Questions on UI for WPF Forum

1 answer

138 views

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

179 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

185 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

1 answer

134 views

How can I bind to a DateTime ?

I'd like to bind SelectTime to a DateTime value, how can I do this ?

TimePicker

answered on 17 Dec 2009

1 answer

123 views

Arrow Navigation

I watched the "What's new" and saw the Ctrl-Home and End but I am wondering if the arrow navigation made it into the current relase?

Thanks,
-Sid.

GridView

answered on 17 Dec 2009

1 answer

155 views

Code Project

I was wondering if someone of the Telerik team could post the entire code project of the example given at http://www.telerik.com/help/wpf/gridview-selection-via-checkbox.html.

Thanks in advance.

GridView

answered on 17 Dec 2009

1 answer

126 views

Display Formatted Tooltip on chart points

So, here is my problem.

I am new to teleric RadCharts for WPF and I wanted to draw a chart that has points who have

1. Different shapes based on their values

2. Different animated tooltips when the user hovers over them (again) based on their values

Is this possible to do? Can some one please walk me through an approach?

Thanks

Chart

answered on 17 Dec 2009

3 answers

129 views

[Solved] decimal places without leeding 0

Hello. I'm using the RadNumericUpDown for entering measurements. I've set the control's decimal places property to 3 (using a binding to a business object property). when the control has no value (meaning the value I'm binding to is null), and the control's text itself is empty, the user is able to enter a number such as ".890" without the leading 0. However, when there is already a value in the control, such as "123.432" and the user selects the control, either by tab or by mouse click. THe user must type in a leading 0 in order to enter a value less then 1, such as "0.890".

My client wants to be able to enter values without needing a leading 0. I've tried handling the "GotFocus" event, and clearing the RadNumericUpDown.ValueProperty, or setting my business object's binded value to null. However, these changes do not take effect until the user leaves the control. Thus we get the weird behavior of the control clearing when the user leaves the control, instead of when they enter it.

Any ideas would be great. Thanks

Joshua

NumericUpDown

answered on 17 Dec 2009

3 answers

416 views

HorizontalContentAlignment doesn't work

Hi Team,

I want to align content of RadNumericUpDown to Left align. I have tried HorizontalContentAlignment="Left", but it doesn't work. Please suggest needful.

Thanks.

Sample:
File name: window1.xaml
XAML Content:
<Window x:Class="TelerikUpDown.Window1"
    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"
    Title="Window1" Height="300" Width="300">
    <Grid>
        <telerik:RadNumericUpDown Name="NumUpDown" Height="25"
                                  HorizontalContentAlignment="Left"
                                  SmallChange="1" Minimum="1" Maximum="10" Value="2"
                                  BorderThickness="0" LargeChange="5" ValueFormat="Numeric"
                                  Width="150">
        </telerik:RadNumericUpDown>
    </Grid>
</Window>

NumericUpDown

answered on 17 Dec 2009

2 answers

170 views

GridView edit mode takes numeric values only

For some strange reason, the gridview edit mode for a column that is string binded, accepts only numeric values. What could be wrong

    
             <telerik:RadGridView Name="rgvSiteDetails" Margin="10,10,10,10" Height="340" RowIndicatorVisibility="Collapsed"   
        
                                ShowGroupPanel="False" AutoGenerateColumns="False" Visibility="Visible" Background="Transparent" 
        
                                AutoGenerateHierarchyFromDataSet="False" BorderBrush="LightGray" CanUserFreezeColumns="False" CanUserInsertRows="False" 
        
                                HorizontalContentAlignment="Stretch" ShowColumnHeaders="True" IsFilteringAllowed="False"   
        
                                VerticalGridlinesBrush="LightGray" > 
        
                                <telerik:RadGridView.Columns> 
        
                                    <telerik:GridViewDataColumn UniqueName="IsSelected" DataMemberBinding="{Binding IsSelected}" Header="" Width="30" /> 
        
                                    <telerik:GridViewDataColumn UniqueName="SiteSequence" Header="" Width="30" DataMemberBinding="{Binding SiteSequence}" /> 
        
                                    <telerik:GridViewDataColumn UniqueName="SiteName" Header="SiteName" DataMemberBinding="{Binding SiteName}"  Width="120" /> 
        
                                    <telerik:GridViewDataColumn UniqueName="SiteShortName" Header="SiteShortName" DataMemberBinding="{Binding SiteShortName}"  Width="120"/>  
        
                                    <telerik:GridViewDataColumn IsReadOnly="True" UniqueName="ReceivedDate" IsVisible="True" Header="Received Date" Width="80"  DataMemberBinding="{Binding ReceivedDate}"  /> 
        
                                    <telerik:GridViewDataColumn IsReadOnly="True" UniqueName="PatientLastName" Header="Patient Last Name" IsVisible="True" Width="120"  DataMemberBinding="{Binding PatientLastName}"  /> 
        
                                    <telerik:GridViewDataColumn x:Name="gdcCassetteId" UniqueName="CassetteID" IsVisible="False" Header="Cassette Id" Width="80"  DataMemberBinding="{Binding CassetteID}" /> 
        
                                    <telerik:GridViewDataColumn x:Name="gdcSlideId" UniqueName="DisplayName" Header="Display Name" IsVisible="False" DataMemberBinding="{Binding DisplayName}"  /> 
        
                                    <telerik:GridViewDataColumn x:Name="gdcDisplayName" UniqueName="DisplayName" Header="Display Name" IsVisible="False" DataMemberBinding="{Binding DisplayName}"  /> 
        
                                    <telerik:GridViewDataColumn x:Name="gdcProcedureName" UniqueName="ProcedureName" Header="Procedure Name" IsVisible="False" DataMemberBinding="{Binding DisplayName}"  /> 
        
                                    <telerik:GridViewDataColumn x:Name="gdcLevelInfo" UniqueName="LevelInfo" Header="Level Info" IsVisible="False" DataMemberBinding="{Binding DisplayName}"  /> 
        
                                    <telerik:GridViewDataColumn x:Name="gdcmagazineid" UniqueName="magazineid" IsVisible="False" Header="Magazine Id"  DataMemberBinding="{Binding magazineid}"  /> 
        
                                    <telerik:GridViewDataColumn x:Name="gdcbin" UniqueName="bin" Header="Exit Bin" IsVisible="False"   DataMemberBinding="{Binding bin}"  /> 
        
                                </telerik:RadGridView.Columns> 
        
                            </telerik:RadGridView>

Below is the code behind

    
            private void rgvSiteDetails_CurrentCellChanged(object sender, GridViewCurrentCellChangedEventArgs e)  
        
                    {  
        
                        this.rgvSiteDetails.BeginEdit();  
        
                    }

    
             SharedData.lstSelectedCaseData = new ObservableCollection<SharedData.SelectedCaseData>();  
        
                            rgvSiteDetails.DataLoaded += new EventHandler<EventArgs>(rgvSiteDetails_DataLoaded);  
        
                           foreach (CaseDataCase item in SharedData.objCurrent.Items)  
        
                                    {  
        
                                        if (item.Specimen != null)  
        
                                            foreach (CaseDataCaseSpecimen item2 in item.Specimen)  
        
                                            {  
        
                                                SharedData.SelectedCaseData a = new SharedData.SelectedCaseData();  
        
                                                a.CaseId = item.CaseId;  
        
                                                a.AccessionNumber = item.AccessionNumber;  
        
                                                a.ReceivedDate = item.ReceivedDate;  
        
                                                a.PatientLastName = item.Patient[0].PatientLastName;  
        
                                                a.IsSelected = true;  
        
                                                a.SiteName = item2.SiteName;  
        
                                                a.SiteSequence = item2.SiteSequence;  
        
                                                a.SiteShortName = item2.SiteShortName;  
        
                                                a.SiteID = item2.SiteID;  
        
                                                SharedData.lstSelectedCaseData.Add(a);         
        
                                            }  
        
                                    }  
        
                                    rgvSiteDetails.ItemsSource = SharedData.lstSelectedCaseData;

    
            void rgvSiteDetails_DataLoaded(object sender, EventArgs e)  
        
                    {  
        
                        try 
        
                        {  
        
                            SharedData.Log.Info("Entering rgvSiteDetails_DataLoaded");  
        
                            rgvSiteDetails.ExpandAllGroups();  
        
                            SharedData.Log.Info("Exiting rgvSiteDetails_DataLoaded");  
        
                        }  
        
                        catch (Exception ex)  
        
                        {  
        
                            SharedMethods.HandleExceptions(ex);  
        
                        }  
        
                    }

Any help would be highly appreciated.
Pooran

GridView

answered on 17 Dec 2009