Question

Hi!
I would like to hide some of the rows in my gantt component. Is that possible?

Answer

Yes in GTP.NET 2.0 you simple set GridNode.Visible=false. This is a great way to filter out data rows from view based on if they have time items in view or not.

Question

I’m using GTP_asp in web.
How can I put a scrollbarcolumn in my grid on gantt_asp?

Answer

The Gantt supports paging that will split up long dataranges over several pages with page numbers at the bottom of the Gantt.

But if you do not want to page your data but rather scroll it you can do so by enclosing the Gantt_ASP in a scrolling div.

A scrolling div looks like this:

<div style=”border : solid 2px #ff0000; background : #000000; color : #ffffff; padding : 4px; width : 200px; height : 50px; overflow : auto; “>
<Gantt_ASP>
</div>

Question

Is there a way with the GTP.Net version to make the gantt fill one page only? For example, if I have 100 rows in the Gantt chart I need them to all print on one page. I have worked with the scaling and the examples that are on your website but I have not found a solution yet.

Answer

A bit if a hack but why not make a loop and print with decreasing scale until you get HasMorePages==false< ?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

Question

Can we drill down on any bar in the gantt chart?

Answer

If the question is “Can we catch all possible events on a time item” the answer is yes. The term “drill down” implies that there is data “under” this time item, and there probably is, but that is up to you to decide what that data is. Our components merly offer you a clean way to make changes and presentation to the data you provide.

Question

Im using the _gantt_OnAreaAttributes() method to set up event handlers inside e.Result for the items on the gantt chart according to their e.AreaKind.

If I leave e.Result as it is then the item appears with the mouse cursor as a “hand” and causes a post back when you click the item. 
Is there something I can put in the e.Result to manipulate the mouse cursor type?

Answer

I thought that this should be as easy as:

    private void Gantt_ASP1_OnAreaAttributes(PlexityHide.GTP.WEB.Gantt_ASP aGantt, PlexityHide.GTP.WEB.AreaAttributeEventArgs e)
    {
      if (e.AreaKind==AreaKind.TimeItem)
      {
        e.Result+=" onmouseover=\"this.style.cursor='crosshair';return true;\" "; // add a cursor switch in mouse over
      }
    }
But I cannot get it to work, and I cannot really understand why. I think this is some browser limitation.
If I set this code in the img tag itself it will change the cursor, but it seems like IE6 will not run onMouseOver's for image maps.

So Sorry, cannot not currently help you. If you figure anything out please let me know...

Question

Question

We’re using plexityHide Gantt 1.3. How do I make sure my selected ganttrow is visible for the user? I’m able to select to row but not to scroll/navigate to it so it’s visible for the user.

Note: The timeItem is not selected by the user in the gantt.

/////////////
_selectedTimeItem = tmpTi;
//Expand selected parent node
GridNode gn = _selectedTimeItem.GanttRow.GridNode;
if (!gn.ParentNode.Expanded){
 gn.ParentNode.Expanded = true;
}
this.Grid.GridStructure.ClearSelections();
gn.RowSelected = true;

Answer

In version 1.3 you will need to set the Gantt.Grid.Gridstructure.TopNode property to the desired node… If it is the last node this will look a bit strange so you might want some logic to set Gantt.Grid.Gridstructure.TopNode to a more appropriate value.

If you upgrade to 2.x you simply call gn.MakeSureVisible().

In 2.x you also have MakeSureVisible calls on TimeItems and cells.

Question

With Gantt, is there a simple way to make TimeItems read-only i.e. a user cant move them?

Answer

Yes. each TimeItem has a TimeItemLayout (you may re-use timeItemLayouts to several timeItems). In the TimeItemLayout set these properties:
AllowChangeRow=false
 AllowChangeRow=false
 AllowLinkReAssignStart=false
 AllowLinkReAssignTarget=false
 AllowLinkSelectionStart=false
 AllowLinkSelectionTarget=false
 AllowMove=false
 AllowResizeEast=false
 AllowResizeWest=false

As you see the granularity to control what a user is allowed to do or not is high.