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"Scrolling to the selected item" not working in Firefox

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Andreas Kaech
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Andreas Kaech asked on 29 May 2008, 07:31 AM
Hi,
your example "Scrolling to the selected item" works fine in IE but not in Firefox. You see the selected Row a short time - then the cursor jumps to the top.
Could it be, that another  function "disturbs" this action in Firefox?

Regards,
Andreas

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Rosen
Telerik team
answered on 30 May 2008, 02:05 PM
Hello Andreas Kaech,

Indeed this behavior can be observed. In order to workaround it you can try delaying the execution of the code. The code should look similar to this:

  function onGridCreated()  
                {                   
                    var RadGrid1 = $find("<%= RadGrid1.ClientID %>");  
                      
                      //select one of the rows  
                      RadGrid1.get_masterTableView().get_dataItems()[17].set_selected("true");  
                      // get the selected row  
                      var row = RadGrid1.get_masterTableView().get_selectedItems()[0];  
                      if (row)  
                      {          
                        setTimeout(function(){  
                                var rowElement = row.get_element();  
                                //get the main table scrollArea HTML element  
                                var scrollArea = RadGrid1.GridDataDiv;  
                                         
                               //check if the selected row is below the viewable grid area  
                               if((rowElement.offsetTop - scrollArea.scrollTop) +  
                                   rowElement.offsetHeight + 20 > scrollArea.offsetHeight)  
                               {  
                                  //scroll down to selected row  
                                  scrollArea.scrollTop = scrollArea.scrollTop +  
                                    (rowElement.offsetTop - scrollArea.scrollTop) +  
                                    (rowElement.offsetHeight - scrollArea.offsetHeight) +  
                                    rowElement.offsetHeight;  
                               }  
                               //chck if the selected row is above the viewable grid area  
                               else if((rowElement.offsetTop - scrollArea.scrollTop) < 0)  
                               {  
                                  //scroll the selected row to the top  
                                  scrollArea.scrollTop = rowElement.offsetTop;  
                               }  
                           }, 200);  
                     }  
                } 
 
Let us know if further assistance is needed.

Best wishes,
Rosen
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Andreas Kaech
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answered on 30 May 2008, 02:35 PM
Hi Rosen,
thanks, you can check this thread as solved ;-)
Perhaps, in one of the next releases, this firefox-issue will be taken into consideration - who knows...

Best wishes,
Andreas 
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Maas Prog
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answered on 17 Apr 2010, 12:10 AM
Hi All - I am trying to move to selected row  in a grid with many rows.... the selected row is not visible on page load. I have tried this code, but what happens is that on load I cannot select any row.
This is the line that is dying:

RadGrid1.get_masterTableView().get_dataItems()[17].set_selected("true");

I have put alerts after this in code and before and the ones before show but not after. I am using a self-referncing hierachical grid if that makes a difference.... and the selected row is in a child table... Any ideas?

Thanks
For
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BaiH
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answered on 19 Apr 2010, 11:34 AM
Maybe you should try selecting the appropriate detailTable's item, not the masterTableView's.

--BH
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Andreas Kaech
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BaiH
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