Bring a specific row into view

[Nick Verschueren]

In our project a Gantt can have hunderds to even a few thousand resources shown as rows.

Is there a way to scroll to a specific row from code, either by index or by the bound item?

[Nick Verschueren]

Meanwhile I found the following workaround for this, but I would appreciate a better solution if anybody has one.

public static class GanttControlExtensions
{
  public static void ScrollToItem(this GanttControl gantt, object item)
  {
    gantt.SelectedItems.Clear();
    gantt.SelectedItems.Add(item);
    var idx = gantt.Model.GetRowIndexFromItem(item);
    var border = VisualTreeHelper.GetChild(gantt.GanttGrid, 0);
    var scrollViewer = (ScrollViewer)VisualTreeHelper.GetChild(border, 0);
    scrollViewer.ScrollToVerticalOffset(Math.Max((idx - 1) * gantt.RowHeight, 0));
  }
}

[Suresh S]

Hi Nick,

We are currently analyzing on any workaround feasibility for requirement. Hence, We will update by tomorrow

Regards,

Suresh S

[Suresh S]

Hi Nick,

We have analyzed your query and achieved your requirement of bringing specific record in to view. We have prepared a sample based on this, please download from below location,

Let us know in case of any query.

Regards,

Suresh S

Attachment: GridTreeControl_Sample_5a91decc.zip

[Suresh S]

Hi Nick,

Please ignore our previous update.

We have prepared a sample to bring specific record into view, please download from below location.

CodeSnippet:

RowColumnIndex rowcolumnindex = new RowColumnIndex();

            rowcolumnindex.RowIndex = Convert.ToInt16(txtbox.Text);

            this.GanttControl.GanttGrid.Model.TreeGrid.ScrollInView(rowcolumnindex);

            this.GanttControl.GanttGrid.Model.TreeGrid.CurrentCell.MoveTo(rowcolumnindex);

Note:

In the sample, when the ganttcontrol is loaded, initially a specific row should be selected and then we can input the row index in the user option to bring the record into view.

Please let us know in case of any query.

Regards,

Suresh S

Attachment: GanttControl_6404e168.zip