problem with GridViewCheckBoxColumn in WPF

[Gudla]

Hi,

I have problem with telerik GridViewCheckBoxColumn.

The code is

 <telerik:GridViewCheckBoxColumn   SourceUpdated="IsAchievedColumn_SourceUpdated" Header="{x:Static resources:MultilingualTranslations.Rebates_Admin_RebateDetailsJbp_DataGrid_IsAchievedColumn_HeaderCaption}" 
                                            IsReadOnly="False"  x:Name="IsAchievedColumn"  DataMemberBinding="{Binding IsAchieved,Mode=TwoWay,UpdateSourceTrigger= PropertyChanged}" >

When I edit checkbox with unchecked then it is not immediatly setting IsAchieved property to false ,it is doing when I remove the focus from the cell.I hope you understand the problem.



Can you please suggest what needs to be done ASAP please.

[Maya]

Hello Gudla,

Generally, this would be the expected behavior since the changes are committed after the CellEditEnded even has been executed. What you may try to do for updating the property without the need of losing the focus is to define you column as follows:

<telerik:GridViewDataColumn DataMemberBinding="{Binding IsPlaying}" IsReadOnly="True">
                <telerik:GridViewDataColumn.CellTemplate>
                    <DataTemplate>
                        <CheckBox IsChecked="{Binding IsPlaying, Mode=TwoWay}"
                                  telerik:StyleManager.Theme="Office_Black"/>
                    </DataTemplate>
                </telerik:GridViewDataColumn.CellTemplate>
            </telerik:GridViewDataColumn>

Furthermore, you might take a look at this article for a further reference.

Best wishes,
Maya
the Telerik team

[Vikash]

Hello Team,

If we scroll down in RadgridView,then selected checkbox got unselected.
Please provide solution to this problem ASAP.

Here is code :

 

<telerik:RadGridView Name="grdForms" Margin="367,134,0,0" SelectionUnit="Cell" ShowGroupPanel="False" Width="320" Height="500" HorizontalAlignment="Left" VerticalAlignment="Top" AutoGenerateColumns="False" PreviewMouseLeftButtonUp="grdForms_PreviewMouseLeftButtonUp">
           <telerik:RadGridView.Columns>
               <telerik:GridViewDataColumn>
                   <telerik:GridViewDataColumn.CellTemplate>
                       <DataTemplate>
                           <CheckBox IsChecked="{Binding IsPlaying, Mode=TwoWay}"
                                 telerik:StyleManager.Theme="Office_Black"/>
                       </DataTemplate>
                   </telerik:GridViewDataColumn.CellTemplate>
               </telerik:GridViewDataColumn>

               <telerik:GridViewDataColumn DataMemberBinding="{Binding ID}" Header="ID" IsVisible="False" TextAlignment="Left" Width="*" />
               <telerik:GridViewDataColumn DataMemberBinding="{Binding Name}" Header="Form Name" TextAlignment="Left" Width="*" />
           </telerik:RadGridView.Columns>
       </telerik:RadGridView>

[Maya]

Hi Vikash, 

Generally, such behavior can be reproduced if the binding is not correct. Could you provide a bit more information about the way you define your column ?  

Kind regards,
Maya
the Telerik team

[Vikash]

 Hello team,
 Please check the code.If there are too many records in radgridview if we checked first record then scroll to last one then the first one i.e selected becomes unselected.

<telerik:RadGridView Name="grdForms" Margin="367,134,0,0" SelectionUnit="Cell" ShowGroupPanel="False" Width="320" Height="500" HorizontalAlignment="Left" VerticalAlignment="Top" AutoGenerateColumns="False" PreviewMouseLeftButtonUp="grdForms_PreviewMouseLeftButtonUp">

           <telerik:RadGridView.Columns>

               <telerik:GridViewDataColumn>

                   <telerik:GridViewDataColumn.CellTemplate>

                       <DataTemplate>

                           <CheckBox IsChecked="{Binding IsSelected, Mode=TwoWay}"

                                 telerik:StyleManager.Theme="Office_Black"/>

                       </DataTemplate>

                   </telerik:GridViewDataColumn.CellTemplate>

               </telerik:GridViewDataColumn>

                

               <telerik:GridViewDataColumn DataMemberBinding="{Binding ID}" Header="ID" IsVisible="False" TextAlignment="Left" Width="*" />

               <telerik:GridViewDataColumn DataMemberBinding="{Binding Name}" Header="Form Name" TextAlignment="Left" Width="*" />

           </telerik:RadGridView.Columns>

       </telerik:RadGridView>

[Maya]

Hi again,

Could you try setting DataMemberBinding property of the column ? Do you get the same behavior ? 

Regards,
Maya
the Telerik team

[Vikash]

Hi Maya,

Thanks for your help.
  
One more issues in radgridview.

how to get row in radgridview.I am using this code but its return null for those rows which are hidden by radgridview.

  for (int rowCounter = 0; rowCounter < grdForms.Items.Count; rowCounter++)
                {
                    object o = grdForms.Items[rowCounter];
                    GridViewRow grdFormRow = (GridViewRow)grdForms.ItemContainerGenerator.ContainerFromItem(o);
                    if (grdFormRow != null)
                    {


}
}