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1 answer
157 views
Hi,

I have been trying to implement drag and drop from a treeview to a gridview using DragDropManager. It looks like I got it to working, with a drag cue created from a datatemplate defined in treeview resources in DragInitialize event fired by the treeview. What I would like to do, is to change the dragcue when the mouse enters inside the borders of the gridview, and switch it back when it leaves the gridview borders.

I went through the BugTracker demo source, and this concept has been done by creating a template, and controlling the image path and other textblocks with a binding property. Is this the only way to accomplish this? Is it possible to define two different datatemplates and select the appropriate one in the DragEnter and DragLeave event of the gridview?

Can someone please clarify? A small sample code would help a lot.

Thanks.
Dimitrina
Telerik team
 answered on 20 Aug 2012
1 answer
270 views
Hi,

In your MVVM binding example from the Demos you create tabs using data templates. If you add desrtructor for TabViewModel, it will not fire until application is closed, even if you call GC.Collect(). Why is this happening and what is holding the resources from being freed.

If you fo the same for the regular view, and close it, destructor for ViewModel will fire normally.

The example I am referring is called DataBinding, under TabControl.

Regards,
Goran
Hristo
Telerik team
 answered on 17 Aug 2012
5 answers
193 views
Hi,
From your demo project I change the background but...

<pivot:QuickStyle.HeaderRow>
                            <pivot:ElementProperties Background="#FF683C20" BorderThickness="0 2" BorderBrush="#FF472816" />
                        </pivot:QuickStyle.HeaderRow>

This is dark background. Not see how to add something like a Foreground="White"  to have a white color on the text over dark background?

Same for Columns, Totals, Subs... etc...

Regards,
Saykor
Rosen Vladimirov
Telerik team
 answered on 17 Aug 2012
2 answers
223 views
I have noticed a severe performance issue when adding a GridViewImageColumn to my GridView. Scrolling gets very sluggish. I'm using
DataMemberBinding="{Binding ImageUrl}"
and the actual value is ../images/warning.ico. The same happens with other formats like png as well. Any suggestions on improving the performance?

Geoffrey
Top achievements
Rank 1
 answered on 17 Aug 2012
1 answer
170 views
Is there a simple way to increase the width on a metro themed scrollbar?
Yoan
Telerik team
 answered on 17 Aug 2012
1 answer
145 views

I have written this simple lines of code



But i keep getting the same error, I recently installed RadControls for WPF Q2 2012 SP1, I've added the DLL's needed.
Not sure if I'm retarded, but I can't find the solution atm.



Error





Regards
Joachim
Todor
Telerik team
 answered on 17 Aug 2012
5 answers
180 views

I am using the RadGridView to display system events. As new events are observed they are added to the grid's data context. After the data context grows to a particular number of items the oldest items begin to be removed as new items are added. This creates a constantly scrolling view of the items after it reaches maximum size. The number of events occurring in the system make this view unreadable. To correct this problem the visible rows of the grid should be fixed if the scroll bar is not at position zero. Any suggestion on how I could accomplish this would be appreciated.

Thanks,

Matt

Vlad
Telerik team
 answered on 17 Aug 2012
0 answers
121 views
Hi,

I have a simple RadGridView with some setting but this grid is not editable. 

This gridview is filled thanks to a dataset product from a sql database.....

Through code behind I have the folloginw code:

        Dim currentDataRow As DataRow = Me.MyDataGrid.SelectedItem
        If currentDataRow IsNot Nothing Then
            currentDataRow.Item("STATUS") = status
        End If

This code works fine....so far, so good....but what is the right event in RadGridView to capture the time when the value of the cell is modified?

Thanks
Romell
Top achievements
Rank 1
 asked on 16 Aug 2012
0 answers
344 views
Is there a way to programmically remove the focus on a radgridview or one of the rows.


I have tried using the Focusable property which functionally works but it leaves the row still highlighted.

I have a couple of grids in panels where the visibiliy is toggled. They have keyboard commands and when I go to a new panel its possible to active commands on the invisible grid.

Thanks in advance

Arthur
Arthur
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Rank 1
 asked on 16 Aug 2012
2 answers
195 views
Currently the "Members DropDown" is a list of available members, which can serve as a filter criteria.

In our application, we provide the users, hundreds of members that they can filter. So, it would be nice to categorize the dropdown and show members under the categories, or even better, use a different UI control instead of a dropdown.

How flexible is this feature supported in your API? 
Shankar
Top achievements
Rank 1
 answered on 16 Aug 2012
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