Binding LinkButton in datagrid with Command Using MVVM RSS

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  asimsajjad

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  Binding LinkButton in datagrid with Command Using MVVM

  Jun 01, 2011 05:26 AM | LINK

  I have following xaml code.

   <sdk:DataGrid  AutoGenerateColumns="False" ItemsSource="{Binding StudentList, Mode=TwoWay}">
                  <sdk:DataGrid.Columns>
                      <sdk:DataGridTextColumn Binding="{Binding Path=RollNumber}" Header="Roll Number" IsReadOnly="True"  />
                      <sdk:DataGridTextColumn Binding="{Binding StudentName}" Header="Student Name" IsReadOnly="True"/>
                      <sdk:DataGridTextColumn Binding="{Binding DateOfBirth, Converter={StaticResource showOnlyDate}}" Header="Date Of Birth" IsReadOnly="True"/>
                      <sdk:DataGridTextColumn Binding="{Binding RecordAge}" Header="Created Since" IsReadOnly="True"/>
                      <sdk:DataGridTextColumn Binding="{Binding RecordOwner}" Header="Created By" IsReadOnly="True"/>
                      <sdk:DataGridTemplateColumn>
                          <sdk:DataGridTemplateColumn.CellTemplate>
                              <DataTemplate>
                                  <HyperlinkButton Content="Delete"  Margin="5,2" Foreground="Black" ToolTipService.ToolTip="{Binding StudentName, StringFormat='Delete {0}'}"
                                                       Command="{Binding  Path=DataContext.Delete,ElementName=HomePage}" CommandParameter="Some Value"/>
                              </DataTemplate>
                          </sdk:DataGridTemplateColumn.CellTemplate>
                      </sdk:DataGridTemplateColumn>
                  </sdk:DataGrid.Columns>
              </sdk:DataGrid>

  
   

  In the above code you can see that I have set the ItemSource for the datagrid and bind each of the property which is in the collection. But I have one command which need to bi bind with the delete linkbutton in the data grid. the command didn't fire when I click on the delete linkbutton in the grid. what is wrong with the code. 

  which

  Silver light 4

  Asim Sajjad
  http://asimsajjad.blogspot.com
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  Amanvir.mundra

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  Re: Binding LinkButton in datagrid with Command Using MVVM

  Jun 01, 2011 05:53 AM | LINK

  Hi Asim

  I cant say why, but Element to element binding sometimes does not work in certain scenerios.

  But if you declare your ViewModel as a StaticResource in your Usercontrol resources and bind your Hyperlink button as:

  <HyperlinkButton Content="Delete"  Margin="5,2" Foreground="Black" ToolTipService.ToolTip="{Binding StudentName, StringFormat='Delete {0}'}"
                                                       Command="{Binding  Delete, Source={StaticResource ViewModel}}/>

  Then it would surely work.

  If the ViewModel constructor takes some Parameters then you can add the ViewModel as a StsticResource in your xaml.cs file like this:

  Resources.Add("ViewModel", viewModel);

  This should be done before the InitializeComponent() method.

  Regards
  Aman
  Please mark as answer if issue is resolved