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How to get detail table client id on the OnHierarchyCollapsed/OnHierarchyExpanded

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Grid

This is a migrated thread and some comments may be shown as answers.

sudhir singh asked on 05 May 2010, 06:52 AM

Hi,
I have a grid with 3 level hierarchy. I wanted to get the client id of the expaned/collapsed detailtable when the expand/collapse image button is clicked.The detailtable just below the button expanded/collapse.
I can get this work for two level by the following code

    
             <ClientSettings AllowExpandCollapse="True"> 
        
                                            <ClientEvents OnHierarchyCollapsed="Collapsed" /> 
        
                                            <ClientEvents OnHierarchyExpanded="Expanded" /> 
        
            </ClientSettings> 
        
            <script type="text/javascript" language="javascript"> 
        
                function Collapsed(sender, eventArgs) { 
        
                    var radgrid = sender; 
        
                    var detailTablesArray = radgrid.get_detailTables(); 
        
                    document.getElementById(detailTablesArray[eventArgs.get_itemIndexHierarchical()]._data.ClientID).style.display = "none"; 
        
                } 
        
                function Expanded(sender, eventArgs) { 
        
                    var radgrid = sender; 
        
                    var detailTablesArray = radgrid.get_detailTables(); 
        
                    document.getElementById(detailTablesArray[eventArgs.get_itemIndexHierarchical()]._data.ClientID).style.display = "inline"; 
        
                } 
        
            </script>

But incase of 3 level hierarchy i get the value of "eventArgs.get_itemIndexHierarchical()" for the level two "expand/collapse" click as something like "2:0_2" and hence not able to index the detailtable array.
I need to do this for totally different issue though it seems from code above that i am just hiding / showing the detail table. All i need is the client id for the detailtable for the expanded/collapsed row.

Appreciate any help on this.
Thanks,
Sudhir.

2 Answers, 1 is accepted

answered on 05 May 2010, 07:28 AM

Hi Sudhir,

You can access the expanded/collapsed detailtable from the eventArgs object of the event. Here is an example.

JavaScript:

    
            <script type="text/javascript">
 
                function OnHierarchyExpanded(sender, args) {
 
                    var detailTable = args.get_gridDataItem().get_nestedViews()[0];
 // get_gridDataItem() is not directly available on the client unless OnRowCreating/OnRowCreated events are hooked up.
        
                    alert(detailTable.get_dataItems().length);
 
                }
 
                function OnHierarchyCollapsed(sender, args) {
 
                    var detailTable = args.get_gridDataItem().get_nestedViews()[0];
 
                    alert(detailTable.get_dataItems().length);
 
                }
 
                function OnRowCreated(sender, args) {
 
                }
 
            </script>

-Shinu.