Questions on UI for WPF Forum

1 answer

104 views

I have two gridviews I want to drag and drop rows from one to the other. I cannot get any of the drag event to fire when I select a row and drag with the mouse. The only ones that seem to fire are the DragQuery and DragInfo, neither of which will give me drag effects. All the sample projects provided are for out of date code and need to have a half dozed helper classes. Are there no simple methods to implement this with the new Radgrid?

GridView

answered on 27 Oct 2010

5 answers

232 views

Aggregate Function

Hello

1. Can I add Aggregate Function between the rows without using groping?

2. Can I show column footers for the gird not for the columns with custom function?

Best regards

Ehud

GridView

answered on 27 Oct 2010

1 answer

64 views

DataSeries.AddRange Error!!

Hello,

When I use DataSeries.AddRange method,a exception occurs:

Object reference not set to an instance of an object.
at Telerik.Windows.Controls.Charting.DataSeries.InsertItem(Int32 index, DataPoint item) in c:\Builds\WPF_Scrum\HotFix_2010_Q2\Sources\Development\Controls\Chart\Chart\Data\DataSeries.cs:line 214

My code snap is followed:

DataSeries barSeries = new DataSeries();

var maxKey = features.Max(x => x.Key);

ObservableCollection<DataPoint> dataPoints=new ObservableCollection<DataPoint>();

Parallel.For(1, maxKey, i =>

{

DataPoint dataPoint;

if (features.ContainsKey(i))

{

int xLabel = i*_mStatisticsStep;

dataPoint = new DataPoint(xLabel, features[i])

{XCategory = xLabel.ToString()};

}

else

{

int xLabel = i*_mStatisticsStep;

dataPoint = new DataPoint(xLabel, 0)

{XCategory = xLabel.ToString()};

}

dataPoints.Add(dataPoint);

});

barSeries.AddRange(dataPoints);

Chart

answered on 27 Oct 2010

1 answer

116 views

Telerik Reporting. Drill down repor with object Data Source

Hi,
i want to create a drill down report with Object data source not with SqlDataSource.
i simply need to drill through child collections. im having a master collection and and want to drill through in each detail collection.
\
http://www.telerik.com/help/reporting/designing-reports-interactivity-how-to-add-drillthrough-action.html
in reference to mentioned link i m able to link the master detail but paramter value isnt set when my detailed report get open.

General Discussions

answered on 26 Oct 2010

2 answers

71 views

TileView filtering out duplicates?

I havea TileView bound to a RadObservableCollection which contains a collection of image filenames. The collection can contain duplicate fienames, but the TileView only shows one instance of each image. Is it possible to have the TileView show all instances of all images? Thanks, Todd.

TileView

answered on 26 Oct 2010

2 answers

396 views

RadComboBox and RadTextBox with custom Validation classes

I have a WPF application that I am validating ComboBox and TextBox controls using custom Validation classes in XAML.
The following is my ComboBox and it is a required field. I have not found any examples of similar code for validation using RadComboBox.

<ComboBox Width="225" VerticalAlignment="Center" IsEditable="True" IsReadOnly="False"> 
   <ComboBox.ItemTemplate> 
      <DataTemplate> 
         <TextBlock Text="{Binding}" /> 
      </DataTemplate> 
   </ComboBox.ItemTemplate> 
   <ComboBox.Text> 
      <Binding Path="Name" UpdateSourceTrigger="LostFocus"
               NotifyOnValidationError="True"
               NotifyOnSourceUpdated="True"
               NotifyOnTargetUpdated="True"> 
          <Binding.ValidationRules> 
             <Validator:RequiredFieldRule FieldName="Field Name Prompt" /> 
          </Binding.ValidationRules> 
       </Binding> 
    </ComboBox.Text> 
</ComboBox>
Here is my Window.Resources code to display the validation error message:
<Style TargetType="ComboBox"> 
    <Setter Property="VerticalAlignment" Value="Center" /> 
    <Style.Triggers> 
        <Trigger Property="Validation.HasError" Value="true"> 
            <Setter Property="ToolTip"
                    Value="{Binding RelativeSource={x:Static RelativeSource.Self}, 
                            Path=(Validation.Errors).CurrentItem.ErrorContent}" />
RequiredFieldRule is a class in my application derived from ValidationRule.  
 
 


When I replace 'ComboBox' with ' RadComboBox' the Style used to set the ToolTip with the error message does not work.  
Any help would be greatly appreciated.

General Discussions

answered on 26 Oct 2010

9 answers

229 views

How to sync Grid with a Textbox?

Hi there,

I try to syncronisize the Grid with one Textbox. Everytime I click on a other cell, the Textbox should show the value of the cell. Now when I change the value of the cell, the text in the Textbox have to change too. (Like MS-Excel do)
The datasource of the Grid is a DataTable and dependending to this DataTable the Grids Rows and Columns where build by Runtime. The Datatable will get his Data from various Textfiles so it should be different each time its loaded.

I hope someone understand what I want to say and can help me.

GridView

answered on 26 Oct 2010

1 answer

164 views

Columns does not displaying

Hello!

Now I testing a trial version of RadControls, and I have one issue:

I trying to create RadGridView with 40+ columns, with binds to ObservableCollection<>.

When I start my application, I can see the horizontal scrollbar, but not all of my columns are visible. If I will make several random clicks on RadGridView component, scrollbar width increases, and all columns became visible. What I do wrong?

1.<Grid>

2. <telerik:RadGridView Name="dataGrid1"

3. EnableColumnVirtualization="True"

4. EnableRowVirtualization="True"

5. DataLoadMode="Asynchronous"

6. />

7.</Grid>

01.public partial class MainWindow : Window

02. {

03. /// <summary>

04. /// Here is sample data class with a lot of fields

05. /// </summary>

06. class MyDataClass

07. {

08. public bool IsChecked { get; set; }

09. public int Number { get; set; }

10. public int Num43ber { get; set; }

11. public int Num4ber { get; set; }

12. public int Nu543mber { get; set; }

13. public int Num45ber { get; set; }

14. public int Nu5343mber { get; set; }

15. public int Num435ber { get; set; }

16. public int Num4vd5ber { get; set; }

17. public int Nu543sdmber { get; set; }

18. public int Num4sd5ber { get; set; }

19. public int Nu43mber { get; set; }

20. public int Num4fsdf35ber { get; set; }

21. public int Nu54fds3vmber { get; set; }

22. public int Nu52435mber { get; set; }

23. public int Num43dsad5ber { get; set; }

24. public int Num5435ber { get; set; }

25. public int Nu4532mber { get; set; }

26. public int Nu45mber { get; set; }

27. public int f5344 { get; set; }

28. public int Nufdmber { get; set; }

29. public int Nu3fg45mber { get; set; }

30. public int Nu52dfg435mber { get; set; }

31. public int Numfdg43dsad5ber { get; set; }

32. public int Numfdg5435ber { get; set; }

33. public int Nudfg4532mber { get; set; }

34. public int Nu4fdg5mber { get; set; }

35. public int f53fdg44 { get; set; }

36. public int Nufgfdmber { get; set; }

37. public int Nufgdf345mber { get; set; }

38. //

39. public int Nufds45mber { get; set; }

40. public int f5dsf344 { get; set; }

41. public int Nasdfufdmber { get; set; }

42. public int Nadsfu3fg45mber { get; set; }

43. public int Nudasf52dfg435mber { get; set; }

44. public int Nasdfumfdg43dsad5ber { get; set; }

45. public int Nudsafmfdg5435ber { get; set; }

46. public int Nuadsfdfg4532mber { get; set; }

47. public int Nudsf4fdg5mber { get; set; }

48. public int f5dsaf3fdg44 { get; set; }

49. public int Nuadffgfdmber { get; set; }

50. public int LASTCOLUMN { get; set; }

51. }

52.

53. // here is sample collection

54. ObservableCollection<MyDataClass> list;

55. public MainWindow()

56. {

57. InitializeComponent();

58. list = new ObservableCollection<MyDataClass>();

59. // fill the collection with some elements

60. for (int i = 0; i < 50; i++)

61. list.Add(new MyDataClass() { IsChecked = true, Number= i });

62. // bind it to RadGridView

63. dataGrid1.ItemsSource = list;

64. }

65. }

Thanks. And sorry for my bad english, please :(.

GridView

answered on 26 Oct 2010

1 answer

75 views

Filtering with List

Hello,

Here is my question.

We have the GridView, and some columns are bound to the List<MyType>.We've made a custom filter like shown in some of your. demos. Now we need to filter those columns, but the DataMemberBinding is set to the List. Some code:

01.<DataTemplate x:Key="cellTemplate">

02. <DataTemplate.Resources>

03. <my:PercentsConverter x:Key="PerConv">

04. </DataTemplate.Resources>

05. <TextBlock>

06. <TextBlock.Text>

07. <MultiBinding Converter ="{StaticResource PerConv}"

08. ConverterParameter="MyParam">

09. <Binding Path="ListValues"/>

10. <Binding Path="SomeValues"/>

11. </MultiBinding>

12. </TextBlock.Text>

13. </TextBlock>

14.</DataTemplate>

01.var tCol = new GridViewDataColumn()

02.{

03. Header = temp.ToString(),

04. CellTemplate = datatemplate,

05. CellStyleSelector = new CellStyleSelector(),

06. DataMemberBinding = new Binding("ListValues"),

07. IsFilterable = true,

08. FilteringControl = new Filtering()

09. {

10. Minimum = 0,

11. Maximum = 100

12. },

13.};

When we start the program there is no filter at these columns at all.

GridView

answered on 26 Oct 2010

3 answers

574 views

XamlParseException was thrown

Type reference cannot find type named '{clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls}TransparentTheme'.
   at MS.Internal.Xaml.Context.ObjectWriterContext.ServiceProvider_Resolve(String qName)
   at MS.Internal.Xaml.ServiceProviderContext.System.Windows.Markup.IXamlTypeResolver.Resolve(String qName)
   at System.Windows.Markup.TypeTypeConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value)
   at System.Windows.Baml2006.TypeConverterMarkupExtension.ProvideValue(IServiceProvider serviceProvider)
   at MS.Internal.Xaml.Runtime.ClrObjectRuntime.CallProvideValue(MarkupExtension me, IServiceProvider serviceProvider)

ComboBox

answered on 26 Oct 2010