Questions on UI for WinForms Forum

2 answers

86 views

GridView with Hierarchial Dataset performance issues

I'm using a RadGrid using a DataSet as the data source, and am setting AutoGenerateHierarchy to true. When trying to expand a row having a large number of child rows (several thousand), the rows are never expanded (I've given up after waiting several minutes.) However, I can copy those child rows into a new DataTable, display them in an new RadGrid control, and it only takes a few seconds for them to be displayed.

Am I exceeding the limits on what can be displayed in a hierarchical gridview?

GridView

answered on 12 Jul 2014

3 answers

1.0K+ views

Hot to catch radcontextmenu item click

Hello,

I can't find the event when i click on a radContextMenu.
I added few items and from my radListControl after right click on radListControl item and choose my radContextMenu item i want to catch my click event.
i only can see that radContextMenu has different events like DropDownClosed, DropDownClosing, DropDownOpened and DropDownOpenning

ContextMenu

answered on 11 Jul 2014

11 answers

705 views

Set RadMenuItem visible

Hi all,i wonder is it possible to set RadMenuItem to visible based on database value..Thanks

Menu

answered on 11 Jul 2014

7 answers

796 views

Numeric only cell

Hi,

I have need to have columns in a gridview numeric only, BUT I have to have the cell blank when the field is null...

I have tried using GridViewDecimalColumn but when it's blank and the CellValueChanged event fires I get FormatException "Input string was not in a correct format."

And, of course, if I use a GridViewTextBoxColumn it allows the user to type in letters...

Can anyome suggest how I can get this to work? Not allow letters, but also allow empty columns?

Thanks,

Matt

Oh, I am using Q3 2010

GridView

answered on 11 Jul 2014

10 answers

480 views

Validate Cell DataGrid

Hello again, this is my doubt, I wish to validate a cell in GridView, this cell type is gridviewtextboxcolumn, this desire can only enter numeric values, ie, to type a letter or symbol I can not accept, do not put gridviewdecimalcolumn one because in this test can type a zero, eg 0101 and the gridviewdecimalcolumn not recognize me the first 0, I have not updated to the new version have taken Q2 because I found some bugs in this version, I'm just waiting for an answer to other post to see if it entered graduate or not, I have found this review validacion can be done with the event but editcontrolshowing datagrid visual studio that brings hope prompt response and thank you in advance for the help I provide.

Note: giving hope to understand, my English is not very good, thanks again.

GridView

answered on 11 Jul 2014

45 answers

6.5K+ views

Resize Column to fit it's contents

Dear All,

I have a gridview control with more than 50 item, how can I display them in the gridview with there full width.
I have tried AutoResizeMode, but it shrink all of them in the viewable area of the grid, I need that all columns
get resized to it's contents regardless of it's visuallity.

Is this possible...

Best regards

GridView

answered on 10 Jul 2014

2 answers

220 views

Installation failure.

Hi..

When installing evaluation copy of Telerik Winforms UI, the installer shows error message like this:

"The installer has insufficient privileges to access this directory: C:\Users\Public\Desktop. The installation cannot continue. Log on as administrator or contact your system administrator."

But, I'm installing as administrator, and the installer is running as administrator privileges.

I'm installing the product on Windows 8.1 64bit Korean version.

For your information, when I access the directory using Windows Explorer, I get the Access Denied error.

The directory does exist but I can't acccess it.

General Discussions

answered on 10 Jul 2014

3 answers

419 views

set RadRibbonBarGroup width in code

Hello,

I am in need of setting the width of a RadRibbonBarGroup in my code and when I assign an integer value to it I get the following error.
Expression is a value and therefore cannot be the target of an assignment.

Here is the code I am using to assign the width value.
Me.RadRibbonBarGroup1.Size.Width = 1000

I am using the latest winforms controls. Q1 2011

Any help would be appreciated greatly.
Thanks in advance.

RibbonBar

answered on 10 Jul 2014

1 answer

131 views

SubTotal Theme Issue

the grid is shown as collapsed, after Expand all, the theme is not correct on DataCell and SubTotal Cell.

reproduce steps:
1. set text is bold on SubTotal Cell , reference Step1.jpg
2. set AutoExpandColumnHeaders = False .AutoExpandRowHeaders = False
3. bind data
4. Expand All, a part of text is bold on datacell, see step2.jpg

what is wrong?

PivotGrid and PivotFieldList