Questions on UI for WPF Forum

3 answers

172 views

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

182 views

[Solved] 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

245 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

120 views

[Solved] 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

298 views

[Solved] 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

280 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

250 views

[Solved] 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

165 views

[Solved] 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

4 answers

72 views

[Solved] Codebehind datacolumn generation and manipulation problem

Hi!

Looks like a problem with new version of Telerik library. Following code:

GridViewColumn[] columns = new[]
            {
                new GridViewDataColumn()
                    {Header = "Test header"}
            };
 
    private void Button_Click(object sender, RoutedEventArgs e)
    {
        Grid.Columns.Clear();
        Grid.Columns.AddRange(columns);
    }

results in broken layout of column header after second button click. I think I can come up with workarounds but this seems to be a bug anyway. I have a repro solution ready if needed.

WBR,
Nikolay Ryabkov.

GridView

answered on 21 Apr 2011

11 answers

324 views

Multiple-Column Sorting with CollectionViewSource and DataView

The Q3 version does not appear to support mulitple column sorting when bound to a CollectionViewSource.View or DataView. When attempting to sort one column in ascending order and a second column in descending order, it does not correctly apply the second sort. This functionality had worked with the Q1 version. Has this functionality been purposefully removed?

GridView

answered on 21 Apr 2011