Simple datagrid w/ checkboxes RSS

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  goillini20

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  Simple datagrid w/ checkboxes

  Jun 03, 2009 02:07 AM | LINK

  I'm creating a datagrid with templates that hold checkboxes so I can fire events from it. When I click the checkbox and scroll down, select another row in the grid, and scroll back up, the check in the checkbox I clicked disappears. Does anyone know why? XAML:

      <Grid x:Name="LayoutRoot" Background="White">
          <data:DataGrid Name="myDataGrid" AutoGenerateColumns="False">
              <data:DataGrid.Columns>
                  <data:DataGridTextColumn Header="Name" Binding="{Binding Path=Name}" IsReadOnly="True"/>
                  
                  <data:DataGridTemplateColumn Header="Check">
                      <data:DataGridTemplateColumn.CellTemplate>
                          <DataTemplate>
                              <CheckBox Checked="CheckBox_Checked" Unchecked="CheckBox_Unchecked"/>
                          </DataTemplate>
                      </data:DataGridTemplateColumn.CellTemplate>
                  </data:DataGridTemplateColumn>
                  
              </data:DataGrid.Columns>
          </data:DataGrid>
  
  

  Code behind:

  public partial class Page : UserControl
      {
          public Page()
          {
              InitializeComponent();
  
              List<Person> people = new List<Person>();
  
              for (int i = 0; i < 100; i++)
                  people.Add(new Person("test", false));
  
              myDataGrid.ItemsSource = people;
  
          }
  
          private void CheckBox_Checked(object sender, RoutedEventArgs e)
          {
              MessageBox.Show("clicked");
  
          }
  
          private void CheckBox_Unchecked(object sender, RoutedEventArgs e)
          {
              MessageBox.Show("unclicked");
  
          }
      }
  

  Person class:

  public class Person
      {
          public string Name
          {
              get;
              set;
          }
          public bool IsChecked
          {
              get;
              set;
          }
  
          public Person()
          {
              Name = "";
              IsChecked = false;
          }
  
          public Person(string name, bool ischecked)
          {
              Name = name;
              IsChecked = ischecked;
          }
      }
  

  Thanks for your help!

  c# XAML Silverlight 2.0 databinding datagrid Data binding C# datagrid C#. Data Template Data Template problem

• 

  mehroz

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  Re: Simple datagrid w/ checkboxes

  Jun 03, 2009 08:56 AM | LINK

   You will need to "bind" your checkbox to the underlying property. Change the checkbox xaml construct to 

  <CheckBox Checked="CheckBox_Checked" Unchecked="CheckBox_Unchecked"
  IsChecked="{Binding Path=IsChecked, Mode=TwoWay}" />

  Hope that helps,

  Regards,
  

• 

  goillini20

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  Re: Simple datagrid w/ checkboxes

  Jun 03, 2009 12:48 PM | LINK

  Worked! I was playing around with the binding but forgot to include the binding mode-- Thanks Alan