Questions on UI for WinForms Forum

1 answer

126 views

RadMaskedEditBox Name from KeyUp Handler

Hi Support,

I have 10 RadMaskedEditBox that use the same event handler on the KeyUp event. In my handler I need to know the name of the component it was called from.

private void radMaskedEditBox_KeyUp(object sender, KeyEventArgs e)
...

I would like to use something like that ((RadMaskedEditBox)sender).Name but it's not working since the sender is from type RadMaskedEditBoxElement and the Name property is empty.

How can I found the sender component name from the KeyUp event?

Regards,
Nadia

MaskedEditBox

answered on 14 Dec 2012

1 answer

148 views

Binding contents to DataSource

Hi,

I am trying to get a RadRichTextBox to be automatically populated with the contents of a field from an Oracle database. I have set up the properties in the same way that I would for a regular Windows Forms Rich Text Box - by setting the DataBindings Text property to be the BindingSource followed by the field name.

This is working for a regular RichTextBox, however the RadRichTextBox remains empty.

I have attached a screenshot of the Properties window so you can see exactly what I've set.

Any ideas would be appreciated.

Thanks,
Ashley

RichTextBox (obsolete as of Q3 2014 SP1)

answered on 14 Dec 2012

1 answer

80 views

[Solved] Q32012 SP1 changes... how to revert appearance?

Hello, this is a quick post to see if there's a way I can revert back to the pre-SP1 (released yesterday) appearance of the split container control. (This project needs to go out today and I probably shouldn't have updated without leaving myself more time).

According to the release notes:

FIXED: Theme settings are applied only to the first SplitterElement.
FIXED: The image set for the grip of the splitters is not shown for all splitters.

I wasn't using a specific theme (default), and the splitter was a blue color (on my system) without a grip (they are fixed panels). Now it is gray with a grip.

Given more time, I'm sure I could find the properties, but if you could help, I'd appreciate it!!

Thanks,
Dan

SplitContainer

answered on 14 Dec 2012

6 answers

1.0K+ views

DatetimePicker Time Format

I have a datetime picker that has a time format.
I'm wondering if it is possible to:

1. remove the seconds part, so it would only be HH:MM AM/PM?

2. limit the time that can be chosen (e.g. 8 AM to 5 PM)

2. set the interval of increasing and decreasing the Minutes part to 30 instead of 1?

EDIT:

Nevermind Question # 1.

CustomFormat in the properties gets the job done.

Calendar, DateTimePicker, TimePicker and Clock

answered on 14 Dec 2012

4 answers

323 views

Conditional Formatting Based on Other Rows

Hi,

I am using Telerik for Winforms version 2012.3.1017.40. I am using a RadGridView control to display some data.

The following is always true:
- First columns is a date
- All other columns are numeric
- I do not know at design time how many other columns there will be
- The data is at regular intervals (e.g. each row is a 2 minute step)

I am trying to achieve the following functionality:
For each cell value cell:
    Determine value
    Determine Previous Value
    If difference greater than 5:
        backcolour = green
    else if difference less than -5:
        backcolour = red

The 'previous value' cannot necessarily look at the previous row, I do not know what custom sorting the user will have done. Rather the previous value should be taken from the row at the previous point in time (according to the first column(date)).

I could achieve this by querying the underlying datasource (a DataTable) on the CellFormatting event, but can't help wandering if there is an easier way!

Thanks for any assistance.

GridView

answered on 13 Dec 2012

1 answer

125 views

Insert in gridview

We are using RadControls for WinForms Q3 2009 SP1.
In gridview control , we are using GroupByExpressions to club datas together.
When we try to insert a row at custom location , it works weird .Instead of inserting a row at custom location, it puts a row in new group.
See the attachment files for more details.

GridView

answered on 13 Dec 2012

1 answer

172 views

set RowElement.BackColor in RowFormatting event

I am able to change the font but not the backcolor. The line that sets the color is indeed being executed (e.RowElement.BackColor = ....) but the color does not change. What am I failing to do?

void grid_RowFormatting(object sender, Telerik.WinControls.UI.RowFormattingEventArgs e)

{

try

{

if ((grid.MasterTemplate.Columns.Contains("colARRIVE")) && (grid.MasterTemplate.Columns.Contains("colDEPART")))

{

if ((TimeSpan)e.RowElement.RowInfo.Cells["colARRIVE"].Value == (TimeSpan) e.RowElement.RowInfo.Cells["colDEPART"].Value)

{

e.RowElement.Font = new Font(e.RowElement.Font, FontStyle.Strikeout);

}

else

{

e.RowElement.Font = new Font(e.RowElement.Font, FontStyle.Regular);

}

if (e.RowElement.RowInfo.Cells["colSRC"].Value.ToString() == "O")

{

e.RowElement.BackColor = System.Drawing.Color.AliceBlue;

}

catch (Exception ex)

{

}

GridView

answered on 13 Dec 2012

3 answers

135 views

[Solved] Component sizes go wrong when upgrading

Some component sizes (SplitPanel, RadDock) are set to 25x25 when upgrading to 2012.3.1017.40.

General Discussions

answered on 13 Dec 2012

2 answers

208 views

Problem with validation and scrolling in GridView

We have found a serious bug in RadGridView for WinForms, whereby the user can become completely "trapped" in the application when entering an invalid value in a cell, then scrolling the grid.

You can reproduce the behaviour using the Winforms demo application: Demo Application - RadControls for WinForms Q3 2012:

1. Enter an invalid value in a cell, and press enter.
2. Scroll the grid, by clicking in the scroll bar.
3. Now you're stuck, if you scroll back the entered value is gone, but the row is still in error.

You are truly stuck, you can't clear the original error. The only way out I found is to force quit the demo application via the Task Manager.

By the way, don't click the down scroll box (I mean the little triangle at the bottom of the scroll bar) or the app will start scrolling endlessly and eventually crash.

So, how to work around this? One suggestion is to override the CloseEditor :

Public Class MyGridViewEditManager

Inherits GridViewEditManager

Public Sub New(ByVal gridView As RadGridViewElement)

MyBase.New(gridView)

End Sub

Public Overrides Function CloseEditor() As Boolean

Dim closeOnFail As Boolean = Me.CloseEditorWhenValidationFails

Me.CloseEditorWhenValidationFails = True

Dim result As Boolean = MyBase.CloseEditor()

Me.CloseEditorWhenValidationFails = closeOnFail

Return result

End Function

End Class

and then in the New() of the form (where MyGridView is the name of my grid):

Me.MyGridView.GridViewElement.EditorManager = New MyGridViewEditManager(Me.MyGridView.GridViewElement)

This kind of works, but it always closes the editor whenever the user clicks anywhere outside the invalid cell. It avoids the problem of being trapped, but the behaviour is strange - you wouldn't expect the invalid value to disappear when you click outside the cell. The desired behaviour is that the editor is closed if the user scrolls.

One approach I tried without success is to disable scrolling while a grid cell is in edit mode, but no luck.

Does anyone have a good workaround for this tricky problem?

GridView

answered on 12 Dec 2012

1 answer

336 views

RadDropDownList font and RadDateTimePicker alignment

Hi,

1) How can I change the font of the RadDropDownList items on the style builder ?
2) How Can I set the alignment of the RadDateTimePicker selected date to right on the style builder?

Thanks.

Themes and Visual Style Builder

answered on 12 Dec 2012