

We found a very strange error that occurs if someone tries to drag a grouped column and the mouse is on the X to close the group item.

After a column is grouped, you can drag it out of the group area to ungroup, or drag it to a different location to change the group hierarchy. This works fine as long as you don't happen to grab the group by the "X" in the group area. If you place the mouse pointer on the X hold the left mouse button down, moving the mouse at all throws an object reference error. The call stack is shown below.

To make the problem even more bizarre, this doesn't occur if the user manually groups the column. It only seems to occur if we set the grouping in code. We allow users to save their desired display settings. We save them in an XML file and reload them using the LoadLayout and SaveLayout methods. The XML that we are loading with LoadLayout is shown below.

Error call stack:

System.NullReferenceException: Object reference not set to an instance of an object.
at Telerik.WinControls.UI.GridRowBehavior.ExtendSelectionUp(GridTableElement tableElement, Rectangle viewportBounds, Point location)
at Telerik.WinControls.UI.GridRowBehavior.ExtendSelectionOnMouseMove(GridTableElement tableElement, Rectangle viewportBounds, Point location)
at Telerik.WinControls.UI.GridRowBehavior.scrollTimer_Tick(Object sender, EventArgs e)
at System.Windows.Forms.Timer.OnTick(EventArgs e)
at System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message_ m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

LoadLayout XML:

GridView

answered on 07 Oct 2015

1 answer

70 views

Mouse Action vs Program Code Action on MCCB

How can I distinguish a mouse action vs program code action on a multicolumncombobox event like SelectedIndexChanged?

General Discussions

answered on 07 Oct 2015

1 answer

355 views

Up and Down buttons

Has anyone created a good way to have up and down button for a grid.

I have a grid with a list of items that my user would want to order. When they click the Up button the grids current row moves up one row, trading placed with the row above it. Of course the opposite is true with the down button.

I'm trying to use a "sort_order" column with numbers 1 through the childrow count. The buttons' click event edits the current gridrow and the one above it, changing their sort_order field accordingly. However, I'm running into problems when setting the column values. It seems as though I can change the current row, but when I change the previous row the current row's cell value changes back and the previous row doesn't change.

Any ideas .. really, any ideas at all.

Later

Art

GridView

answered on 07 Oct 2015

3 answers

484 views

Offline Documentation

Hi

Could anyone please provide a download link to WinForms and ASP.NET AJAX Offline Documentation (PDF or CHM)?

Documentation

answered on 06 Oct 2015

7 answers

864 views

How change the textbox height?

because my font is special, so I need change It size. like 10.5f. but textbox size change too. and I need change textbox height. so I'm use Visual Style builder, and open a default theme, and change RadTextBox--->RadTextBoxElement--->TextBoxFill, and I try to change it font and padding , and margin. but, padding and margin cannot be change . so ....how can I do ?

TextBox

answered on 06 Oct 2015

2 answers

103 views

Typing Date

Having complains from users when typing in a date for a GridViewDateTimeColumn

On the RadDateTimePicker there is an option called AutoSelectNextPart (see code below)

Can this be used with the gridview, GridViewDateTimeColumn?

Many Thanks

Dim provider As MaskDateTimeProvider = TryCast(Me.dtpContractSigned.DateTimePickerElement.TextBoxElement.Provider, MaskDateTimeProvider)
provider.AutoSelectNextPart = True

GridView

answered on 06 Oct 2015

3 answers

211 views

Treeview Lazy Load performance in 2015Q3

Hi,

The Release Notes of 2015Q3 state that the drawing performance has improved for large trees. In my application I find that the redraw performance is substantially worse in this release than it was in earlier releases. Especially closing/opening nodes that are already loaded into memory (via NodesNeeded / Lazy loading) seem to perform worse than before. What's your experience with Tree Loading performance in 2015Q3?

Regards

Erwin

Treeview

answered on 05 Oct 2015