What is difference between e.Item.ItemIndex and e.Item.ItemIndexHierarchical?

[shunman]

Hello Telerik.

I just curious about what's difference between e.Item.ItemIndex and e.Item.ItemIndexHierarchical?

[Jayesh Goyani]

Hello shunman ,


Please check below code snippet.

e.Item.ItemIndex : gives current row index.

 

e.Item.ItemIndexHierarchical : It gives information about current row index as well as also give information where this grid (at which child level)  placed in grid.

Note :

e.item.ItemIndex : 2
e.Item.ItemIndexHierarchical : 1:0_2

means
1 : this Hierarchical grid exists under second row (one index) of parent grid
0 : this is first Hierarchical grid in the second row
2 : current row index
 

<telerik:RadGrid ID="RadGrid1" runat="server" AutoGenerateColumns="false" OnNeedDataSource="RadGrid1_NeedDataSource"

           OnItemDataBound="RadGrid1_ItemDataBound"
OnDetailTableDataBind="RadGrid1_DetailTableDataBind">

           <MasterTableView HierarchyDefaultExpanded="true"

            Name="Parent">

 

               <Columns>

                   <telerik:GridBoundColumn DataField="ID" HeaderText="ID" UniqueName="ID">

                   </telerik:GridBoundColumn>

                   <telerik:GridBoundColumn DataField="Name" HeaderText="Name" UniqueName="Name">

                   </telerik:GridBoundColumn>

                  

                    

               </Columns>

               <DetailTables>

                   <telerik:GridTableView Name="Child">

                       <Columns>

                           <telerik:GridBoundColumn DataField="ID" HeaderText="ID" UniqueName="ID1">

                           </telerik:GridBoundColumn>

                           <telerik:GridBoundColumn DataField="Name" HeaderText="Name" UniqueName="Name1">

                           </telerik:GridBoundColumn>

                       </Columns>

                   </telerik:GridTableView>

               </DetailTables>

           </MasterTableView>

       </telerik:RadGrid>

protected void RadGrid1_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
    {

        DateTime dt = new DateTime();

        dynamic data = new[] {
                new { ID = 1, Name ="Name1", customdate=dt},
                new { ID = 2, Name = "Name2", customdate=dt},
                new { ID = 3, Name = "Name3", customdate=dt},
                new { ID = 4, Name = "Name4", customdate=dt.AddYears(2011)},
                new { ID = 5, Name = "Name5", customdate=dt}
            };

        RadGrid1.DataSource = data;
    }
protected void RadGrid1_DetailTableDataBind(object sender, GridDetailTableDataBindEventArgs e)
    {
        DateTime dt = new DateTime();

        dynamic data = new[] {
                new { ID = 11, Name ="Name1", customdate=dt},
                new { ID = 22, Name = "Name2", customdate=dt},
                new { ID = 33, Name = "Name3", customdate=dt},
                new { ID = 44, Name = "Name4", customdate=dt.AddYears(2011)},
                new { ID = 55, Name = "Name5", customdate=dt}
            };

        e.DetailTableView.DataSource = data;
    }

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
    {

        if (e.Item is GridDataItem)
        {
            if (e.Item.OwnerTableView.Name == "Parent")
            {
                int test1 = e.Item.ItemIndex;
                string test2 = e.Item.ItemIndexHierarchical;
            }
            if (e.Item.OwnerTableView.Name == "Child")
            {
                int test1 = e.Item.ItemIndex;
                string test2 = e.Item.ItemIndexHierarchical;
            }
        }
}

Thanks,
Jayesh Goyani