Questions on UI for WPF Forum

4 answers

174 views

[Solved] RadTreeView & RadDragAndDropManager

Hi,

I'm using a RadTreeView with IsDragDropEnabled ="True" and need to limit dragging and dropping for certain items. Tried to attach to

                                RadDragAndDropManager.AddDragQueryHandler(...);         
                        RadDragAndDropManager.AddDragInfoHandler(...);         
                        RadDragAndDropManager.AddDropQueryHandler(..);         
                        RadDragAndDropManager.AddDropInfoHandler(...);         
                     

and manipulate with e.QueryResult but it does not take any effect. All the items are allowed to be dragged and dropped anywhere inside the treeview.

I followed the sample and it does work for the GridView but doesn't on a TreeView.

Thanks,

Ruben.

TreeView

answered on 08 Dec 2009

2 answers

174 views

Gridview and Multi Column Combo

Hi..
1. Do have any examples of Multi Column Combo box in a GridView?
2. How do 'select' or 'set focus' to the combo box so it is visible in a row?
3. How can I pull multiple values from the combo box and populate other columns in the selected Row with the values?

thanks in advance

GridView

answered on 08 Dec 2009

1 answer

113 views

Differences between Q2 and Q3 for selecting rows.

Hi

I have noticed that there is a difference between Q2 and Q3 on selecting a row;

In the Q2 release, the row becomes selected

when the user clicks the leftmost bar which does not have any data
when the user clicks on one of the cells in that row

In the Q3 release, the row only becomes selected when the user clicks on one of the cells in that row.

This means that the user can no longer drag data from the leftmost column which is probably the most intuitive way to do it. Is there any way to recreate this behavior in Q3?

GridView

answered on 08 Dec 2009

1 answer

99 views

Custon Aggregate function

I have a column of a datagrid called "product" that can include only two values: "new" or "old".

How can I implement a function that count only the rows where product is "new"?

Please help me!

Thanks

GridView

answered on 08 Dec 2009

1 answer

130 views

No PropertyChanged event for initially expanded item?

Hello,

we are using a RadTreeView with Columns and we see a very strange behaviour.
Some of the items of the tree view are initially expande by setting IsExpanded to true in their Constructor (we use a TreeViewModel). When a values of the properties binded to the treeView changes, it works fine for all items, except for the ones that were initially expanded. No data update is performed. It seems as if the bindings were lost.
If we remove the IsExpanded in the constructor, the binding seems to be ok, but we need to expand some of the items initially.

What can we do?

Best regards,
Jerma

TreeView

answered on 08 Dec 2009

1 answer

120 views

Prevent auto expand of treenode during drag/drop

Hi,

Our application has a Telerik Tree and Grid. We allow drag and drop between the Tree and Grid and within the tree. When we drag and drop into the tree and node over which it moves gets auto expanded. How can we prevent this?

We saw a solution for a similar problem on the ASP .NET forum.
http://www.telerik.com/community/forums/aspnet-ajax/treeview/prevent-auto-expand-of-nodes-during-drag-and-drop.aspx

Is there one for WPF?

Thanks,
-Sunandini

TreeView

answered on 08 Dec 2009

3 answers

169 views

[Solved] Aligning Group Aggregates

The documentation shipped with the RadControls for WPF Q3 2009, shows an image depicting the Group Aggregates right aligned.

ms-help://telerik.windows.controls/telerik.windows.controls.gridview/gridview-grouping-aggregates.html

No where in the documentation can I find how this is accomplised.
Could this be clarified? If this can be done, how?

GridView

answered on 07 Dec 2009

2 answers

161 views

Hide negative values line

How do I hide the negative values line (the y-axis zero) introduced with the Q3.2009 version?

Thanks
Greg

Chart

answered on 07 Dec 2009

1 answer

108 views

Styling Column Filter Items

Hello,

I'm working on styling the RadGridView items to go with our color theme. I'm having trouble finding the right item to style the popup for the filter. I'm looking to change the popup corner radius, background, foreground and scroll bars. I tried using the FilterControl template. it worked but the combobox's and DistinctValuesList aren't populated with anything. Not sure what I'm doing wrong.

Thanks much
~Boots

GridView

answered on 07 Dec 2009

1 answer

270 views

NullValue not working

Hello,

I am using Telerik RadControlls for WPF Q3 2009.

I have RadNumericUpDown defined in xaml as follows:

<Telerik:RadNumericUpDown Height="25" Width="100" CustomUnit="kg" Minimum="0" Maximum="250" ValueFormat="Numeric" NullValue="N/A" IsInteger="True" Value="{Binding Path=Weight, Mode=TwoWay}"/>

I am binding the value to property on my ViewModel class. The property is of ?float type. It returns float or null. When it returns float number, the NumericUpDown works fine. But when the property returns null, the NumericUpDown displays "0 kg" instead of "N/A". It is impornant for my application to distinguish between 0 and null, but the NumericUpDown seems to fail at this.

Is this bug or am I missing something?

Thanks

Lukas

NumericUpDown

answered on 07 Dec 2009