or
2 answers
164 views
Hi,
is there a possibility to select or to doubleclick a row only by clicking on the RowIndicator?
I need an event to open a new Window in a RadGridView.
The double click event of the RadGridView works, but if you try to change a value of a column and if you are clicking too fast, you will hit the double click event.
4 answers
210 views
Can I adjust RadDocking so that I would be able to place RadPane into one (tabbed) or a few RadPaneGroups, but within the same DocumentHost?
For example:
write:
Write:
wrong:
<RadDocking>
Nikolay Chekalkin
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answered
on
11 Dec 2009
1 answer
446 views
Hello
I have a Hierarchy grid
I add a MouseDoubleClick event both to my
parent and child grids
the problem is
when I double click the child
the event raise twice, once to the child and then to the parent.
I have a Hierarchy grid
I add a MouseDoubleClick event both to my
parent and child grids
the problem is
when I double click the child
the event raise twice, once to the child and then to the parent.
Milan
Telerik team
answered
on
10 Dec 2009
1 answer
157 views
I have in my .xaml the following code:
.
.
.
.
the count function works but the sum function doesn't, it says in spanish something like "There isn't a 'Sum' method in the 'System.Linq.Enumerable' type, compatible with the specified arguments."
The ItemSource that i'm binding is an Arraylist that contains objects of an object type that i created.
and the other problem is that the columns that have the aggregate functions, duplicate.
<telerik:GridViewDataColumn Header="Mesa" DataMemberBinding="{Binding mesa}">
<telerik:GridViewColumn.AggregateFunctions>
<telerik:CountFunction Caption="# Registros encontrados: " />
</telerik:GridViewColumn.AggregateFunctions>
</telerik:GridViewDataColumn>
<telerik:GridViewDataColumn x:Name="efectivo" Header="efectivo" DataMemberBinding="{Binding efectivo}">
<telerik:GridViewColumn.AggregateFunctions>
<telerik:SumFunction Caption="Total: " />
</telerik:GridViewColumn.AggregateFunctions>
</telerik:GridViewDataColumn>
| <telerik:RadGridView x:Name="radGridView1" IsReadOnly="True" Grid.Column="1" Grid.Row="1" Margin="0,0,0,5" Grid.RowSpan="3"> |
| <telerik:RadGridView.Columns> |
| <telerik:GridViewDataColumn Header="Mesa" DataMemberBinding="{Binding mesa}"> |
| <telerik:GridViewColumn.AggregateFunctions> |
| <telerik:CountFunction Caption="# Registros encontrados: " /> |
| </telerik:GridViewColumn.AggregateFunctions> |
| </telerik:GridViewDataColumn> |
| <telerik:GridViewDataColumn x:Name="efectivo" Header="efectivo" DataMemberBinding="{Binding efectivo}"> |
| <telerik:GridViewColumn.AggregateFunctions> |
| <telerik:SumFunction Caption="Total: " /> |
| </telerik:GridViewColumn.AggregateFunctions> |
| </telerik:GridViewDataColumn> |
.
.
.
.
the count function works but the sum function doesn't, it says in spanish something like "There isn't a 'Sum' method in the 'System.Linq.Enumerable' type, compatible with the specified arguments."
The ItemSource that i'm binding is an Arraylist that contains objects of an object type that i created.
| ArrayList listaMesas = Oper_SoftCount.consultarFecha(dt); |
| this.radGridView1.ItemsSource = listaMesas; |
and the other problem is that the columns that have the aggregate functions, duplicate.
<telerik:GridViewDataColumn Header="Mesa" DataMemberBinding="{Binding mesa}">
<telerik:GridViewColumn.AggregateFunctions>
<telerik:CountFunction Caption="# Registros encontrados: " />
</telerik:GridViewColumn.AggregateFunctions>
</telerik:GridViewDataColumn>
<telerik:GridViewDataColumn x:Name="efectivo" Header="efectivo" DataMemberBinding="{Binding efectivo}">
<telerik:GridViewColumn.AggregateFunctions>
<telerik:SumFunction Caption="Total: " />
</telerik:GridViewColumn.AggregateFunctions>
</telerik:GridViewDataColumn>
Rossen Hristov
Telerik team
answered
on
10 Dec 2009
2 answers
164 views
Hello
The SelectedItem property of the treeview does not always contain what I would expect.
Examples:
How should I handle these use cases? Binding to another property?
Best regards,
Franziska
The SelectedItem property of the treeview does not always contain what I would expect.
Examples:
- Cancel Selection
The ItemsSource property is bound to a collection containing A and B objects. I want that only the A object are selectable. The B objects are just for information. I use the following code:
However, the SelectedItem property contains the B object afterwards. I would expect the SelectedItem property to be null.void radTreeView_PreviewSelected(object sender, Telerik.Windows.RadRoutedEventArgs e) { // get a reference to the item that will be selected RadTreeViewItem itemToSelect = e.OriginalSource as RadTreeViewItem; // check item that will be selected if (itemToSelect != null && itemToSelect.Item is B) { e.Handled = true; } } - Remove the selected item from the bound collection
If I remove the currently selected item from the bound collection, then the node has disappeard as I expected, but the SelectedItem property still contains the removed object. I would expect, that the SelectedItem property always contains objects that are also in the ItemsCollection or null otherwise.
How should I handle these use cases? Binding to another property?
Best regards,
Franziska
0 answers
97 views
Our latest Q3 2009 SP1 release (version 2009.3.1208) uses WCF RIA Services Beta for Visual Studio 2008 SP1. In other words, you should install this WCF RIA Services to be able to load our demos locally.
Please use the URL above to go to the download page of WCF RIA Services Beta for Visual Studio 2008 SP1.
Please use the URL above to go to the download page of WCF RIA Services Beta for Visual Studio 2008 SP1.
Telerik Admin
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asked
on
10 Dec 2009
1 answer
160 views
Hi there,
Has anybody else have had issues setting the DisplayDateEnd of the RadDatePicker to a date in the past? Whenever I do it, I get an ArgumentOutOfRangeException : Invalid DisplayDateEnd value. Paramter name: sender.
I'm using ver 2009.2.1002.35
Thank you very much,
Peter
PS - Here is the stack trace :
at Telerik.Windows.Controls.RadCalendar.OnDisplayDateEndChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e) in c:\Builds\WPF_Scrum\Input_WPF_2009_Q2_SP2\Sources\Development\Controls\Input\Calendar\RadCalendar.cs:line 3042
at System.Windows.DependencyObject.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.FrameworkElement.OnPropertyChanged(DependencyPropertyChangedEventArgs e)
at System.Windows.DependencyObject.NotifyPropertyChange(DependencyPropertyChangedEventArgs args)
at System.Windows.DependencyObject.UpdateEffectiveValue(EntryIndex entryIndex, DependencyProperty dp, PropertyMetadata metadata, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, Boolean coerceWithDeferredReference, OperationType operationType)
at System.Windows.StyleHelper.ApplyTemplatedParentValue(DependencyObject container, FrameworkObject child, Int32 childIndex, FrugalStructList`1& childRecordFromChildIndex, DependencyProperty dp, FrameworkElementFactory templateRoot)
at System.Windows.StyleHelper.InvalidatePropertiesOnTemplateNode(DependencyObject container, FrameworkObject child, Int32 childIndex, FrugalStructList`1& childRecordFromChildIndex, Boolean isDetach, FrameworkElementFactory templateRoot)
at System.Windows.StyleHelper.LoadOptimizedTemplateContent(DependencyObject container, ParserContext parserContext, OptimizedTemplateContent optimizedTemplateContent, FrameworkTemplate frameworkTemplate, IComponentConnector componentConnector, IStyleConnector styleConnector, List`1 affectedChildren, UncommonField`1 templatedNonFeChildrenField)
at System.Windows.FrameworkTemplate.LoadContent(DependencyObject container, List`1 affectedChildren, UncommonField`1 templatedNonFeChildrenField)
at System.Windows.StyleHelper.ApplyTemplateContent(UncommonField`1 dataField, DependencyObject container, FrameworkElementFactory templateRoot, Int32 lastChildIndex, HybridDictionary childIndexFromChildID, FrameworkTemplate frameworkTemplate)
at System.Windows.FrameworkTemplate.ApplyTemplateContent(UncommonField`1 templateDataField, FrameworkElement container)
at System.Windows.FrameworkElement.ApplyTemplate()
at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
at System.Windows.UIElement.Measure(Size availableSize)
at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
at System.Windows.UIElement.Measure(Size availableSize)
at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
at System.Windows.UIElement.Measure(Size availableSize)
at System.Windows.Controls.Border.MeasureOverride(Size constraint)
at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
at System.Windows.UIElement.Measure(Size availableSize)
at System.Windows.Controls.Control.MeasureOverride(Size constraint)
at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
at System.Windows.UIElement.Measure(Size availableSize)
at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
at System.Windows.UIElement.Measure(Size availableSize)
at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
at System.Windows.UIElement.Measure(Size availableSize)
at System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
at System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
at System.Windows.Controls.Grid.MeasureOverride(Size constraint)
at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
at System.Windows.UIElement.Measure(Size availableSize)
at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
at System.Windows.UIElement.Measure(Size availableSize)
at System.Windows.Controls.Border.MeasureOverride(Size constraint)
at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
at System.Windows.UIElement.Measure(Size availableSize)
at System.Windows.Controls.Control.MeasureOverride(Size constraint)
at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
at System.Windows.UIElement.Measure(Size availableSize)
at MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
at System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
at System.Windows.FrameworkElement.MeasureCore(Size availableSize)
at System.Windows.UIElement.Measure(Size availableSize)
at System.Windows.ContextLayoutManager.UpdateLayout()
.
.
.
Kaloyan
Telerik team
answered
on
10 Dec 2009
3 answers
310 views
Hello,
I need to change visual style of line chart. I want to change size and fill of circle points, lines between points may remain unchanged.
I'm not sure what control I should template, because changing template of whole telerik:Line destroys all the lines between points and also Y positions of points are wrong.
Some example, like in your Demo application (Custom Bar Template) would be great.
Thank you!
I need to change visual style of line chart. I want to change size and fill of circle points, lines between points may remain unchanged.
I'm not sure what control I should template, because changing template of whole telerik:Line destroys all the lines between points and also Y positions of points are wrong.
Some example, like in your Demo application (Custom Bar Template) would be great.
Thank you!
Dwight
Telerik team
answered
on
10 Dec 2009
1 answer
199 views
Hi Telerik
In the following xaml I have set up a RadGridView with two columns:
This xaml was placed in a window with the following code behind:
Now if you run this code you will notice that the two DataGrid columns behave differently when you are updating them. As I understand, when ActionOnLostFocus is set to "CommitEdit" the cell being edited should save its new value when it looses focus. The cells in the first column behave in this fashion, however those in the second column do not - Each reverts to its old value whenever it looses focus.
Why is this? How do I change the behavior of the cells in the second column so that each cell saves its new value when focus is transfered elsewhere?
Cheers
Bob
In the following xaml I have set up a RadGridView with two columns:
| <t:RadGridView ItemsSource="{Binding Persons}" ActionOnLostFocus="CommitEdit" AutoGenerateColumns="False" > |
| <t:RadGridView.Columns> |
| <!-- Auto column --> |
| <t:GridViewDataColumn DataMemberBinding="{Binding Path=ID}" /> |
| <!-- Manual column --> |
| <t:GridViewDataColumn DataMemberBinding="{Binding Name}"> |
| <t:GridViewDataColumn.CellTemplate> |
| <DataTemplate> |
| <TextBlock Text="{Binding Name}" /> |
| </DataTemplate> |
| </t:GridViewDataColumn.CellTemplate> |
| <t:GridViewDataColumn.CellEditTemplate> |
| <DataTemplate> |
| <TextBox Text="{Binding Name,Mode=TwoWay}" /> |
| </DataTemplate> |
| </t:GridViewDataColumn.CellEditTemplate> |
| </t:GridViewDataColumn> |
| </t:RadGridView.Columns> |
| </t:RadGridView> |
This xaml was placed in a window with the following code behind:
| using System.Collections.ObjectModel; |
| using System.Windows; |
| namespace WpfApplication2 |
| { |
| /// <summary> |
| /// Interaction logic for MainWindow.xaml |
| /// </summary> |
| public partial class MainWindow : Window |
| { |
| public MainWindow() { |
| InitializeComponent(); |
| this.DataContext = this; |
| } |
| public ObservableCollection<Employee> Persons |
| { get { return EmployeeService.GetEmployees(); } } |
| } |
| public class Employee { |
| public int ID { get; set; } |
| public string Name { get; set; } |
| } |
| public class EmployeeService { |
| public static ObservableCollection<Employee> GetEmployees() |
| { |
| ObservableCollection<Employee> employees = new ObservableCollection<Employee>(); |
| Employee employee = new Employee(); |
| employee.Name = "Maria"; |
| employee.ID = 24890; |
| employees.Add(employee); |
| employee = new Employee(); |
| employee.Name = "Ana"; |
| employee.ID = 23890; |
| employees.Add(employee); |
| employee = new Employee(); |
| employee.Name = "Antonio"; |
| employee.ID = 24890; |
| employees.Add(employee); |
| employee = new Employee(); |
| return employees; |
| } |
| } |
| } |
Now if you run this code you will notice that the two DataGrid columns behave differently when you are updating them. As I understand, when ActionOnLostFocus is set to "CommitEdit" the cell being edited should save its new value when it looses focus. The cells in the first column behave in this fashion, however those in the second column do not - Each reverts to its old value whenever it looses focus.
Why is this? How do I change the behavior of the cells in the second column so that each cell saves its new value when focus is transfered elsewhere?
Cheers
Bob
Nedyalko Nikolov
Telerik team
answered
on
09 Dec 2009
2 answers
273 views
When I update a field in a WPF datagrid that's associated with a dataset the corresponding field in the underlying datatable is also modified after I issue a commitedit.
When I delete a column in the grid the corresponding column in the datatable is still present. Am I responsible for deleting the datatable column or am I doing something wrong?
Jorge Gonzalez
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answered
on
09 Dec 2009
