Questions on UI for WPF Forum

2 answers

447 views

I need to refresh schedule view on button click or any event. when i bind data with it first time it works perfectly second time when i changed the data and rebind it, its not refresh the scheduleview

ScheduleView

answered on 12 Apr 2011

0 answers

76 views

How to export to Excell

Hi,

I am using a stack panel with a TextBlock & ItemsControl.

How do I export the data to Excel.

Any quick sample will be highly appreciated.

Thanks & Regards,
Hirak

General Discussions

asked on 12 Apr 2011

0 answers

79 views

GridView ToHtml OutOfMemory

Hi,

we are using GridView.ToHtml method for Export grid's records.

Depending on records count, we get a System.OutOfMemoryException in this method. (>10000 records throw exception)

We are using 'RadControls for WPF Q2 2009' version.

Are there anyway to improve performance or to avoid this exception?

Best regards!

GridView

asked on 12 Apr 2011

4 answers

466 views

AssociatedObject object is always null for gridViewColumn

Hi there, I am trying to create a behavior I can use to set the width of certain columns to 0 if certain things happen but when I try to access the AssociatedObject it is always null. I think the code will better explain this...

public static readonly DependencyProperty VisibilityProperty =

DependencyProperty.Register("Visibility", typeof(bool), typeof(HideRadGridViewColumnBehavior),

new PropertyMetadata(OnVisibilityPropertyChanged));

private static void OnVisibilityPropertyChanged(DependencyObject target, DependencyPropertyChangedEventArgs args)

{

if (((HideRadGridViewColumnBehavior)target).AssociatedObject == null)

{

MessageBox.Show("AssociatedObject is null");

}

else

{

var col = ((HideRadGridViewColumnBehavior)target).AssociatedObject as GridViewDataColumn;

col.Width = 0;

col.Header = "";

col.IsResizable = false;

}

It's fairly obvious what I want to do there however no matter what the AssociatedObject is null, Here is the XAML I am using - hopefully someone can point me in the right direction on this.

<telerik:GridViewDataColumn DataMemberBinding="{Binding ModelId}" Header="ID">

<i:Interaction.Behaviors>

<b:HideRadGridViewColumnBehavior Visibility="{Binding Path=DevMode}"/>

</i:Interaction.Behaviors>

</telerik:GridViewDataColumn>

Thanks alot!!!

GridView

answered on 12 Apr 2011

3 answers

300 views

[Solved] How to create select/deselect all checkbox?

Hello,

I'm trying to add an item to the top of my treeview with a value of "Select/Deselect All" that will check all items. I have a treeview named "tvDirectory"

I added it like this:

tvDirectory.Items.Add("Select/Deselect All");

Then I tried to implement the functionality in the Checked eventhandler like this:

RadTreeViewItem item = (RadTreeViewItem)((RadTreeView)sender).SelectedContainer;

if (item != null)

{

if (item.CheckState == ToggleState.On)

{

foreach (RadTreeViewItem tvItem in tvDirectory.Items)

{

tvItem.CheckState = ToggleState.On;

}

else

{

foreach (RadTreeViewItem tvItem in tvDirectory.Items)

{

tvItem.CheckState = ToggleState.Off;

}

But I get an "object reference not set to instance of an object for "item". Help please, thanks.

TreeView

answered on 12 Apr 2011

1 answer

105 views

[Solved] ScheduleView / Drag And Drop Example Drop Issue

Hi there,

I followed the ScheduleView / Drag And Drop Example but found two issues that I need assistance with.

(i) When an item is dragged from the ScheduleView back to the listbox, and the payload is directly dragged on top of a ListItem, when the drop operation completes the item disappears.
(ii) When an item is dragged to the very bottom of the listbox originating from the ScheduleView or the ListBox, when the drop operation completes the item disappears.

What changes to the OnDropQuery and OnDropInfo are required to get this to work. I'd like for an item to be able to be dragged back from the ScheduleView to the ListBox without disappearing.

I tried.to combine the Drag within a ListBox Example with the ScheduleView Drag Drop Example with no success.

ScheduleView

answered on 12 Apr 2011

0 answers

143 views

RadComboBox Drop Down?

Hello Telerik Team,
I have one clarification about radcombobox..
I have two objects like ID and Name.The values are stored in database.I want to retrieve these details and Display in radcomboBox

Then if i Give ID mean the drop down will open based on ID in ascending Order...(Filtering)
and also if i give Name then the drop down will open based on Name in Ascending order

Is it possible in radcomboBox?
or How to do this?
pls give more ideas..

Thank You...

ComboBox

asked on 12 Apr 2011

1 answer

131 views

Theming non-Telerik Controls

I have a question about Telerik brushes.

I realize that the Telerik themes work for all Telerik WPF controls and 8 non-Telerik control types.

What I want to do is set some colors for other controls including our own custom controls to match the Telerik theme colors.
My question is this:
Is there a list available with the common brushes used in the themes so I can set my control resource dict to use those colors?
For example, previously we used Nukeation themes and I could use their brushes like WindowBackgroundBrush to make our stuff match their theme. To make (for example) a custom control background match the Nukeation theme, I merely needed to set its background to the WindowBackgroundBrush.

I looked at the Telerik Source code but there are billions of brushes defined in hundreds of XAML files so it is difficult to know what are the common brushes used.

General Discussions

answered on 12 Apr 2011

1 answer

72 views

Is WPF4 on framework 4 available?

All the versions for 2011 Q1 are WPF 35 and framework 2. When is 4 going to be available?

General Discussions

answered on 12 Apr 2011

1 answer

77 views

PreservePositionWhenMaximized not work

Hi
Latest Version this Property working fine but

I have a Telerik.Controls.Navigation Version[2010.3.1110.40] in this not Support this Property

Can u give me a alternate way

Regards
S.SenthilNathan

TileView

answered on 12 Apr 2011