FlexGrid (WPF): Column Binding in Codebehind is NOT effective

FlexGrid (WPF): Column Binding in Codebehind is NOT effective

Posted by: trancuong200495 on 6 May 2018, 9:15 pm EST

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  trancuong200495

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  Posted 6 May 2018, 9:15 pm EST

  Dear C1 Support Team
  
  Because my requirements I need dynamic generate column in code behind, and moreover It has Binding Converter, ConverterParameter. So I do it as below but it NO call to Converter when generate column. I spent much time to debug and found solution but I can’t . Could you to see and Show me any wrong. I am so appreciate !

  private static void ColumnsSourceChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
  
  {
  
  C1FlexGrid grid = d as C1FlexGrid;
  
  if (grid == null || e.NewValue == null) return;

          IEnumerable<IHeaderCell> cols = e.NewValue as IEnumerable<IHeaderCell>;
          if (cols == null) return;
  
          int num = 0;
  
          foreach (IHeaderCell col in cols)
          {
              Column gridViewColumn = new Column();
              if (!string.IsNullOrEmpty(col.CellConverterKey) && grid.Resources.Contains(col.CellConverterKey))
              {
                  var binding = new Binding();
                  binding.Converter = grid.Resources[col.CellConverterKey] as IValueConverter;
                  binding.ConverterParameter = col;
                  
                  gridViewColumn.Binding = binding;
              }
  
              if (col.CellTemplateKeySelector != null)
              {
                  string cellTemplateResourceKey = col.CellTemplateKeySelector(null);
                  if (grid.Resources.Contains(cellTemplateResourceKey))
                  {
                      gridViewColumn.CellTemplate = grid.Resources[cellTemplateResourceKey] as DataTemplate;
                  }
              }
  
              grid.Columns.Add(gridViewColumn);
  
              ++num;
          }
      }
  

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  trancuong200495

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  Posted 7 May 2018, 4:06 pm EST

  If I generate column in code behind and then set both Binding and CellTemplate, Binding is not effective, if I only add binding it operate ok ? why?

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  Ruchir.Agarwal

  

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  Posted 7 May 2018, 6:13 pm EST

  Hello,
  
  If you wish to dynamically set CellTemplate, Binding Converter, ConverterParameter in code-behind, then I would suggest you to use CellFactory. CellFactory consists of various methods, any of which can be overridden. I have attached a demo application ‘DynamicImages’ setting Converter etc for choosen columns.
  
  In case you wish to do that in XAML, then for that also I have attached a sample ‘ConditionalFormatting’ setting Binding Converter, ConverterParameter etc in xaml.
  
  Also, for learning more about C1FlexGrid in WPF, I suggest you to refer various product samples installed at ‘\Documents\ComponentOne Samples\WPF\C1.WPF.FlexGrid\CS’

  Thanks,
  
  Ruchir Agarwal
  
  ConditionalFormatting.zip
  
  DynamicImages.zip