Questions on UI for WinForms Forum

4 answers

335 views

Hi,

I'm currently populating the property grid using a RadPropertyStore. One of my object's properties is a nullable Int32 field (Int32?) and I need to allow the user to empty out the PropertyGridSpinEditor cell. Unfortunately, when the data cell is cleared out, it automatically gets set to a value of 0 instead of empty/null.

How can I allow the user to clear out the data and have null be considered a valid value?

Thanks,

Joe

PS. See attached screenshot for current behavior.

PropertyGrid

answered on 08 Oct 2015

1 answer

560 views

Expandable Multiline TextBox

Is there a way to expand... grab a corner and pull to "show more" when the control is full?

Tried many searches for this... no luck.

TextBox

answered on 08 Oct 2015

1 answer

286 views

Column and row label formatting/Sizing

1. I am using Linq as my data source

2. I am programmatically creating the pivot data (PropertyGroupDescription)

3. I need a way to tell the differences between the ROW LABELS and the COLUMN LABELS in the GroupElementFormatting event so I can resize my ROW LABEL so I can see all the text and Right Align the test in my COLUMN LABELS. From what I can tell, they are all the same OBJECT TYPE and I can't rely on looking at the TEXT/DESCRIPTION as this data is dynamic.

TIA

Mark

PivotGrid and PivotFieldList

answered on 08 Oct 2015

1 answer

82 views

[Solved] Menu "All Controls"

Hi people.

can you help me?

What Component use for create this menu "All Controls"?

thank you very much.

General Discussions

answered on 08 Oct 2015

3 answers

179 views

Disable Print Preview

Is there a way to disable the print preview when printing a document.

Thanks Troy

RichTextEditor

answered on 08 Oct 2015

6 answers

296 views

[Solved] panorama tiles

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

Panorama

answered on 08 Oct 2015

2 answers

117 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

161 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

264 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: