WPF Tips And Facts

• Do you know that there is no way (at least from my research and experiments) to hide the control box of a dialog. I tried several ways including using Native GetWindowLong and SetWindowLong to set the border style as fixed dialog but in vein.
  
  
• One of the hardest things in WPF is to prevent re-size of a column in ListView. One way is to completely templatize ColumnHeader and comment out the thumb gripper. This approach is listed here: http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/fa97b3a3-c5ca-4643-8e95-c2c23032de2c. I like the other approach listed in the article where one can attach a handler like:
  
  MyListView.AddHandler(Thumb.DragDeltaEvent,
  new DragDeltaEventHandler(this.OnHeaderResize),
  true);
  
  And handle it:
  
  private void OnHeaderResize(object sender, DragDeltaEventArgs e)
  {
  Thumb SenderAsThumb = e.OriginalSource as Thumb;
  GridViewColumnHeader header = SenderAsThumb.TemplatedParent as GridViewColumnHeader;
  
  if (header == null)
  {
  return;
  }
  
  GridView view = (MyListView.View as GridView);
  
  // If user tries to resize checkbox column, reset the width to fixed
  if (view.Columns[0] == header.Column)
  {
  header.Column.Width = FixedWidth;
  e.Handled = true;
  }
  }
  
  
• ListView and CheckBox - Following is a method to add a checkbox both to the header and to the column rows in the ListView:
  
  <ListView Height="200" x:Name="MyListView">
  <ListView.View>
  <GridView>
  <GridViewColumn>
  <GridViewColumn.HeaderTemplate>
  <DataTemplate>
  <CheckBox Checked="AllSelectionChanged" Unchecked="AllSelectionChanged"/>
  </DataTemplate>
  </GridViewColumn.HeaderTemplate>
  <GridViewColumn.CellTemplate>
  <DataTemplate>
  <CheckBox IsChecked="{Binding Selected}"/>
  </DataTemplate>
  </GridViewColumn.CellTemplate>
  </GridViewColumn>
  <GridViewColumn Header="Name" DisplayMemberBinding="{Binding Name}"/>
  <GridViewColumn Header="Version" DisplayMemberBinding="{Binding Version}"/>
  <GridViewColumn Header="Path" DisplayMemberBinding="{Binding Path}"/>
  </GridView>
  </ListView.View>
  </ListView>
  
  You can then handle global check / uncheck like:
  
  private void AllSelectionChanged(object sender, RoutedEventArgs e)
  {
  CheckBox chkBox = sender as CheckBox;
  if (chkBox != null)
  {
  bool check = chkBox.IsChecked.Value;
  
  foreach ([YourBoundType] selection in MyListView.Items)
  {
  selection.Selected = check;
  }
  }
  }