Questions on UI for WPF Forum

5 answers

133 views

Hi Guys,

reffering to your WPF-Demo "Tree to Grid Drag": How can I prevent
a Drag-Operation from the GridView by dragging the Header instead of
the item?

The behavior makes no sense. In your corresponding Silverlight-Example
you can´t drag the Header.

Bye, Michael

DragAndDrop

answered on 22 Apr 2011

1 answer

101 views

Animations after change the ContentTemplate doesn't work

Hi there,

I'm having a problems with the transitions in this particular scenario:
I want to change in code behind the Content of my RadTransitioncontrol, as well as the ContentTemplate and the Transition.
So i wrote the following code:

//Switch to TILE mode

if (layoutMode.Equals(SlideshowLayoutMode.Tile))

{

this.RadTransitionControl_Root.Transition = this.switchModeTransition;

this.RadTransitionControl_Root.ContentTemplate = (DataTemplate)this.Resources["ImageTemplateTile"];

Binding tileBinding = new Binding("AllImages");

this.RadTransitionControl_Root.SetBinding(RadTransitionControl.ContentProperty, tileBinding);

}

//Switch to SEQUENCE mode

else

{

this.RadTransitionControl_Root.ContentTemplate = (DataTemplate)this.Resources["ImageTemplateSequence"];

Binding sequenceBinding = new Binding("ImageSrc");

this.RadTransitionControl_Root.SetBinding(RadTransitionControl.ContentProperty, sequenceBinding);

this.RadTransitionControl_Root.Transition = this.sequenceTransition;

}

But the transition doesn't work in two cases:
1) The first time i change to TILE mode
2) Every time i change to TILE mode after a NotifyPropertyChanged of the Property "ImageSrc" happend.

Some help would be nice,
Thanks,
Ângelo Moreira.

TransitionControl

answered on 22 Apr 2011

3 answers

150 views

Samples for manual creation

Hi,

I am trying to use the RadDataForm to display non-CLR based information and am having trouble finding examples of either building the form through the code behind or some other way. What we have is an object that has a collection of properties (KeyValuePairs (names, object)) which are created by the end user and displayed in a PropertyGrid through the ICustomTypeDescriptor interface.

Thanks for the help,
Greg

DataForm

answered on 22 Apr 2011

1 answer

133 views

How to change color of indicator of position

Indicator of position is still black, when applying some style for NumericUpDown. That indicator is almost not visible for dark background (See image HERE). Is it possible to change color of indicator according to color of text?

I have got the same problem with DatePicker and DateTimePicker.

NumericUpDown

answered on 22 Apr 2011

3 answers

183 views

DataTrigger Compare Column

I want to Compare 2 columns in a a RadGridView to set the style of the cell. I saw the example where you are comparing to a static value, but is there a way to compare it to another column. Basically I want to see if 2 columns are equal. If not, make the font bold and red.

GridView

answered on 22 Apr 2011

2 answers

95 views

Can I display checkboxes for specific items?

I'm creating a windows explorer interface and I'd like to display checkboxes for files and not directories. If I set isOptionElementsEnabled to true it shows checkboxes next to them all. I tried setting isOptionElementsEnabled to true and then programmatically disabling the checkboxes for directories this way:

DirectoryInfo di = new DirectoryInfo(_currentPath);

DirectoryInfo[] directories = di.GetDirectories();

FileInfo[] files = di.GetFiles();

foreach (DirectoryInfo dInfo in directories)

{

RadTreeViewItem tvDirectoryItem = new RadTreeViewItem() { Header = dInfo.Name, DefaultImageSrc = "folder_icon.gif"};

tvDirectoryItem.ItemsOptionListType = OptionListType.None;

tvDirectory.Items.Add(tvDirectoryItem);

}

foreach (FileInfo fInfo in files)

{

//tvDirectory.IsOptionElementsEnabled = true;

RadTreeViewItem tvFileItem = new RadTreeViewItem() { Header = fInfo.Name };

tvFileItem.ItemsOptionListType = OptionListType.CheckList;

tvDirectory.Items.Add(tvFileItem);

}

but it didn't work. Is there anyway to do this outside of using two separate treeviews on top of each other?

TreeView

answered on 22 Apr 2011

1 answer

261 views

Validation Result not shown

Hello,

I have a RadDatePicker whose SelectedValue is bound to a property of an object which implements IDataErrorInfo:

<telerik:RadDatePicker

telerik:StyleManager.Theme="Office_Black"

DataContext="{Binding ReceiptDateField}"

SelectedValue="{Binding SelectedDate, Mode=TwoWay, ValidatesOnDataErrors=True}"

DateTimeWatermarkContent="" DisplayFormat="Short"

Margin="296,196,0,0" HorizontalAlignment="Left" VerticalAlignment="Top" Height="24" Width="84"/>

If validation failes the RadDatePicker only has a red border but no red triangle in the upper right corner. Therefore it's not possible to see the error info.
Could you please fix this bug.

Greetings

Heiko

DatePicker

answered on 22 Apr 2011

5 answers

207 views

Cannot find type 'Telerik.Windows.Controls.RadContextMenu'

Can anyone help with this error?

Cannot find type 'Telerik.Windows.Controls.RadContextMenu'

I get this error when attempting to load the form containing Telerik controls. It is looking for the RadDropDownButton.cs file in the InitializeComponent().

Is this an installation issue or a licensing issue? I'm currently evaluating the Telerik controls.

G

General Discussions

answered on 22 Apr 2011

2 answers

191 views

Insert text and alignment

I want to insert some text, like in a usual letter: the date and "Dear John,"...

I tried this:

editor.Insert(DateTime.Now.Date.ToShortDateString());
editor.InsertLineBreak();
editor.Insert("Dear John,");

...and it works fine!

Now I want to have my date at the right and John at the left.
I tried this:

editor.Insert(DateTime.Now.Date.ToShortDateString());
editor.ChangeTextAlignment(RadTextAlignment.Right);
editor.InsertLineBreak();
editor.Insert("Dear John,");
editor.ChangeTextAlignment(RadTextAlignment.Left);

But it did not work out.
I searched the web for a little bit help about ChangeTextAlignment, but could not find something usefull.
I guess I have to use paragraphs, selection...?

RichTextBox

answered on 21 Apr 2011

4 answers

131 views

implementing "multi-row" rows

Hi,

Does anyone have any advice on how I can implement a GridView so that the columns can be stacked (i.e. a row with 20 columns may have 10 across stacked two high)?

GridView

answered on 21 Apr 2011