Questions on UI for WinForms Forum

1 answer

207 views

[Solved] Disable popping up the calendar in a DateTime cell

If I set the Format to "Time" I see no need for the Calendar button to show up in the cell. I basically want a cell that only has time in it. How can I disable showing the calendar button?

Thanks

GridView

answered on 27 Jan 2011

2 answers

162 views

Collapsible pane.

Hello!

Is there any controls in RadControls for WinForms Q3 2010 which have similiar functionality like collapsible pane in examples or expander in WPF?
I need similiar functionality and possibility to add controls like buttons, combobox, etc ?
Is it possible with existing implementation of collapsible pane? I tried but no success.

Thanks in advance.

General Discussions

answered on 27 Jan 2011

2 answers

243 views

[Solved] Check Box on Ribbon

I have a series of check boxes on my rad ribbon bar which I use to quickly filter a grid. I am handling the Click event of the RadCheckBoxElement, this calls a method to Refresh the grid, the problem is that the checked value of the control is not being passed correctly to the toggle state property, e.g. when it's ticked it passes false, when it's unticked it passes true.
I know I am doing something stupid, but can somebody please advise what...

Justin

RibbonBar

answered on 27 Jan 2011

3 answers

375 views

[Solved] Clearing selection on Grid View

Hi All,

I am trying to clear any selection on gridview after populating it and I am using gridview.clearselection() method for that but it is not clearing the selection for the entire row as one of the cell is still seleted with highlighted boundary line. I have set my selection mode to 'FullRowSelect'. Could anyone please get back to me asap?

GridView

answered on 27 Jan 2011

1 answer

138 views

Resources

I've attached a screen dump. Can the telerik RadScheduler be customized as such?

I have positions or vacancies as the vertical heading and horizontal heading as time of the day, which display a 24 hr day.

Scheduler and Reminder

answered on 27 Jan 2011

2 answers

305 views

Memory leak when using GridViewComboBoxColumn

Hello,

I have come across a problem of memory leak when using GridViewComboBoxColumn.

I used the Memory Profiler program to ditect the problem.

I have opened a form with a GridView control, which contains a GridViewComboBoxColumn.

Edited 5 cells of a GridViewComboBoxColumn type and took a snapshot of the memory,

The RadPropertyValue has used 11,500,000 bytes.

Edited 5 cells added of a GridViewComboBoxColumn type and took a snapshot of the memory,

The RadPropertyValue has used 42,300,000 bytes.

The attached files display the result.

After closing the form I took another snapshot which showed that the instances where still indirectly rooted by an EventHandler.

This problem is causing the users to use a large amount of memory.

Dispirit for an answer.

Y. L.

GridView

answered on 27 Jan 2011

2 answers

180 views

[Solved] Access rows of nested grid

Hello

How is it possible to access the a row/cell of a child grid?

E. g. I have a grid with 20 rows and I want to access from the 10th row the 3rd row of the second nested/child grid.

8th Row
- Grid 1 to 3
9th Row
- Grid 1 to 3
10th Row
- Grid 1
- Grid 2
     Row 1
     Row 2
     Row 3
- Grid 3

Thank you in advance.

Ahiram

GridView

answered on 27 Jan 2011

2 answers

187 views

[Solved] Dynamically bestfit columns as user scrolls a grid

I would like to bestfit all the columns dynamically as user scrolls a grid vertically.
I don't know if this is at all possible, since there seems no event that is called in grid when user scrolls it vertically.

I am using Q1 2008 SP1 radgridview.

Thanks
Sunil

GridView

answered on 27 Jan 2011

1 answer

191 views

[Solved] Using MySQL in winforms with telerik controls

Is there a way to create the connection the same way i would a sql connection? click the create new data source then new connection then create one for mysql database? Sorry this is such a broad question im just new to connecting to MySQL from c# winforms.

Thanks for help!

General Discussions

answered on 26 Jan 2011

2 answers

194 views

Validation with business rules in dataset

I've got a simple RadGridView bound to a DataTable (through a BindingSource); standard and easy way to put a gridview on a form dragging it from datasources box.
I've implemented my business rule validation in the datatable, as below:

Private Sub OperazioniDataTable_ColumnChanging(ByVal sender As System.Object, ByVal e As System.Data.DataColumnChangeEventArgs) Handles Me.ColumnChanging

Debug.Print("ColumnChanging: column=" & e.Column.ColumnName)

If (e.Column.ColumnName = Me.impovalColumn.ColumnName) Then

If CType(e.ProposedValue, Decimal) = 0 Then

e.Row.SetColumnError(e.Column, "Inserire un importo diverso da zero")

Else

e.Row.SetColumnError(e.Column, "")

End If

End Sub

When I edit the [impoval] cell and enter 0, moving to another cell/row raises the ColumnChanging event, but no feedback at all on the grid.
Another issue: if I press [Escape] key in the cell, the value is not restored to the old one.
In the standard MS grid I get feedback and restore behaviour.
I would like to know the best practices to enforce data validation (on single cells and on row, moving away from a cell/row and/or trying to close a form, etc.), possibly avoiding to put rules in the gridview events, in order to keep all the business rules validation code in the data transfer objects.
Please don't suggest to create separate business objects, as I want to avoid this coding overhead.
TIA
Ubaldo

GridView

answered on 26 Jan 2011