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21.2.2+ #4

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09cd066
Update example using new deletion validation logic
Alexander-Ploskin Sep 3, 2021
aa799f2
Show message boxes to interact with a user
Alexander-Ploskin Sep 8, 2021
9554b4d
README auto update [skip ci]
Sep 8, 2021
43c91a1
Fix codestyle
Alexander-Ploskin Sep 8, 2021
85a9979
Merge branch '21.2.2+' of https://github.com/DevExpress-Examples/how-…
Alexander-Ploskin Sep 8, 2021
526df37
Remove deletion mode
Alexander-Ploskin Sep 8, 2021
2af914a
Add input bindings
Alexander-Ploskin Sep 9, 2021
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42 changes: 4 additions & 38 deletions CS/GridControlCRUD.Common/View/GridControlDeleteRefreshBehavior.cs
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Original file line number Diff line number Diff line change
@@ -1,5 +1,4 @@
using DevExpress.CRUD.ViewModel;
using DevExpress.Mvvm;
using DevExpress.Mvvm;
using DevExpress.Mvvm.UI.Interactivity;
using DevExpress.Xpf.Core;
using DevExpress.Xpf.Data;
Expand All @@ -9,16 +8,10 @@
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Input;
using DevExpress.CRUD.ViewModel;

namespace DevExpress.CRUD.View {
public class GridControlDeleteRefreshBehavior : Behavior<TableView> {
public ICommand<RowDeleteArgs> OnDeleteCommand {
get { return (ICommand<RowDeleteArgs>)GetValue(OnDeleteCommandProperty); }
set { SetValue(OnDeleteCommandProperty, value); }
}
public static readonly DependencyProperty OnDeleteCommandProperty =
DependencyProperty.Register("OnDeleteCommand", typeof(ICommand<RowDeleteArgs>), typeof(GridControlDeleteRefreshBehavior), new PropertyMetadata(null));

public ICommand<RefreshArgs> OnRefreshCommand {
get { return (ICommand<RefreshArgs>)GetValue(OnRefreshCommandProperty); }
set { SetValue(OnRefreshCommandProperty, value); }
Expand All @@ -34,14 +27,12 @@ public string NoRecordsErrorMessage {
DependencyProperty.Register("NoRecordsErrorMessage", typeof(string), typeof(GridControlDeleteRefreshBehavior), new PropertyMetadata(null, (d, e) => { ((GridControlDeleteRefreshBehavior)d).UpdateErrorText(); }));


public ICommand DeleteCommand { get; }
public ICommand RefreshCommand { get; }

TableView View => AssociatedObject;
VirtualSourceBase VirtualSource => View?.DataControl?.ItemsSource as VirtualSourceBase;

public GridControlDeleteRefreshBehavior() {
DeleteCommand = new DelegateCommand(DoDelete, CanDelete);
RefreshCommand = new AsyncCommand(DoRefresh, CanRefresh);
}

Expand Down Expand Up @@ -72,10 +63,6 @@ void UpdateErrorText() {
}

async void OnPreviewKeyDown(object sender, KeyEventArgs e) {
if(e.Key == Key.Delete && CanDelete()) {
e.Handled = true;
DoDelete();
}
if(e.Key == Key.F5 && CanRefresh()) {
e.Handled = true;
await DoRefresh();
Expand All @@ -100,33 +87,12 @@ bool CanRefresh() {
var canRefreshVirtualSource = VirtualSource == null
|| ((VirtualSource as InfiniteAsyncSource)?.IsResetting != true && !VirtualSource.AreRowsFetching);
return canRefreshVirtualSource
&& OnRefreshCommand != null
&& !IsEditingRowState()
&& OnRefreshCommand != null
&& !IsEditingRowState()
&& !isRefreshInProgress
&& (View?.Grid.ItemsSource != null || NoRecordsErrorMessage != null);
}

void DoDelete() {
var row = View.Grid.SelectedItem;
if(row == null)
return;
if(DXMessageBox.Show(View, "Are you sure you want to delete this row?", "Delete Row", MessageBoxButton.OKCancel) == MessageBoxResult.Cancel)
return;
try {
OnDeleteCommand.Execute(new RowDeleteArgs(row));
if(VirtualSource != null)
VirtualSource?.RefreshRows();
else
View.Commands.DeleteFocusedRow.Execute(null);
} catch(Exception ex) {
DXMessageBox.Show(ex.Message);
}
}

bool CanDelete() {
return OnDeleteCommand != null && !IsEditingRowState() && !isRefreshInProgress && View?.Grid.CurrentItem != null;
}

bool IsEditingRowState() {
return View?.AreUpdateRowButtonsShown == true;
}
Expand Down
26 changes: 23 additions & 3 deletions CS/GridControlCRUD.Common/ViewModel/AsyncCollectionViewModel.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -2,13 +2,16 @@
using DevExpress.Mvvm;
using DevExpress.Mvvm.DataAnnotations;
using DevExpress.Mvvm.Xpf;
using System;
using System.Collections.Generic;
using System.Threading.Tasks;

namespace DevExpress.CRUD.ViewModel {
public abstract class AsyncCollectionViewModel<T> : ViewModelBase where T : class {
readonly IDataProvider<T> dataProvider;

IMessageBoxService MessageBoxService => GetService<IMessageBoxService>();

protected AsyncCollectionViewModel(IDataProvider<T> dataProvider) {
this.dataProvider = dataProvider;
StartRefresh();
Expand All @@ -31,6 +34,26 @@ async void StartRefresh() {
await OnRefreshAsync();
}

[Command]
public void OnDeleteRow(DeleteRowValidationArgs args) => OnDelete(args);

void OnDelete(DeleteRowValidationArgs args) {
if(MessageBoxService.ShowMessage("Are you sure you want to delete this row?", "Delete Row", MessageButton.OKCancel) == MessageResult.Cancel) {
args.Result = "Not accepted";
return;
}
try {
if(IsLoading) {
args.Result = "Data is refrehsing";
return;
}
dataProvider.Delete((T)args.Items[0]);
} catch(Exception ex) {
MessageBoxService.ShowMessage(ex.Message);
args.Result = ex.Message;
}
}

[Command]
public void OnRefresh(RefreshArgs args) {
args.Result = OnRefreshAsync();
Expand Down Expand Up @@ -67,8 +90,5 @@ async Task<ValidationErrorInfo> OnUpdateRowAsync(T entity, bool isNew) {
await dataProvider.UpdateAsync(entity);
return null;
}

[Command]
public void OnDelete(RowDeleteArgs args) => dataProvider.Delete((T)args.Row);
}
}
24 changes: 21 additions & 3 deletions CS/GridControlCRUD.Common/ViewModel/CollectionViewModel.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -2,12 +2,17 @@
using DevExpress.Mvvm;
using DevExpress.Mvvm.DataAnnotations;
using DevExpress.Mvvm.Xpf;
using DevExpress.Xpf.Core;
using System;
using System.Collections.Generic;
using System.Windows;

namespace DevExpress.CRUD.ViewModel {
public abstract class CollectionViewModel<T> : ViewModelBase where T : class {
readonly IDataProvider<T> dataProvider;

IMessageBoxService MessageBoxService => GetService<IMessageBoxService>();

protected CollectionViewModel(IDataProvider<T> dataProvider) {
this.dataProvider = dataProvider;
OnRefresh();
Expand All @@ -22,6 +27,22 @@ public string EntitiesErrorMessage {
private set => SetValue(value);
}

[Command]
public void OnDeleteRow(DeleteRowValidationArgs args) => OnDelete(args);

void OnDelete(DeleteRowValidationArgs args) {
if(MessageBoxService.ShowMessage("Are you sure you want to delete this row?", "Delete Row", MessageButton.OKCancel) == MessageResult.Cancel) {
args.Result = "Not accepted";
return;
}
try {
dataProvider.Delete((T)args.Items[0]);
} catch (Exception ex) {
MessageBoxService.ShowMessage(ex.Message);
args.Result = ex.Message;
}
}

[Command]
public void OnRefresh(RefreshArgs _) {
OnRefresh();
Expand All @@ -48,8 +69,5 @@ public void OnUpdateRow(RowValidationArgs args) {
else
dataProvider.Update(entity);
}

[Command]
public void OnDelete(RowDeleteArgs args) => dataProvider.Delete((T)args.Row);
}
}
19 changes: 16 additions & 3 deletions CS/GridControlCRUD.Common/ViewModel/VirtualCollectionViewModel.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,8 @@ namespace DevExpress.CRUD.ViewModel {
public abstract class VirtualCollectionViewModel<T> : ViewModelBase where T : class, new() {
readonly IDataProvider<T> dataProvider;

IMessageBoxService MessageBoxService => GetService<IMessageBoxService>();

protected VirtualCollectionViewModel(IDataProvider<T> dataProvider) {
this.dataProvider = dataProvider;
StartRefresh();
Expand Down Expand Up @@ -90,10 +92,21 @@ UICommand[] CreateCommands(Action saveAction) {
protected abstract EntityViewModel<T> CreateEntityViewModel(T entity);

[Command]
public void OnDelete(RowDeleteArgs args) {
this.dataProvider.Delete((T)args.Row);
}
public void OnDeleteRow(DeleteRowValidationArgs args) => OnDelete(args);

void OnDelete(DeleteRowValidationArgs args) {
if(MessageBoxService.ShowMessage("Are you sure you want to delete this row?", "Delete Row", MessageButton.OKCancel) == MessageResult.Cancel) {
args.Result = "Not accepted";
return;
}
try {
dataProvider.Delete((T)args.Items[0]);
} catch(Exception ex) {
MessageBoxService.ShowMessage(ex.Message);
args.Result = ex.Message;
}
}

[Command]
public void OnRefresh(RefreshArgs args) {
args.Result = OnRefreshCoreAsync();
Expand Down
20 changes: 10 additions & 10 deletions CS/GridControlCRUDMVVM/GridControlCRUDMVVM.csproj
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Original file line number Diff line number Diff line change
Expand Up @@ -39,18 +39,18 @@
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<ItemGroup>
<Reference Include="DevExpress.Data.v21.1" />
<Reference Include="DevExpress.Data.Desktop.v21.1" />
<Reference Include="DevExpress.Images.v21.1">
<Reference Include="DevExpress.Data.v21.2" />
<Reference Include="DevExpress.Data.Desktop.v21.2" />
<Reference Include="DevExpress.Images.v21.2">
<Private>True</Private>
</Reference>
<Reference Include="DevExpress.Mvvm.v21.1" />
<Reference Include="DevExpress.Printing.v21.1.Core" />
<Reference Include="DevExpress.Xpf.Core.v21.1" />
<Reference Include="DevExpress.Xpf.Printing.v21.1" />
<Reference Include="DevExpress.Xpf.Grid.v21.1" />
<Reference Include="DevExpress.Xpf.Grid.v21.1.Core" />
<Reference Include="DevExpress.Xpf.Grid.v21.1.Extensions" />
<Reference Include="DevExpress.Mvvm.v21.2" />
<Reference Include="DevExpress.Printing.v21.2.Core" />
<Reference Include="DevExpress.Xpf.Core.v21.2" />
<Reference Include="DevExpress.Xpf.Printing.v21.2" />
<Reference Include="DevExpress.Xpf.Grid.v21.2" />
<Reference Include="DevExpress.Xpf.Grid.v21.2.Core" />
<Reference Include="DevExpress.Xpf.Grid.v21.2.Extensions" />
<Reference Include="EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089, processorArchitecture=MSIL">
<HintPath>..\packages\EntityFramework.6.4.0\lib\net45\EntityFramework.dll</HintPath>
</Reference>
Expand Down
13 changes: 10 additions & 3 deletions CS/GridControlCRUDMVVM/MainWindow.xaml
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Original file line number Diff line number Diff line change
Expand Up @@ -15,16 +15,22 @@
<Window.DataContext>
<northwind_viewModel:ProductCollectionViewModel/>
</Window.DataContext>
<dxmvvm:Interaction.Behaviors>
<dx:DXMessageBoxService/>
</dxmvvm:Interaction.Behaviors>
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<dxb:ToolBarControl>
<dxb:BarButtonItem Content="Refresh (F5)" Command="{Binding RefreshCommand, ElementName=DeleteRefreshBehavior}" BarItemDisplayMode="ContentAndGlyph" Glyph="{dx:DXImage SvgImages/Icon Builder/Actions_Refresh.svg}"/>
<dxb:BarButtonItem Content="Delete (Del)" Command="{Binding DeleteCommand, ElementName=DeleteRefreshBehavior}" BarItemDisplayMode="ContentAndGlyph" Glyph="{dx:DXImage SvgImages/Icon Builder/Actions_Delete.svg}"/>
<dxb:BarButtonItem Content="Delete (Del)" Command="dxg:GridCommands.DeleteFocusedRow" CommandTarget="{Binding ElementName=view}" BarItemDisplayMode="ContentAndGlyph" Glyph="{dx:DXImage SvgImages/Icon Builder/Actions_Delete.svg}"/>
</dxb:ToolBarControl>
<dxg:GridControl Grid.Row="1" x:Name="grid" ItemsSource="{Binding Entities}">
<dxg:GridControl.InputBindings>
<KeyBinding Command="{Binding Commands.DeleteFocusedRow, ElementName=view}" Key="Delete"/>
</dxg:GridControl.InputBindings>
<dxg:GridColumn FieldName="Name" Width="2*"/>
<dxg:GridColumn FieldName="CategoryId" Header="Category" Width="*">
<dxg:GridColumn.EditSettings>
Expand All @@ -36,10 +42,11 @@
AutoWidth="True"
ShowUpdateRowButtons="OnCellEditorOpen"
NewItemRowPosition="Top"
ValidateRowCommand="{Binding OnUpdateRowCommand}">
ValidateRowCommand="{Binding OnUpdateRowCommand}"
ValidateDeleteRowCommand="{Binding OnDeleteRowCommand}">
<dxmvvm:Interaction.Behaviors>
<view:GridControlDeleteRefreshBehavior x:Name="DeleteRefreshBehavior" NoRecordsErrorMessage="{Binding EntitiesErrorMessage}"
OnDeleteCommand="{Binding OnDeleteCommand}" OnRefreshCommand="{Binding OnRefreshCommand}"/>
OnRefreshCommand="{Binding OnRefreshCommand}"/>
</dxmvvm:Interaction.Behaviors>
</dxg:TableView>
</dxg:GridControl.View>
Expand Down
20 changes: 10 additions & 10 deletions CS/GridControlCRUDMVVMAsync/GridControlCRUDMVVMAsync.csproj
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Expand Up @@ -39,18 +39,18 @@
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<ItemGroup>
<Reference Include="DevExpress.Data.v21.1" />
<Reference Include="DevExpress.Data.Desktop.v21.1" />
<Reference Include="DevExpress.Images.v21.1">
<Reference Include="DevExpress.Data.v21.2" />
<Reference Include="DevExpress.Data.Desktop.v21.2" />
<Reference Include="DevExpress.Images.v21.2">
<Private>True</Private>
</Reference>
<Reference Include="DevExpress.Mvvm.v21.1" />
<Reference Include="DevExpress.Printing.v21.1.Core" />
<Reference Include="DevExpress.Xpf.Core.v21.1" />
<Reference Include="DevExpress.Xpf.Printing.v21.1" />
<Reference Include="DevExpress.Xpf.Grid.v21.1" />
<Reference Include="DevExpress.Xpf.Grid.v21.1.Core" />
<Reference Include="DevExpress.Xpf.Grid.v21.1.Extensions" />
<Reference Include="DevExpress.Mvvm.v21.2" />
<Reference Include="DevExpress.Printing.v21.2.Core" />
<Reference Include="DevExpress.Xpf.Core.v21.2" />
<Reference Include="DevExpress.Xpf.Printing.v21.2" />
<Reference Include="DevExpress.Xpf.Grid.v21.2" />
<Reference Include="DevExpress.Xpf.Grid.v21.2.Core" />
<Reference Include="DevExpress.Xpf.Grid.v21.2.Extensions" />
<Reference Include="EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089, processorArchitecture=MSIL">
<HintPath>..\packages\EntityFramework.6.4.0\lib\net45\EntityFramework.dll</HintPath>
</Reference>
Expand Down
10 changes: 7 additions & 3 deletions CS/GridControlCRUDMVVMAsync/MainWindow.xaml
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Original file line number Diff line number Diff line change
Expand Up @@ -22,9 +22,12 @@
</Grid.RowDefinitions>
<dxb:ToolBarControl>
<dxb:BarButtonItem Content="Refresh (F5)" Command="{Binding RefreshCommand, ElementName=DeleteRefreshBehavior}" BarItemDisplayMode="ContentAndGlyph" Glyph="{dx:DXImage SvgImages/Icon Builder/Actions_Refresh.svg}"/>
<dxb:BarButtonItem Content="Delete (Del)" Command="{Binding DeleteCommand, ElementName=DeleteRefreshBehavior}" BarItemDisplayMode="ContentAndGlyph" Glyph="{dx:DXImage SvgImages/Icon Builder/Actions_Delete.svg}"/>
<dxb:BarButtonItem Content="Delete (Del)" Command="dxg:GridCommands.DeleteFocusedRow" CommandTarget="{Binding ElementName=view}" BarItemDisplayMode="ContentAndGlyph" Glyph="{dx:DXImage SvgImages/Icon Builder/Actions_Delete.svg}"/>
</dxb:ToolBarControl>
<dxg:GridControl Grid.Row="1" x:Name="grid" ItemsSource="{Binding Entities}" ShowLoadingPanel="{Binding IsLoading}">
<dxg:GridControl.InputBindings>
<KeyBinding Command="{Binding Commands.DeleteFocusedRow, ElementName=view}" Key="Delete"/>
</dxg:GridControl.InputBindings>
<dxg:GridColumn FieldName="Name" Width="2*"/>
<dxg:GridColumn FieldName="CategoryId" Header="Category" Width="*">
<dxg:GridColumn.EditSettings>
Expand All @@ -36,10 +39,11 @@
AutoWidth="True"
ShowUpdateRowButtons="OnCellEditorOpen"
NewItemRowPosition="Top"
ValidateRowCommand="{Binding OnUpdateRowCommand}">
ValidateRowCommand="{Binding OnUpdateRowCommand}"
ValidateDeleteRowCommand="{Binding OnDeleteRowCommand}">
<dxmvvm:Interaction.Behaviors>
<view:GridControlDeleteRefreshBehavior x:Name="DeleteRefreshBehavior" NoRecordsErrorMessage="{Binding EntitiesErrorMessage}"
OnDeleteCommand="{Binding OnDeleteCommand}" OnRefreshCommand="{Binding OnRefreshCommand}"/>
OnRefreshCommand="{Binding OnRefreshCommand}"/>
</dxmvvm:Interaction.Behaviors>
</dxg:TableView>
</dxg:GridControl.View>
Expand Down
22 changes: 11 additions & 11 deletions CS/GridControlCRUDMVVMInfiniteAsyncSource/GridControlCRUDMVVMInfiniteAsyncSource.csproj
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Expand Up @@ -39,19 +39,19 @@
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<ItemGroup>
<Reference Include="DevExpress.Data.v21.1" />
<Reference Include="DevExpress.Data.Desktop.v21.1" />
<Reference Include="DevExpress.Images.v21.1">
<Reference Include="DevExpress.Data.v21.2" />
<Reference Include="DevExpress.Data.Desktop.v21.2" />
<Reference Include="DevExpress.Images.v21.2">
<Private>True</Private>
</Reference>
<Reference Include="DevExpress.Mvvm.v21.1" />
<Reference Include="DevExpress.Printing.v21.1.Core" />
<Reference Include="DevExpress.Xpf.Core.v21.1" />
<Reference Include="DevExpress.Xpf.Printing.v21.1" />
<Reference Include="DevExpress.Xpf.Grid.v21.1" />
<Reference Include="DevExpress.Xpf.LayoutControl.v21.1" />
<Reference Include="DevExpress.Xpf.Grid.v21.1.Core" />
<Reference Include="DevExpress.Xpf.Grid.v21.1.Extensions" />
<Reference Include="DevExpress.Mvvm.v21.2" />
<Reference Include="DevExpress.Printing.v21.2.Core" />
<Reference Include="DevExpress.Xpf.Core.v21.2" />
<Reference Include="DevExpress.Xpf.Printing.v21.2" />
<Reference Include="DevExpress.Xpf.Grid.v21.2" />
<Reference Include="DevExpress.Xpf.LayoutControl.v21.2" />
<Reference Include="DevExpress.Xpf.Grid.v21.2.Core" />
<Reference Include="DevExpress.Xpf.Grid.v21.2.Extensions" />
<Reference Include="EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089, processorArchitecture=MSIL">
<HintPath>..\packages\EntityFramework.6.4.0\lib\net45\EntityFramework.dll</HintPath>
</Reference>
Expand Down
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