Checkbox is not checked in DevExpress GridControl using wpf - wpf

Question

I am trying to work on DevExpress GridControl Checkbox column but problem is that when I binding the checkbox value in XAML code dynamically its not work perfectlly
below I provide you my demo project code :-
XAML Code:-
<dxg:GridControl AutoPopulateColumns="True" HorizontalAlignment="Left" Margin="0,40,0,0" Name="gridControl1" VerticalAlignment="Top" Height="318" Width="503">
<dxg:GridControl.View>
<dxg:TableView Name="tableView1" ShowTotalSummary="True" />
</dxg:GridControl.View>
<dxg:GridControl.Columns>
<dxg:GridColumn DisplayMemberBinding="{Binding Path=EvenOdd}" Header="Even/Odd" />
<dxg:GridColumn Name="PickColumn" Header="Pick" Width="30"
AllowColumnFiltering="False" AllowSorting="False">
<dxg:GridColumn.CellTemplate>
<DataTemplate>
<CheckBox IsChecked="{Binding Path=IsValid}"
HorizontalAlignment="Center" VerticalAlignment="Center" >
</CheckBox>
</DataTemplate>
</dxg:GridColumn.CellTemplate>
</dxg:GridColumn>
</dxg:GridControl.Columns>
</dxg:GridControl>
my cs file code:-
public class ss
{
public bool IsValid { get; set; }
public string EvenOdd { get; set; }
}
Code Behind:
public List<ss> sList = new List<ss>();
private void Window_Loaded(object sender, RoutedEventArgs e)
{
for (int i = 0; i < 10; i++)
{
if (i % 2 == 0)
{
sList.Add(new ss { IsValid = true, EvenOdd = "Even" });
}
else
{
sList.Add(new ss { IsValid = false, EvenOdd = "Odd" });
}
}
gridControl1.ItemsSource = sList;
}

Answer 1

Adding on to HighCore's answer. If you would like to edit the data in your grid.
See ColumnBase.CellTemplate Property:
To enable data editing, use an editor shipped with the DevExpress Data Editors Library for WPF. The editor's Name must be set to
'PART_Editor'.
Standard controls can be used in CellTemplate only for display purposes. Data editing is not allowed.
Then,
xmlns:dxe="http://schemas.devexpress.com/winfx/2008/xaml/editors"
<dxg:GridColumn Name="PickColumn"
Header="Pick"
Width="30"
AllowColumnFiltering="False"
AllowSorting="False">
<dxg:GridColumn.CellTemplate>
<DataTemplate>
<dxe:CheckEdit x:Name="PART_Editor"
EditValue="{Binding Path=Data.IsValid, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"/>
</DataTemplate>
</dxg:GridColumn.CellTemplate>
</dxg:GridColumn>
You still need to use HighCore's implementation of INotifyPropertyChanged.

Answer 2

First of all you need to correct the binding inside the CellTemplate:
<CheckBox IsChecked="{Binding Path=RowData.Row.IsValid}"/>
Second, your data items should implement INotifyPropertyChanged:
public class ss:INotifyPropertyChanged
{
private bool _isValid;
private string _evenOdd;
public bool IsValid
{
get { return _isValid; }
set
{
_isValid = value;
OnPropertyChanged("IsValid");
}
}
public string EvenOdd
{
get { return _evenOdd; }
set
{
_evenOdd = value;
OnPropertyChanged("EvenOdd");
}
}
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged(string propertyName)
{
PropertyChangedEventHandler handler = PropertyChanged;
if (handler != null) handler(this, new PropertyChangedEventArgs(propertyName));
}
}

Answer 3

xmlns:dxgcore="http://schemas.devexpress.com/winfx/2008/xaml/grid"
<dxgcore:GridColumn Width="20"
AllowEditing="True"
Binding="{Binding Path=IsChecked, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
Header="R"
Visible="{Binding CheckboxSelection}"
VisibleIndex="6">
<dxgcore:GridColumn.CellTemplate>
<DataTemplate>
<dxe:CheckEdit HorizontalAlignment="Center"
VerticalAlignment="Center"
Command="{Binding
Path=View.DataContext.IsCheckedCommand}"
CommandParameter="{Binding RowData.Row}"
IsChecked="{Binding RowData.Row.IsChecked, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
IsEnabled="{Binding Path=View.DataContext.IsCheckBoxEnabled, UpdateSourceTrigger=PropertyChanged}" />
</DataTemplate>
</dxgcore:GridColumn.CellTemplate>
</dxgcore:GridColumn>
And Notifychanged property
private bool _isChecked;
public bool IsChecked
{
get { return _isChecked; }
set
{
_isChecked = value;
RaisePropertyChanged("IsChecked");
}
}