Questions on UI for WPF Forum

2 answers

409 views

I want to have a column wich contains values 1 - n and 'N/A'. I can use a nullable int and TargetNullValue.

    
            DataMemberBinding="{Binding Difference, TargetNullValue=N/A}"

but then i cant filter by writing 'N/A' i must write 'null' wich is not acceptable. Also the null value (N/A) is not listed in the select filter dialog.

I could also instead of a nullable int use a string, but then the sorting is done in ascii order and not natural order, so if i sort i will get a list with 1, 10, 127, 2 and so on. I would suggest that strings should be sorted in the natural order by default with a option to sort by ascii order. If i do a custom sort the filter dialog is not sorted the same way wich makes it look wierd.

so my question is, how can i make the column and the filter dialog sort the way i want?

GridView

answered on 18 Dec 2009

3 answers

171 views

GridViewSelectColumn selection problem

I built a simple app with only a grid with four columns (Id, Name, Gender and Active). After I got my app running I clicked on the Id column and the checkbox of the active column, wich is the GridViewSelectColumn, got selected too. Is this a bug or something? Can anyone provide an application that´s working so I can see what the problem is?

WPF version : I´m using the latest trial version of RadControls for WPF
OS: Win 7 Ultimate
Preferred programming language: C#

Thanks in advance.

GridView

answered on 18 Dec 2009

1 answer

111 views

Upgraded to WPF Q3 2009 and Hierarchy doesn't work anymore

Due to some errors I was having in Q2, I thought I would upgrade to Q3. Now my Grid's hierarchy doesn't work anymore. I installed the update, removed my references from my project, then added the new ones. The plus signs load but they don't actually expand when clicked.

I looked at the examples and made one change to reflect the example but still no luck.

    
            <Window x:Class="WTSCGCAppInterface.Header" 
        
                xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
        
                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
        
                xmlns:TelerikInput="clr-namespace:Telerik.Windows.Controls;assembly=Telerik.Windows.Controls.Input" 
        
                Title="Header" Height="600" Width="800" xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation"> 
        
                <Grid> 
        
                    <telerik:RadWrapPanel Height="60" Name="radPnlFilter" VerticalAlignment="Top"> 
        
                        <Label Grid.Row="0" Grid.Column="0">Cust#:</Label> 
        
                        <TextBox x:Name="txtCustNum" Width="50" Grid.Row="0" Grid.Column="0"></TextBox> 
        
                        <Label Grid.Row="0" Grid.Column="0">Week Ending#:</Label> 
        
                        <TelerikInput:RadMaskedTextBox x:Name="txtWeekEnding" Mask="##/##/####" Grid.Row="0" Grid.Column="0"></TelerikInput:RadMaskedTextBox> 
        
                        <Label Grid.Row="0" Grid.Column="0">Job#:</Label> 
        
                        <TextBox x:Name="txtJobNum" Width="50" Grid.Row="0" Grid.Column="0"></TextBox> 
        
                        <Label Grid.Row="0" Grid.Column="0">Sub Job#:</Label> 
        
                        <TextBox x:Name="txtSubJobNum" Width="50" Grid.Row="0" Grid.Column="0"></TextBox> 
        
                        <Button x:Name="btnFilter" Click="btnFilter_Click">Apply Filter</Button> 
        
                    </telerik:RadWrapPanel>        
        
                    <telerik:RadGridView Margin="0,58,0,0" Name="radGrdVwHeader" AutoGenerateColumns="False" ColumnsWidthMode="Fill" RowLoaded="radGrdVwHeader_RowLoaded"> 
        
                        <telerik:RadGridView.Columns>    
        
                            <telerik:GridViewDataColumn Header="HSTAT" UniqueName="HSTAT" IsVisible="False" /> 
        
                            <telerik:GridViewDataColumn Header="HCONO" UniqueName="HCONO" IsVisible="False" /> 
        
                            <telerik:GridViewDataColumn Header="HDVNO" UniqueName="HDVNO" IsVisible="False" /> 
        
                            <telerik:GridViewDataColumn Header="HSEQ" UniqueName="HSEQ" IsVisible="False" /> 
        
                            <telerik:GridViewDataColumn Header="HCUST" UniqueName="HCUST" IsVisible="False" /> 
        
                            <telerik:GridViewDataColumn Header="Job #" UniqueName="HJBNO" /> 
        
                            <telerik:GridViewDataColumn Header="Sub Job #" UniqueName="HSJNO" /> 
        
                            <telerik:GridViewDataColumn Header="Week Ending" UniqueName="HDTTK" /> 
        
                            <telerik:GridViewDataColumn Header="HDSCD" UniqueName="HDSCD" IsVisible="False" /> 
        
                            <telerik:GridViewDataColumn Header="Ticket#" UniqueName="HNUM0" /> 
        
                            <telerik:GridViewDataColumn Header="Crew#" UniqueName="HDES0" /> 
        
                            <telerik:GridViewDataColumn Header="District" UniqueName="HDES1" /> 
        
                            <telerik:GridViewDataColumn Header="FMC#" UniqueName="HDES2" /> 
        
                            <telerik:GridViewDataColumn Header="Division" UniqueName="HDES3" /> 
        
                            <telerik:GridViewDataColumn Header="Local#" UniqueName="HDES4" /> 
        
                            <telerik:GridViewDataColumn Header="Crew Type" UniqueName="HDES5" /> 
        
                            <telerik:GridViewDataColumn Header="Zone" UniqueName="HDES6" />                                                                                                               
        
                        </telerik:RadGridView.Columns> 
        
                        <telerik:RadGridView.ChildTableDefinitions> 
        
                            <telerik:GridViewTableDefinition/> 
        
                        </telerik:RadGridView.ChildTableDefinitions> 
        
                        <telerik:RadGridView.HierarchyChildTemplate> 
        
                            <DataTemplate> 
        
                                <telerik:RadGridView x:Name="ProdData" AutoGenerateColumns="False"> 
        
                                    <telerik:RadGridView.Columns> 
        
                                        <telerik:GridViewDataColumn Header="PCWNO" UniqueName="PCWNO" /> 
        
                                    </telerik:RadGridView.Columns> 
        
                                </telerik:RadGridView> 
        
                            </DataTemplate> 
        
                        </telerik:RadGridView.HierarchyChildTemplate> 
        
                    </telerik:RadGridView>                
        
                </Grid> 
        
            </Window>

    
            private void btnFilter_Click(object sender, RoutedEventArgs e) 
        
                    { 
        
                        string sWeekEnding = txtWeekEnding.MaskedText; 
        
                        string sAlteredFormat = sWeekEnding.Substring(6, 4) + sWeekEnding.Substring(0, 2) + sWeekEnding.Substring(3, 2); 
        
                        radGrdVwHeader.ItemsSource = _headerRecs.GetHeaderRecs(1, 0, Convert.ToDecimal(txtCustNum.Text), Convert.ToDecimal(sAlteredFormat), txtJobNum.Text, txtSubJobNum.Text, null, null, "");             
        
                        radGrdVwHeader.ChildTableDefinitions.Clear(); 
        
                        GridViewTableDefinition proddataDefinition = new GridViewTableDefinition(); 
        
                        proddataDefinition.Relation = new PropertyRelation("ProddataRecs"); 
        
                        //this.radGrdVwHeader.TableDefinition.ChildTableDefinitions.Add(proddataDefinition); 
        
                        this.radGrdVwHeader.ChildTableDefinitions.Add(proddataDefinition); 
        
                    }

GridView

answered on 18 Dec 2009

4 answers

289 views

Displaying Grid Data in Column-Row Format

Is it possible to display the grid contents in column-row format instead of row-column format without programmatically loading the data in column-row format? What I am looking for is a setting (property) in the grid that I can change that will switch the rows and columns around.

GridView

answered on 18 Dec 2009

6 answers

120 views

Replacement for CellRequestBringIntoView

CellRequestBringIntoView says its obsolete. What is its replacement? I'm using it to automatically enter edit mode.

GridView

answered on 17 Dec 2009

3 answers

260 views

[Solved] RadGrid Hierarchy - Binding from DataTable

Hi, I'm facing some problems with the RadGridView hierarchy. Any help would be greatly appreciated.

1. Nested DataTable works, but anyway to do it without loading the data of all child tables?

The following is an XML representation of the structure for the DataTable object used:

    
            <CustomerTable> 
        
              <Customer> 
        
                <Name>John</Name> 
        
                <Sex>Male</Sex> 
        
                <AccountTable> 
        
                  <Account> 
        
                    <AccountNo>0001</AccountNo> 
        
                    <Status>Active</Status> 
        
                  </Account> 
        
                </AccountTable> 
        
              </Customer> 
        
              <Customer> 
        
                <Name>Lily</Name> 
        
                <Sex>Female</Sex> 
        
                <AccountTable> 
        
                  <Account> 
        
                    <AccountNo>0002</AccountNo> 
        
                    <Status>Active</Status> 
        
                  </Account> 
        
                  <Account> 
        
                    <AccountNo>0003</AccountNo> 
        
                    <Status>Terminated</Status> 
        
                  </Account> 
        
                </AccountTable> 
        
              </Customer> 
        
            </CustomerTable>

I've managed to get the hierarchy to work using this DataTable object, but I would have to load the data of all child tables (in this case

the AccountTable) before binding to the ItemsSource of the RadGridView control. Is there anyway to load the child table data only when a row is expanded?
Also, for my case I cannot hard code the structure in class files (ie: creating Customer and Account classes) as shown in the examples in the demo.

2. Is there an event fired when a row is expanded to display child tables (ie: + sign clicked)?

3. Can anyone provide an example on how to use the BuildHierachyFromDataSet method in the RadGridView?

GridView

answered on 17 Dec 2009

2 answers

126 views

[Solved] Opening Demo XAML causes visual studio to crash

Opening any .xaml files in the C# or VB demo's provided via the trial install causes Visual Studio 2008 to crash without warning.

Opening the same xaml files from the same solution in Blend 3, however, causes no issues.

I'd prefer to be able to browse the xaml in Visual Studio. Any insight into what may be causing this behaviour?

The event viewer shows the following application event which coincides with the visual studio crash:

.NET Runtime version 2.0.50727.3082 - Fatal Execution Engine Error (7A2E1132) (0)

General Discussions

answered on 17 Dec 2009

1 answer

141 views

Deletion of Row from GridView

Hi,

I am facing a problem while deleting a record from the GridView, after clicking on the delete button, methods get executed and record is successfully deleted from the XML File and from the Observable collection property but the grid is not getting refreshed.

could you please suggest me asap.

File Code:

Binding to grid using MVVM pattern i.e. datasource list is observable collection which assign to the view datacontext.

View Model Class:

public class ScenerioViewModel : ViewModelBase

{

private IScenerioRepository _repository;

ObservableCollection<Scenerio> scenerio = new ObservableCollection<Scenerio>();

#region Constructor

public ScenerioViewModel (): this(new ScenerioRepository())

{

// Blank

}

public ScenerioViewModel(IScenerioRepository repository)

{

_repository = repository;

GetAllRecords();

}

#endregion Constructor

public ObservableCollection<Scenerio> OCScenario

{

get { return scenerio; }

}

private void GetAllRecords()

{

scenerio.Clear();

List<Scenerio> scenerioList = _repository.GetAllRecords();

foreach (Scenerio sce in scenerioList)

{

scenerio.Add(sce);

}

private RelayCommand deleteData;

public ICommand ICDeleteData

{

get

{

if (deleteData == null)

{

deleteData = new RelayCommand(param => DeleteData());

}

return deleteData;

}

private void DeleteData()

{

_repository.DeleteRecord(scenerio.FirstOrDefault());

GetAllRecords();

}

XAML File code:

<telerik:RadGridView x:Name="YeildCurveGrid" ItemsSource="{Binding Path=OCScenario/ListYeildCurve}" AutoGenerateColumns="False" DataLoadMode="Asynchronous" ColumnWidth="*" RowIndicatorVisibility="Collapsed" IsFilteringAllowed="False" ShowGroupPanel="False" >

<telerik:GridViewDataControl.Columns>

<telerik:GridViewDataColumn Header="Select" DataMemberBinding="{Binding IsSelected}" IsFilterable="False" IsSortable="False">

<telerik:GridViewDataColumn.CellTemplate>

</DataTemplate>

</telerik:GridViewDataColumn.CellTemplate>

</telerik:GridViewDataColumn>

<telerik:GridViewDataColumn Header="GUID" IsVisible="False" IsFilterable="False" DataMemberBinding="{Binding GUID}" IsReadOnly="True" IsSortable="False" ></telerik:GridViewDataColumn>

<telerik:GridViewDataColumn Header="Code" IsFilterable="False" DataMemberBinding="{Binding CrncyCode}" IsReadOnly="True" IsSortable="False" Background="BlanchedAlmond" ></telerik:GridViewDataColumn>

</telerik:GridViewDataColumn>

</telerik:GridViewDataControl.Columns>

</grid:RadGridView>

Thanks,

Gorakhnath Choudhary

GridView

answered on 17 Dec 2009

3 answers

184 views

System.InvalidOperationException when docking

I'm working on application using Prism and yours Q3 WPF controls. Unfortunately when I'm trying to dock control in another dock region the InvalidOperationException is thrown. Exception message says I should use ItemsControl.ItemsSource instead of ItemsSource and I really don`t known how to solve this.

Below you'll find my region adapter class, dockable view class and docking container declaration in main window

Region adapter

    
            namespace LTD.Desktop.Common 
        
            { 
        
                public class RadPaneGroupRegionAdapter : RegionAdapterBase<RadPaneGroup> 
        
                { 
        
                    public RadPaneGroupRegionAdapter(IRegionBehaviorFactory regionBehaviorFactory) 
        
                        : base(regionBehaviorFactory) 
        
                    { 
        
                    } 
        
                    protected override void Adapt(IRegion region, RadPaneGroup regionTarget) 
        
                    { 
        
                        region.Views.CollectionChanged += (s, e) => 
        
                        { 
        
                            switch (e.Action) 
        
                            { 
        
                                case NotifyCollectionChangedAction.Add: 
        
                                    foreach (var item in e.NewItems.OfType<RadPane>()) 
        
                                    { 
        
                                        regionTarget.AddItem(item, Telerik.Windows.Controls.Docking.DockPosition.Center); 
        
                                    } 
        
                                    break; 
        
                                case NotifyCollectionChangedAction.Remove: 
        
                                    foreach (var item in e.OldItems.OfType<RadPane>()) 
        
                                    { 
        
                                        item.RemoveFromParent(); 
        
                                    } 
        
                                    break; 
        
                                case NotifyCollectionChangedAction.Replace: 
        
                                    { 
        
                                        var oldItems = e.OldItems.OfType<RadPane>(); 
        
                                        var newItems = e.NewItems.OfType<RadPane>(); 
        
                                        var newItemsEnumerator = newItems.GetEnumerator(); 
        
                                        foreach (var oldItem in oldItems) 
        
                                        { 
        
                                            var parent = oldItem.Parent as ItemsControl; 
        
                                            if (parent != null && parent.Items.Contains(oldItem)) 
        
                                            { 
        
                                                parent.Items[parent.Items.IndexOf(oldItem)] = newItemsEnumerator.Current; 
        
                                                if (!newItemsEnumerator.MoveNext()) 
        
                                                { 
        
                                                    break; 
        
                                                } 
        
                                            } 
        
                                            else 
        
                                            { 
        
                                                oldItem.RemoveFromParent(); 
        
                                                regionTarget.Items.Add(newItemsEnumerator.Current); 
        
                                            } 
        
                                        } 
        
                                    } 
        
                                    break; 
        
                                case NotifyCollectionChangedAction.Reset: 
        
                                    regionTarget 
        
                                        .EnumeratePanes() 
        
                                        .ToList() 
        
                                        .ForEach(p => p.RemoveFromParent()); 
        
                                    break; 
        
                                default: 
        
                                    break; 
        
                            } 
        
                        }; 
        
                        foreach (var view in region.Views.OfType<RadPane>()) 
        
                        { 
        
                            regionTarget.Items.Add(view); 
        
                        } 
        
                    } 
        
                    protected override IRegion CreateRegion() 
        
                    { 
        
                        return new AllActiveRegion(); 
        
                    } 
        
                } 
        
            }

Dockable view

    
            namespace LTD.Examples.Modularity.Views 
        
            { 
        
                /// <summary> 
        
                /// Interaction logic for ExampleView.xaml 
        
                /// </summary> 
        
                public partial class ExampleView : RadDocumentPane 
        
                { 
        
                    public ExampleView() 
        
                    { 
        
                        InitializeComponent(); 
        
                    } 
        
                } 
        
            }

    
            <telerik:RadDocumentPane x:Class="LTD.Examples.Modularity.Views.ExampleView" 
        
                xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
        
                xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
        
                xmlns:telerik="http://schemas.telerik.com/2008/xaml/presentation" 
        
                Header="Example panel"/>

ExampleView class in design time also generate en error: Could not create an instance of type 'RadDocumentPane'

Views container:

    
            <!-- Workspaces container --> 
        
                    <telerik:RadDocking Name="Workspaces" DockPanel.Dock="Bottom" cal:RegionManager.RegionName="Workspaces"> 
        
                        <telerik:RadDocking.DocumentHost> 
        
                            <telerik:RadSplitContainer> 
        
                                <telerik:RadPaneGroup cal:RegionManager.RegionName="MainRegion" /> 
        
                            </telerik:RadSplitContainer> 
        
                        </telerik:RadDocking.DocumentHost> 
        
                    </telerik:RadDocking>

It's critical for me, so I'll be appreciate for any help.

Regards,
MC.

Docking

answered on 17 Dec 2009

1 answer

189 views

Commit the Datagrid Changes

How do we commit the changes made to data in a datagrid when using a dataset as a datasource.?

Ive tried using the tableapapter.update()
and
the radgridview.commitchanges()
methods but the changes are not persisted to the database.

Do we need to use the Telereik ORM (which I have never looked at)..will ORM work with access MDB's?

or should I work towards updating my access to sql and use entity models. (of which I have spent some time working so I'm familiar with it) ??
then just use the context.save() and let entity framework handle the plumbing

Suggestions, advice..Success/horror stories?

GridView

answered on 17 Dec 2009