Gantt Control - Cell with Combox Binding

[Ondrej]

Hi,

is there any way how to binding ViewModel ItemsSource to ComboBox inside Gantt? I have custom column with CellType ComboBox.

I didn't found any similar example. Thanks

Ondrej Rada

[Rachel A]

Hi Ondrej, 

Greetings from Syncfusion. 

We have prepared sample for having combo box column, download the sample from the below link. 

https://www.syncfusion.com/downloads/support/directtrac/general/ze/EXTERN_1-1751686401300340507 

Also, find the code example below to implement the same. 

[C#] 

  private void Gantt_OnLoaded(object sender, RoutedEventArgs e) 

        { 

            ObservableCollection<double> RiskPercent = new ObservableCollection<double>(); 

            RiskPercent.Add(10); 

            RiskPercent.Add(20); 

            RiskPercent.Add(30); 

            RiskPercent.Add(40); 

            RiskPercent.Add(50); 

            RiskPercent.Add(60); 

            RiskPercent.Add(70); 

            RiskPercent.Add(80); 

            RiskPercent.Add(90); 

 

            // Creating a new custom column with combo box 

            GridTreeColumn riskColumn = new GridTreeColumn 

                                           { 

                                               MappingName = "RiskPercentage", 

                                               HeaderText = "Risk", 

                                               Width = 120, 

                                               StyleInfo = new GridStyleInfo 

                                                               { 

                                                                   CellType = "ComboBox", 

                                                                   ItemsSource = RiskPercent, 

                                                                   HorizontalAlignment = 

                                                                       HorizontalAlignment 

                                                                           .Center, 

                                                                   VerticalAlignment = 

                                                                       VerticalAlignment 

                                                                           .Center 

                                               } 

                                           }; 

 

            this.Gantt.GanttGrid.InternalGrid.DropDownSelectionChanged += InternalGrid_DropDownSelectionChanged; 

             

            this.Gantt.GanttGrid.Columns.Insert(2, riskColumn); 

        } 

 

        private void InternalGrid_DropDownSelectionChanged(object sender, GridCellComboValueChangedEventArgs args) 

        { 

            GridTreeNode node = this.Gantt.GanttGrid.InternalGrid.GetNodeAtRowIndex(args.CellRowColumnIndex.RowIndex); 

            int risk; 

            if (node != null && node.Item != null) 

            { 

                if (int.TryParse(args.SelectedItem as string, out risk)) 

                { 

                    (node.Item as Task).RiskPercentage = risk; 

                } 

            } 

        } 

 

Thanks, 

Rachel.