Questions on UI for WPF Forum

3 answers

189 views

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

97 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

263 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

215 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

199 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

137 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

4 answers

51 views

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

276 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

6 answers

153 views

Exporting Hierarchical RadGridView showing error in Excell Sheet

Hi,

I am using Telerik RadGridView which is implemented in a hierarchical manner in WPF Windows application.

While exporting to Excell I am getting the following error message in the Excell sheet, instead of displaying data.

[QCVG: Key=Private Capital; ItemCount=3; HasSubgroups=False; ParentGroup=[QCVG: Key=Alternatives; ItemCount=6; HasSubgroups=True; ParentGroup=[QCVG: Key=Root; ItemCount=6; HasSubgroups=True; ParentGroup=null];];];

Is there any solution to this issue.

Any quick sample code will be highly usefull to resolve this issue.

Thanks & Regards,
Hirak

GridView

answered on 21 Apr 2011

5 answers

87 views

Custom filter. Tabbing issue.

Hi,
I faced with strange behavior of DataFilter.

When I open filter (by using RadGridView) and click on the first element and trying to use tab (to switch from one element to another one) the focus is going to be set to the parent element (RadGridView) instead of element that placed on my filter.

How to solve the problem with propagation of focus to parent element ?

thank you,
Julian

DataFilter

answered on 21 Apr 2011