Questions on UI for WinForms Forum

1 answer

120 views

Collapse symbol

I am using following code

radgridview1.GridElement.BeginUpdate()

For Each row As GridViewDataRowInfo In radgridview1.Rows

row.IsExpanded =

True

radgridview1.GridElement.EndUpdate()

The hierachical rows and child rows are showing fine. However symbol for collapsing is missing. I am using Vista theme.

In another form using same properties and theme ^ and upside down ^ shows up for expanding and collapsing. What could be the reason?

Regards ... DP

GridView

answered on 22 Aug 2008

1 answer

352 views

[Solved] Change tab color and restore to original color

As per the instructions given in this thread: http://www.telerik.com/community/forums/thread/b311D-mkmhd.aspx I was able to successfully change the backcolor of a tab programmatically. When I try to reset the tab color back to its original color, it works fine, except that the color stays changed until I hover over the tab, and then it fully returns to normal.

For example, I have a tab strip with the default blue colored tabs. I click a button to change one of the tabs to yellow, and it works. I click another button to change the color back to the original blue color, but the tab still remains yellow. When I hover my mouse over the yellow tab, it changes to the hover color, and when I hover away from the tab, it returns to its original blue color.

Here is a sample of my code used to make the tab turn yellow:

    
                        Dim oFillSelector As New ClassSelector("TabFill") 
        
                        Dim oTabFill As FillPrimitive = TryCast(oFillSelector.GetSelectedElements(Me.tsTabs.SelectedTab)(0), FillPrimitive) 
        
                        If oTabFill.BackColor <> Color.Yellow Then 
        
                            oTabFill.BackColor = Color.Yellow 
        
                            oTabFill.BackColor2 = Color.Yellow 
        
                            oTabFill.BackColor3 = Color.Yellow 
        
                            oTabFill.BackColor4 = Color.Yellow 
        
                        End If

Here is the code I use to return all tabs to their default color:

    
            For i as int32 = 0 to Me.tsTabs.Items.Count -1 
        
                    Dim oFillSelector As New ClassSelector("TabFill") 
        
                    Dim oTabFill As FillPrimitive = TryCast(oFillSelector.GetSelectedElements(Me.tsTabs.Items(i))(0), FillPrimitive) 
        
                    oTabFill.ResetValue(FillPrimitive.BackColorProperty) 
        
                    oTabFill.ResetValue(FillPrimitive.BackColor2Property) 
        
                    oTabFill.ResetValue(FillPrimitive.BackColor3Property) 
        
                    oTabFill.ResetValue(FillPrimitive.BackColor4Property) 
        
            Next

Please let me know what I am doing wrong, as it is quite annoying to have to hover over all the tabs everytime I want to see which ones are really supposed to have a different backcolor.

Tabstrip (obsolete as of Q2 2010)

answered on 22 Aug 2008

3 answers

191 views

performance questions

I am noticing some "artifacts" when maximizing or resizing a window using docked panels. There are blocks of dead space that appear temporarily, and one control we are using dances around quite a bit before settling down (it's being redrawn frequently and it doesn't draw quickly).

What can be done about these artifacts? We're using the Q2 2008 codebase.

Dock

answered on 21 Aug 2008

9 answers

119 views

Problem with Q2 2008 in project originally made on Q1 2008

I have project with RadControls for WinForms used within (docking manager, text boxes, tabstrips, labels, buttons) which was made using Q1 2008 controls. Now after upgrading to Q2 2008 I get following message when entering design view. I have to click through the same dialog 5 times (or so) and then designer shows up. What could be the problem? Any clues?

http://mf.ederon.net/telerik/telerik_glypths.jpg

Daniel

General Discussions

answered on 21 Aug 2008

3 answers

148 views

Tab key bug

Hi,

I have a grid that is displayed in RightToLeft Mode
and when i press the Tab key on a cell it passes to the next cell
but when it gets to the last cell on the row it gows up
instead of down.
(without the RightToLeft mode it works fine)

Thanks in advance.

GridView

answered on 21 Aug 2008

2 answers

298 views

Filtering multicolumn combo box?

any known workaround / hacks to do filtering in the multicolumn combo box, at this point?

I sort of have a working version and wanted to see if anyone else had an implementation.

basically, I pay attention to the cbo.MultiColumnComboBoxElement.TextChanged event. When you type into the box, i grab the text and manually find the items in my collection that fit the text entered, then re-set the combo box data source to the filtered list.

this "works", but has some strange side effects and UI usability problems. for example, i have to manually click the drop down arrow, or use the cbo.MultiColumnComboBoxElement.Editor.ShowPopup(); call, to get the grid to pop up. when i do this with either method, though, the pop up has strange behaviour of auto resizing when i don't want it to (when zero items in list it shrinks, then changing filter and it won't resize larger, so i have to clear the filter, close the pop up, and open it again).

anyone else have a working implementation of filtering for the multi column combo box?

MultiColumn ComboBox

answered on 21 Aug 2008

1 answer

126 views

Changing value of inserted row

Hi :o)

How do I change the value of a column/field that has been inserted using the automatic add new row functionality of the grid?

Many thanks

Tim

GridView

answered on 21 Aug 2008

5 answers

209 views

Scrolling behavior when adding a new row

Hi,

i've got a problem with the default vertical scrolling behavoir when
adding a new row.

My grid shows 4 rows initially, the new row gets added
by bindingsource.addnew().
After the new blank row is created in the grid the vertical scrollbar appears and
the first row gets out of the current view (automatic scroll down).

The height of the grid has enough space for more rows.
The VerticalScrollState is set to AlwayHide.

I don't want that automatic scrolling, what can i do ?

Regards
Kim

GridView

answered on 20 Aug 2008

1 answer

152 views

Setting Font for the chart

Is there any way to set the font for the whole chart at once?

Specifically, I'm trying to set the FontFamily and leave the sizes as they are in the designer.

With other controls, I can do this using code like this:
control.Font = new Font("Arial", control.Font.Size);

I'd like to be able to do something similar with the chart.

But the problem is that there are a LOT of places where the font can be changed for specific properties. There's no easy way to find all these places.

TIA

Chart (obsolete as of Q1 2013)

answered on 20 Aug 2008

2 answers

224 views

Adding controls dynamically to RadTabstrip

hi
i am new user of the nice RadControls for win forms q1 2008.
but i have a problem:
"
i tried to make a button that add new tabs, and each new tab will contains a web browser control."
in other terms i a making a tabbed webbrowser and i need those nice tabs .
thanks .

i am using VB.NET (2008)

©samy.

Tabstrip (obsolete as of Q2 2010)

answered on 19 Aug 2008