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Remove Entity from RadDomainDataSource

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DomainDataSource

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Dejan asked on 13 Oct 2011, 10:39 AM

Hi all

I want to implement custom deleting of Entity using RadDomainDataSource and RadGridView:

<telerik:RadDomainDataSource

Name="OrganizerDomainDataSource"

AutoLoad="False" Height="0" Width="0"

DomainContext="{StaticResource OrganizerDomainContext}"

QueryName="GetLocationSetQuery" PageSize="1000"

LoadedData="OrganizerDomainDataSource_LoadedData"

SubmittedChanges="OrganizerDomainDataSource_SubmittedChanges">

</telerik:RadDomainDataSource>

<telerik:RadGridView

Name="LocationDataGrid"

AutoGenerateColumns="False"

Grid.Row="1" Grid.Column="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"

ItemsSource="{Binding Path=DataView, ElementName=OrganizerDomainDataSource}"

RowDetailsVisibilityMode="VisibleWhenSelected"

RowIndicatorVisibility="Collapsed" AlternationCount="2"

IsEnabled="{Binding Path=Parent.HasChanges, ElementName=LayoutRoot, Converter={StaticResource NotOperatorValueConverter}}"

IsReadOnly="True" ShowGroupPanel="False" IsFilteringAllowed="True"

SelectionMode="Single" SelectionUnit="FullRow">

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn DataMemberBinding="{Binding Path=Name}"

TextAlignment="Left" HeaderTextAlignment="Left"

Header="{Binding Path=LocationPage_LocationDataGrid_Header_Name, Source={StaticResource PageResources}}"

Width="SizeToCells"

IsFilterable="True"

ShowDistinctFilters="False"

ShowFieldFilters="True"/>

<telerik:GridViewDataColumn DataMemberBinding="{Binding Path=City}"

Header="{Binding Path=LocationPage_LocationDataGrid_Header_City, Source={StaticResource PageResources}}"

Width="SizeToCells"

IsFilterable="True"

ShowDistinctFilters="False"

ShowFieldFilters="True"/>

<telerik:GridViewDataColumn DataMemberBinding="{Binding Path=OrganisationPath}"

Header="{Binding Path=LocationPage_LocationDataGrid_Header_CompanyPath, Source={StaticResource PageResources}}"

Width="*"

IsFilterable="True"

ShowDistinctFilters="False"

ShowFieldFilters="True"/>

<telerik:GridViewDataColumn DataMemberBinding="{Binding Path=RoomSet.Count}"

TextAlignment="Right" HeaderTextAlignment="Right"

Header="{Binding Path=LocationPage_LocationDataGrid_Header_RoomNumber, Source={StaticResource PageResources}}"

Width="SizeToHeader"

IsFilterable="True"

ShowDistinctFilters="False"

ShowFieldFilters="True"/>

<telerik:GridViewDataColumn

x:Name="functionColumn"

Header="{Binding Path=LocationPage_LocationDataGrid_Header_Functions, Source={StaticResource PageResources}}" Width="SizeToHeader">

<telerik:GridViewDataColumn.CellTemplate>

<DataTemplate>

<StackPanel Orientation="Horizontal">

<Button Style="{StaticResource ImageButtonStyle}" Click="DeleteItemButton_Click" CommandParameter="{Binding Path=LocationId}">

<Image Source="../../Assets/Images/Icons/btn_delete.png"/>

<ToolTipService.ToolTip>

<ToolTip Content="{Binding Path=LocationPage_LocationDataGrid_Function_Tooltip_Delete, Source={StaticResource PageResources}}"></ToolTip>

</ToolTipService.ToolTip>

</Button>

</StackPanel>

</DataTemplate>

</telerik:GridViewDataColumn.CellTemplate>

</telerik:GridViewDataColumn>

</telerik:RadGridView.Columns>

</telerik:RadGridView>

In code behind I implemented DeleteButton handler:

/// <summary>

/// delete selected location

/// </summary>

/// <param name="sender"></param>

/// <param name="e"></param>

private void DeleteItemButton_Click(object sender, RoutedEventArgs e)

{

var itemId = (Guid)((Button)sender).CommandParameter;

var location = GetLocationFromDataSource(itemId);

if (location != null)

{

// ClxMessageBox: are you sure?

var msgBoxDeleting = new ClxMessageBox(ClxMessageBoxType.YesNo)

{

Title = GlobalResources.MsgBoxDeleting_Title,

Message = string.Format(GlobalResources.MsgBoxDeleting_Message, location.Name + "(" + location.OrganisationPath + ")")

};

msgBoxDeleting.ShowDialog(result =>

{

if (result)

{

LocationDataGrid.Items.Remove(location);

OrganizerDomainDataSource.SubmitChanges();

}

});

}

I did not find a way to remove selected Location directly from OrganizerDomainDataSource so I removed it from LocationDataGrid.

This implementation actually works.

Only question is: is there a better solution for removing Entity from RadDomainDataSource then this one:

LocationDataGrid.Items.Remove(location);

OrganizerDomainDataSource.SubmitChanges();

Regards,
Dekos

3 Answers, 1 is accepted

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